Results 91 to 100 of about 7,676 (261)

Genomics Insights Into High‐Latitude Adaptation of Tibetan Macaques

Advanced Science, Volume 13, Issue 14, 9 March 2026.
Tibetan macaques exhibit unique adaptations to cold, high‐latitude environments, including shortened tails and enhanced fat storage. Genomic analyses reveal a species‐specific TBX6 mutation linked to tail reduction and selection on lipid metabolism genes.
Rusong Zhang, Ying Hu, Yang Teng, Jiwei Qi, Yangzhen Ciren, Lin Zhang, Qiao Du, Wencai Xu, Liang Zhou, Zhenxin Fan, Jinchuan Xing, Ming Li, Jing Li   +12 more
wiley   +1 more source

Sources of Pre‐ and Postnatal Maternal Energy Allocation to Offspring in a Long‐Lived, Capital Breeder: The Grey Seal (Halichoerus grypus)

Ecology and Evolution, Volume 16, Issue 3, March 2026.
Few studies have simultaneously assessed multiple sources of variation in maternal energy allocation and how allocation might vary over a female's lifetime. We used 20 years of cross‐sectional and longitudinal data on 222 known‐age grey seals, which was collected as part of long‐term monitoring programme of grey seals that breed on Sable Island ...
M. Sanchez, W. D. Bowen, C. E. den Heyer, S. J. Iverson   +3 more
wiley   +1 more source

Top‐Down and Bottom‐Up Processes Jointly Explain Mesopredator Movement and Foraging Ecology

Ecology Letters, Volume 29, Issue 3, March 2026.
This study integrates top‐down (polar bear habitat selection) and bottom‐up (fish distribution) processes to test how mesopredators (ringed seals) balance risk–reward tradeoffs in habitat selection. Ringed seals reduced their space use and foraging time in response to predation risk, yet accepted higher risk when prey diversity was elevated ...
Katie R. N. Florko, Tyler R. Ross, Steven H. Ferguson, Joseph M. Northrup, Martyn E. Obbard, Gregory W. Thiemann, David J. Yurkowski, Marie Auger‐Méthé   +7 more
wiley   +1 more source

Developing Multi-Level Institutions from Top-Down Ancestors

International Journal of the Commons, 2007
The academic literature contains numerous examples of the failures of both top-down and bottom-up common pool resource management frameworks. Many authors agree that management regimes instead need to utilize a multi-level governance approach to meet ...
Martha Dowsley
doaj   +1 more source

Interspecific killing among mammalian carnivores [PDF]

, 1999
Interspecific killing among mammalian carnivores is common in nature and accounts for up to 68% of known mortalities in some species. Interactions may be symmetrical (both species kill each other) or asymmetrical (one species kills the other), and ...
Caro, T.M., Palomares, Francisco
core   +1 more source

Avian influenza overview December 2025–February 2026

EFSA Journal, Volume 24, Issue 3, March 2026.
Abstract Between 29 November 2025 and 27 February 2026, 2514 highly pathogenic avian influenza (HPAI) A(H5) virus detections were reported in domestic (406) and wild (2108) birds in 32 countries in Europe. Albeit still at high levels after the peak was reached at the beginning of the current reporting period, the weekly number of detections has since ...
European Food Safety Authority (EFSA), European Centre for Disease Prevention and Control (ECDC), European Union Reference Laboratory for Avian Influenza (EURL), Cyril Barbezange, Hubert Buczkowski, Mariette Ducatez, Alice Fusaro, Jose L. Gonzales, Thijs Kuiken, Gražina Mirinavičiūtė, Karl Ståhl, Christoph Staubach, Olov Svartström, Calogero Terregino, Katriina Willgert, Evelyn Alarcón, Lisa Kohnle   +16 more
wiley   +1 more source

Climate Change, Local Harvests and Marine Contamination: A Perspective on Cetacean Populations and Coastal Whaling Communities

Aquatic Conservation: Marine and Freshwater Ecosystems, Volume 36, Issue 2, February 2026.
ABSTRACT Cetaceans are indicators of ocean health, influence marine ecosystem dynamics and hold socio‐economic importance for coastal whaling communities. Yet whale–whaler relationships remain poorly understood and are increasingly compromised under the triple planetary crisis of climate change, biodiversity loss and pollution. Here, we briefly outline
Melissa A. McKinney, Jeremy J. Kiszka
wiley   +1 more source

No need to replace an “anomalous” primate (Primates) with an “anomalous” bear (Carnivora, Ursidae)

ZooKeys, 2015
By means of mitochondrial 12S rRNA sequencing of putative “yeti”, “bigfoot”, and other “anomalous primate” hair samples, a recent study concluded that two samples, presented as from the Himalayas, do not belong to an “anomalous primate”, but to an ...
Eliécer Gutiérrez, Ronald H. Pine
doaj   +1 more source

Efficacy of aerial forward-looking infrared surveys for detecting polar bear maternal dens.

PLoS ONE, 2020
Denned polar bears (Ursus maritimus) are invisible under the snow, therefore winter-time petroleum exploration and development activities in northern Alaska have potential to disturb maternal polar bears and their cubs.
Tom S Smith, Steven C Amstrup, B J Kirschhoffer, Geoffrey York   +3 more
doaj   +1 more source

Polar bear dens on the Seal and Caribou Rivers, Manitoba

Arctic Science
During aerial surveys, we opportunistically located clusters of polar bear (Ursus maritimus Phipps, 1774) earth dens on and near the Seal and Caribou Rivers in Northern Manitoba in 2011, 2022, and 2023.
Douglas A. Clark, Joanie L. Kennah, Chantal Cadger MacLean, Stephen N. Atkinson   +3 more
doaj   +1 more source