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510 results for “Ungulate”
FIG. 3 in Cranial Morphology And Phylogenetic Relationships Of Trigonostylops Wortmani, An Eocene South American Native Ungulate
FIG. 3. Trigonostylops wortmani. Top: Mandible (MPEF PV 5483) with dentition: A, occlusal, B, rostral (mesial), and C, right lateral views. D, Reconstructed skull in right lateral aspect, chiefly based on AMNH 28700, MLP 52-X-5-98, and MPEF PV 5483.
Effects of population density on static allometry between horn length and body mass in mountain ungulates
<p class="MsoNoSpacing">Little is known about the effects of environmental variation on allometric relationships of condition-dependent traits, especially in wild populations. We estimated sex-specific static allometry between horn length and body mass in four populations of mountain ungulates that experienced periods of contrasting density over the course of the study. These species displayed contrasting sexual dimorphism in horn size; high dimorphism in <i>Capra ibex</i> and <i>Ovis canadensis</i> and low dimorphism in <i>Rupicapra rupicapra</i> and <i>Oreamnos americanus</i>. The effects of density on static allometric slopes were weak and inconsistent while allometric intercepts were generally lower at high density, especially in males from species with high sexual dimorphism in horn length. These results confirm that static allometric slopes are more canalized than allometric intercepts against environmental variation induced by changes in population density, particularly when traits appear more costly to produce and maintain.</p>
Data from: "Influence of natal habitat preference on habitat selection during extra-home range movements in a large ungulate"
<p>Secondary dataset used for analysis in "Influence of natal habitat preference on habitat selection during extra-home range movements in a large ungulate". Raw GPS relocation data are not publicly available due to potential ethical implications but are available from the corresponding author (Nathan Hooven, nathan.d.hooven@gmail.com) upon reasonable request. Files include:</p> <p>deer_data_6.csv: Sampled covariate values for each used and available location used in SSF analysis</p> <p>Metadata: Metadata information for deer_data_6.csv</p>
LiDAR reveals a preference for intermediate visibility by a forest-dwelling ungulate species: Code and LiDAR data
<ol> <li>Visibility (viewshed) plays a significant and diverse role in animals' behavior and fitness. Understanding how visibility influences animal behavior requires the measurement of habitat visibility at spatial scales commensurate to individual animal choices. However, measuring habitat visibility at a fine spatial scale over a landscape is a challenge, particularly in highly heterogeneous landscapes (e.g., forests). As a result, our ability to model the influence of fine-scale visibility on animal behavior has been impeded or limited.</li> <li>In this study, we demonstrate the application of the concept of 3D cumulative viewshed in the study of animal spatial behavior at a landscape level. Specifically, we employed a newly described approach that combines terrestrial and airborne LiDAR to measure fine-scale habitat visibility (3D cumulative viewshed) on a continuous scale in forested landscapes. We applied the LiDAR-derived visibility to investigate how visibility in forests affects the summer habitat selection and the movement of 20 GPS-collared female red deer <em>Cervus</em> <em>elaphus</em> in a temperate forest in Germany. We used integrated step selection analysis to determine whether red deer show any preference for fine-scale habitat visibility and whether visibility is related to the rate of movement of red deer.</li> <li>We found that red deer selected intermediate habitat visibility. Their preferred level of visibility during the day was substantially lower than that of night and twilight, whereas the preference was not significantly different between night and twilight. In addition, red deer moved faster in high-visibility areas, possibly mainly to avoid predation and anthropogenic risk. Furthermore, red deer moved most rapidly between locations in the twilight.</li> <li>For the first time, the preference for intermediate habitat visibility and the adaption of movement rate to fine-scale visibility by a forest-dwelling ungulate species at a landscape scale was revealed. The LiDAR technique used in this study offers fine-scale habitat visibility at the landscape level in forest ecosystems, which would be of broader interest in the fields of animal ecology and behavior.</li> </ol>
Ungulate spatiotemporal responses to contrasting predation risk from wolves and snow leopards
<p>Spatial responses to risk from multiple predators can precipitate emergent consequences for prey (i.e., multiple-predator effects, MPEs) and mediate indirect interactions between predators. How prey navigate risk from multiple predators may therefore have important ramifications for understanding the propagation of predation-risk effects (PREs) through ecosystems. The interaction of predator and prey traits has emerged as a potentially key driver of anti-predator behaviour but remains underexplored in large vertebrate systems, particularly where sympatric prey share multiple predators. We sought to better generalize our understanding of how predators influence their ecosystems by considering how multiple sources of contingency drive prey distribution in a multi-predator-multi-prey system. Specifically, we explored how two sympatric ungulates with different escape tactics – vertically agile, scrambling ibex (<em>Capra sibirica</em>) and sprinting argali (<em>Ovis ammon</em>) – responded to predation risk from shared predators with contrasting hunting modes – cursorial wolves (<em>Canis lupus</em>) and vertical-ambushing, stalking snow leopards (<em>Panthera uncia</em>). Contrasting risk posed by the two predators presented prey with clear trade-offs. Ibex selected for greater exposure to chronic long-term risk from snow leopards, and argali for wolves, in a nearly symmetrical manner that was predictable based on the compatibility of their respective traits. Yet, acute short-term risk from the same predator upended these long-term strategies, increasing each ungulate's exposure to risk from the alternate predator in a manner consistent with a scenario in which conflicting anti-predator behaviours precipitate risk-enhancing MPEs and mediate predator facilitation. By contrast, reactive responses to wolves led ibex to reduce their exposure to risk from both predators – a risk-reducing MPE. Evidence of a similar reactive risk-reducing effect for argali vis-à-vis snow leopards was lacking.<strong> </strong>Our results suggest that prey spatial responses and any resulting MPEs and prey-mediated interactions between predators are contingent on the interplay of hunting mode and escape tactics. Further investigation of interactions among various drivers of contingency in PREs will contribute to a more comprehensive understanding and improved forecasting of the ecological effects of predators. </p>
LiDAR reveals a preference for intermediate visibility by a forest-dwelling ungulate species: Deer locational data
<ol> <li>Visibility (viewshed) plays a significant and diverse role in animals' behavior and fitness. Understanding how visibility influences animal behavior requires the measurement of habitat visibility at spatial scales commensurate to individual animal choices. However, measuring habitat visibility at a fine spatial scale over a landscape is a challenge, particularly in highly heterogeneous landscapes (e.g., forests). As a result, our ability to model the influence of fine-scale visibility on animal behavior has been impeded or limited.</li> <li>In this study, we demonstrate the application of the concept of 3D cumulative viewshed in the study of animal spatial behavior at a landscape level. Specifically, we employed a newly described approach that combines terrestrial and airborne LiDAR to measure fine-scale habitat visibility (3D cumulative viewshed) on a continuous scale in forested landscapes. We applied the LiDAR-derived visibility to investigate how visibility in forests affects the summer habitat selection and the movement of 20 GPS-collared female red deer <em>Cervus</em> <em>elaphus</em> in a temperate forest in Germany. We used integrated step selection analysis to determine whether red deer show any preference for fine-scale habitat visibility and whether visibility is related to the rate of movement of red deer.</li> <li>We found that red deer selected intermediate habitat visibility. Their preferred level of visibility during the day was substantially lower than that of night and twilight, whereas the preference was not significantly different between night and twilight. In addition, red deer moved faster in high-visibility areas, possibly mainly to avoid predation and anthropogenic risk. Furthermore, red deer moved most rapidly between locations in the twilight.</li> <li>For the first time, the preference for intermediate habitat visibility and the adaption of movement rate to fine-scale visibility by a forest-dwelling ungulate species at a landscape scale was revealed. The LiDAR technique used in this study offers fine-scale habitat visibility at the landscape level in forest ecosystems, which would be of broader interest in the fields of animal ecology and behavior.</li> </ol>
Fig. 1 in Camera traps and genetic identification of faecal samples for detection and monitoring of an endangered ungulate
Fig. 1. Distribution of deployed camera traps showing presence (black circles) and non-detection (purple circles) and genetic sampling locations showing presence (black triangles) and non-detection (purple triangles) of Eld's deer. Inset map shows the location of Chhaeb Wildlife Sanctuary in Cambodia (black rectangle). Background shows proportion of tree cover from WorldCover land cover map (© ESA WorldCover project 2020 / Contains modified Copernicus Sentinel data (2020) processed by ESA WorldCover consortium).
Fig. 1 in Middle Eocene ungulate mammals from Myanmar: A review with description of new specimens
Fig. 1. Geographical map of the Pondaung area of central Myanmar showing several vertebrate fossil localities in the Pondaung Formation.
Fig. 5 in Middle Eocene ungulate mammals from Myanmar: A review with description of new specimens
Fig. 5. Lower dentition of Bahinolophus birmanicus (Pilgrim, 1925) comb. nov. A. NMMP−KU 1199, a left mandibular corpus with p2 and heavily broken other postcanine teeth (new specimen); A1, occlusal view of the mandible; A2, lingual view of p2; A3, occlusal view of p2; A4, buccal view of p2; A5, schematic drawing of the occlusal view. B. NMMP−KU 1795, a talonid of a right?p3 (new specimen); B1, occlusal view; B2, schematic drawing of the occlusal view. C, D. The type specimens, left and right lower mandibular fragments with left and right p4–m3. C. GSI C348, left p4–m3; C1, occlusal view; C2, schematic drawing of the occlusal view. D. BMNH M12756, right p4–m3; D1, occlusal view; D2, schematic drawing of the occlusal view.
LiDAR reveals a preference for intermediate visibility by a forest-dwelling ungulate species: Deer locational data
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Land cover preferences and spatiotemporal associations of ungulates within a Scottish mammal community
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Fat storage influences fasting endurance more than body size in an ungulate
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Impacts of an omnivorous ungulate on plant communities and soil organic carbon
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Effects of population density on static allometry between horn length and body mass in mountain ungulates
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Sex-specific selection of agricultural farmland by a partially migratory ungulate
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Data from: Grazing by non-native ungulates negatively impacts vegetation important to a native species of concern
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The role of spatiotemporal variation in resources in the diverse movement strategies of temperate ungulates
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Data and R code from: Spatiotemporal risk factors predict landscape-scale survivorship for a northern ungulate
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Ungulate spatiotemporal responses to contrasting predation risk from wolves and snow leopards
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LiDAR reveals a preference for intermediate visibility by a forest-dwelling ungulate species: Code and LiDAR data
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Allen Brain Atlas
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Annotated Behaviour and Observability Dataset (ABODe)
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DANDI Archive for NWB datasets
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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.