90 results match your criteria habitat-specialist species

Recent population differentiation in the habitat specialist Glossy Antshrike (Aves: Thamnophilidae) across Amazonian seasonally flooded forests.

Ecol Evol 2021 Sep 28;11(17):11826-11838. Epub 2021 Jul 28.

Department of Zoology Museu Paraense Emílio Goeldi Belém Brazil.

We assessed population structure and the spatio-temporal pattern of diversification in the Glossy Antshrike (Aves, Thamnophilidae) to understand the processes shaping the evolutionary history of Amazonian floodplains and address unresolved taxonomic controversies surrounding its species limits. By targeting ultraconserved elements (UCEs) from 32 specimens of . , we identified independent lineages and estimated their differentiation, divergence times, and migration rates. Read More

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September 2021

Snakes on an African plain: the radiation of and into open habitat (Serpentes: Colubridae).

PeerJ 2021 6;9:e11728. Epub 2021 Aug 6.

School of Animal, Plant and Environmental Sciences, University of the Witwatersrand, Johannesburg, Gauteng, South Africa.

Background: The African continent is comprised of several different biomes, although savanna is the most prevalent. The current heterogeneous landscape was formed through long-term vegetation shifts as a result of the global cooling trend since the Oligocene epoch. The overwhelming trend was a shift from primarily forest, to primarily savanna. Read More

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Habitat patches providing south-north connectivity are under-protected in a fragmented landscape.

Proc Biol Sci 2021 Aug 25;288(1957):20211010. Epub 2021 Aug 25.

Department of Evolution, Ecology, and Behaviour, University of Liverpool, Crown Street, Liverpool, Merseyside L69 7ZB, UK.

As species' ranges shift to track climate change, conservationists increasingly recognize the need to consider connectivity when designating protected areas (PAs). In fragmented landscapes, some habitat patches are more important than others in maintaining connectivity, and methods are needed for their identification. Here, using the Condatis methodology, we model range expansion through an adaptation of circuit theory. Read More

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Taxonomy, population status and ecology of Indian desert monitor lizard Mertens 1954 in the Thar desert of Rajasthan.

Saudi J Biol Sci 2021 Aug 27;28(8):4542-4552. Epub 2021 Apr 27.

University School of Environment Management, Guru Gobind Singh Indraprastha University, Sector 16-C, Dwarka, New Delhi 110078, India.

Among monitor lizards of the family Varanidae, Indian desert monitor lizard Mertens 1954 is one of the lesser-known species globally and due to lack of data on this species it is so far not evaluated by IUCN and excluded from the latest assessment of monitor lizards of Southeast Asia and Indo-Australian Archipelago. The present study was undertaken from January 2013 to June 2017 to fill this gap during which taxonomic evaluation along with an assessment of population and ecology of this species was carried out in the Thar desert of Rajasthan (TDR). The study brought into knowledge many morphological variations along with intraspecific variations of scale microstructure of this lizard. Read More

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Decline of parasitic and habitat-specialist species drives taxonomic, phylogenetic and functional homogenization of sub-alpine bumblebee communities.

Oecologia 2021 Jul 15;196(3):905-917. Epub 2021 Jun 15.

Department of Ecology, Swedish University of Agricultural Sciences, Box 7044, 75007, Uppsala, Sweden.

The ongoing biodiversity crisis is characterised not only by an elevated extinction rate but also can lead to an increasing similarity of species assemblages. This is an issue of major concern, as it can reduce ecosystem resilience and functionality. Changes in the composition of pollinator communities have mainly been described in intensive agricultural lowland areas. Read More

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The living heart: Climate gradients predict desert mountain endemism.

Ecol Evol 2021 May 15;11(9):4366-4378. Epub 2021 Mar 15.

Environmental Futures Research Institute and School of Environment and Science Griffith University Nathan Qld Australia.

Mountain regions are centers of biodiversity endemism at a global scale but the role of arid-zone mountain ranges in shaping biodiversity patterns is poorly understood. Focusing on three guilds of taxa from a desert upland refugium in Australia, we sought to determine: (a) the relative extent to which climate, terrain or geological substrate predict endemism, and (b) whether patterns of endemism are complimentary across broad taxonomic guilds. We mapped regional endemism for plants, land snails, and vertebrates using combined Species Distribution Models (SDMs) for all endemic taxa ( = 82). Read More

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Targeted elimination of species-rich larval habitats can rapidly collapse arbovirus vector mosquito populations at hotel compounds in Zanzibar.

Med Vet Entomol 2021 May 10. Epub 2021 May 10.

Department of Allied Health Sciences, School of Health and Medical Sciences, The State University of Zanzibar, Zanzibar, Tanzania.

Understanding the dynamics of larval habitat utilization by mosquito communities is crucial for the design of efficient environmental control strategies. The authors investigated the structure of mosquito communities found at hotel compounds in Zanzibar, networks of mosquito interactions with larval habitats and robustness of mosquito communities to elimination of larval habitats. A total of 23 698 mosquitoes comprising 26 species in six genera were found. Read More

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Comparative analysis of spatial genetic structures in sympatric populations of two riparian plants, Saxifraga acerifolia and Saxifraga fortunei.

Am J Bot 2021 04 21;108(4):680-693. Epub 2021 Apr 21.

Graduate School of Human and Environmental Studies, Kyoto University, Yoshida Nihonmatsu-cho, Sakyo-ku, Kyoto, Kyoto, 606-8501, Japan.

Premise: The genetic structure between plant populations is facilitated by the spatial population arrangement and limited dispersal of seed and pollen. Saxifraga acerifolia, a local endemic species in Japan, is a habitat specialist that is confined to waterfalls in riparian environments. Its sister species, Saxifraga fortunei, is a generalist that is widely distributed along riverbanks. Read More

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Gut microbiome composition predicts summer core range size in two divergent ungulates.

FEMS Microbiol Ecol 2021 04;97(5)

Department of Environmental and Life Sciences, Trent University, 2140 East Bank Drive, Peterborough, Ontario K9J 7B8, Canada.

The gut microbiome of animals vary by age, diet, and habitat, and directly influences an individual's health. Similarly, variation in home ranges is linked to feeding strategies and fitness. Ungulates (hooved mammals) exhibit species-specific microbiomes and habitat use patterns. Read More

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Species versus within-species niches: a multi-modelling approach to assess range size of a spring-dwelling amphibian.

Sci Rep 2021 01 12;11(1):597. Epub 2021 Jan 12.

CIBIO/InBIO, Centro de Investigação em Biodiversidade e Recursos Genéticos da Universidade Do Porto, Instituto de Ciências Agrárias de Vairão R. Padre Armando Quintas, 4485-661, Vairão, Portugal.

Species Distribution Models (SDMs) can be used to estimate potential geographic ranges and derive indices to assess species conservation status. However, habitat-specialist species require fine-scale range estimates that reflect resource dependency. Furthermore, local adaptation of intraspecific lineages to distinct environmental conditions across ranges have frequently been neglected in SDMs. Read More

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January 2021

Using fire to enhance rewilding when agricultural policies fail.

Sci Total Environ 2021 Feb 14;755(Pt 1):142897. Epub 2020 Oct 14.

InBIO/CIBIO - Centro de Investigação em Biodiversidade e Recursos Genéticos, Campus Agrário de Vairão, Rua Padre Armando Quintas, n° 7, 4485-661 Vairão, Portugal; Departamento de Zooloxía, Xenética e Antropoloxía Física, Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain. Electronic address:

Rewilding has been proposed as an opportunity for biodiversity conservation in abandoned landscapes. However, rewilding is challenged by the increasing fire risk associated with more flammable landscapes, and the loss of open-habitat specialist species. Contrastingly, supporting High Nature Value farmlands (HNVf) has been also highlighted as a valuable option, but the effective implementation of agricultural policies often fails leading to uncertain scenarios wherein the effects of wildfire management remain largely unexplored. Read More

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February 2021

Explicit integration of dispersal-related metrics improves predictions of SDM in predatory arthropods.

Sci Rep 2020 10 7;10(1):16668. Epub 2020 Oct 7.

UMR CNRS 6553 ECOBIO, Université de Rennes, Rennes, France.

Fishing spiders (Dolomedes spp.) make an interesting model to predict the impact of global changes because they are generalist, opportunistic predators, whose distribution is driven mostly by abiotic factors. Yet, the two European species are expected to react differently to forthcoming environmental changes, because of habitat specialization and initial range. Read More

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October 2020

Changing ecologies, shifting behaviours: Behavioural responses of a rainforest primate, the lion-tailed macaque Macaca silenus, to a matrix of anthropogenic habitats in southern India.

PLoS One 2020 23;15(9):e0238695. Epub 2020 Sep 23.

School of Natural and Engineering Sciences, National Institute of Advanced Studies, Indian Institute of Science Campus, Bangalore, India.

With the uncontrolled expansion of anthropogenic modifications of the environment, wildlife species are forced to interact with humans, often leading to conflict situations that have detrimental effects for both wildlife and humans. Such interactions are escalating globally, making it crucial for us to devise strategies for both, the management of conflict and the conservation of these often-threatened species. We studied a case of potentially detrimental human-wildlife interactions between an endemic, habitat-specialist primate, the lion-tailed macaque Macaca silenus and resident human communities that has developed in recent years in the Western Ghats mountains of southern India. Read More

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October 2020

Phylogeographic structure of the dunes sagebrush lizard, an endemic habitat specialist.

PLoS One 2020 16;15(9):e0238194. Epub 2020 Sep 16.

Department of Ecology and Conservation Biology, Biodiversity Research and Teaching Collections, Texas A&M University, College Station, Texas, United States of America.

Phylogeographic divergence and population genetic diversity within species reflect the impacts of habitat connectivity, demographics, and landscape level processes in both the recent and distant past. Characterizing patterns of differentiation across the geographic range of a species provides insight on the roles of organismal and environmental traits in evolutionary divergence and future population persistence. This is particularly true of habitat specialists where habitat availability and resource dependence may result in pronounced genetic structure as well as increased population vulnerability. Read More

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October 2020

Impact of habitat alteration on amphibian diversity and species composition in a lowland tropical rainforest in Northeastern Leyte, Philippines.

Sci Rep 2020 06 29;10(1):10547. Epub 2020 Jun 29.

Environmental Management Department, Visayas State University-Alangalang, Brgy. Binongto-an, 6517, Alangalang, Leyte, Philippines.

The impact of anthropogenic habitat alteration on amphibians was investigated, employing an investigative focus on leaf-litter and semi-aquatic species across different habitat alteration types. The habitat alteration types which include primary forest, selectively logged primary forest, secondary forest, abandoned farm areas and pasture (this represents a gradient of habitat alteration ranging from least altered to most altered, respectively) also encompass two habitat types: stream and terrestrial. Species assemblage was compared between habitat alteration types and habitat types, where a total 360 leaf-litter and semi-aquatic amphibians were observed (15 species, 6 families). Read More

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Transovarial Transmission of Bacteriome-Associated Symbionts in the Cicada (Hemiptera: Cicadidae).

Appl Environ Microbiol 2020 06 2;86(12). Epub 2020 Jun 2.

Key Laboratory of National Forestry and Grassland Administration for Control of Forest Biological Disasters in Western China, College of Forestry, Northwest A&F University, Yangling, Shaanxi, China

Although transovarial transmission of bacteriome-associated symbionts in hemipteran insects is extremely important for maintaining intimate host-symbiont associations, our knowledge of cellular mechanisms underlying the transmission process is quite limited. We investigated bacterial communities of salivary glands, bacteriomes, and digestive and reproductive organs and clarified the transovarial transmission of bacteriome-associated symbionts of the mountain-habitat specialist using integrated methods. The bacterial communities among different gut tissues and those of bacteriomes of males and females both show similarity, whereas differences are exhibited among bacterial communities in testes and ovaries. Read More

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Chromosomal Differentiation in Genetically Isolated Populations of the Marsh-Specialist (Mammalia: Soricidae).

Genes (Basel) 2020 03 2;11(3). Epub 2020 Mar 2.

Departament de Biologia Cel·lular, Fisiologia i Immunologia, Universitat Autònoma de Barcelona, Campus UAB, 08193 Cerdanyola del Vallès, Spain.

The genus represents a remarkable model for the study of chromosome evolution. This is the case of the lesser white-toothed shrew (), a representative of the Palearctic group. Although continuously distributed from Siberia to Central Europe, is a rare, habitat-specialist species in the southwesternmost limit of its distributional range, in the Gulf of Cádiz (Iberian Peninsula). Read More

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Small fish, large river: Surprisingly minimal genetic structure in a dispersal-limited, habitat specialist fish.

Ecol Evol 2020 Feb 6;10(4):2253-2268. Epub 2020 Feb 6.

Department of Biology Center of Excellence for Field Biology Austin Peay State University Clarksville TN USA.

Genetic connectivity is expected to be lower in species with limited dispersal ability and a high degree of habitat specialization (intrinsic factors). Also, gene flow is predicted to be limited by habitat conditions such as physical barriers and geographic distance (extrinsic factors). We investigated the effects of distance, intervening pools, and rapids on gene flow in a species, the Tuxedo Darter (), a habitat specialist that is presumed to be dispersal-limited. Read More

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February 2020

Classifying Hawaiian plant species along a habitat generalist-specialist continuum: Implications for species conservation under climate change.

PLoS One 2020 7;15(2):e0228573. Epub 2020 Feb 7.

School of Life Sciences, University of Hawai'i at Mānoa, Honolulu, Hawaii, United States of America.

Plant communities on tropical high islands, such as the Hawaiian Islands, are predicted to experience rapid climate change, resulting in novel climates. If increased temperature and/or drought exceed plant species' current tolerances, species that are unable to adapt or shift ranges risk extinction. By definition, habitat generalists have a wide niche breadth and thrive in a variety of habitats, whereas habitat specialists have a narrow niche breadth, and typically thrive under more specific climatic characteristics (e. Read More

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Forest-type specialization strongly predicts avian responses to tropical agriculture.

Proc Biol Sci 2019 10 23;286(1913):20191724. Epub 2019 Oct 23.

Ecology and Evolutionary Biology, Princeton University, Princeton, NJ, USA.

Species' traits influence how populations respond to land-use change. However, even in well-characterized groups such as birds, widely studied traits explain only a modest proportion of the variance in response across species. Here, we show that associations with particular forest types strongly predict the sensitivity of forest-dwelling Amazonian birds to agriculture. Read More

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October 2019

Seed dispersal by dispersing juvenile animals: a source of functional connectivity in fragmented landscapes.

Biol Lett 2019 07 10;15(7):20190264. Epub 2019 Jul 10.

1 Integrative Ecology Group, Estación Biológica de Doñana (EBD-CSIC) , Sevilla , Spain.

Juvenile animals generally disperse from their birthplace to their future breeding territories. In fragmented landscapes, habitat-specialist species must disperse through the anthropogenic matrix where remnant habitats are embedded. Here, we test the hypothesis that dispersing juvenile frugivores leave a footprint in the form of seed deposition through the matrix of fragmented landscapes. Read More

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Red panda fine-scale habitat selection along a Central Himalayan longitudinal gradient.

Ecol Evol 2019 May 1;9(9):5260-5269. Epub 2019 Apr 1.

Ministry of Forests and Environment, Government of Nepal Singha Durbar Kathmandu Nepal.

Red panda , an endangered habitat specialist, inhabits a narrow distribution range in bamboo abundance forests along mountain slopes in the Himalaya and Hengduan Mountains. However, their habitat use may be different in places with different longitudinal environmental gradients, climatic regimes, and microclimate. This study aimed to determine the habitat variables affecting red panda distribution across different longitudinal gradients through a multivariate analysis. Read More

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Species characteristics affect local extinctions.

Am J Bot 2019 04 8;106(4):547-559. Epub 2019 Apr 8.

Department of Plant Biology, Michigan State University, East Lansing, Michigan, 48824-6406, USA.

Premise Of The Study: Human activities threaten thousands of species with extinction. However, it remains difficult to predict extinction risk for many vulnerable species. Species traits, species characteristics such as rarity or habitat use, and phylogenetic patterns are associated with responses to anthropogenic environmental change and may help predict likelihood of extinction. Read More

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The role of urban forest patches in maintaining isopod diversity (Oniscidea).

Zookeys 2018 3(801):371-388. Epub 2018 Dec 3.

Department of Ecology, Institute for Biology, University of Veterinary Medicine Budapest, H-1077 Budapest, Rottenbiller str. 50, Hungary University of Veterinary Medicine Budapest Budapest Hungary.

Compositional changes in natural communities associated with anthropogenic influence often lead to localised extinctions and biodiversity loss. Soil invertebrates are also threatened by urbanisation due to habitat fragmentation, vegetation changes and management, soil alteration, degradation, and disappearing shelter sites. The aim was to assess terrestrial isopod (Oniscidea) assemblages in differently degraded urban forest patches of a metropolitan area (Budapest, Hungary). Read More

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December 2018

Avian preference for close proximity to human habitation and its ecological consequences.

Curr Zool 2018 Oct 28;64(5):623-630. Epub 2017 Nov 28.

Department of Biogeography and Global Change (BGC-MNCN-CSIC), National Museum of Natural Sciences, CSIC, c/Serrano 155bis, Madrid, E-28006, Spain.

Human proximity often have negative consequences for wildlife. However, animals may also benefit from human proximity in terms of availability of resources and protection against predators and parasites. We recorded the distance between all birds detected during the breeding season along 18 5-km transects and the nearest inhabited house in three areas of 50 km in Spain, France, and Denmark. Read More

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October 2018

Differential post-fledging habitat use of Nearctic-Neotropical migratory birds within an urbanized landscape.

Mov Ecol 2018 20;6:17. Epub 2018 Aug 20.

1Department of Entomology and Wildlife Ecology, University of Delaware, Rm. 250 Townsend Hall, 531 South College Avenue, Newark, DE 19716 USA.

Background: Persistent declines in migratory songbird populations continue to motivate research exploring contributing factors to inform conservation efforts. Nearctic-Neotropical migratory species' population declines have been linked to habitat loss and reductions in habitat quality due to increasing urbanization in areas used throughout the annual cycle. Despite an increase in the number of studies on post-fledging ecology, generally characterized by the period between fledging and dispersal from natal areas or migration, contextual research linking post-fledging survival and habitat use to anthropogenic factors remains limited. Read More

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Phenotypic plasticity in specialists: How long-spined larval Sympetrum depressiusculum (Odonata: Libellulidae) responds to combined predator cues.

PLoS One 2018 8;13(8):e0201406. Epub 2018 Aug 8.

Institute of Environmental Technologies, Faculty of Science, University of Ostrava, Ostrava, Czech Republic.

Phenotypic plasticity is a common defensive strategy in species experiencing variable predation risk, such as habitat generalists. Larvae of generalist dragonflies can elongate their abdominal spines in environments with fish, but long spines render larvae susceptible to invertebrate predators. Long-spined specialists adapted to fish-heavy habitats are not expected to have phenotypic plasticity in this defence trait, but no empirical studies have been undertaken. Read More

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January 2019

Influence of habitat suitability and sex-related detectability on density and population size estimates of habitat-specialist warblers.

PLoS One 2018 30;13(7):e0201482. Epub 2018 Jul 30.

Department of Evolutionary Ecology, National Museum of Natural Sciences, CSIC, Madrid, Spain.

Knowledge about the population size and trends of common bird species is crucial for setting conservation priorities and management actions. Multi-species large-scale monitoring schemes have often provided such estimates relying on extrapolation of relative abundances in particular habitats to large-scale areas. Here we show an alternative to inference-rich predictive models, proposing methods to deal with caveats of population size estimations in habitat-specialist species, reed warblers (Acrocephalus scirpaceus and Acrocephalus arundinaceus). Read More

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January 2019

Modelling landscape constraints on farmland bird species range shifts under climate change.

Sci Total Environ 2018 Jun 12;625:1596-1605. Epub 2018 Jan 12.

CEF - Centro de Estudos Florestais, Instituto Superior de Agronomia, Universidade de Lisboa, Tapada da Ajuda, 1349-017 Lisboa, Portugal.

Several studies estimating the effects of global environmental change on biodiversity are focused on climate change. Yet, non-climatic factors such as changes in land cover can also be of paramount importance. This may be particularly important for habitat specialists associated with human-dominated landscapes, where land cover and climate changes may be largely decoupled. Read More

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Habitat specialist birds disperse farther and are more migratory than habitat generalist birds.

Ecology 2018 09 27;99(9):2058-2066. Epub 2018 Jul 27.

Geomatics and Landscape Ecology Laboratory (GLEL), Carleton University, 1125 Colonel By Drive, Ottawa, Ontario, K1S 5B6, Canada.

Some theories predict habitat specialists should be less dispersive and migratory than generalists, while other theories predict the opposite. We evaluated the cross-species relationship between the degree of habitat specialization and dispersal and migration status in 101 bird species breeding in North America and the United Kingdom, using empirical estimates of the degree of habitat specialization from breeding bird surveys and mean dispersal distance estimates from large-scale mark-recapture studies. We found that habitat specialists dispersed farther than habitat generalists, and full migrants had more specialized habitat than partial migrants or resident species. Read More

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September 2018