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229 results for “habitat ecology”
Data from: Ecological segregation in a small mammal hybrid zone: habitat-specific mating opportunities and selection against hybrids restrict gene flow on a fine spatial scale
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Ecological factors at fine spatial scale associated with habitat use by tigers in western Terai Arc landscape, Nepal
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Predicting habitat suitability for wild deer in relation to threatened ecological communities in south-eastern New South Wales, Australia
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Data from: Historical and recent processes shaping the geographic range of a rocky intertidal gastropod: phylogeography, ecology, and habitat availability
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Data from: Floodplains provide important amphibian habitat despite multiple ecological threats
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Is phylogeographic congruence predicted by historical habitat stability, or ecological co-associations?
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Data from: Combining human acceptance and habitat suitability in a unified socio-ecological suitability model: a case study of the wolf in Switzerland
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Data from: Trophic response to ecological conditions of habitats: evidence from trophic variability of freshwater fish
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FIGURE 11. Ecological habitat. A in Notes on Eurypalpae genus group (Orthoptera: Tettigoniidae: Phaneropterinae) with description of two new species
FIGURE 11. Ecological habitat. A: light trap; B: ecological habitat in China, Yunnan.
Data from: Evolutionary ecology of Early Paleocene planktonic foraminifera: size, depth habitat and symbiosis
The carbon stable isotope (δ13C) composition of the calcitic tests of planktonic foraminifera has an important role as a geochemical tracer of ocean carbon system changes associated with the Cretaceous/Paleogene (K/Pg) mass extinction event and its aftermath. Questions remain, however, about the extent of δ13C isotopic disequilibrium effects and the impact of depth habitat evolution on test calcite δ13C among rapidly evolving Paleocene species, and the influence this has on reconstructed surface-to-deep ocean dissolved inorganic carbon (DIC) gradients. A synthesis of new and existing multispecies data, on the relationship between δ13C and δ18O and test size, sheds light on these issues. Results suggest that early Paleocene species quickly radiated into a range of depths habitats in a thermally stratified water column. Negative δ18O gradients with increasing test size in some species of Praemurica suggest either ontogenetic or ecotypic dependence on calcification temperature that may reflect depth/light controlled variability in symbiont photosynthetic activity. The pattern of positive δ13C test-size correlations allows us to (1) identify metabolic disequilibrium δ13C effects in small foraminifera tests, as occur in the immediate aftermath of the K/Pg event, (2) constrain the timing of evolution of foraminiferal photosymbiosis to 63.5 Ma, ∼0.9 Myr earlier than previously suggested, and (3) identify the apparent loss of symbiosis in a late-ranging morphotype of Praemurica. These findings have implications for interpreting δ13C DIC gradients at a resolution appropriate for incoming highly resolved K/Pg core records.
Data from: Ecological constraints coupled with deep-time habitat dynamics predict the latitudinal diversity gradient in reef fishes
We develop a spatially explicit model of diversification based on paleohabitat to explore the predictions of four major hypotheses potentially explaining the latitudinal diversity gradient (LDG), namely, the 'time-area', 'tropical niche conservatism', 'ecological limits' and 'evolutionary speed' hypotheses. We compare simulation outputs to observed diversity gradients in the global reef fish fauna. Our simulations show that these hypotheses are non-mutually exclusive and that their relative influence depends on the time scale considered. Indeed, simulations suggest that reef habitat dynamics produced the LDG during deep geological time, while ecological constraints shaped the modern LDG, with a strong influence of the reduction in the latitudinal extent of tropical reefs during the Neogene. Overall, this study illustrates how mechanistic models in ecology and evolution can provide a temporal and spatial understanding of the role of speciation, extinction and dispersal in generating contemporary biodiversity patterns.
Data from: Apparent signal of competition limits diversification after ecological transitions from marine to freshwater habitats
Adaptive radiations are typically triggered when a lineage encounters a significant range of open niche space (ecological opportunity), stemming from i) colonization of new areas, ii) extinction of competitors, or iii) key innovations. The most well-known of these is the colonization of new areas, either through geographic dispersal or the invasion of a novel ecological habitats. One aspect of ecological opportunity that has rarely been studied, however, is whether the existence of potential competitors may act to limit evolutionary diversification in newly colonized adaptive zones. Here, we show that in multiple geographically independent reinvasions of freshwaters by marine Sea Catfishes (Ariidae), rates of diversification (estimated as a function of morphological disparity and cladogenesis) have been constrained by pre-existing high diversity freshwater lineages. Only one region (Australia-New Guinea), characterized by an otherwise-depauperate freshwater fauna, has an ariid invasion gained any substantial traction. This is true at both regional and community scales, suggesting that competitive constraints may be an important factor for adaptive radiation.
Ecological relationships among habitat type, food nutrients, parasites and hormones in wild boar during winter
<p>Habitat quality and parasite assembly influence wildlife health, and they are key indicators of health and survivability of wildlife populations. To investigate the potential ecological relationships among habitat type, food nutrients, parasites and hormones in wild boar (<i><span>Sus scrofa</span></i>), we collected samples of wild boar feces and available plants in their habitat <span>by line transects during winter</span><span>. </span><span>Along transects, we identified the composition of plants foraged by wild boar and measured the content of nutrients in available plants to estimate nutrient intake. We also quantified parasites and hormones in wild boar fecal samples. We compared food nutrients among different forest types and explored possible relationships among estimated nutrient intake, parasites and hormones.</span><span> We found coniferous forest</span><span> had positive effects on estimated fat intake and negative effects on estimated protein and fiber intake by wild boar</span><span>. Furthermore, we revealed that </span><span>estimated fat intake was negatively correlated with </span><i><span><span>Metastrongylus elongatus </span></span></i><span>parasites and positively correlated with triiodothyronine (T3). In contrast, estimated protein intake was positively correlated with </span><i><span><span>M. elongatus</span></span></i><span> and negatively correlated with T3. </span><span>Finally, we found </span><span>negative relationship</span><span>s</span><span> between T3 concentrations and loads of </span><i><span><span>Ascaris suum</span></span></i><span> parasites and between cortisol (COR) and loads of </span><i><span><span>Trichuris suis</span></span></i><span> parasites.</span><i> </i><span>T</span><span>hese insights on ecological relationships help identify potential dietary parameters in winter that could help predict and manage parasite and hormone responses for wild boar population recovery.</span>Habitat quality and parasite assembly influence wildlife health, and they are key indicators of health and survivability of wildlife populations. To investigate the potential ecological relationships among habitat type, food nutrients, parasites and hormones in wild boar (<i><span>Sus scrofa</span></i>), we collected samples of wild boar feces and available plants in their habitat <span>by line transects during winter</span><span>. </span><span>Along transects, we identified the composition of plants foraged by wild boar and measured the content of nutrients in available plants to estimate nutrient intake. We also quantified parasites and hormones in wild boar fecal samples. We compared food nutrients among different forest types and explored possible relationships among estimated nutrient intake, parasites and hormones.</span><span> We found coniferous forest</span><span> had positive effects on estimated fat intake and negative effects on estimated protein and fiber intake by wild boar</span><span>. Furthermore, we revealed that </span><span>estimated fat intake was negatively correlated with </span><i><span><span>Metastrongylus elongatus </span></span></i><span>parasites and positively correlated with triiodothyronine (T3). In contrast, estimated protein intake was positively correlated with </span><i><span><span>M. elongatus</span></span></i><span> and negatively correlated with T3. </span><span>Finally, we found </span><span>negative relationship</span><span>s</span><span> between T3 concentrations and loads of </span><i><span><span>Ascaris suum</span></span></i><span> parasites and between cortisol (COR) and loads of </span><i><span><span>Trichuris suis</span></span></i><span> parasites.</span><i> </i><span>T</span><span>hese insights on ecological relationships </span><span>help identify potential dietary parameters in winter that could help predict and manage parasite and hormone responses for wild boar population recovery.</span></p>
Supplementary material 1 from: Cirino DW, Lupinetti-Cunha A, Freitas CH, de Freitas SR (2022) Do the roadkills of different mammal species respond the same way to habitat and matrix? In: Santos S, Grilo C, Shilling F, Bhardwaj M, Papp CR (Eds) Linear Infrastructure Networks with Ecological Solutions. Nature Conservation 47: 65-85. https://doi.org/10.3897/natureconservation.47.73010
Correlation plot and R script for building and selecting best models
FIGURE 2 in The Sea Slug Phanerophthalmus luteus (Gastropoda: Opisthobranchia) and its Habitat and Ecology at the Marine Jellyfish Lake (Ongeim'l Tketau), Palau, Western Pacific Ocean
FIGURE 2. Aerial photograph of Mecherchar Island. The island is formed of uplifted Miocene limestone, with multiple lakes, including Jellyfish Lake indicated by the white arrow on the mid-right of the image. The lakes are surrounded by vegetation (green) while fringing reefs in the shallow waters surround the island (white to light blue), representing different marine habitats. P. luteus lives abundantly in Jellyfish Lake but was not observed on the reefs outside the island. Aerial photograph courtesy of Dr. Pat Colin.
FIGURE 6 in The Sea Slug Phanerophthalmus luteus (Gastropoda: Opisthobranchia) and its Habitat and Ecology at the Marine Jellyfish Lake (Ongeim'l Tketau), Palau, Western Pacific Ocean
FIGURE 6. Two Phanerophthalmus luteus mating on the bottom of Jellyfish Lake among algae attached to sediment (August 15, 2013). The specimens display the usual whitish to green to greenish blue colors of specimens in Jellyfish Lake. Image by Dr. Michael Dawson.
Supplementary material 1 from: Winiger N, Korner P, Arlettaz R, Jacot A (2018) Vegetation structure and decreased moth abundance limit the recolonisation of restored habitat by the European Nightjar. Rethinking Ecology 3: 25-39. https://doi.org/10.3897/rethinkingecology.3.29338
Site and moth data : Explanation note: Details about the study sites and moths.
Figure 4. F1 in Ecological and faunistic features of caddisflies (Insecta: Trichoptera) in different types of habitats in the Dinaric karst area (Central Croatia)
Figure 4. F1×F2 plane of CCA analysis showing 86 caddisfly taxa (77 species + 9 genera of females sp.) six selected environmental variables. Caddisfly taxa codes are presented in Tab. 2.
FIGURE 8. Ecological habitat. A in Two new species of Paraxantia Liu & Kang (Tettigoniidae: Phaneropterinae Vosiini) from Eastern Himalayas
FIGURE 8. Ecological habitat. A: Medog, Tibet, China; B: Dulongjiang, Yunnan, China.
Fig. 17. Habitats N in Hybridization Among Western Whiptail Lizards (Cnemidophorus Tigris) In Southwestern New Mexico: Population Genetics, Morphology, And Ecology In Three Contact Zones
Fig. 17. Habitats N of Steins, near the central transect (tables 2, 3; figs. 3, 5; appendix 1), 23 August 1990. Top. Looking N (from low hill behind allelemobile in fig. 16, top) across the grassland that separates site 16 (marmoratus) and site 12 (largely punctilinealis; figs. 3, 49). Bottom. Looking NE at grassland and alkali flats, from same place as the top photograph.
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These curated guides explain access requirements, typical timelines, costs, and reuse considerations for widely used research datasets.
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.