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508 results for “natural evolution”
Fig. 46 in Classification, Natural History, and Evolution of Epiphloeinae (Coleoptera: Cleridae). Part V. Decorosa Opitz, a New Genus of Checkered Beetles from Hispaniola with Description of Its Four New Species
Fig. 46. Geographic distribution of Decorosa Opitz species.
Fig. 44 in Classification, Natural History, and Evolution of Epiphloeinae (Coleoptera: Cleridae). Part V. Decorosa Opitz, a New Genus of Checkered Beetles from Hispaniola with Description of Its Four New Species
Fig. 44. Phylogenetic tree of Decorosa Opitz and related taxa; manually prepared.
Fig. 1 in Classification, Natural History, and Evolution of Epiphloeinae (Coleoptera: Cleridae). Part V. Decorosa Opitz, a New Genus of Checkered Beetles from Hispaniola with Description of Its Four New Species
Fig. 1. Habitus of Decorosa aladecoris Opitz.
Fig. 93 in Classification, natural history, and evolution of Tarsosteninae (Coleoptera: Cleroidea: Cleridae). Part IV. Taxonomy of the Tarsostenodes complex of Australia, New Caledonia, New Guinea, and Tasmania
Fig. 93: Geographic distribution of species as noted.
Fig. 92 in Classification, natural history, and evolution of Tarsosteninae (Coleoptera: Cleroidea: Cleridae). Part IV. Taxonomy of the Tarsostenodes complex of Australia, New Caledonia, New Guinea, and Tasmania
Fig. 92: Geographic distribution of Tarsostenodes guttulus.
Fig. 91 in Classification, natural history, and evolution of Tarsosteninae (Coleoptera: Cleroidea: Cleridae). Part IV. Taxonomy of the Tarsostenodes complex of Australia, New Caledonia, New Guinea, and Tasmania
Fig. 91: Geographic distribution of species as noted.
Fig. 90 in Classification, natural history, and evolution of Tarsosteninae (Coleoptera: Cleroidea: Cleridae). Part IV. Taxonomy of the Tarsostenodes complex of Australia, New Caledonia, New Guinea, and Tasmania
Fig. 90: Geographic distribution of Tarsostenodes simulator.
Fig. 50 in Classification, natural history, and evolution of Tarsosteninae (Coleoptera: Cleroidea: Cleridae). Part IV. Taxonomy of the Tarsostenodes complex of Australia, New Caledonia, New Guinea, and Tasmania
Fig. 50: Phylogenetic hypothesis of the species of the Tarsostenodes complex.
Fig. 1 in Classification, natural history, and evolution of Tarsosteninae (Coleoptera: Cleroidea: Cleridae). Part IV. Taxonomy of the Tarsostenodes complex of Australia, New Caledonia, New Guinea, and Tasmania
Fig. 1: Habitus of Tarsostenodes cribripennis.
Fig. 41 in Classification, Natural History, and Evolution of the Enopliinae GISTEL (Coleoptera Cleridae). Part IV. The New World genus Pyticara SPINOLA
Fig. 41: Geographic distribution of Pyticara championi.
Fig. 31 in Classification, Natural History, and Evolution of the Enopliinae GISTEL (Coleoptera Cleridae). Part IV. The New World genus Pyticara SPINOLA
Fig. 31: Phylogenetic hypothesis of Pyticara species.
Fig. 40 in Classification, Natural History, and Evolution of the Enopliinae GISTEL (Coleoptera Cleridae). Part IV. The New World genus Pyticara SPINOLA
Fig. 40: Geographic distribution of species as noted.
The telomere regulatory gene POT1 responds to stress and predicts performance in nature: implications for telomeres and life history evolution
<p>Telomeres are emerging as correlates of fitness-related traits and may be important mediators of ecologically relevant variation in life history strategies. Growing evidence suggests that telomere dynamics can be more predictive of performance than length itself, but very little work considers how telomere regulatory mechanisms respond to environmental challenges or influence performance in nature. Here, we combine observational and experimental datasets from free-living tree swallows (<i>Tachycineta bicolor</i>) to assess how performance is predicted by the telomere regulatory gene POT1, which encodes a shelterin protein that sterically blocks telomerase from repairing the telomere. First, we show that lower POT1 gene expression was associated with higher female quality, <i>i.e.</i> earlier breeding and heavier body mass. We next challenged mothers with an immune stressor (lipopolysaccharide injection) that led to 'sickness' in mothers and 24h of food restriction in their offspring. While POT1 did not respond to maternal injection, females with lower constitutive POT1 gene expression were better able to maintain feeding rates following treatment. Maternal injection also generated a one-day stressor for chicks, which responded with lower POT1 gene expression and elongated telomeres. Other putatively stress-responsive mechanisms (i.e. glucocorticoids, antioxidants) showed marginal responses in stress-exposed chicks. Model comparisons indicated that POT1 mRNA abundance was a largely better predictor of performance than telomere dynamics, indicating that telomere regulators may be powerful modulators of variation in life history strategies.</p>
The evolution of sexually dimorphic traits in ecological gradients: An interplay between natural and sexual selection in hummingbirds
<p><span>Traits that exhibit differences between the sexes have been of special interest in the study of phenotypic evolution. Classic hypotheses explain sexually dimorphic traits via intrasexual competition and mate selection, yet natural selection may also act differentially on the sexes to produce dimorphism. Natural selection can act either through physiological and ecological constraints on one of the sexes or by modulating the strength of sexual/social selection. This predicts an association between the degree of dimorphism and variation in ecological environments. Here, we characterise the variation in hummingbird dimorphism across ecological gradients using rich databases of morphology, colouration, and song. We show that morphological dimorphism decreases with elevation in the understorey and increases with elevation in mixed habitats, that dichromatism increases at high altitudes in open and mixed habitats, and that song is less complex in mixed habitats. Our results are consistent with flight constraints, lower predation pressure at high elevations, and with habitat effects on song transmission. We also show that dichromatism and song complexity are positively associated, while tail dimorphism and song complexity are negatively associated. Our results demonstrate that key ecological factors shape sexually dimorphic traits and that different communication modalities do not always evolve in tandem.</span></p>
Dataset from Nature Materials paper: Amorphous nickel hydroxide shell tailors local chemical environment on platinum surface for alkaline hydrogen evolution reaction
<p>Dataset of the paper "Amorphous nickel hydroxide shell tailors local chemical environment on platinum surface for alkaline hydrogen evolution reaction" accepted in Nature Materials.</p> <p>- GCGA_inputs.zip: A zip file containing all needed input files to run a grand canonical genetic algorithm (GCGA) global optimization structure search. Note that the script would need modifications to be compatible with later version of the GOCIA package, please following the most updated instructions at https://github.com/zishengz/gocia</p> <p>- GCGA_Ni12OxHy_all_samples.db: An ASE database file containing all unique structures from the GCGA search of Ni12OxHy on a Pt(111) surface. </p> <p>- GM_Ni12O25H13.vasp: The structure of the global minimum structure from GCGA search, which is also the surface structure we focused on in this study, in VASP structure format.</p> <p>- rxn_structures.zip: A zip file containing the structures of reaction intermediates investigated in this work, in VASP structure format</p> <p> </p>
Data from: Experimentally simulating the evolution-to-ecology connection: Divergent predator morphologies alter natural food webs
<p class="MsoNormal">The idea that changing environmental conditions drive adaptive evolution is a pillar of evolutionary ecology. But, the opposite—that adaptive evolution alters ecological processes—has received far less attention yet is critical for eco-evolutionary dynamics. We assessed the ecological impact of divergent values in a key adaptive trait using 16 populations of the brown anole lizard (<em class="i">Anolis sagrei</em>). Mirroring natural variation, we established islands with short- or long-limbed lizards at both low and high densities. We then monitored changes in lower trophic levels, finding that on islands with short-limbed lizards at high-density<span class="inserted">,</span> web spider<span class="inserted">s</span> decreased and plants grew more via an indirect positive effect, likely through an herbivore-mediated trophic cascade. Our experiment provides strong support for evolution-to-ecology connections in nature, likely closing an otherwise well-characterized eco-evolutionary feedback loop.</p>
Unveiling global species abundance distributions - Callaghan et al. 2023 - Nature Ecology and Evolution
<p>This repository represents some data and code to reproduce the main figures from Callaghan et al. 2023. Unveiling the global species abundance distributions of Eukaryotes. Nature Ecology and Evolution.</p>
The Future Evolution of Global Natural Gas Trade Output Data
<p>This data repository contains the GCAM output databases for the paper: Yarlagadda, B., G. Iyer, M. Binsted, P. Patel, M. Wise, and J. McLeod. (2023). The Future Evolution of Global Natural Gas Trade. </p>
Data from: Population genomics of rapid evolution in natural populations: polygenic selection in response to power station thermal effluents
Open the record for dataset details and reuse information.
Data from: Experimentally simulating the evolution-to-ecology connection: Divergent predator morphologies alter natural food webs
Open the record for dataset details and reuse information.
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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.