Results 41 to 50 of about 2,758 (173)

Notas nomenclaturales sobre anfibios actuales y fósiles

Graellsia, 2012
Una revisión de anfibios extintos y actuales en estado fósil (Allocaudata, Anura y Caudata) ha permitido detectar diversos casos que precisan cambios nomenclaturales a fin de estabilizar la taxonomía del grupo.
C. Martín, M. A. Alonso-Zarazaga, B. Sanchiz   +2 more
doaj   +1 more source

River‐Floodplain Metacommunities as Complex Networks: The Interplay of Species Interactions, Dispersal, and Environment

Environmental DNA, Volume 8, Issue 1, January–February 2026.
A network‐based framework reveals how species interactions, environmental conditions, and dispersal shape heterogeneous river‐floodplain metacommunities. Using spatiotemporal eDNA data, Bayesian network learning, and graph theory, we identify sub‐communities and key connector species, highlighting mechanisms of dynamic community assembly and informing ...
Andrea Funk, István Czeglédi, Tibor Erős, Lukas Landler, Paul Meulenbroek, Didier Pont, Sonia Recinos Brizuela, Alice Valentini, Thomas Hein   +8 more
wiley   +1 more source

Multiple Threats Have Overlapping Impacts Across Ecological Levels in Freshwater Ecosystems

Freshwater Biology, Volume 71, Issue 1, January 2026.
ABSTRACT Changes driven by climate change, biological invasion, land‐use change, pollution and overexploitation are decreasing the resilience of freshwater ecosystems worldwide. While the impact of these threats is widely recognised, a critical gap remains in systematically quantifying their relative effects across ecological levels, which is essential
Tauany Rodrigues, Vinicius F. Farjalla, Juliana S. Leal, Helena A. Prado, Aliny P. F. Pires   +4 more
wiley   +1 more source

Alternative Splicing and Gene Expression Variation Underlie Population and Life History Differences in an Amphibian

Ecology and Evolution, Volume 15, Issue 11, November 2025.
Populations along anthropogenic disturbance gradients exhibit phenotypic differences, yet the mechanisms underlying these variations remain unclear. By examining gene expression and alternative splicing in wood frogs, we found significant life stage and population‐specific transcriptomic differences, though only two genes (HSP70 and Gpsm2) showed ...
Juntao Hu, Xingyue Ren, Rowan D. H. Barrett, Eman Samma, Mikolaj Sulkowski, Steven P. Brady   +5 more
wiley   +1 more source

Assessing the evidence for treating developmental plasticity and phenotypic flexibility as different phenomena

Functional Ecology, Volume 39, Issue 11, Page 2949-2961, November 2025.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Phenotypic plasticity has long played a central role in eco‐evolutionary theory, but it was not until 20 years ago that it was proposed that the term encompasses two distinct phenomena—developmental plasticity and phenotypic flexibility. While this terminology has since
Maria Stager, Jonathan P. Velotta, Zachary A. Cheviron, Nathan R. Senner   +3 more
wiley   +1 more source

An emerging viral pathogen truncates population age structure in a European amphibian and may reduce population viability [PDF]

PeerJ, 2018
Infectious diseases can alter the demography of their host populations, reducing their viability even in the absence of mass mortality. Amphibians are the most threatened group of vertebrates globally, and emerging infectious diseases play a large role ...
Lewis J. Campbell, Trenton W.J. Garner, Giulia Tessa, Benjamin C. Scheele, Amber G.F. Griffiths, Lena Wilfert, Xavier A. Harrison   +6 more
doaj   +2 more sources

ZW and XY Sex Chromosomes Drive Rapid and Distinctive Evolution of Sex‐Biased Gene Expression

Molecular Ecology, Volume 34, Issue 22, November 2025.
ABSTRACT Cichlids are a textbook model system of adaptive radiation and a fascinating example of rapid sex chromosome evolution. Yet in these fish, as in most other taxa, the mechanisms causing sex chromosome turnover and the subsequent impact thereof are unknown.
Kevin Hsiung, Sophie Helen Smith, Astrid Böhne   +2 more
wiley   +1 more source

Histological and Gene Expression Analyses of the Arm and Finger Macroglands of Two Hyloxalus Frogs (Dendrobatidae)

Molecular Ecology, Volume 34, Issue 22, November 2025.
ABSTRACT Chemical communication during courtship is well documented in salamanders and newts, but its role in frogs is less understood. In some Neotropical poison frogs, males exhibit specialised mucous glands (SMGs) in the hand integument that express high levels of sodefrin precursor‐like factors (SPFs), an amphibian pheromone. Some species also show
Diana Abondano Almeida, Marvin Anganoy‐Criollo, Taran Grant, Sofiia Klimovych, Lisa M. Schulte   +4 more
wiley   +1 more source

The distribution of Rana temporaria L. (Amphibia) in an acidified and a non-acidified region of Norway

Fauna Norvegica
The common frog Rana temporaria L. was absent from a poorly buffered, anthropogenically acidified, inland area (Solhomfjell) of Southern Norway where the pH values of ponds and lakes ranged from 4.3 to 4.8 and the Ala concentration was usually below 150
Dag Dolmen, Inggard Blakar, Jon Kristian Skei   +2 more
doaj   +1 more source

Longevity, Age‐Specific Survival, and Mean Generation Time of Rana muscosa: Implications for Conservation of Possibly the Longest‐Lived Ranid Frog

Ecology and Evolution, Volume 15, Issue 10, October 2025.
We examined 22 years of mark and recapture data for an endangered amphibian (Rana muscosa) and estimated longevity, age‐specific survival, and mean generation time. The oldest individual was determined to be at least 21 years old. ABSTRACT Life history strategies vary widely among species and play a vital role in extinction risk, especially in a ...
Cynthia J. Hitchcock, Adam R. Backlin, Amanda R. Goldberg, Sarah K. Thomsen, Erin Muths, Elizabeth A. Gallegos, Robert N. Fisher   +6 more
wiley   +1 more source