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744 results for “arbor”
Fig. 2. Phricotelphusa sukreei, new species. A, B, D in Phricotelphusa sukreei, a new species of arboreal freshwater crab (Crustacea: Brachyura: Gecarcinucidae) from Thailand
Fig. 2. Phricotelphusa sukreei, new species. A, B, D, holotype male (26.7 × 20.2 mm) (ZRC 2021.0815), Peninsular Thailand; C, paratype female (27.1 × 20.3 mm) (ZRC 2021.0824), Peninsular Thailand. A, overall dorsal view; B, C, dorsal view of carapace; D, chelae.
Fig. 5. Gonopods. A–F in Phricotelphusa sukreei, a new species of arboreal freshwater crab (Crustacea: Brachyura: Gecarcinucidae) from Thailand
Fig. 5. Gonopods. A–F, Phricotelphusa sukreei, new species, holotype male (26.7 × 20.2 mm) (ZRC 2021.0815), Peninsular Thailand; G, H, P. aedes (Kemp, 1923). A, F, left G1 (ventral view); B, G, distal part of left G1 (ventral view); C, H, distal part of left G1 (dorsal view); D, left G2; E, distal part of left G2.
Fig. 1 in Phricotelphusa sukreei, a new species of arboreal freshwater crab (Crustacea: Brachyura: Gecarcinucidae) from Thailand
Fig. 1. Phricotelphusa sukreei, new species, forest in high mountains, Srinagarindra District, Phatthalung Province, Peninsular Thailand. A, habitat at type locality; B, C, paratype male (22.7 × 17.4 mm) (PSUFTM-0001), in natural habitat; D–F, paratype male (23.1 × 18.4 mm) (PSUZC-CRU-0146), live colouration. D, overall dorsal view; E, frontal view of cephalothorax; F, ventral view of cephalothorax, chelae, and ambulatory legs.
Fig. 4 in Arboreal herbivory by a semi-terrestrial South African isopod crustacean, Tylos capensis Krauss (Isopoda: Tylidae), on the bietou bush, Chrysanthemoides monilifera (L.) Norlindh
Fig. 4. Logistic curves of the survival of the isopod Tylos capensis (expressed as a percentage) as a functIon of tIme for five dIfferent food treatments: (A) no food (NF); (B) lettuce (L); (C) boneseed leaves (Chrysanthemoides monilifera monilifera) from Jan Marais Nature Reserve (BSM); (D) boneseed leaves (C. monilifera monilifera) from Cape Hangklip (BSH); or (E) bietou bush leaves (Chrysanthemoides monilifera rotundata) from Yzerfontein. The logistic regression lines are plotted through the raw survIval data (shown as unfilled cIrcles) and the estImated mean survIval tImes for 50 and 90 % of each treatment group (LD50 and LD90 respectively) are shown with ± one standard error of the mean.
Figs 1, 2 in Arboreal herbivory by a semi-terrestrial South African isopod crustacean, Tylos capensis Krauss (Isopoda: Tylidae), on the bietou bush, Chrysanthemoides monilifera (L.) Norlindh
Figs 1, 2. Photographs at night of senior author D.S. Glazier near rows of bietou bushes Chrysanthemoides monilifera rotundata along walkways near The Promenade of Umhlanga beach, South Africa. These are two of the sites where numerous individuals of the isopod Tylos capensis were observed climbing on bietou bushes. Photographs © E. Kleynhans.
Fig. 3 in Arboreal herbivory by a semi-terrestrial South African isopod crustacean, Tylos capensis Krauss (Isopoda: Tylidae), on the bietou bush, Chrysanthemoides monilifera (L.) Norlindh
Fig. 3. Photograph at night of individuals of the isopod Tylos capensis climbing on stems and leaves of the bietou bush Chrysanthemoides monilifera rotundata along a walkway near The Promenade of Umhlanga beach, South Africa. Note the holes and cut-out margins of some of the leaves indicating feeding activity. Photograph © E. Kleynhans.
Climbing fiber multi-innervation of mouse Purkinje dendrites with arborization common to human
<p>Canonically, each Purkinje cell in the adult cerebellum receives only one climbing fiber from the inferior olive. Underlying current theories of cerebellar function is the notion that this highly conserved one-to-one relationship renders Purkinje dendrites into a single computational compartment. However, we show that multiple primary dendrites are a near-universal morphological feature in humans. Using tract-tracing, immunolabeling, and in vitro electrophysiology, we demonstrate in mice that ~25% of mature polydendritic cells receive more than one climbing fiber input. Two-photon calcium imaging in vivo reveals that separate dendrites can exhibit distinct response properties to sensory stimulation, indicating some polydendritic cells integrate functionally independent climbing fiber receptive fields. These findings reveal that Purkinje cells are morphologically and functionally more diverse than previously thought.</p>
Data from: Too cold to handle: Climatic constraints on arboreal ants in temperate forests
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Data from: Reaching new heights: Arboreal ant diversity in a North American temperate forest ecosystem
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Nest choice in arboreal ants is an emergent consequence of network creation under spatial constraints
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Climbing fiber multi-innervation of mouse Purkinje dendrites with arborization common to human
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Data from: Form-function relationships within species are uncoupled from those across species in swimming and jumping performance in arboreal frogs
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Annual tree growth for Red and Sugar Maples in six forest plots distributed around Ann Arbor, MI and around the University of Michigan Biological Station (UMBS), 1999 to 2022
The dataset contains the annual growth, in mm, of over 200 red and sugar maple trees. All trees are located in established study sites in the vicinity of Ann Arbor or UMBS.
Novel Tests of the Key Innovation Hypothesis: Adhesive Toepads in Arboreal Lizards
Abstract The evolution of key innovations—unique features that enable a lineage to interact with the environment in a novel way—may drive broad patterns of adaptive diversity. However, traditional tests of the key innovation hypothesis, those which attempt to identify the evolutionary effect of a purported key innovation by comparing patterns of diversity between lineages with and without the key trait, have been challenged on both conceptual and statistical grounds. Here, we explore alternative, untested hypotheses of the key innovation framework. In lizards, adhesive toepad structures increase grip strength on vertical and smooth surfaces such as tree trunks and leaves and have independently evolved multiple times. As such, toepads have been posited as a key innovation for the evolution of arboreality. Leveraging a habitat use dataset applied to a global phylogeny of 2692 lizard species, we estimated multiple origins of toepads in three major clades and more than 100 origins of arboreality widely across the phylogeny. Our results suggest that toepads arise adaptively in arboreal lineages and are subsequently rarely lost while maintaining arboreal ecologies. Padless lineages transition away from arboreality at a higher rate than those with toepads, and high rates of invasion of arboreal niches by non-arboreal padbearing lineages provides further evidence that toepads may be a key to unlocking evolutionary access to the arboreal zone. Our results and analytical framework provide novel insights to understand and evaluate the ecological and evolutionary consequences of key innovations.
Image 10 in Taxonomic status of the arboreal Skink Lizard Dasia halianus (Haly & Nevill, 1887) in Sri Lanka and the redescription of Dasia subcaeruleum (Boulenger, 1891) from India
Image 10. The sketch done by Annandale (1906) of the juvenile paralectotype.
Image 11 in Taxonomic status of the arboreal Skink Lizard Dasia halianus (Haly & Nevill, 1887) in Sri Lanka and the redescription of Dasia subcaeruleum (Boulenger, 1891) from India
Image 11. Dasia halianus live specimen, from Kuda-oya, Sri Lanka.
Image 9 in Taxonomic status of the arboreal Skink Lizard Dasia halianus (Haly & Nevill, 1887) in Sri Lanka and the redescription of Dasia subcaeruleum (Boulenger, 1891) from India
Image 9. Dorsolateral view of the lectotype Dasia halianus BMNH 1908.3.19.3.
Image 5 in Taxonomic status of the arboreal Skink Lizard Dasia halianus (Haly & Nevill, 1887) in Sri Lanka and the redescription of Dasia subcaeruleum (Boulenger, 1891) from India
Image 5. The dorsal view of type specimen of Dasia subcaeruleum BMNH 1946[1].8.15.55 011.
Image 7 in Taxonomic status of the arboreal Skink Lizard Dasia halianus (Haly & Nevill, 1887) in Sri Lanka and the redescription of Dasia subcaeruleum (Boulenger, 1891) from India
Image 7. Lateral view of NMSL R.S.K. II.
Data from: The arboreal ants of a Neotropical rainforest show high species density and comprise one third of the ant fauna
<p>In tropical rainforests, the ant community can be divided into ground and arboreal faunas. Here we report a thorough sampling of the arboreal ant fauna of La Selva Biological Station, a Neotropical rainforest site. Forty-five canopy fogging samples were centered around large trees. Individual samples harbored an average of 35 ant species, with up to 55 species in a single sample. The fogging samples yielded 163 observed species total, out of a statistically estimated 199 species. We found no relationship between within-sample ant richness and focal tree species, nor were the ant faunas of nearby trees more similar to each other than the faunas of widely spaced trees. Species density was high and beta diversity was low: a single column of vegetation typically harbors at least a fifth of the entire arboreal ant fauna. Considering the entire fauna, based on 23,326 species occurrence records using a wide variety of collecting methods, 182 of 539 observed species (196 of 605, estimated statistically) were entirely arboreal. The arboreal ant fauna is thus about a third of the total La Selva ant fauna, a robust result because inventory completeness was similar for ground and arboreal ants. The taxonomic history of discovery of the species that make up the La Selva fauna reveals no disproportionately large pool of undiscovered ant species in the canopy. The "last biotic frontier" for tropical ants has been the rotten wood, leaf litter, and soil of the forest floor.</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.