Results 61 to 70 of about 16,821 (223)

Delisting the Northern Rocky Mountain gray wolf from the US Endangered Species Act: an assessment of political discourse over 20 years

open access: yesWildlife Biology, EarlyView.
Feared, revered, and politicized, wolves have long captured human imagination, and ignited fierce conservation conflicts. In the United States, the Endangered Species Act protects species at risk of extinction from human impacts. This far‐reaching legislation, which impacts development and state‐level wildlife management, has been fraught with legal ...
Iree Wheeler   +9 more
wiley   +1 more source

Ursus arctos Linnaeus 1758

open access: yes, 1982
Ursus arctos Linnaeus, 1758. Syst. Nat., 10th ed., 1:47. TYPE LOCALITY: Sweden. DISTRIBUTION: Formerly, N. W. Africa, all of Palearctic from W. Europe, Near and Middle East through N. Himalayas to W. and N. China and Chukotka (U.S. S.R.); Hokkaido (Japan). Western North America, north from N. Mexico.
Honacki, James H.   +2 more
openaire   +1 more source

Comparative Trends of Sociality Among Terrestrial Carnivores: A Multivariate Analysis 陆生食肉动物社会性的比较趋势:一项多变量分析

open access: yesWildlife Letters, EarlyView.
In this study we analyze the role of phylogeny, environment, and community structure on sociality. Using structural equation modeling (SEM) we aim to quantify the direct and indirect impacts of variables on behaviors including social grouping, reproduction, and space use among Carnivora species.
Jessica Ward   +3 more
wiley   +1 more source

Análisis Multivariante de la morfología dental de los Ursidos del Plio-Pleistoceno, con algunas consideraciones sobre la posición filogenética de Ursus deningeri von REICHENAU de Cueva Mayor (Sima de los Huesos) [PDF]

open access: yes, 1995
En el présente estudio se analizan las frecuencias poblacionales de distintos morfotipos para un total de 23 caracteres dentarios en 8 poblaciones pertenecientes a 4 especies de úrsidos Plio-Pleistocenos Ibéricos.
Torres Pérez-Hidalgo, Trinidad José
core  

Portable X‐Ray Fluorescence in the Assessment of Zinc Along Grizzly Bear Hair

open access: yesX-Ray Spectrometry, EarlyView.
ABSTRACT As a biomarker of past uptake of zinc, hair presents an interesting option since its growth can provide a stored record over time. This study investigates the distribution of zinc in hairs gathered from a series of grizzly bears (Ursus arctos horribilis).
David E. B. Fleming   +2 more
wiley   +1 more source

Osos (Mammalia, Carnivora, Ursidae) del Pleistoceno Ibérico: II. Estudio anatómico y métrico de la mandíbula, hioides atlas y axis [PDF]

open access: yes, 1988
En este trabajo se analizan los aspectos morfológicos y métricos de la mandíbula, hioides, atlas y axis de los grandes osos del Pleistoceno de la Península Ibérica.
Torres Pérez-Hidalgo, Trinidad José
core   +1 more source

Climatic–Anthropogenic Synergy Drives Escalating Minimum Area Requirements and Connectivity‐Protection Mismatch in a Karst‐Endemic Primate

open access: yesIntegrative Zoology, EarlyView.
Climate change and anthropogenic activities drive antagonistic degradation of landscape connectivity for endangered François’ langur (1987–2024), causing 48.8% habitat loss, north‐south fragmentation, and centroid migration (1.2 km/yr). Despite protected areas buffering connectivity, static management fails dynamic priority habitats; we propose ...
Guangmei Yang   +5 more
wiley   +1 more source

Mammal fauna during the Late Pleistocene and Holocene in the far northeast of Europe [PDF]

open access: yes, 2013
The paper summarises materials on the mammal remains in northeastern Europe, dated by radiocarbon. Altogether, 23 local faunas of small mammals and 47 local faunas of large mammals were analysed.
Andersen   +72 more
core   +4 more sources

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

THE GENUS URSUS IN EURASIA: DISPERSAL EVENTS AND STRATIGRAPHICAL SIGNIFICANCE

open access: yesRivista Italiana di Paleontologia e Stratigrafia, 2017
On the basis of the results of former studies by the present authors five main groups of bears are recognized: Ursus gr. minimus - thibetanus (black bears), Ursus gr. etruscus (etruscan bears), Ursus gr. arctos (brown bears), Ursus gr.
MARCO RUSTIONI, PAUL MAZZA
doaj   +1 more source

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