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744 results for “arbor”
Data from: Synergistic effects of fire and elephants on arboreal animals in an African savannah
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Data from: Arboreal ant abundance tracks primary productivity in an Amazonian whitewater river system
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Kinematic gait parameters of terrestrial and arboreal locomotion in Japanese macaques
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Data from: Arboreality increases reptile community resistance to disturbance from livestock grazing
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Systematic revision of the arboreal Neotropical ‘Thorellii’ clade of Centruroides Marx, 1890 bark scorpions (Buthidae c.l. Koch, 1837) with descriptions of six new species
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Data from: Some like it hot: from individual to population responses of an arboreal arid-zone gecko to local and distant climate
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Data from: Secondary succession has surprisingly low impact on arboreal ant communities in tropical montane rainforest
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Data from: An integrative approach to phylogeography: investigating the effects of ancient seaways, climate, and historical geology on multi-locus phylogeographic boundaries of the arboreal salamander (Aneides lugubris)
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Data from: Arboreal ecology of Plethodontidae: a review
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Data from: The microbiome of the ant-built home: the microbial communities of a tropical arboreal ant and its nest.
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Data from: Evidence for clinging arboreality in a Middle Jurassic stem lepidosaur
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Sex and age differences in tree cavity dependence in a small arboreal marsupial
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Arboreality drives heat tolerance while elevation drives cold tolerance in tropical rainforest ants
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Active modification of cavity nest-entrances is a common strategy in arboreal ants
<p>The majority of tropical arboreal ant species nest in tree cavities. These cavities, often produced initially by wood-boring beetles, can be in live or dead wood and represent long-lasting and highly defensible nesting resources. Yet the size of cavity entrances can constrain their use. Active entrance modification may be an effective way to overcome this constraint. Here, we conduct the first systematic study of nest-entrance modification in an arboreal ant community. Using field experiments deployed across a number of tree species, we show that 14% of 2631 experimental cavities were modified by either enlargement, or reducing entrance size by construction. Entrance modifications, which were made by a majority (18/29 species) of the species that occupied experimental nests, used a variety of construction techniques and materials. Combined, these modifications were context-dependent with respect to available entrance sizes: enlargement was more common when the diversity of available entrance sizes was limited, whereas reduction was more prevalent when the diversity of entrance sizes was higher. Nevertheless, the context of tree species identity did not significantly influence the number of modified cavities or the construction materials. Overall, we show that nest-entrance modification is a widespread, active, and context-dependent strategy in the nesting ecology of arboreal ants.</p>
Data from: High and dry: trade-off in arboreal calling in a treefrog mediated by local environment
Trade-offs shaping behavioral variation are often influenced by the environment. We investigated the role that the environment plays in mediating trade-offs using a widespread frog with a conspicuous mating display, Pseudacris crucifer. We first demonstrated, using playback and desiccation experiments, that calling site selection involves a trade-off between sound transmission and desiccation. We then determined the influence of local environmental conditions on the intensity of the trade-off by examining range-wide behavioral and environmental data. We showed that the benefit of improved call transmission is positively influenced by vegetation density and ground cover. Behavioral data are consistent with this relationship: sites with a greater transmission benefit have increased prevalence of arboreally-calling males. We also found that the prevalence of arboreal calling behavior increases with relative humidity and air temperature, suggesting an influence of these environmental variables on the desiccation cost of arboreal calling. This study provides a clear example of the role of the environment in mediating trade-off intensities and shaping critical behavioral traits.
Data from: Gripping during climbing of arboreal snakes may be safe but not economical
On the steep surfaces that are common in arboreal environments, many types of animals without claws or adhesive structures must use muscular force to generate sufficient normal force to prevent slipping and climb successfully. Unlike many limbed arboreal animals that have discrete gripping regions on the feet, the elongate bodies of snakes allow for considerable modulation of both the size and orientation of the gripping region. We quantified the gripping forces of snakes climbing a vertical cylinder to determine the extent to which their force production favoured economy or safety. Our sample included four boid species and one colubrid. Nearly all of the gripping forces that we observed for each snake exceeded our estimate of the minimum required, and snakes commonly produced more than three times the normal force required to support their body weight. This suggests that a large safety factor to avoid slipping and falling is more important than locomotor economy.
Data from: Bridging the gap: parkour athletes provide new insights into locomotion energetics of arboreal apes
The tree canopy is an energetically challenging environment to traverse. Along with compliant vegetation, gaps in the canopy can prove energetically costly if they force a route-extending detour. Arboreal apes exhibit diverse locomotion strategies, including for gap crossing. Which one they employ in any given scenario may be influenced by the energy costs to do so, which are affected by the details of the immediate environment in combination with their body size. Measuring energetics of arboreal apes is not tractable; thus our knowledge in this area is limited. We devised a novel, custom-made experimental set-up to record the energy expenditure of parkour athletes tree-swaying, jumping and vertical climbing. The latter strategy was vastly more expensive, indicating that when energy economy is the focus arboreal apes will prioritize routes that limit height changes. Whether tree-swaying or jumping was most economical for the athletes depended upon interactions between tree stiffness, the distance to cross, number of tree-sways required and their own mass. Updated analysis of previous interspecific correlations suggests that whether the relative costs to vertical climb are size-invariant across primate species is complicated by details of the climbing context.
Data from: A first phylogenetic analysis reveals a new arboreal tarantula genus from South America with description of a new species and two new species of Tapinauchenius Ausserer, 1871 (Araneae, Mygalomorphae, Theraphosidae)
Based on molecular and morphological phylogenetic analyses a new genus of Theraphosidae is described, Pseudoclamoris gen. n. Tapinauchenius gigas and Tapinauchenius elenae are transferred to Pseudoclamoris and a new species of Pseudoclamoris from the Amazon Region is described: P. burgessi sp. n. Two new species of Tapinauchenius from the Caribbean are described: T. rasti sp. n. and T. polybotes sp. n. Tapinauchenius subcaeruleus is considered a nomen dubium. Psalmopoeinae subfamily is diagnosed based on molecular and morphological phylogenies, and Pseudoclamoris gen. n. and Ephebopus Simon, 1892 are included. A taxonomic key for Psalmopoeinae genera Tapinauchenius, Pseudoclamoris, Psalmopoeus, and Ephebopus is provided.
FIGURE 2 in A new species of arboreal toad (Anura: Bufonidae: Chaunus) from Madidi National Park, Bolivia
FIGURE 2. Map of Bolivia with a bold square indicating the type locality of Chaunus tacana sp. nov.
FIGURE 6 in A new species of arboreal Rhinella (Anura: Bufonidae) from Yanachaga-Chemillén National Park in central Peru
FIGURE 6. Male Rhinella yanachaga (USNMFS 171096) in life. Photo by S. B. Hedges.
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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.