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132 results for “large carnivores”
Trust in researchers and researchers’ statements in large carnivore conservation
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Data from: Fear of the human ‘super predator’ reduces feeding time in large carnivores
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No Allee effect detected during the natural recolonization by a large carnivore despite low growth rate
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Experimental evidence for large carnivore risk cues reducing deer browsing intensity in a temperate forest
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Data from: Assessing the relationship between illegal hunting of ungulates, wild prey occurrence and livestock depredation rate by large carnivores
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Data from: Cascading impacts of large-carnivore extirpation in an African ecosystem
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Understanding habitat selection of range-expanding populations of large carnivores: 20 years of grey wolves (Canis lupus) recolonizing Germany
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Spatial separation of prey from livestock facilitates coexistence of a specialized large carnivore with human land use
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Data from: Anthropogenic and environmental factors determine occupancy and rarity of large carnivores in the Omo valley, Southwest Ethiopia
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Data from: Changes in African large carnivore diets over the past half-century reveal the loss of large prey
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Prey size mediates interference competition and predation dynamics in a large carnivore community
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Environmental impact assessment for large carnivores: a methodological review of the wolf (Canis lupus) monitoring in Portugal
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Data from: Olfactory cues of large carnivores modify red deer behavior and browsing intensity
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Individual and population fitness consequences associated with large carnivore use of residential development
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The wolf is back! Non-consumptive effects of the return of a large carnivore on the use of supplementary feeding sites by roe deer
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Data from: Temporal scale of habitat selection for large carnivores: Balancing energetics, risk and finding prey
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Data from: Homogenisation of carnivorous mammal ensembles caused by global range reductions of large-bodied hypercarnivores during the late Quaternary
Carnivorous mammals play crucial roles in ecosystems by influencing prey densities and behaviour, and recycling carrion. Yet, the influence of carnivores on global ecosystems has been affected by extinctions and range contractions throughout the Late Pleistocene and Holocene (~130 000 years ago to the current). Large-bodied mammals were particularly affected, but how dietary strategies influenced species' susceptibility to geographic range reductions remains unknown. We investigated 1) the importance of dietary strategies in explaining range reductions of carnivorous mammals (≥5% vertebrate meat consumption), and 2) differences in functional diversity of continental carnivore ensembles by comparing current, known ranges to current, expected ranges under a present-natural counterfactual scenario. The present-natural counterfactual estimates current mammal ranges had modern humans not expanded out of Africa during the Late Pleistocene and were not a main driver of extinctions and range contractions, alongside changing climates. Ranges of large-bodied hypercarnivorous mammals are currently smaller than expected, compared to smaller-bodied carnivorous mammals that consume less vertebrate meat. This resulted in consistent differences in continental functional diversity, whereby current ensembles of carnivorous mammals have undergone homogenisation through structural shifts towards smaller-bodied insectivorous and herbivorous species. The magnitude of ensemble structural shift varied among continents, with Australia experiencing the greatest difference. Weighting functional diversity by species' geographic range sizes caused a three-fold greater shift in ensemble centroids than when using presence-absence alone. Conservation efforts should acknowledge current reductions in the potential geographic ranges of large-bodied hypercarnivores and aim to restore functional roles in carnivore ensembles, where possible, across continents.
Figure 2 in Tyrannosaurus en pointe: allometry minimized rotational inertia of large carnivorous dinosaurs
Figure 2. RI versus body mass in carnivorous archosaurs. Grey bands indicate the range of changes in RI magnitudes when computed with body widths that were 110% and 90% of the original models.
Resource pulses influence the spatio-temporal dynamics of a large carnivore population
<p>Resource availability is a key component in animal ecology, yet the manner in which carnivore populations respond to spatial and temporal fluctuations of resources remains<br> unclear. We take a population-level approach to determine how resource pulses, in this case a temporary hyper-abundance of prey, influence the densities and space-use of cheetahs <em>Acinonyx jubatus</em>. The Maasai Mara in Kenya experiences an annual migration of > 1.4 million wildebeest <em>Connochaetes taurinus</em> and large numbers of zebras <em>Equus quagga</em> and Thomson's gazelle <em>Eudorcas thomsonii</em> thereby providing a natural experiment to examine the influence of resource pulses on carnivore movement and densities. To draw inferences on fluctuating cheetah densities and space-use, we collected unstructured search-encounter data during eight sampling sessions, four during and four out of the migration, and analysed these using Bayesian spatially-explicit capture–recapture (SECR) models with sex-specific detection function parameters. Both density and space-use fluctuated seasonally but this varied according to sex. Local cheetah densities increased in areas and during times when prey abundance was highest but this was more pronounced for females than males. In terms of space-use, movements were larger during the migration than out of the migration but this was more pronounced for males than females. These results suggest that males are influenced more by resource distribution whereas females by resource abundance. Overall densities did vary but there was no clear pattern in relation to resource pulses. Understanding the behavioural drivers of population dynamics in relation to resource pulses can provide important insights into ecological processes at multiple ecological levels.</p>
Data from: Recovery of large carnivores in Europe's modern human-dominated landscapes
The conservation of large carnivores is a formidable challenge for biodiversity conservation. Using a data set on the past and current status of brown bears (Ursus arctos), Eurasian lynx (Lynx lynx), gray wolves (Canis lupus), and wolverines (Gulo gulo) in European countries, we show that roughly one-third of mainland Europe hosts at least one large carnivore species, with stable or increasing abundance in most cases in 21st-century records. The reasons for this overall conservation success include protective legislation, supportive public opinion, and a variety of practices making coexistence between large carnivores and people possible. The European situation reveals that large carnivores and people can share the same landscape.
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Allen Brain Atlas
Allen Brain Atlas is an Allen Institute collection of brain map atlases, datasets, APIs, and analysis tools covering mouse, human, and non-human primate brain resources.
Annotated Behaviour and Observability Dataset (ABODe)
ABODe is a University of Edinburgh DataShare dataset for behavior classification in group-housed mice using home-cage video, identities, bounding boxes, ground-plate positions, and annotator labels.
DANDI Archive for NWB datasets
DANDI is a BRAIN Initiative archive for publishing and sharing neurophysiology data, including electrophysiology, optophysiology, and behavioral data packaged as NWB and related standards.
International Brain Laboratory public data
The International Brain Laboratory public data releases expose standardized mouse decision-making experiments, including Neuropixels recordings, widefield calcium imaging, behavior, and session metadata accessed through the ONE API.
OpenNeuro
OpenNeuro is a free, open platform for sharing neuroimaging datasets, with public search, dataset pages, and download paths for web, S3, DataLad, and the OpenNeuro CLI.