Find research datasets worth reusing
Search datasets from major research repositories and use ShareScore to quickly assess how well each record supports discovery, access, and reuse.
221
datasets available to search
ShareScore release 0.9.0
Dataset results
221 results for “passerine bird”
FIGURE 20 in Revision of the subfamily Onychalginae Fain, 1988 (Acariformes: Pyroglyphidae) — ectoparasites of passerine birds
FIGURE 20. Onychalginae, details: aedeagus, spermatheca, and modified setae s and w of posterior legs.
FIGURE 19 in Revision of the subfamily Onychalginae Fain, 1988 (Acariformes: Pyroglyphidae) — ectoparasites of passerine birds
FIGURE 19. Paramealia ovata (Gaud and Mouchet, 1959), tarsi. Male (A–D): tarsi I–IV in ventral view, respectively; female (E, F): tarsi III and IV in ventral view, respectively.
FIGURE 7. Onychalges pachyspathus Gaud, 1968, larva. A in Revision of the subfamily Onychalginae Fain, 1988 (Acariformes: Pyroglyphidae) — ectoparasites of passerine birds
FIGURE 7. Onychalges pachyspathus Gaud, 1968, larva. A—dorsal view; B—ventral view; C—leg I in ventral view; D—leg II in ventral view; E—genu-tarsus III in ventral view. Scale bars: 100 Μm = A, B; 50 Μm = C–E.
FIGURE 6. Onychalges pachyspathus Gaud, 1968 in Revision of the subfamily Onychalginae Fain, 1988 (Acariformes: Pyroglyphidae) — ectoparasites of passerine birds
FIGURE 6. Onychalges pachyspathus Gaud, 1968, SEM photos of male. A—gnathosoma in ventral view; B –apical part of tarsus I in dorsal view; C—tarsus II in lateral view; D—tarsus III in lateral view.
FIGURE 9. Onychalges pachyspathus Gaud, 1968, tritonymph. A in Revision of the subfamily Onychalginae Fain, 1988 (Acariformes: Pyroglyphidae) — ectoparasites of passerine birds
FIGURE 9. Onychalges pachyspathus Gaud, 1968, tritonymph. A—dorsal view; B—ventral view; C—tarsus III in ventral view; D—tarsus IV in ventral view. Scale bars: 100 Μm = A, B; 50 Μm = C, D.
FIGURE 16 in Revision of the subfamily Onychalginae Fain, 1988 (Acariformes: Pyroglyphidae) — ectoparasites of passerine birds
FIGURE 16. Onychalges spp., tarsi. Onychalges schizurus Gaud, 1968 (A, B), male: A—tarsus I in dorsal view; B—tarsus II in dorsal view; Onychalges longitarsus (Bonnet, 1924) (C–G): C—pretarsus I in dorsal view, male; D—tarsus III in ventral view, male; E—tarsus IV in ventral view, male; F—tarsus III in ventral view, female; G—tarsus IV in ventral view, female.
FIGURE 5. Onychalges pachyspathus Gaud, 1968 in Revision of the subfamily Onychalginae Fain, 1988 (Acariformes: Pyroglyphidae) — ectoparasites of passerine birds
FIGURE 5. Onychalges pachyspathus Gaud, 1968, SEM photos. Female (A, B): A—dorsal view; B—prodorsum; male (C–F): C—dorsal view; D—opisthosoma in ventral view; E—aedeagus; F—apical part of tarsus IV in ventral view.
FIGURE 12. Onychalges odonturus Gaud, 1968, male. A in Revision of the subfamily Onychalginae Fain, 1988 (Acariformes: Pyroglyphidae) — ectoparasites of passerine birds
FIGURE 12. Onychalges odonturus Gaud, 1968, male. A—dorsal view; B—ventral view; C—apical membrane of opisthosomal lobe (specimen from Lagonosticta rubricata); D—apical membrane of opisthosomal lobe (specimen from Amandava subflava).
FIGURE 8. Onychalges pachyspathus Gaud, 1968, protonymph. A in Revision of the subfamily Onychalginae Fain, 1988 (Acariformes: Pyroglyphidae) — ectoparasites of passerine birds
FIGURE 8. Onychalges pachyspathus Gaud, 1968, protonymph. A—dorsal view; B—ventral view; C—tibia-tarsus IV in ventral view. Scale bars: 100 Μm = A, B; 50 Μm = C.
Digital records of Brown-headed Cowbirds removing eggs and nestlings from nests of grassland passerine birds in southwest Wisconsin
<p>We present digital recordings from video surveillance systems at nests of grassland birds. Video surveillance systems were used as part of grassland bird studies done in southwestern Wisconsin. Study sites were clustered near Mt. Horeb (43.0167°N, 89.7500°W). Four grassy field types were studied: continuously-grazed pasture, prairie, and cool- and warm-season grass fields. The digital recordings archived here were used to document egg and nestling destruction by the Brown-headed Cowbird (<em>Molothrus ater</em>).</p>
Dataset on the content of Cu, Ni Cd, Pb, Zn, Ag, Mg, Fe, Co and Ca in the carcass, gastrointestinal tract tissues and the whole body of nestlings of a small passerine bird, the Eurasian Reed Warbler Acrocephalus scirpaceus
<p><span>The data include the description of the age and the </span><span>concentrations of </span><span>Cu, Ni Cd, Pb, Zn, Ag, Mg, Fe, Co and Ca<span> measured in the </span>isolated, emptied gastrointestinal tract, <span>the whole body, and </span>carcass of the each individual nestling of a different age and hence a different stage of <span>post-natal development. The dataset includes also</span> some additional information on the breeding biology of the focal species. </span></p>
Data From: Winter mortality of a passerine bird increases following hotter summers and during winters with higher maximum temperatures
<p><span>Climate change influences animal population dynamics via effects on survival or reproduction. However, attributing changes in mortality to specific climate variables is challenging as it is often not known exactly when individuals died within a year. Here, we investigated climate effects on adult mortality in Australian superb fairy-wrens (<em>Malurus cyaneus</em>). Over a 27-year period, mortality outside the breeding season nearly doubled. This non-breeding season mortality increased with both lower minimum and higher maximum temperatures in winter, and with higher heatwave intensity in the previous summer. Fine-scale analysis showed that higher mortality in a given week was associated with higher maxima two weeks prior, as well as with lower minima in the current fortnight. Increases in summer heatwaves and in winter maximum temperatures collectively explained 62.6% of the increase in mortality over time. Warming climate in both summer and winter can thus adversely affect survival, with potentially substantial population consequences.</span></p>
Fig. 6 Citrilolepis citrili n. g., n in Two new cestode species of the family Hymenolepididae Perrier, 1897 (Cyclophyllidea) from passerine birds in Ethiopia, with the erection of Citrilolepis n. g.
Fig. 6 Citrilolepis citrili n. g., n. sp. A, Scolex. B, Detail of scolex and neck demonstrating microtriches of tegument at higher magnification. Scale-bars: A, 50 µm; B, 10 µm
Fig. 2 Passerilepis zimbebel n in Two new cestode species of the family Hymenolepididae Perrier, 1897 (Cyclophyllidea) from passerine birds in Ethiopia, with the erection of Citrilolepis n. g.
Fig. 2 Passerilepis zimbebel n. sp. A, Postmature proglottis; B, Gravid proglottis; C, Genital ducts in a mature proglottis, dorsal view; D, Egg. Scale-bars: A–C, 100 µm; D, 50 µm
Fig. 1 Passerilepis zimbebel n in Two new cestode species of the family Hymenolepididae Perrier, 1897 (Cyclophyllidea) from passerine birds in Ethiopia, with the erection of Citrilolepis n. g.
Fig. 1 Passerilepis zimbebel n. sp. A, Scolex; B, Rostellar hooks in various positions (first two hooks in lateral position); C, Male mature proglottis; D, Hermaphroditic mature proglottis with an early stage of uterine development. Scale-bars: A, 50 µm; B, 30 µm; C, D, 100 µm
Fig. 4 Citrilolepis citrili n. g., n in Two new cestode species of the family Hymenolepididae Perrier, 1897 (Cyclophyllidea) from passerine birds in Ethiopia, with the erection of Citrilolepis n. g.
Fig. 4 Citrilolepis citrili n. g., n. sp. A, Hermaphroditic mature proglottides with young uterus; B, Postmature proglottis; C, Pregravid proglottides. Scale-bars: A–C, 200 µm
Data from: A passerine bird's evolution corroborates the geologic history of the island of New Guinea
New Guinea is a biologically diverse island, with a unique geologic history and topography that has likely played a role in the evolution of species. Few island-wide studies, however, have examined the phylogeographic history of lowland species. The objective of this study was to examine patterns of phylogeographic variation of a common and widespread New Guinean bird species (Colluricincla megarhyncha). Specifically, we test the mechanisms hypothesized to cause geographic and genetic variation (e.g., vicariance, isolation by distance and founder-effect with dispersal). To accomplish this, we surveyed three regions of the mitochondrial genome and a nuclear intron and assessed differences among 23 of the 30 described subspecies from throughout their range. We found support for eight highly divergent lineages within C. megarhyncha. Genetic lineages were found within continuous lowland habitat or on smaller islands, but all individuals within clades were not necessarily structured by predicted biogeographic barriers. There was some evidence of isolation by distance and potential founder-effects. Mitochondrial DNA sequence divergence among lineages was at a level often observed among different species or even genera of birds (5-11%), suggesting lineages within regions have been isolated for long periods of time. When topographical barriers were associated with divergence patterns, the estimated divergence date for the clade coincided with the estimated time of barrier formation. We also found that dispersal distance and range size are positively correlated across lineages. Evidence from this research suggests that different phylogeographic mechanisms concurrently structure lineages of C. megarhyncha and are not mutually exclusive. These lineages are a result of evolutionary forces acting at different temporal and spatial scales concordant with New Guinea's geological history.
Data from: Non-breeding range size predicts the magnitude of population trends in trans-Saharan migratory passerine birds
Understanding why populations of some migratory species show a directional change over time, i.e. increase or decrease, while others do not, remains a challenge for ecological research. One possible explanation is that species with smaller non-breeding ranges may have more pronounced directional population trends, and their populations are thus more sensitive to the variation in environmental conditions in their non-breeding quarters. According to the serial residency hypothesis, this sensitivity should lead to higher magnitudes (i.e. absolute values) of population trends for species with smaller non-breeding ranges, with the direction of trend being either positive or negative depending on the nature of the environmental change. We tested this hypothesis using population trends over 2001–2012 for 36 sub-Saharan migratory passerine birds breeding in Europe. Namely, we related the magnitude of the species' population trends to the size of their sub-Saharan non-breeding grounds, whilst controlling for factors including number of migration routes, non-breeding habitat niche and wetness, breeding habitat type and life-history strategy. The magnitude of species' population trends grew with decreasing absolute size of sub-Saharan non-breeding ranges, and this result remained significant when non-breeding range size was expressed relative to the size of the breeding range. After repeating the analysis with the trend direction, the relationship with the non-breeding range size disappeared, indicating that both population decreases and increases are frequent amongst species with small non-breeding range sizes. Therefore, species with small non-breeding ranges are at a higher risk of population decline due to adverse factors such as habitat loss or climatic extremes, but their populations are also more likely to increase when suitable conditions appear. As non-breeding ranges may originate from stochasticity of non-breeding site selection in naive birds ('serial-residency' hypothesis), it is crucial to maintain a network of stable and resilient habitats over large areas of birds' non-breeding quarters.
Data and code for Heterogeneous selection on exploration behavior within and among West European populations of a passerine bird
<p><span>Heterogeneous selection is often proposed as a key mechanism maintaining repeatable behavioral variation ("animal personality") in wild populations. Previous studies largely focused on temporal variation in selection within single populations. The relative importance of spatial versus temporal variation remains unexplored, despite these processes having distinct effects on local adaptation. Using data from >3500 great tits (<i>Parus major</i>) and 35 nest box plots situated within five West-European populations monitored over 4-18 years, we show that selection on exploration behavior varies primarily spatially, across populations, and study plots within populations. Exploration was, simultaneously, selectively neutral in the average population and year. These findings imply that spatial variation in selection may represent a primary mechanism maintaining animal personalities, likely promoting the evolution of local adaptation, phenotype-dependent dispersal, and nonrandom settlement. Selection also varied within populations among years, which may counteract local adaptation. Our study underlines the importance of combining multiple spatiotemporal scales in the study of behavioral adaptation.</span></p>
Data from: A tale of two seasons: the link between seasonal migration and climatic niches in passerine birds.
<p class="MsoCommentText">The question of whether migratory birds track a specific climatic niche by seasonal movements has important implications for understanding the evolution of migration, the factors affecting species' distributions and the responses of migrants to climate change. Despite much research, previous studies of bird migration have produced mixed results. However, whether migrants track climate is only one half of the question, the other being why residents remain in the same geographic range year-round. We provide a literature overview and test the hypothesis of seasonal niche tracking by evaluating seasonal climatic niche overlap across 437 migratory and resident species from eight clades of passerine birds. Seasonal climatic niches were based on a new global dataset of breeding and non-breeding ranges. Overlap between climatic niches was quantified using ordination methods. We compared niche overlap of migratory species to two null expectations, 1) a scenario in which they do not migrate and 2) in comparison to the overlap experienced by closely related resident species, while controlling for breeding location and range size. Partly in accordance with the hypothesis of niche tracking, we found that the overlap of breeding vs. non-breeding climatic conditions in migratory species was greater than the overlap they would experience if they did not migrate. However, this was only true for migrants breeding outside the tropics and only relative to the overlap species would experience if they stayed in the breeding range year-round. In contrast to the hypothesis of niche tracking, migratory species experienced lower seasonal climatic niche overlap than resident species, with significant differences between tropical and non-tropical species. Our study suggests that in seasonal non-tropical environments migration away from the breeding range may serve to avoid seasonally harsh climate; however, different factors may drive seasonal movements in the climatically more stable tropical regions.</p>
ScienceDex guides
Understand access before you commit
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.