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203 results for “bird nest”
Figures 15–20 in Mesostigmata mites (Acari: Parasitiformes) associated with birds and their nests from Egypt
Figures 15–20. Steatonyssus longipes Radovsky & Yunker, 1963: 15- general view, 16- sternal shield, 17- anal shield. Dermanyssus gallinae (De Geer, 1778): 18- general body shape, 19- close-up to the gnathosoma showing the whip-like chelicerae, 20- anal shield. Scale bars = 100 µm.
Figure 2 in The food web of parasitoid wasps and their non-phytophagous fly hosts in birds' nests (Hymenoptera: Chalcidoidea, and Diptera: Cyclorrhapha)
Figure 2. Restricted web; see text for restriction criteria; legend: see Figure 1.
Figure 4 from: César E, Bandala VM, Montoya L, Ramos A (2018) A new Gymnopus species with rhizomorphs and its record as nesting material by birds (Tyrannideae) in the subtropical cloud forest from eastern Mexico. MycoKeys 42: 21-34. https://doi.org/10.3897/mycokeys.42.28894
Figure 4 Gymnopusnidus-avis: a Hymenial trama elements b Thick- and thin-walled hyphae from stipe medullary tissue c Hyphae and terminal elements of pileipellis (holotype). Scale bars: 10 µm (a–c).
Figure 3 from: César E, Bandala VM, Montoya L, Ramos A (2018) A new Gymnopus species with rhizomorphs and its record as nesting material by birds (Tyrannideae) in the subtropical cloud forest from eastern Mexico. MycoKeys 42: 21-34. https://doi.org/10.3897/mycokeys.42.28894
Figure 3 Gymnopusnidus-avis: a Spores b Basidia c Cheilocystidia d Pileipellis (holotype). Scale bars: 5 µm (a); 10 µm (b–d).
Figure 1 from: César E, Bandala VM, Montoya L, Ramos A (2018) A new Gymnopus species with rhizomorphs and its record as nesting material by birds (Tyrannideae) in the subtropical cloud forest from eastern Mexico. MycoKeys 42: 21-34. https://doi.org/10.3897/mycokeys.42.28894
Figure 1 Phylogenetic relationships within Gymnopus species inferred from the ITS sequence dataset by maximum likelihood method (ML). Tree with the highest log likelihood (-3619.93). Initial tree(s) for the heuristic search were obtained automatically by applying Neighbour-Joining and BioNJ algorithms to a matrix of pairwise distances estimated using the Maximum Composite Likelihood (MCL) approach and then selecting the topology with superior log likelihood value. The bootstrap values and Bayesian posterior probabilities (obtained after Bayesian inference) are indicated on the tree branches (BS/BPP). Sequences obtained in this study are in bold.
Data for: Ground nesting in passerine birds: Evolution, biogeography and life history correlates
<p>Nest location is one of the key components of avian reproduction and sharp transitions between different nest location strategies may have profound ecological and evolutionary consequences. Here, we used a phylogenetically-informed comparative framework to reconstruct the evolution of ground nesting behaviour in passerine birds, quantify its biogeographical and habitat variation, and test for its associations with life history traits. Our dataset comprised over 1600 species distributed worldwide and representing ca. 90% of all extant passerine families. Our analyses revealed a scattered phylogenetic distribution and moderate phylogenetic signal in the occurrence of ground nesting in passerines. We also found relatively high forward and backward transitions rates between character states of ground and non-ground nesting, indicating strong evolutionary lability. Non-ground nesting was identified as a likely ancestral state at the root of passerine phylogeny. Occurrence of ground nesting was clearly associated with habitat variation, as open habitats generally supported greater proportion of ground nesting species than non-open habitats (forests). Within the major habitat categories we found greater proportion of ground nesters in boreal and temperate than subtropical and tropical zones. This reflected a general latitudinal gradient in the occurrence of ground nesting, with higher proportion of ground nesting species at higher latitudes (especially at the northern hemisphere). Ground nesting was also associated with fast life histories, as ground nesters had larger clutches, shorter incubation periods and faster chick development rates than non-ground nesters. This variation was possibly driven by higher predation rates on nestlings and adult birds in ground nesting species. Our study lays a foundation for a comprehensive understanding of mechanisms and processes that have driven macroevolution of ground nesting behaviour in the most species-rich extant avian lineage.</p>
Data from: Cover, not caging, influences chronic physiological stress in a ground-nesting bird
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Data from: A ground-nesting Galliform’s response to thermal heterogeneity: Implications for ground-dwelling birds
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Data from: Hyperabundant herbivores limit habitat availability and influence nest-site selection of Arctic-breeding birds
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Data from: Escape distance in ground-nesting birds differs with individual level of camouflage
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Data for: Ground nesting in passerine birds: Evolution, biogeography and life history correlates
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Dataset: Cool birds: First evidence of energy-saving nocturnal torpor in free-living common swifts Apus apus resting in their nests
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Environmental conditions but not nest composition affect reproductive success in an urban bird
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Data from: Evolution of iris colour in relation to cavity nesting and parental care in passerine birds
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Data from: Higher nest predation favors rapid fledging at the cost of plumage quality in nestling birds
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Data from: Daily nest predation rates decrease with body size in passerine birds
<p>Body size evolution is generally framed by the benefits of being large, while costs are largely overlooked. An important putative cost of being large is the need to extend development periods, which should increase exposure to predation and potentially select against larger size. In birds, this selection pressure can be important because predation is the main source of offspring mortality and predators should more readily detect the larger nests associated with larger body sizes. Here, we show for diverse passerine birds across the world that, counter to expectations, larger species suffer lower daily nest predation rates than smaller species. This pattern is consistent despite latitudinal variation in predation and does not seem to reflect a tendency of larger species to use more protected nests or less exposed nest locations. Evidence instead suggests that larger species attack a wider array of predator sizes, which could reduce predation rates at nests of large-bodied species. Regardless of the mechanism, the lower daily nest predation rates of larger species yield slightly lower predation rates over the entire development period compared to smaller species. These results highlight the importance of behavior as a mechanism to alter selection pressures, and have implications for body size evolution.</p>
Data from: Effects of interspecific coexistence on laying date and clutch size in two closely related species of hole‐nesting birds
Coexistence between great tits Parus major and blue tits Cyanistes caeruleus, but also other hole‐nesting taxa, constitutes a classic example of species co‐occurrence resulting in potential interference and exploitation competition for food and for breeding and roosting sites. However, the spatial and temporal variations in coexistence and its consequences for competition remain poorly understood. We used an extensive database on reproduction in nest boxes by great and blue tits based on 87 study plots across Europe and Northern Africa during 1957–2012 for a total of 19,075 great tit and 16,729 blue tit clutches to assess correlative evidence for a relationship between laying date and clutch size, respectively, and density consistent with effects of intraspecific and interspecific competition. In an initial set of analyses, we statistically controlled for a suite of site‐specific variables. We found evidence for an effect of intraspecific competition on blue tit laying date (later laying at higher density) and clutch size (smaller clutch size at higher density), but no evidence of significant effects of intraspecific competition in great tits, nor effects of interspecific competition for either species. To further control for site‐specific variation caused by a range of potentially confounding variables, we compared means and variances in laying date and clutch size of great and blue tits among three categories of difference in density between the two species. We exploited the fact that means and variances are generally positively correlated. If interspecific competition occurs, we predicted a reduction in mean and an increase in variance in clutch size in great tit and blue tit when density of heterospecifics is higher than the density of conspecifics, and for intraspecific competition, this reduction would occur when density of conspecifics is higher than the density of heterospecifics. Such comparisons of temporal patterns of means and variances revealed evidence, for both species, consistent with intraspecific competition and to a smaller extent with interspecific competition. These findings suggest that competition associated with reproductive behaviour between blue and great tits is widespread, but also varies across large spatial and temporal scales.
Figure 2 from: César E, Bandala VM, Montoya L, Ramos A (2018) A new Gymnopus species with rhizomorphs and its record as nesting material by birds (Tyrannideae) in the subtropical cloud forest from eastern Mexico. MycoKeys 42: 21-34. https://doi.org/10.3897/mycokeys.42.28894
Figure 2 Gymnopusnidus-avis: basidiomata (César 36, holotype). Scale bar: 4 mm
Clinical Efficacy and Safety of Sericin Hydrogel Sheet Impregnated With Bird's Nest Extract
ClinicalTrials.gov study NCT04997863. IPD Sharing: Not stated. Countries: 1. Publications: 0.
Data from: Daily nest predation rates decrease with body size in passerine birds
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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.