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196 results for “Free-ranging”
More people, more cats, more parasites: Human population density and temperature variation predict the prevalence of Toxoplasma gondii oocyst shedding in free-ranging domestic and wild felids
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Tayra (eira barbara) landscape use as a function of cover types, forest protection, and the presence of puma and free-ranging dogs
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Assessing physiological, behavioral and movement responses to Suprelorin® implant delivery methods in free-ranging eastern grey kangaroos (Macropus giganteus)
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Human socialization influences point following behaviour of free-ranging dogs
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Data from: To eat, or not to eat: A phantom decoy affects information-gathering behavior by a free-ranging mammalian herbivore
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The multidimensional nutritional niche of fungus-cultivar provisioning in free-ranging colonies of a neotropical leafcutter ant
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Quantifying the age-structure of free-ranging delphinid populations: testing the accuracy of Unoccupied Aerial System-photogrammetry
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Spatiotemporal analyses reveal infectious disease-driven selection in a free-ranging ungulate
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Spatial and temporal dynamics of space use by free-ranging domestic dogs Canis familiaris in rural Africa
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Differential predation patterns of free-ranging cats among continents
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Assessing the sociodemographic factors associated with Mycobacterium tuberculosis complex infection among free-ranging long-tailed Macaques in Thailand
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Does seasonal variation in the corticosterone response affect the nutritional ecology of a free-ranging lizard?
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Data from: Glucocorticoids negatively relate to body mass on the short-term in a free-ranging ungulate
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Taste aversion training can educate free-ranging crocodiles against toxic invaders
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Data from: The great Indian joint families of free-ranging dogs
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Does artificial feeding impact neonate growth rates in a large free-ranging mammal?
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Data from: Social facilitation can impact the responses of free-ranging dogs (Canis lupus familiaris) towards physical cognitive tasks
<p><span>Dogs are known to persist less in problem-solving tasks independently. While most of the studies so far have reported results based on experiments in pet dogs, conclusive evidence from free-ranging subpopulations is lacking. Free-ranging dogs are primarily scavengers and require problem-solving abilities to survive. We provided dogs with a familiar or an unfamiliar task in the presence of conspecifics. Both the tasks provided a single food-reward upon solving. We coded success, latency, and the duration of active engagement of the dogs in this study. We compared them with an earlier published dataset where individual dogs were tested in identical experimental set-ups. Our findings show that dogs have higher success rates in both the familiar and unfamiliar tasks when tested in the presence of conspecifics than when alone, suggesting a role of social facilitation. Furthermore, the presence of conspecifics facilitated dogs to approach faster and engage longer in the unfamiliar task than when tested alone. We provide the first evidence that social facilitation may play a crucial role in free-ranging dogs, especially in the context of problem-solving. </span></p>
Effects of snake fungal disease on short-term survival, behavior, and movement in free-ranging snakes
<p>Pathogenic fungi are increasingly associated with epidemics in wildlife populations. Snake fungal disease (SFD) is an emerging threat to snakes, taxa that are elusive and difficult to sample. Thus, assessments of the impacts of SFD on populations have rarely occurred. We used a field technique to enhance detection, Passive Integrated Transponder (PIT) telemetry, and a multistate capture-mark-recapture model to assess SFD effects on short-term (within-season) survival, movement, and surface activity of two wild snake species, Regina septemvittata (Queensnakes) and Nerodia sipedon (Common Watersnakes). We were unable to detect an effect of disease state on short-term survival for either species. However, we estimated Bayesian posterior probabilities of >0.99 that R. septemvittata with SFD spent more time surface-active and were less likely to permanently emigrate from the study area. We also estimated probabilities of 0.98 and 0.87 that temporary immigration and temporary emigration rates were lower in diseased R. septemvittata. We found evidence of elevated surface activity and lower temporary immigration rates in diseased N. sipedon, with estimated probabilities of 0.89, and found considerably less support for differences in permanent or temporary emigration rates. This study is the first to yield estimates for key demographic and behavioral parameters (survival, emigration, surface activity) of snakes in wild populations afflicted with SFD. Given the increase in surface activity of diseased snakes, future surveys of snake populations should explore longer-term demographic consequences of SFD and recognize that disease prevalence in surface-active animals may exceed that of the population as a whole.</p>
Data for: Maternal glucocorticoid levels during incubation predict breeding success, but not reproductive investment, in a free-ranging bird
<p>The hormone corticosterone (CORT) has been hypothesized to be linked with fitness, but the directionality of the relationship is unclear. The "CORT-fitness hypothesis" proposes that high levels of CORT arise from challenging environmental conditions, resulting in lower reproductive success (a negative relationship). In contrast, the "CORT-adaptation hypothesis" suggests that, during energetically demanding periods, CORT will mediate physiological or behavioural changes that result in increased reproductive investment and success (a positive relationship). During two breeding seasons, we experimentally manipulated circulating CORT levels in female tree swallows (<i>Tachycineta bicolor</i>) prior to egg laying, and measured subsequent reproductive effort, breeding success, and maternal survival. When females were recaptured during egg incubation and again during the nestling stage, the CORT levels were similar among individuals in each treatment group, and maternal treatment had no effect on indices of fitness. By considering variation among females, we found support for the "CORT-adaptation hypothesis"; there was a significant positive relationship between CORT levels during incubation and hatching and fledging success. During the nestling stage CORT levels were unrelated to any measure of investment or success. Within the environmental context of our study, relationships between maternal glucocorticoid levels and indices fitness vary across reproductive stages.</p>
Acquisition of object-robbing and object/food-bartering behaviors: A culturally maintained token economy in free-ranging long-tailed macaques
<p>The token exchange paradigm shows that monkeys and great apes are able to use objects as symbolic tools to request specific food rewards. Such studies provide insights into the cognitive underpinnings of economic behavior in non-human primates. However, the ecological validity of these lab-based experimental situations tends to be limited. Our field research aims to address the need for a more ecologically valid primate model of trading systems in humans. Around the Uluwatu Temple in Bali, Indonesia, a large free-ranging population of long-tailed macaques spontaneously and routinely engage in token-mediated bartering interactions with humans. These interactions occur in two phases: after stealing inedible and more or less valuable objects from humans, the macaques appear to use them as tokens, by returning them to humans in exchange for food. Our field observational and experimental data showed (1) age differences in robbing/bartering success, indicative of experiential learning, and (2) clear behavioral associations between value-based token possession and quantity or quality of food rewards rejected and accepted by subadult and adult monkeys, suggestive of robbing/bartering payoff maximization and economic decision-making. This population-specific, prevalent, cross-generational, learned and socially influenced practice may be the first example of a culturally maintained token economy in free-ranging animals.</p>
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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.