102,713 results match your criteria Ecological applications : a publication of the Ecological Society of America[Journal]


Carbonic anhydrase activity as a potential biomarker for acute exposure to copper in corals.

Chemosphere 2019 Apr 15;227:598-605. Epub 2019 Apr 15.

Instituto Coral Vivo, Rua dos Coqueiros, Parque Yaya, Santa Cruz Cabrália, BA, 45807-000, Brazil; Instituto de Ciências Biológicas, Universidade Federal do Rio Grande, Av. Itália, Km 8, Rio Grande, RS, 96203-900, Brazil. Electronic address:

Coral reefs are subjected to climate change and are severely impacted by human activities, with copper (Cu) being a relevant physiological stressor for corals at local scale. The ecological relevance of parameters measured at biochemical or cellular level is now considered an extremely important feature in environmental studies, and can be used as early warning signs of environmental degradation. In this context, the effects of acute exposure (96 h) to Cu were assessed on the maximum photochemical efficiency of zooxanthellae (Fv/Fm) and on the activity of key enzymes [carbonic anhydrase (CA) and Ca-ATPase] involved in coral physiology using the scleractinian coral Mussismilia harttii as a biological model. Read More

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https://linkinghub.elsevier.com/retrieve/pii/S00456535193074
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http://dx.doi.org/10.1016/j.chemosphere.2019.04.089DOI Listing
April 2019
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Urban and agriculturally influenced water contribute differently to the spread of antibiotic resistance genes in a mega-city river network.

Water Res 2019 Apr 12;158:11-21. Epub 2019 Apr 12.

Key Laboratory for Urban Ecological Processes and Eco-Restoration, School of Ecological and Environmental Science, East China Normal University, Shanghai, 200241, China; Shanghai Institute of Pollution Control and Ecological Security, Shanghai, 200092, China; Joint Research Institute for New Energy and the Environment, East China Normal University and Colorado State University, Shanghai, 200062, China. Electronic address:

The widespread of water borne antibiotic resistance genes (ARGs) represents a growing threat to the health of millions of people. Our study detected the relative abundances of 10 ARG subtypes in the Shanghai river network, where the major ARG components were strB, sul1, and ermB. These ARGs were significantly enriched by the combined sewage, tail water from urban wastewater treatment plant and runoff from agricultural areas, which reached the Suzhou (SZ), Dianpu (DP), and Huangpu (HP) River, respectively (one-way ANOVA, P < 0. Read More

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http://dx.doi.org/10.1016/j.watres.2019.03.010DOI Listing

Successional trajectories of soil bacterial communities in mine tailings: The role of plant functional traits.

J Environ Manage 2019 Apr 19;241:284-292. Epub 2019 Apr 19.

Centro de Investigaciones sobre Desertificación (CSIC-UVEG-GV), Carretera Moncada ‒ Náquera, km 4.5, Moncada, Valencia, 46113, Spain.

Plant species identity is assumed to be a major driver of belowground microbial diversity and composition. However, diagnosing which plant functional traits are responsible for shaping microbial communities remains elusive. Primary succession on barren metalliferous mining substrates was selected as the framework to study above-belowground interactions, and plant functional traits that lead the successional trajectories of soil bacterial communities were identified. Read More

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http://dx.doi.org/10.1016/j.jenvman.2019.04.023DOI Listing

Association between prism adaptation and auditory cues on spatial navigation in individuals with unilateral neglect.

Ann Phys Rehabil Med 2019 Apr 19. Epub 2019 Apr 19.

Rehabilitation Unit, University Hospital of Bordeaux, France; EA4136, Bordeaux University, France; French Institute for Research on Handicap (IFRH), France. Electronic address:

Background: Unilateral neglect is common among right-hemispheric stroke individuals and also concerns the auditory modality. Prism adaptation can improve auditory extinction during a dichotic listening task, but its effect during an ecological task has not been studied.

Objective: The main objective was to evaluate whether lateralized cueing before and after prism adaptation improved virtual spatial navigation of stroke individuals with visual and auditory unilateral neglect. Read More

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https://linkinghub.elsevier.com/retrieve/pii/S18770657193005
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http://dx.doi.org/10.1016/j.rehab.2019.03.005DOI Listing
April 2019
1 Read

Genome-wide annotation and comparative analysis of cuticular protein genes in the noctuid pest Spodoptera litura.

Insect Biochem Mol Biol 2019 Apr 19. Epub 2019 Apr 19.

State Key Laboratory of Silkworm Genome Biology, Biological Science Research Center, Southwest University, Chongqing, 400716, China; Chongqing Key Laboratory of Sericultural Science, Chongqing Engineering and Technology Research Center for Novel Silk Materials, Southwest University, Chongqing, 400716, China. Electronic address:

Insect cuticle is considered an adaptable and versatile building material with roles in the construction and function of exoskeleton. Its physical properties are varied, as the biological requirements differ among diverse structures and change during the life cycle of the insect. Although the bulk of cuticle consists basically of cuticular proteins (CPs) associated with chitin, the degree of cuticular sclerotization is an important factor in determining its physical properties. Read More

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http://dx.doi.org/10.1016/j.ibmb.2019.04.012DOI Listing

Asthma mortality in children and adolescents of Brazil over a 20-year period.

J Pediatr (Rio J) 2019 Apr 19. Epub 2019 Apr 19.

Universidade Federal de Minas Gerais (UFMG), Hospital das Clínicas, Belo Horizonte, MG, Brazil.

Objective: To evaluate the number of asthma deaths and the temporal trend of the asthma-specific mortality rate in children and adolescents up to 19 years of age in Brazil.

Methods: This is an ecological time-series study of asthma deaths reported in Brazil, in the population up to 19 years of age, between 1996 and 2015. The specific asthma mortality rate and its temporal trend were analyzed. Read More

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http://dx.doi.org/10.1016/j.jped.2019.02.006DOI Listing

Faecal metabolites and Hair cortisol as biological markers of HPA-axis activity in the Rocky Mountain Goat.

Gen Comp Endocrinol 2019 Apr 19. Epub 2019 Apr 19.

Reproductive Physiology, Toronto Zoo, 361A Old Finch Avenue, Toronto, Ontario, M1B 5K7, Canada.

Monitoring glucocorticoid in faeces and hair is increasingly used in ecological studies and provides a powerful and minimally intrusive mean to identify physiological challenges faced by wild animals. Using a cortisol and a corticosterone immunoassays, we conducted an adrenocorticotropic (ACTH) challenge with five weekly repeated injections to validate the use of faecal glucocorticoid metabolites and hair cortisol concentration as biological markers of the HPA-axis activity in captive mountain goats (Oreamnos americanus). We also investigated the effect of endogenous (age, sex, reproductive status) and methodological (faecal sample collection date, freezing delay and hair type) variables on cortisol values using faecal and hair samples collected from marked wild mountain goats during a long-term study. Read More

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http://dx.doi.org/10.1016/j.ygcen.2019.04.022DOI Listing

Social preferences for ecosystem services in a biodiversity hotspot in South America.

PLoS One 2019 22;14(4):e0215715. Epub 2019 Apr 22.

Department of Ecology, Social-Ecological Systems Laboratory, Universidad Autónoma de Madrid, Madrid, Spain.

Identifying which ecosystem services are relevant to different stakeholders and understanding stakeholders' perceptions of such services is useful for making informed decisions, especially in regions of the world where the achievement of biodiversity conservation goals is threatened by economically productive activities. In this article, we assess social preferences for ecosystem services in a biodiversity hotspot in central Chile. We use a consultative case study to ask local stakeholders (n = 70) from the Campana Peñuelas Biosphere Reserve to identify the most important ecosystem services the area provides for them and inquire about the perceived vulnerability of the services to changes in the future. Read More

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http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0215715PLOS

The spatial epidemiology of leprosy in Kenya: A retrospective study.

PLoS Negl Trop Dis 2019 Apr 22;13(4):e0007329. Epub 2019 Apr 22.

National Tuberculosis Leprosy and Lung Disease Program, Ministry of Health, Nairobi, Kenya.

Background: Leprosy elimination defined as a registered prevalence rate of less than 1 case per 10,000 persons was achieved in Kenya at the national level in 1989. However, there are still pockets of leprosy in some counties where late diagnosis and consequent physical disability persist. The epidemiology of leprosy in Kenya for the period 2012 through to 2015 was defined using spatial methods. Read More

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http://dx.doi.org/10.1371/journal.pntd.0007329DOI Listing

Environmental DNA Shaping A New Era of Ecotoxicological Research.

Authors:
Xiaowei Zhang

Environ Sci Technol 2019 Apr 22. Epub 2019 Apr 22.

Aquatic ecosystems, such as rivers and lakes, are exposed to multiple stressors from anthropogenic activity and changes in climate, which have resulted in a general decrease in biodiversity, alteration of community structures, and can ultimately result in reduction of resources provided by natural ecosystems. Adverse outcomes caused by pollutants to ecosystems are determined not only by toxic properties, but also ecological contexts of ecosystems, including indigenous biodiversity and community composition. It is therefore important to identify key factors, such as diversity of species and traits that determine the vulnerability of structures and functions of ecosystems in response to toxic substances. Read More

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http://dx.doi.org/10.1021/acs.est.8b06631DOI Listing

Random PCR-based genotyping by sequencing technology GRAS-Di reveals genetic structure of mangrove fishes.

Mol Ecol Resour 2019 Apr 22. Epub 2019 Apr 22.

Department of Ecosystem Studies, Graduate School of Agricultural and Life Sciences, University of Tokyo, Bunkyo, Tokyo, 113-8657, Japan.

While various technologies for high-throughput genotyping have been developed for ecological studies, simple methods tolerant to low quality DNA samples are still limited. In this study, we tested the availability of a random PCR-based genotyping-by-sequencing technology GRAS-Di (Genotyping by Random Amplicon Sequencing, Direct). We focused on population genetic analysis of estuarine mangrove fishes, including two resident species, the Amboina cardinalfish (Fibramia amboinensis, Bleeker, 1853) and the Duncker's river garfish (Zenarchopterus dunckeri, Mohr, 1926), and a marine migrant, the blacktail snapper (Lutjanus fulvus, Forster, 1801). Read More

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https://onlinelibrary.wiley.com/doi/abs/10.1111/1755-0998.13
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http://dx.doi.org/10.1111/1755-0998.13025DOI Listing
April 2019
1 Read

np QTL: Networking phenotypic plasticity QTLs across heterogeneous environments.

Plant J 2019 Apr 22. Epub 2019 Apr 22.

Beijing Advanced Innovation Center for Tree Breeding by Molecular Design, Beijing Forestry University, Beijing, 100083, China.

Despite its critical importance to our understanding of plant growth and adaptation, the question of how environment-induced plastic response is affected genetically remains elusive. Previous studies showed that the reaction norm of an organism across environmental index obeys the allometrical scaling law of part-whole relationships. The implementation of this phenomenon into functional mapping can characterize how quantitative trait loci (QTLs) modulate the phenotypic plasticity of complex traits to heterogeneous environments. Read More

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http://dx.doi.org/10.1111/tpj.14355DOI Listing

Modeling the sensitivity of aquatic macroinvertebrates to chemicals using traits.

Environ Sci Technol 2019 Apr 22. Epub 2019 Apr 22.

In this study, a trait-based macroinvertebrate sensitivity modeling tool is presented that provides two main outcomes: (1) it constructs a macroinvertebrate sensitivity ranking and, subsequently, a predictive trait model for each one of a diverse set of pre-defined Modes of Action (MOAs) and (2) it reveals data gaps and restrictions, helping with the direction of future research. Besides revealing taxonomic patterns of species sensitivity, we find that there was not one genus, family or class which was most sensitive to all MOAs, and that common test taxa were often not the most sensitive at all. Traits like life cycle duration and feeding mode were identified as important in explaining species sensitivity. Read More

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http://dx.doi.org/10.1021/acs.est.9b00893DOI Listing

Functional performance of turtle humerus shape across an ecological adaptive landscape.

Evolution 2019 Apr 22. Epub 2019 Apr 22.

Museum of Comparative Zoology and Department of Organismic and Evolutionary Biology, Harvard University, 26 Oxford Street, Cambridge, MA, USA, 02138.

The concept of the adaptive landscape has been invaluable to evolutionary biologists for visualizing the dynamics of selection and adaptation, and is increasingly being used to study morpho-functional data. Here we construct adaptive landscapes to explore functional trade-offs associated with variation in humerus morphology among turtles adapted to three different locomotor environments: marine, semiaquatic, and terrestrial. Humerus shape from 40 species of cryptodire turtles was quantified using a pseudolandmark approach. Read More

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http://dx.doi.org/10.1111/evo.13747DOI Listing

Self-assessment of executive function and lateralization of brain pathology: What does the DEX-S profile show?

Psychiatr Pol 2019 Feb 28;53(1):129-143. Epub 2019 Feb 28.

Wojewódzki Szpital Specjalistyczny, Biała Podlaska.

Objectives: The DEX-S Questionnaire is a tool often used in the self-report of executive difficulties. Numerous data demonstrate that the result of the DEX-S do not differentiate between healthy and clinical groups or people with different characteristics of brain pathology. Limited research taking into account lateralization of damage also did not provide the conclusive data. Read More

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http://dx.doi.org/10.12740/PP/OnlineFirst/85936DOI Listing
February 2019

Effects of Shoal Margin Collapses on the Morphodynamics of a Sandy Estuary.

J Geophys Res Earth Surf 2019 Jan 25;124(1):195-215. Epub 2019 Jan 25.

Department of Physical Geography, Faculty of Geosciences Utrecht University Utrecht Netherlands.

Shoal margin collapses of several million cubic meters have occurred in the Western Scheldt estuary, the Netherlands, on average five times a year over the last decades. While these collapses involve significant volumes of material, their effect on the channel-shoal morphology is unknown. We hypothesize that collapses dynamicize the channel-shoal interactions, which could impact the ecological functioning, flood safety, and navigation in the estuary. Read More

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http://dx.doi.org/10.1029/2018JF004763DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6472556PMC
January 2019

Molecular Identification and Evaluation of Indigenous Bacterial Isolates for Their Plant Growth Promoting and Biological Control Activities against Fusarium Wilt Pathogen of Tomato.

Plant Pathol J 2019 Apr 1;35(2):137-148. Epub 2019 Apr 1.

Department of Botany, Jahangirnagar University, Savar, Dhaka-1342, Bangladesh.

In search of an effective biological control agent against the tomato pathogen f. sp, rhizospheric soil samples were collected from eight agro-ecological zones of Bangladesh. Among the bacteria isolated from soil, 24 isolates were randomly selected and evaluated for their antagonistic activity against f. Read More

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http://dx.doi.org/10.5423/PPJ.OA.06.2018.0104DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6464195PMC

A Conceptual Framework for Examining Healthcare Access and Navigation: A Behavioral-Ecological Perspective.

Authors:
Miriam Ryvicker

Soc Theory Health 2018 Aug 23;16(3):224-240. Epub 2017 Oct 23.

Center for Home Care Policy and Research, Visiting Nurse Service of New York, 1250 Broadway, 7th Floor, New York, NY 10001, ,

This paper introduces a conceptual framework for investigating individual ability to navigate healthcare in the contexts of the built environment, social environment, and healthcare infrastructure in which a person is embedded. Given the complexity of healthcare delivery in the United States, consumers are expected to have an increasingly sophisticated set of skills in order to effectively navigate and benefit from the healthcare resources available to them. Addressing barriers to navigation in vulnerable populations may be essential to reducing health disparities. Read More

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http://link.springer.com/10.1057/s41285-017-0053-2
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http://dx.doi.org/10.1057/s41285-017-0053-2DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6474407PMC
August 2018
1 Read

Traditional plant functional groups explain variation in economic but not size-related traits across the tundra biome.

Glob Ecol Biogeogr 2019 Jan 16;28(2):78-95. Epub 2018 Nov 16.

Environmental Biology, Department Institute of Environmental Sciences, CML, Leiden University Leiden The Netherlands.

Aim: Plant functional groups are widely used in community ecology and earth system modelling to describe trait variation within and across plant communities. However, this approach rests on the assumption that functional groups explain a large proportion of trait variation among species. We test whether four commonly used plant functional groups represent variation in six ecologically important plant traits. Read More

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http://dx.doi.org/10.1111/geb.12783DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6472633PMC
January 2019

Partitioning a reaction-diffusion ecological network for dynamic stability.

Proc Math Phys Eng Sci 2019 Mar 13;475(2223):20180524. Epub 2019 Mar 13.

Department of Computational and Data Sciences, Indian Institute of Science, Bangalore 560012, India.

The loss of dispersal connections between habitat patches may destabilize populations in a patched ecological network. This work studies the stability of populations when one or more communication links is removed. An example is finding the alignment of a highway through a patched forest containing a network of metapopulations in the patches. Read More

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http://dx.doi.org/10.1098/rspa.2018.0524DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6451970PMC

Genetic structure of populations following the use of insecticides on several consecutive years in southern Benin.

Trop Med Health 2019 11;47:23. Epub 2019 Apr 11.

Cotonou Entomological Research Center (CREC), Cotonou, Benin.

Background: Several studies have reported the strong resistance of complex species to pyrethroids. The voltage-dependent sodium channel () gene is the main target of pyrethroids and DDT. In Benin, the frequency of the resistant allele () of this gene varies along the north-south transect. Read More

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https://tropmedhealth.biomedcentral.com/articles/10.1186/s41
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http://dx.doi.org/10.1186/s41182-019-0151-zDOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6458727PMC
April 2019
1 Read

Measuring Progress towards a Circular Economy: A Monitoring Framework for Economy-wide Material Loop Closing in the EU28.

J Ind Ecol 2019 Feb 25;23(1):62-76. Epub 2018 Sep 25.

European Commission Directorate-General Joint Research Centre Sustainable Resources Directorate Ispra Italy.

The concept of a circular economy (CE) is gaining increasing attention from policy makers, industry, and academia. There is a rapidly evolving debate on definitions, limitations, the contribution to a wider sustainability agenda, and a need for indicators to assess the effectiveness of circular economy measures at larger scales. Herein, we present a framework for a comprehensive and economy-wide biophysical assessment of a CE, utilizing and systematically linking official statistics on resource extraction and use and waste flows in a mass-balanced approach. Read More

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http://dx.doi.org/10.1111/jiec.12809DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6472471PMC
February 2019

Evolution of size-dependent intraspecific competition predicts body size scaling of metabolic rate.

Funct Ecol 2019 Mar 20;33(3):479-490. Epub 2018 Dec 20.

Institute for Biodiversity and Ecosystem Dynamics University of Amsterdam Amsterdam The Netherlands.

Growth in body size is accompanied by changes in foraging capacity and metabolic costs, which lead to changes in competitive ability during ontogeny. The resulting size-dependent competitive asymmetry influences population dynamics and community structure, but it is not clear whether natural selection leads to asymmetry in intraspecific competition.We address this question by using a size-structured consumer-resource model, in which the strength and direction of competitive asymmetry between different consumer individuals depends on the scaling of maximum ingestion and maintenance metabolism with consumer body size. Read More

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http://dx.doi.org/10.1111/1365-2435.13253DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6472492PMC

Ecological interactions shape the adaptive value of plant defence: Herbivore attack versus competition for light.

Funct Ecol 2019 Jan 20;33(1):129-138. Epub 2018 Nov 20.

Laboratory of Entomology Wageningen University Wageningen The Netherlands.

Plants defend themselves against diverse communities of herbivorous insects. This requires an investment of limited resources, for which plants also compete with neighbours. The consequences of an investment in defence are determined by the metabolic costs of defence as well as indirect or ecological costs through interactions with other organisms. Read More

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http://dx.doi.org/10.1111/1365-2435.13234DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6472621PMC
January 2019

Chlorophyll content estimation in an open-canopy conifer forest with Sentinel-2A and hyperspectral imagery in the context of forest decline.

Remote Sens Environ 2019 Mar;223:320-335

Department of Geography, Swansea University, SA2 8PP Swansea, United Kingdom.

With the advent of Sentinel-2, it is now possible to generate large-scale chlorophyll content maps with unprecedented spatial and temporal resolution, suitable for monitoring ecological processes such as vegetative stress and/or decline. However methodological gaps exist for adapting this technology to heterogeneous natural vegetation and for transferring it among vegetation species or plan functional types. In this study, we investigated the use of Sentinel-2A imagery for estimating needle chlorophyll (C) in a sparse pine forest undergoing significant needle loss and tree mortality. Read More

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https://linkinghub.elsevier.com/retrieve/pii/S00344257193003
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http://dx.doi.org/10.1016/j.rse.2019.01.031DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6472624PMC
March 2019
1 Read

Prospective memory assessment in acute mild traumatic brain injury.

Clin Neuropsychol 2019 Apr 22:1-20. Epub 2019 Apr 22.

a Department of Psychology , Université du Québec à Montréal , Montreal , Canada.

Objective: Prospective memory (PM) is the ability to remember to perform an intention at the appropriate time in the future. It is of primary importance for daily living, and its disruption may impact functional autonomy. To date, few studies have examined PM during the acute phase of mild traumatic brain injury (mTBI), despite the high prevalence of this neurological condition and its potential impact on cognition. Read More

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https://www.tandfonline.com/doi/full/10.1080/13854046.2019.1
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http://dx.doi.org/10.1080/13854046.2019.1598500DOI Listing
April 2019
1 Read

Digest: Unlocking the Creative Potential of Specialization.

Evolution 2019 Apr 22. Epub 2019 Apr 22.

University of South Carolina.

Do constant environments produce ecological specialists? Wang et al. (2019) test this common assumption in Drosophila melanogaster and find that the converse may be true: constant environments sometimes produce robust generalists that can withstand change. In this study, increased tolerance to change may be best explained as a by-product of adaptation to a particularly harsh salt-enriched environment. Read More

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http://dx.doi.org/10.1111/evo.13749DOI Listing

Environmental niche patterns of native and non-native fishes within an invaded African river system.

J Fish Biol 2019 Apr 21. Epub 2019 Apr 21.

Department of Ichthyology and Fisheries Science, Rhodes University, Grahamstown, South Africa.

To test ecological niche theory, this study investigated the spatial patterns and the environmental niches of native and non-native fishes within the invaded Great Fish River system, South Africa. For the native fishes, there were contrasting environmental niche breadths that varied from being small to being large and overlapped for most species, except minnows that were restricted to headwater tributaries. In addition, there was high niche overlap in habitat association among fishes with similar distribution. Read More

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http://dx.doi.org/10.1111/jfb.13988DOI Listing

The plant body as a network of semi-autonomous agents: a review.

Authors:
Beata Oborny

Philos Trans R Soc Lond B Biol Sci 2019 Jun;374(1774):20180371

1 Institute of Biology, Loránd Eötvös University , Budapest , Hungary.

Plants can solve amazingly difficult tasks while adjusting their growth and development to the environment. They can explore and exploit several resources simultaneously, even when the distributions of these vary in space and time. The systematic study of plant behaviour goes back to Darwin's book The power of movement in plants. Read More

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http://dx.doi.org/10.1098/rstb.2018.0371DOI Listing

Nitrate and nitrite contamination of vegetables in the Slovenian market.

Food Addit Contam Part B Surveill 2019 Apr 22:1-8. Epub 2019 Apr 22.

c Department of Agriculture and Nutrition , Institute of Agriculture and Tourism , Poreč , Croatia.

Overview of the quality of domestic and imported vegetables in Slovene market was investigated in terms of nitrate and nitrite contamination. In total, 145 samples (rocket, lamb's lettuce, silverbeet, spinach, lettuce, cabbage, radicchio, string beans, carrots, cucumber, potato, cauliflower, pepper and tomato) were bought in supermarkets and market places in Ljubljana in 2017. Values over 1000 mg NO kg were found in 30% of randomly selected samples. Read More

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http://dx.doi.org/10.1080/19393210.2019.1600589DOI Listing

Trait structure and redundancy determine sensitivity to disturbance in marine fish communities.

Glob Chang Biol 2019 Apr 21. Epub 2019 Apr 21.

MARBEC, Université de Montpellier, CNRS, IFREMER, IRD, 34095, Montpellier Cedex, France.

'Functional' diversity is believed to influence ecosystem dynamics through links between organismal traits and ecosystem processes. Theory predicts that key traits and high trait redundancy - large species richness and abundance supporting the same traits - can buffer communities against environmental disturbances. While experiments and data from simple ecological systems lend support, large-scale evidence from diverse, natural systems under major disturbance is lacking. Read More

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https://onlinelibrary.wiley.com/doi/abs/10.1111/gcb.14662
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http://dx.doi.org/10.1111/gcb.14662DOI Listing
April 2019
4 Reads

Bedrock nitrogen weathering stimulates biological nitrogen fixation.

Ecology 2019 Apr 21:e02741. Epub 2019 Apr 21.

Dept. of Land, Air, and Water Resources, University of California, Davis, CA, USA.

Global ecosystem models suggest that bedrock nitrogen (N) weathering contributes 10-20% of total N inputs to the natural terrestrial biosphere and >38% of ecosystem N supplies in temperate forests specifically. Yet, the role of rock N weathering in shaping ecological processes and biogeochemical fluxes is largely unknown. Here, we show that temperate forest ecosystems underlain by N-rich bedrock exhibit higher free-living N fixation rates than similar forests residing on N-poor parent materials, across sites experiencing a range of climate and tectonic regimes. Read More

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http://dx.doi.org/10.1002/ecy.2741DOI Listing

Identification and sequencing of the gene encoding DNA methyltransferase 3 (DNMT3) from sea cucumber, Apostichopus japonicus.

Mol Biol Rep 2019 Apr 20. Epub 2019 Apr 20.

School of Biological Sciences and Technology, Chonnam National University, Gwangju, 61186, Republic of Korea.

The sea cucumber Apostichopus japonicus is well known as a traditional tonic food and as a commercially important cultured aquatic species. This species produces saponins, and has a high potential to cope with environmental stress, such as aestivation, organ regeneration, and wound healing. Recently, several studies have shown that cellular reprogramming and the physiological responses of the sea cucumber to environmental changes, including aestivation, are potentially mediated by epigenetic DNA methylation. Read More

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http://dx.doi.org/10.1007/s11033-019-04821-8DOI Listing

Preferential hand use by captive chimpanzees (Pan troglodytes) in manual and tool digging.

Primates 2019 Apr 20. Epub 2019 Apr 20.

IFM Biology, Linköping University, 581 83, Linköping, Sweden.

Digging for underground storage organs of plants has been reported in various populations of wild chimpanzees (Pan troglodytes). However, it is unknown so far whether chimpanzees display lateral biases in manual digging as direct observations of this behavior are still lacking. It was therefore the aim of the present study to assess, for the first time, hand preferences for digging in a group of nine captive chimpanzees. Read More

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http://dx.doi.org/10.1007/s10329-019-00727-yDOI Listing
April 2019
1 Read

Identifying key landscape pattern indices influencing the ecological security of inland river basin: The middle and lower reaches of Shule River Basin as an example.

Sci Total Environ 2019 Apr 11;674:424-438. Epub 2019 Apr 11.

College of Geography and Environmental Science, Northwest Normal University, Lanzhou 730070, China.

Landscape pattern evolution leads to changes of landscape spatial structure, which are intuitively reflected in the changes of ecosystem structure and composition and finally affect ecological security. In this paper, we assessed the spatiotemporal variation of the ecological security and landscape pattern of the middle and lower reaches of Shule River Basin in 1987-2015. Further, we analyzed the correlation between the ecological security and landscape pattern of the study region and correlation coefficients were calculated. Read More

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http://dx.doi.org/10.1016/j.scitotenv.2019.04.107DOI Listing

Systemically modeling the relationship between climate change and wheat aphid abundance.

Sci Total Environ 2019 Apr 13;674:392-400. Epub 2019 Apr 13.

School of Computer Science and Technology, Xidian University, Xi'an 710071, China; Institute of Software Engineering, Xidian University, Xi'an 710071, China. Electronic address:

Climate change influences all living beings. Wheat aphids deplete the nutritional value of wheat and affect the production of wheat in changing climate. In this study, we attempt to explain the ecological mechanisms of how climate change affects wheat aphids by simulating the relationship between climate and the abundance of wheat aphids, which will not only aid in improving wheat aphid forecasting and the effectiveness of prevention and treatment, but also help mitigate food crises. Read More

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http://dx.doi.org/10.1016/j.scitotenv.2019.04.143DOI Listing

Purification of harvested rainwater using slow sand filters with low-cost materials: Bacterial community structure and purifying effect.

Sci Total Environ 2019 Apr 1;674:344-354. Epub 2019 Apr 1.

Institute of Hydrogeology and Environmental Geology, Chinese Academy of Geological Sciences, China.

Slow sand filters (SSFs) have been shown to effectively improve water quality. The aim of the present study was to obtain low-cost materials (LCMs) as filter mediums (FMs) to efficiently purify harvested rainwater and to document the relationship between bacterial community structure and water purification. The red clay was mixed with crushed limestone and crushed brick, respectively. Read More

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http://dx.doi.org/10.1016/j.scitotenv.2019.03.474DOI Listing
April 2019
1 Read

Mental wellbeing, air pollution and the ecological state.

Health Place 2019 Apr 18;57:82-91. Epub 2019 Apr 18.

Department of Sociology, Ghent University, Belgium.

The ecological State puts environmental considerations at the centre of its actions. To explores its role in the association between air pollution and mental wellbeing, this work employs a hierarchical three-level analysis on the third wave (2011-2012) of the European Quality of Life Survey (N = 25007, N = 216, N = 20). It uses a classification of Environmental Governance Regimes, subjective and objective indicators of air pollution, and the WHO-5 index of mental wellbeing. Read More

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https://linkinghub.elsevier.com/retrieve/pii/S13538292183110
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http://dx.doi.org/10.1016/j.healthplace.2019.03.003DOI Listing
April 2019
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A novel telecoupling framework to assess social relations across spatial scales for ecosystem services research.

J Environ Manage 2019 Apr 18;241:251-263. Epub 2019 Apr 18.

Agricultural Research for Development (CIRAD), University of Montpellier, Montpellier, France; Centre for International Forestry Research (CIFOR), Lima, Peru.

Access to ecosystem services and influence on their management are structured by social relations among actors, which often occur across spatial scales. Such cross-scale social relations can be analysed through a telecoupling framework as decisions taken at local scales are often shaped by actors at larger scales. Analyzing these cross-scale relations is critical to create effective and equitable strategies to manage ecosystem services. Read More

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http://dx.doi.org/10.1016/j.jenvman.2019.04.029DOI Listing

Influence of the welan gum biopolymer concentration on the rheological properties, droplet size distribution and physical stability of thyme oil/W emulsions.

Int J Biol Macromol 2019 Apr 18. Epub 2019 Apr 18.

Departamento de Ingeniería Química, Facultad de Química, Universidad de Sevilla, C/ Profesor García González, s/n, 41012 Sevilla, Spain. Electronic address:

The objective of this work is to obtain a stable and natural antimicrobial delivery system. Thus, the effect of the addition of a natural polysaccharide such as welan gum on the linear viscoelastic properties, flow behaviour, droplet size distribution and physical stability of thyme oil/W emulsions formulated with a wheat-derived surfactant was studied. All emulsions obtained show submicron diameters regardless of the concentration of welan. Read More

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http://dx.doi.org/10.1016/j.ijbiomac.2019.04.137DOI Listing

Graphene oxide induces cardiovascular defects in developing zebrafish (Danio rerio) embryo model: In-vivo toxicity assessment.

Sci Total Environ 2019 Apr 8;673:810-820. Epub 2019 Apr 8.

Center for Biofluid and Biomimic Research, Pohang University of Science and Technology (POSTECH), Pohang 37673, South Korea; Department of Mechanical Engineering, Pohang University of Science and Technology (POSTECH), Pohang 37673, South Korea. Electronic address:

Graphene oxide (GO) has wide engineering applications in various areas, including electronics, energy storage, pharmaceuticals, nanomedicine, environmental remediation and biotechnology, because of its unique physico-chemical properties. In the present study, the risk-related information of GO was evaluated to examine the potential ecological and health risks of developmental toxicity. Although the overall developmental toxicity of GO has been well characterized in zebrafish, however, its release effect at a certain concentration of living organisms with specific cardiovascular defects remains largely elusive. Read More

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https://linkinghub.elsevier.com/retrieve/pii/S00489697193160
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http://dx.doi.org/10.1016/j.scitotenv.2019.04.082DOI Listing
April 2019
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More than sulfidation: Roles of biogenic sulfide in attenuating the impacts of CuO nanoparticle on antibiotic resistance genes during sludge anaerobic digestion.

Water Res 2019 Apr 12;158:1-10. Epub 2019 Apr 12.

State Key Laboratory of Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Tongji University, 1239 Siping Road, Shanghai, 200092, China; Shanghai Institute of Pollution Control and Ecological Security, Shanghai, 200092, China. Electronic address:

Biogenic sulfide (BS) in anaerobic digesters was previously suggested to mitigate the potential impacts of metallic nanoparticles (M-NPs) on antibiotic resistance genes (ARGs) propagation by sulfidation of the M-NPs. In this study, a new role of BS in regulating ARGs responses to M-NPs is reported. It was observed that CuO NPs at environmentally relevant level had no significant effects on the spread of ARGs. Read More

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http://dx.doi.org/10.1016/j.watres.2019.04.019DOI Listing

Comparison of Fenton and bismuth ferrite Fenton-like pretreatments of sugarcane bagasse to enhance enzymatic saccharification.

Bioresour Technol 2019 Apr 13;285:121343. Epub 2019 Apr 13.

Laboratory of Ecological and Environmental Engineering, College of Resources and Environment, Huazhong Agricultural University, Wuhan 430070, China; Collaborative Innovation Center for Sustainable Pig Production, Hubei Province, China.

This study compared enzymatic saccharification of sugarcane bagasse (SCB) after application of two different pretreatment methods, Fenton pretreatment (FP) and BiFeO Fenton-like pretreatment (BFP). The composition, morphology and structural properties of SCB with different pretreatments were analyzed. Results showed that, after BFP, the yield of reducing sugar of SCB under enzymatic saccharification for 72 h was 25. Read More

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http://dx.doi.org/10.1016/j.biortech.2019.121343DOI Listing

Organochlorine pesticides in the soils from Benevento provincial territory, southern Italy: Spatial distribution, air-soil exchange, and implications for environmental health.

Sci Total Environ 2019 Apr 4;674:159-170. Epub 2019 Apr 4.

Pegaso University, Naples 80132, Italy; Norwest Italia Srl, Naples 80138, Italy.

This study comprehensively interprets the contamination status of organochlorine pesticides (OCPs) in the soils from Benevento provincial territory, southern Italy, and its implications for environmental health by means of a systematic grid sampling method and geostatistics. The total concentrations of OCPs in the soils ranged from 0.058 to 16. Read More

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http://dx.doi.org/10.1016/j.scitotenv.2019.04.029DOI Listing

Chemical characterisation of PM emitted from motor vehicles powered by diesel, gasoline, natural gas and methanol fuel.

Sci Total Environ 2019 Mar 30;674:128-139. Epub 2019 Mar 30.

School of Automobile, Chang'an University, Xi'an 710064, China.

Vehicle emissions are affected by factors such as vehicle type, fuel quality, and engine repair. Therefore, mobile source profiles should be established based on a characteristic fleet for a specific region. This study characterised the chemical composition of PM emitted from motor vehicles that are commonly used in Xi'an through dynamometer tests. Read More

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http://dx.doi.org/10.1016/j.scitotenv.2019.03.410DOI Listing

Oxidative stress and genotoxic effects in earthworms induced by five imidazolium bromide ionic liquids with different alkyl chains.

Chemosphere 2019 Apr 13;227:570-579. Epub 2019 Apr 13.

College of Resources and Environment, Shandong Agricultural University, Key Laboratory of Agricultural Environment in Universities of Shandong, National Engineering Laboratory for Efficient Utilization of Soil and Fertilizer Resources, 61 Daizong Road, Taian, 271018, China. Electronic address:

In this study, the acute and subchronic toxicity of 1-alkyl-3-methyl imidazole bromide ionic liquids (ILs) [Cmim]Br (n = 2, 4, 6, 10, 12) was evaluated utilizing earthworms (Eisenia fetida) as a basis for their impact on terrestrial ecosystems. The filter paper tests and artificial soil tests were conducted as acute toxicity tests to investigate the LC of ILs, while in subchronic toxicity tests, earthworms were exposed to ILs in artificial soil (5, 10, 20 and 40 mg kg) for 28 d. Reactive oxygen species (ROS), antioxidant enzymes, detoxifying enzymes and oxidative damage were measured to determine subchronic effects of ILs on E. Read More

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https://linkinghub.elsevier.com/retrieve/pii/S00456535193074
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http://dx.doi.org/10.1016/j.chemosphere.2019.04.091DOI Listing
April 2019
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Statistical optimization of glyphosate adsorption by biochar and activated carbon with response surface methodology.

Chemosphere 2019 Apr 11;227:533-540. Epub 2019 Apr 11.

Environmental Bio-innovations Group (EBiG), School of Civil and Environmental Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Singapore. Electronic address:

The introduction of glyphosate, found in herbicides, to waterbodies is of concern due to its toxicity and hence potential threat to public health and ecological systems. The present study has compared glyphosate removal from aqueous solution with activated carbon and biochar. Box-Behnken design, and percent contribution with Pareto analysis techniques were used in surface response and efficiency calculations modelled the process conditions and their effects. Read More

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http://dx.doi.org/10.1016/j.chemosphere.2019.04.078DOI Listing

Specific metabolism related to sulfonamide tolerance and uptake in wetland plants.

Chemosphere 2019 Apr 10;227:496-504. Epub 2019 Apr 10.

Research Center of Hydrobiology, Jinan University, Guangzhou, 510632, PR China; Research Centre of Tropic and Subtropic Aquatic Ecological Engineering, Ministry of Education, Guangzhou, 510632, PR China.

Wetland plants are proven to perform well in water treatment. However, the phytoremediation capability of wetland plants for antibiotics, especially the uptake and metabolism involved in vivo, is poorly understood. In this study, we investigated the removal, uptake, and specific metabolism by Canna indica and Iris pseudacorus of five sulfonamides (SAs) using hydroponic experiments for seven days. Read More

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http://dx.doi.org/10.1016/j.chemosphere.2019.04.069DOI Listing

The evolutionarily conserved indolergic receptors of the non-hematophagous elephant mosquito Toxorhynchites amboinensis.

Insect Biochem Mol Biol 2019 Apr 17. Epub 2019 Apr 17.

Department of Entomology, The Hebrew University of Jerusalem, Rehovot, 76100, Israel. Electronic address:

The conservation of the mosquito indolergic receptors across the Culicinae and Anophelinae mosquito lineages, which spans 200 million years of evolution, is a testament to the central role of indolic compounds in the biology of these insects. Indole and skatole have been associated with the detection of oviposition sites and animal hosts. To evaluate the potential ecological role of these two compounds, we have used a pharmacological approach to characterize homologs of the indolergic receptors Or2 and Or10 in the non-hematophagous elephant mosquito Toxorhynchites amboinensis. Read More

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http://dx.doi.org/10.1016/j.ibmb.2019.04.015DOI Listing

Phytoplankton growth and stoichiometric responses to warming, nutrient addition and grazing depend on lake productivity and cell size.

Glob Chang Biol 2019 Apr 20. Epub 2019 Apr 20.

Department of Aquatic Ecology, Netherlands Institute of Ecology (NIOO-KNAW), Droevendaalsesteeg 10, 6708 PB, Wageningen, Netherlands.

Global change involves shifts in multiple environmental factors that act in concert to shape ecological systems in ways that depend on local biotic and abiotic conditions. Little is known about the effects of combined global change stressors on phytoplankton communities, and particularly how these are mediated by distinct community properties such as productivity, grazing pressure and size distribution. Here, we tested for the effects of warming and eutrophication on phytoplankton net growth rate and C:N:P stoichiometry in two phytoplankton cell size fractions (<30μm and >30μm) in the presence and absence of grazing in microcosm experiments. Read More

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http://dx.doi.org/10.1111/gcb.14660DOI Listing