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151
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151 results for “lemur”
Data from: Visual ecology of true lemurs suggests a cathemeral origin for the primate cone opsin polymorphism
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Data from: Assessing the Function of Geophagy in a Malagasy Rainforest Lemur
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Data from: Are shy individuals less behaviorally variable? Insights from a captive population of mouse lemurs
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Data from: Multilocus coalescent analyses reveal the demographic history and speciation patterns of mouse lemur sister species
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Data from: Genetic variation at MHC class II loci influences both olfactory signals and scent discrimination in ring-tailed lemurs
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Data from: Life history profiles for 27 strepsirrhine primate taxa generated using captive data from the Duke Lemur Center
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Data from: Phylogenomic reconstruction of sportive lemurs (genus Lepilemur) recovered from mitogenomes with inferences for Madagascar biogeography
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Data from: Species discovery and validation in a cryptic radiation of endangered primates: coalescent-based species delimitation in Madagascar's mouse lemurs
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Data from: Transcriptomics in the wild: hibernation physiology in free‐ranging dwarf lemurs
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Data from: The role of nocturnal omnivorous lemurs as seed dispersers in Malagasy rain forests
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Data from: Heritability and genetic correlations of personality, life history, and morphology in the grey mouse lemur (M. murinus)
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Data from: Novel opsin gene variation in large-bodied, diurnal lemurs
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Convergent evolution in lemur environmental niches
<p>Aim: To test the hypothesis that adaptive convergent evolution of climate niches occurred in multiple independent lemur lineages. </p> <p>Location: Madagascar</p> <p>Taxon: Lemurs</p> <p>Methods: I collected climate and altitude data from WorldClim and summarized the niches of almost all living lemurs (83 species) into phylogenetically-controlled principal components. To test for convergent evolution, I searched for multiple, similar climate optima using multi-peak Ornstein-Uhlenbeck models (surface, l1-ou, bayou). I compared the observed level of climate convergence to that simulated under neutral and single-optimum models. To test if behavioral or morphological traits were related to climate niches, I used phylogenetic regressions with activity pattern, diet, and body size.</p> <p>Results: From an ancestral niche with high rainfall and low seasonality, four lemur lineages independently converged on climate niche optima characterized by high temperatures and low rainfall, supporting adaptive evolution in southwest deciduous and arid habitats. The observed level of convergence was more frequent than expected under Brownian motion and single-optimum simulations, which illustrates that the results are likely not a result of stochastic evolution over long time periods. Nocturnal and cathemeral activity patterns were common among lineages in the arid climate niche. </p> <p>Conclusion: Lemur climate niche evolution demonstrated that convergence explains the distribution of four independent clades in hot, arid environments of southwest Madagascar. The timing of these convergent shifts coincided with the origination of modern arid-adapted plant genera, some of which are important lemur food sources. These communities have high endemicity and are especially threatened by habitat loss. Arid environments are arenas in which convergent evolution is predicted to occur frequently. </p>
Data from: Individual recognition through olfactory - auditory matching in lemurs
Individual recognition can be facilitated by creating representations of familiar individuals, whereby information from signals in multiple sensory modalities become linked. Many vertebrate species use auditory–visual matching to recognize familiar conspecifics and heterospecifics, but we currently do not know whether representations of familiar individuals incorporate information from other modalities. Ring-tailed lemurs (Lemur catta) are highly visual, but also communicate via scents and vocalizations. To investigate the role of olfactory signals in multisensory recognition, we tested whether lemurs can recognize familiar individuals through matching scents and vocalizations. We presented lemurs with female scents that were paired with the contact call either of the female whose scent was presented or of another familiar female from the same social group. When the scent and the vocalization came from the same individual versus from different individuals, females showed greater interest in the scents, and males showed greater interest in both the scents and the vocalizations, suggesting that lemurs can recognize familiar females via olfactory–auditory matching. Because identity signals in lemur scents and vocalizations are produced by different effectors and often encountered at different times (uncoupled in space and time), this matching suggests lemurs form multisensory representations through a newly recognized sensory integration underlying individual recognition.
Lemur Database for Taxonomic Profiling (bacteria, archaea, fungi)
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SICILIAN_lemur_Mmur3_Refs
<p>SICILIAN pipeline (https://github.com/salzmanlab/SICILIAN) index, reference, and annotation files for Mouse Lemur Mmur3 assembly.</p>
FAMILY LEMURIDAE Bamboo, True and Ruffed Lemurs in Lemuridae
FAMILY LEMURIDAE Bamboo, True and Ruffed Lemurs
FAMILY LEMURIDAE Bamboo, True and Ruffed Lemurs in Lemuridae
FAMILY LEMURIDAE Bamboo, True and Ruffed Lemurs
Data from: Intertemporal choice in lemurs
Different species vary in their ability to wait for delayed rewards in intertemporal choice tasks. Models of rate maximization account for part of this variation, but other factors such as social structure and feeding ecology seem to underly some species differences. Though studies have evaluated intertemporal choice in several primate species, including Old World monkeys, New World monkeys, and apes, prosimians have not been tested. This study investigated intertemporal choices in three species of lemur (black-and-white ruffed lemurs, Varecia variegata, red ruffed lemurs, Varecia rubra, and black lemurs, Eulemur macaco) to assess how they compare to other primate species and whether their choices are consistent with rate maximization. We offered lemurs a choice between two food items available immediately and six food items available after a delay. We found that by adjusting the delay to the larger reward, the lemurs were indifferent between the two options at a mean delay of 17 s, ranging from 9-25 s. These data are comparable to data collected from common marmosets (Callithrix jacchus). The lemur data were not consistent with models of rate maximization. The addition of lemurs to the list of species tested in these tasks will help uncover the role of life history and socio-ecological factors influencing intertemporal choices.
Data from: Individual recognition through olfactory - auditory matching in lemurs
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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.