Results 81 to 90 of about 13,266 (145)

Food Subsidies Reduce Livestock Depredations by a Recovering Carnivore

open access: yesAnimal Conservation, EarlyView.
Diversionary feeding—providing food caches to divert predators away from preying on livestock—is a strategy to reduce depredations by Mexican gray wolves but has not been evaluated for its effectiveness. We used data from the Mexican wolf recovery program from 2014‐2021 to evaluate whether diversionary feeding reduced livestock depredations by wolf ...
Matthew Hyde   +8 more
wiley   +1 more source

Prey Partitioning in a Diverse Carnivore Community: Implications for Reintroduced Fishers in Washington

open access: yesAnimal Conservation, EarlyView.
Using fecal DNA metabarcoding, we quantified dietary overlap among reintroduced fishers and sympatric coyotes, bobcats, and Pacific martens in Washington's North Cascades. Niche overlap was substantial for common prey but varied with body size, revealing fine‐scale resource partitioning that may limit fishers' access to energetically efficient prey ...
Kayla A. Shively   +7 more
wiley   +1 more source

Бурый медведь (Ursus arctos) острова Завьялова (Охотское море): численность и возможные пути миграции

open access: yesАмурский зоологический журнал, 2022
В статье приведен анализ численности бурого медведя Ursus arctos Linnaeus на о. Завьялова и дано описание возможных путей миграции между островом, материковой частью побережья и другими островами с учетом преобладающих морских течений, ветров и ледовых ...
Максим Бориславич Горшунов
doaj  

Evolutionary and ecological traps for brown bears Ursus arctos in human‐modified landscapes

open access: yes, 2018
The suggestions of two anonymous referees and Nancy Jennings greatly improved the first draft of the manuscript. VP was financially supported by the Excellence Project CGL2017- 82782-P financed by the Spanish Ministry of Economy, Industry and ...
V. Penteriani   +7 more
semanticscholar   +1 more source

Morphometric and Paleobiological Insights Into Pleistocene Sicilian Wolf Populations

open access: yesActa Zoologica, EarlyView.
ABSTRACT The Pleistocene wolves (Canis lupus) from Sicily represent one of the few known insular populations of this species from that time period. Despite their potential relevance for understanding carnivore adaptations in insular contexts, no dedicated study has previously investigated their morphology and evolutionary significance.
Domenico Tancredi   +3 more
wiley   +1 more source

Remodeling of skeletal muscle myosin metabolic states in hibernating mammals

open access: yeseLife
Hibernation is a period of metabolic suppression utilized by many small and large mammal species to survive during winter periods. As the underlying cellular and molecular mechanisms remain incompletely understood, our study aimed to determine whether ...
Christopher TA Lewis   +22 more
doaj   +1 more source

Exploring dietary adaptations in Ursus minimus: a 3D geometric morphometric analysis of the mandible

open access: yesBoreas, EarlyView.
Using 3D geometric morphometrics, the dietary adaptations of the extinct Auvergne bear (Ursus minimus) are analysed. Its mandibular morphology aligns more closely with omnivorous rather than insectivorous bears, challenging current ideas. The extinct bear Ursus minimus, which lived in Europe during the Pliocene and possibly Early Pleistocene, is ...
Anneke H. van Heteren
wiley   +1 more source

Fossil bears break free from inhibitory cascade constraints at least twice (Ursus minimus and Ursus deningeri) caused by dietary adaptations

open access: yesBoreas, EarlyView.
Bears deviate from the inhibitory cascade model (ICM) during molar size evolution, with two significant deviations linked to changes in diet: Ursus minimus and Ursus deningeri. Many bears exhibit a ‘partial ICM’, highlighting the relationship between relative molar size, dietary adaptations and dental development across different species.
Anneke H. van Heteren, A. Stefanie Luft
wiley   +1 more source

Phenology of brown bear breeding season and related geographical cues

open access: yesThe European Zoological Journal, 2020
Knowledge about breeding biology is often incomplete in species with complex reproductive strategies. The brown bear Ursus arctos is a polygamous seasonal breeder inhabiting a wide variety of habitats and environmental conditions. We compiled information
A. García-Rodríguez   +12 more
doaj   +1 more source

Habituation reverses fear-based ecological effects in brown bears (Ursus arctos)

open access: yes, 2016
Fear induced by human activity is increasingly becoming recognized to influence both behavior and population biology of wildlife. Exposure to human activity can cause animals to avoid human-dominated areas or shift temporal activity patterns, but ...
R. Wheat, C. Wilmers
semanticscholar   +1 more source

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