282 results match your criteria non-marine

Global patterns and rates of habitat transitions across the eukaryotic tree of life.

Nat Ecol Evol 2022 Aug 4. Epub 2022 Aug 4.

Department of Organismal Biology (Systematic Biology), Uppsala University, Uppsala, Sweden.

The successful colonization of new habitats has played a fundamental role during the evolution of life. Salinity is one of the strongest barriers for organisms to cross, which has resulted in the evolution of distinct marine and non-marine (including both freshwater and soil) communities. Although microbes represent by far the vast majority of eukaryote diversity, the role of the salt barrier in shaping the diversity across the eukaryotic tree is poorly known. Read More

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Chitin and Chitosan: Prospective Biomedical Applications in Drug Delivery, Cancer Treatment, and Wound Healing.

Mar Drugs 2022 Jul 17;20(7). Epub 2022 Jul 17.

Centre for Climate Change Research, University of Toronto, ONRamp at UTE, Toronto, ON M5G 1L5, Canada.

Chitin and its derivative chitosan are highly abundant polymers in nature, appearing in both the shells and exoskeletons of various marine and non-marine species. Since they possess favorable properties, such as biocompatibility, biodegradability, non-toxicity, and non-immunogenicity, they have gained recent attention due to their enormous potential biomedical applications. The polycationic surface of chitosan enables it to form hydrogenic and ionic bonds with drug molecules, which is one of its most useful properties. Read More

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Projected climate change impacts on the phylogenetic diversity of the world's terrestrial birds: more than species numbers.

Proc Biol Sci 2022 07 20;289(1979):20212184. Epub 2022 Jul 20.

Senckenberg Biodiversity and Climate Research Centre, 60325 Frankfurt, Germany.

Ongoing climate change is a major threat to biodiversity. As abiotic tolerances and dispersal abilities vary, species-specific responses have the potential to further amplify or ameliorate the ensuing impacts on species assemblages. Here, we investigate the effects of climate change on species distributions across non-marine birds, quantifying its projected impact on species richness (SR) as well as on different aspects of phylogenetic diversity globally. Read More

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Marine turtles are only minimally sexually size dimorphic, a pattern that is distinct from most nonmarine aquatic turtles.

Ecol Evol 2022 Jul 2;12(6):e8963. Epub 2022 Jun 2.

Marine Biology Interdisciplinary Program Texas A&M University College Station Texas USA.

Turtles have been prominent subjects of sexual size dimorphism (SSD) analyses due to their compact taxonomy, mating systems, and habitat diversity. In prior studies, marine turtles were grouped with fully aquatic non-marine turtles (NMATs). This is interesting because it is well-established that the marine environment imposes a distinct selective milieu on body form of vagile vertebrates, driven by convergent adaptations for energy-efficient propulsion and drag reduction. Read More

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Neotropical ostracode oxygen and carbon isotope signatures: implications for calcification conditions.

Biogeochemistry 2022 29;159(1):103-138. Epub 2022 Mar 29.

NAWI Graz Geocenter, Institute of Earth Sciences, University of Graz, Heinrichstraße 26, 8010 Graz, Austria.

Calcitic valves of non-marine ostracodes are important geochemical archives. Investigations of the relationship between the ranges of oxygen and carbon isotope values of modern ostracode populations and their host water provide important information on local or regional conditions and influences. Here we present the first δO and δC of the freshwater ostracode species along with the isotopic composition of the waters in which the ostracodes calcified, δD, δO, δC values-covering a large geographical range (Florida to Brazil). Read More

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Market surveys and social media provide confirmation of the endangered giant freshwater whipray Urogymnus polylepis in Myanmar.

J Fish Biol 2022 Jul 6;101(1):302-307. Epub 2022 May 6.

CENTRE for Sustainable Tropical Fisheries and Aquaculture, College of Science and Engineering, James Cook University, Townsville, Queensland, Australia.

The giant freshwater whipray Urogymnus polylepis is a threatened species that is vulnerable to riverine and coastal marine pressures. Despite its threatened status, the range of U. polylepis is still being determined. Read More

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Marine Vertebrates Impact the Bacterial Community Composition and Food Webs of Antarctic Microbial Mats.

Front Microbiol 2022 8;13:841175. Epub 2022 Apr 8.

Department of Biology, Universidad Autónoma de Madrid, Madrid, Spain.

The biological activity of marine vertebrates represents an input of nutrients for Antarctic terrestrial biota, with relevant consequences for the entire ecosystem. Even though microbial mats assemble most of the biological diversity of the non-marine Antarctica, the effects of the local macrofauna on these microecosystems remain understudied. Using 16S rRNA gene sequencing, C and N stable isotopes, and by characterizing the P and N-derived nutrient levels, we evaluated the effects of penguins and other marine vertebrates on four microbial mats located along the Antarctic Peninsula. Read More

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Where the Little Ones Play the Main Role-Picophytoplankton Predominance in the Soda and Hypersaline Lakes of the Carpathian Basin.

Microorganisms 2022 Apr 14;10(4). Epub 2022 Apr 14.

Balaton Limnological Research Institute, Klebelsberg Kuno Str. 3, P.O. Box 35, H-8237 Tihany, Hungary.

The extreme environmental conditions of the diverse saline inland waters (soda lakes and pans, hypersaline lakes and ponds) of the Carpathian Basin are an advantage for picophytoplankton. The abundance of picophytoplankton in these waters can be up to several orders of magnitude higher than that in freshwater shallow lakes, but differences are also found within different saline water types: higher picophytoplankton abundances were observed in hypersaline lakes compared to humic soda lakes, and their highest numbers were detected in turbid soda lakes. Moreover, their contribution to phytoplankton biomass is higher than that in shallow freshwater lakes with similar trophic states. Read More

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Non-marine Ostracoda (Crustacea) of the Early Cretaceous Pre-Salt sediments of Brazil: An illustrated catalogue of the type specimens of Wicher, Krmmelbein, Krmmelbein amp; Weber, and Bate.

Zootaxa 2022 Feb 9;5098(1):1-84. Epub 2022 Feb 9.

Senckenberg Forschungsinstitut Frankfurt, Senckenberganlage 25, D-60325 Frankfurt-am-Main, Germany..

Type material of 10 genera, one subgenus, 110 species and 28 subspecies described by Wicher (1959), Krmmelbein (1961, 1962, 1963, 1964a,b, 1965a,b), Krmmelbein Weber (1971) and Bate (1972, 1994) are re-illustrated using optical digital technology in order to provide a standard reference for future systematic work and its biostratigraphical and palaeoenvironmental application. The genera are: Brasacypris, Coriacina, Hourcqia, Ilhasina, Looneyellopsis, Pattersoncypris, Petrobrasia, Reconcavona, Salvadoriella, and Tucanocypris, and subgenus Cypridea (Sebastianites). Read More

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February 2022

Annotated zoogeography of non-marine Tardigrada. Part V: Australasia.

Zootaxa 2022 Mar 8;5107(1):1-119. Epub 2022 Mar 8.

British Antarctic Survey, Madingley Road, Cambridge, CB3 0ET, UK..

This paper is the fifth monograph of the series that describes the global records of limno-terrestrial water bears (Tardigrada). Here, we provide a comprehensive list of non-marine tardigrades recorded from Australasia, providing an updated and revised taxonomy accompanied by geographic co-ordinates, habitat, and biogeographic comments. It is hoped this work will serve as a reference point and background for further zoogeographical and taxonomical studies. Read More

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Can fractal dimensions objectivize gastropod shell morphometrics? A case study from Lake Lugu (SW China).

Ecol Evol 2022 Feb 1;12(3):e8622. Epub 2022 Mar 1.

Institute of Geological Sciences Freie Universität Berlin Berlin Germany.

Morphometrics are fundamental for the analysis of size and shape in fossils, particularly because soft parts or DNA are rarely preserved and hard parts such as shells are commonly the only source of information. Geometric morphometrics, that is, landmark analysis, is well established for the description of shape but it exhibits a couple of shortcomings resulting from subjective choices during landmarking (number and position of landmarks) and from difficulties in resolving shape at the level of micro-sculpture.With the aid of high-resolution 3D scanning technology and analyses of fractal dimensions, we test whether such shortcomings of linear and landmark morphometrics can be overcome. Read More

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February 2022

A multi-proxy assessment of the impact of environmental instability on Late Holocene (4500-3800 BP) Native American villages of the Georgia coast.

PLoS One 2022 2;17(3):e0258979. Epub 2022 Mar 2.

Department of Anthropology, Laboratory of Archaeology, University of Georgia, Athens, Georgia, United States of America.

Circular shell rings along the South Atlantic Coast of North America are the remnants of some of the earliest villages that emerged during the Late Archaic (5000-3000 BP). Many of these villages, however, were abandoned during the Terminal Late Archaic (ca 3800-3000 BP). We combine Bayesian chronological modeling with mollusk shell geochemistry and oyster paleobiology to understand the nature and timing of environmental change associated with the emergence and abandonment of circular shell ring villages on Sapelo Island, Georgia. Read More

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Characterization of the Complete Mitochondrial Genome of the Bromeliad Crab (Rathbun, 1896) (Crustacea: Decapoda: Brachyura: Sesarmidae).

Genes (Basel) 2022 02 4;13(2). Epub 2022 Feb 4.

Department of Biological Sciences, Clemson University, Clemson, SC 29634, USA.

is a non-marine crab endemic to Jamaica that dwells in rainforest bromeliads and exhibits elaborate active parental care behavior. Current genomic resources on are rare, limiting the understanding of its adaptation to terrestrial life in species that evolved from marine ancestors. This study reports the complete mitochondrial genome of assembled using Sanger sequencing. Read More

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February 2022

Paleoenvironment of the Cerro Negro Formation (Aptian, Early Cretaceous) of Snow Island, Antarctic Peninsula.

An Acad Bras Cienc 2022 18;94(suppl 1):e20201944. Epub 2022 Feb 18.

Universidade Federal do Rio de Janeiro, Laboratório de Paleobiologia e Paleogeografia Antártica, Museu Nacional, Quinta da Boa Vista s/n, 29040-040 Rio de Janeiro, RJ, Brazil.

A study of macro and microfacies, palynoflora and palynofacies of the non-marine Cerro Negro Formation at President Head Peninsula, Snow Island, northwest of the Antarctic Peninsula, was developed. Two assemblages were recognized: Palynofacies assemblage 1 (P1) at the base of the section with a dominance of fern spores and conifer pollen grains, and facies association consisting of a clastic layer, with the predominance of mudstones; and Palynofacies assemblage 2 (P2) at the top of the section, with remarkable abundance of AOM/Pseudoamorphous particles, associated with facies that includes tuffs. The complete section shows in some levels the presence of freshwater algae and translucent phytoclasts. Read More

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February 2022

The Sixth Mass Extinction: fact, fiction or speculation?

Biol Rev Camb Philos Soc 2022 04 10;97(2):640-663. Epub 2022 Jan 10.

UMS 2006 Patrinat (OFB, CNRS, MNHN), Centre d'Écologie et des Sciences de la Conservation (UMR 7204), Muséum National d'Histoire Naturelle, 43 rue Buffon CP 135, 75005 Paris, France.

There have been five Mass Extinction events in the history of Earth's biodiversity, all caused by dramatic but natural phenomena. It has been claimed that the Sixth Mass Extinction may be underway, this time caused entirely by humans. Although considerable evidence indicates that there is a biodiversity crisis of increasing extinctions and plummeting abundances, some do not accept that this amounts to a Sixth Mass Extinction. Read More

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Ostracods had colonized estuaries by the late Silurian.

Biol Lett 2021 12 1;17(12):20210403. Epub 2021 Dec 1.

School of Geography, Geology and the Environment, University of Leicester, Leicester LE1 7RH, UK.

The fossil record of terrestrialization documents notable shifts in the environmental and physiological tolerances of many animal and plant groups. However, for certain significant components of modern freshwater and terrestrial environments, the transition out of marine settings remains largely unconstrained. Ostracod crustaceans occupy an exceptional range of modern aquatic environments and are invaluable palaeoenvironmental indicators in the fossil record. Read More

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December 2021

Late Ediacaran life on land: desiccated microbial mats and large biofilm streamers.

Proc Biol Sci 2021 11 3;288(1962):20211875. Epub 2021 Nov 3.

School of Geosciences, University of Aberdeen, King's College, Aberdeen AB24 3UE, UK.

The Ediacaran period witnessed transformational change across the Earth-life system, but life on land during this interval is poorly understood. Non-marine/transitional Ediacaran sediments preserve a variety of probable microbially induced sedimentary structures and fossil matgrounds, and the ecology, biogeochemistry and sedimentological impacts of the organisms responsible are now ripe for investigation. Here, we report well-preserved fossils from emergent siliciclastic depositional environments in the Ediacaran of Newfoundland, Canada. Read More

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November 2021

Immature Insect Assemblages from the Early Cretaceous (Purbeck/Wealden) of Southern England.

Insects 2021 Oct 17;12(10). Epub 2021 Oct 17.

State Key Laboratory of Palaeobiology and Stratigraphy, Nanjing Institute of Geology and Palaeontology and Center for Excellence in Life and Paleoenvironment, Chinese Academy of Sciences, Nanjing 210008, China.

The record of immature insects from the non-marine Purbeck and Wealden groups (Lower Cretaceous) of southern England is reviewed and expanded. Fossils of adult terrestrial insects are locally common, but terrestrial immature remains are restricted to transported hemipterans, most of which are sessile nymphs or puparia resembling those of extant whiteflies (Aleyrodidae). Remains of immature aquatic insects are more diverse and comprise the extant orders Plecoptera, Ephemeroptera, Odonata, Trichoptera, Hemiptera and Diptera. Read More

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October 2021

Morphological diversity and discrimination tools of the non-marine ostracod Cypridopsis silvestrii across temporal and spatial scales from Patagonia.

An Acad Bras Cienc 2021 4;93(suppl 2):e20200635. Epub 2021 Aug 4.

CONICET-Universidad Nacional del Comahue INIBIOMA, Quintral 1250, Bariloche, CP 8400, Río Negro, Argentina.

Geometric morphometric methods are powerful tools to discriminate between closely related ostracods taxa as well as to study the relationship between their morphological variations, taxonomy and paleoecology. In this study, valve outline analysis allows the discrimination between the non-marine ostracod C. silvestrii and R. Read More

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Dangerous traps: Macroplastic encounters affecting freshwater and terrestrial wildlife.

Sci Total Environ 2021 Dec 29;798:149317. Epub 2021 Jul 29.

Faculty of Exact Sciences, Engineering and Surveying National University of Rosario (FCEIA, UNR), Rosario, Argentina.

Encounters (or interactions) between plastic debris and wildlife can cause great harm to individuals and populations. The most common encounters are ingestion, entanglement and plastic usage (plastic as nesting material, vector for biota transport and refuge/shelter). Hundreds of plastic-encounters have been reported for marine species. Read More

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December 2021

Excess nitrogen in the Bohai and Yellow seas, China: Distribution, trends, and source apportionment.

Sci Total Environ 2021 Nov 25;794:148702. Epub 2021 Jun 25.

Institute of Marine Science and Technology, Shandong University, Qingdao 266237, China; State Key Laboratory of Marine Environmental Science, Xiamen University, Xiamen 361102, China. Electronic address:

The Bohai and Yellow seas are marginal seas of the western North Pacific, characterized by coastal eutrophication and populated coastlines. In this work, six survey datasets collected between 2011 and 2018 were used to investigate the excess of dissolved inorganic nitrogen (DIN) related to soluble reactive phosphorus (SRP), referred to as N*, in the Bohai and Yellow seas. High N* of more than 5 μmol kg occurred mostly in the Changjiang and Yellow River plumes and/or near the Jiangsu coast. Read More

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November 2021

Biological Control of Pest Non-Marine Molluscs: A Pacific Perspective on Risks to Non-Target Organisms.

Insects 2021 Jun 28;12(7). Epub 2021 Jun 28.

Bernice Pauahi Bishop Museum, Honolulu, HI 96822, USA.

Classic biological control of pest non-marine molluscs has a long history of disastrous outcomes, and despite claims to the contrary, few advances have been made to ensure that contemporary biocontrol efforts targeting molluscs are safe and effective. For more than half a century, malacologists have warned of the dangers in applying practices developed in the field of insect biological control, where biocontrol agents are often highly host-specific, to the use of generalist predators and parasites against non-marine mollusc pests. Unfortunately, many of the lessons that should have been learned from these failed biocontrol programs have not been rigorously applied to contemporary efforts. Read More

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gen. nov., sp. nov., a novel non-marine bacterium belonging to the group, and reclassification of (Zhong . 2015) as gen. nov., comb. nov.

Int J Syst Evol Microbiol 2021 Jun;71(6)

College of Forestry and Biotechnology, Zhejiang A&F University, Hangzhou 311300, PR China.

An aerobic, Gram-stain-negative, non-sporulating, flagellated and spindle-like bacterium, designated HY14, was isolated from a pickle-processing factory wastewater sample. The isolate chemoheterotrophically grew at 4-42 °C (optimum, 35 °C) and pH 5.5-9. Read More

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Air quality in Canadian port cities after regulation of low-sulphur marine fuel in the North American Emissions Control Area.

Sci Total Environ 2021 Oct 23;791:147949. Epub 2021 May 23.

Environmental Protection Branch, Environment and Climate Change Canada, Vancouver, British Columbia, Canada.

Large marine vessels have historically used high-sulphur (S) residual fuel oil (RFO), with substantial airborne releases of sulphur dioxide (SO₂) and fine particulate matter (PM) enriched in vanadium (V), nickel (Ni) and other air pollutants. To address marine shipping air pollution, Canada and the United States have jointly implemented a North American Emissions Control Area (NA ECA) within which ships are regulated to use lower-sulphur marine fuel or equivalent SO scrubbers (i.e. Read More

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October 2021

Diversity of non-marine gastropods of the Fiocruz Atlantic Forest Biological Station and adjacents urban areas, Rio de Janeiro, RJ, Brasil.

An Acad Bras Cienc 2021 31;93(2):e20190691. Epub 2021 May 31.

Instituto Oswaldo Cruz, Pavilhão Adolfo Lutz, Laboratório de Referência Nacional para Esquistossomose - Malacologia, Fundação Oswaldo Cruz, Avenida Brasil, 4365, Manguinhos, 21040-360 Rio de Janeiro, RJ, Brazil.

Our main objective was to perform a preliminary survey of the non-marine gastropods at the Estação Biológica Fiocruz Mata Atlântica (EFMA) and its adjacent urban areas, also considering samples from other localities of the Parque Estadual da Pedra Branca received as donation, in Rio de Janeiro, RJ, Brazil. Infection by larval helminths of medical and veterinary importance was also investigated in 348 specimens of five freshwater species and two specimens of the terrestrial species Achatina fulica. In all, 584 samples of molluscs from 34 collection sites were obtained. Read More

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Group Comparative Genomics: Toward Pangenome Features, Diversity, and Marine Environmental Adaptation.

Front Microbiol 2021 7;12:571212. Epub 2021 May 7.

Key Laboratory of Marine Genetic Resources, Third Institute of Oceanography, Ministry of Natural Resources, Xiamen, China.

Background: Members of the group (abbreviated as the group) are quite diverse and ubiquitous in marine environments, but little is known about correlation with their terrestrial counterparts. In this study, 16 marine strains that we had isolated before were sequenced and comparative genome analyses were performed with a total of 52 group strains. The analyses included 20 marine isolates (which included the 16 new strains) and 32 terrestrial isolates, and their evolutionary relationships, differentiation, and environmental adaptation. Read More

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Phylogenomic Insights into Distribution and Adaptation of Bdellovibrionota in Marine Waters.

Microorganisms 2021 Apr 3;9(4). Epub 2021 Apr 3.

Institute of Deep Sea Science and Engineering, Chinese Academy of Sciences, Sanya 572000, China.

Bdellovibrionota is composed of obligate predators that can consume some Gram-negative bacteria inhabiting various environments. However, whether genomic traits influence their distribution and marine adaptation remains to be answered. In this study, we performed phylogenomics and comparative genomics studies using 132 Bdellovibrionota genomes along with five metagenome-assembled genomes (MAGs) from deep sea zones. Read More

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Experimental freezing of freshwater pennate diatoms from polar habitats.

Protoplasma 2021 Nov 28;258(6):1213-1229. Epub 2021 Apr 28.

Department of Ecology, Faculty of Science, Charles University, Viničná 7, 128 44, Prague 2, Czech Republic.

Diatoms are microalgae that thrive in a range of habitats worldwide including polar areas. Remarkably, non-marine pennate diatoms do not create any morphologically distinct dormant stages that could help them to successfully face unfavourable conditions. Their survival is probably connected with the adaptation of vegetative cells to freezing and desiccation. Read More

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November 2021

A possible billion-year-old holozoan with differentiated multicellularity.

Curr Biol 2021 06 13;31(12):2658-2665.e2. Epub 2021 Apr 13.

Department of Animal & Plant Sciences, University of Sheffield, Alfred Denny Building, Western Bank, Sheffield S10 2TN, UK.

Sediments of the Torridonian sequence of the Northwest Scottish Highlands contain a wide array of microfossils, documenting life in a non-marine setting a billion years ago (1 Ga). Phosphate nodules from the Diabaig Formation at Loch Torridon preserve microorganisms with cellular-level fidelity, allowing for partial reconstruction of the developmental stages of a new organism, Bicellum brasieri gen. et sp. Read More

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