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203 results for “Bird Island”
Figure 2 in Life in the extreme environment: Structure and species richness of bird assemblages on Yuzhny Island of Novaya Zemlya, Russia
Figure 2. Structure of bird assemblages on Yuzhny Island of Novaya Zemlya. (A) Cluster analysis of bird assemblages. Ward's classification approach was applied to a Euclidean distance matrix, which was calculated based on bird species abundances (categorical estimations by using a five-point logarithmic scale). (B)-(C) Histograms of the distribution of bird ecological groups (number of species in each group) over the range of habitats (B) and over relative occurrence of each species through habitats (C).
Fig. 2 in A taxonomic and conservation re-appraisal of all the birds on the island of Nias
Fig. 2. Sonograms of typical calls of the Crested Serpent Eagle Spilornis cheela. a, b, four-note and single-note calls, respectively, of asturinus from Onolimbu (Xeno-Canto accession: XC482238, XC482239; recordist: Frank E. Rheindt); c, four-note call of malayensis from Sungai Menyala Forest Reserve, Malaysia (Xeno-Canto accession: XC89521; recordist: Frank Lambert); d, single-note call of malayensis from Petaling, Selangor, Malaysia (Xeno-Canto accession: XC447920; recordist: Ding Li Yong).
Figure 7 from: Han Y-D, Mironov SV, Kim J-H, Min G-S (2021) Feather mites (Acariformes, Astigmata) from marine birds of the Barton Peninsula (King George Island, Antarctica), with descriptions of two new species. ZooKeys 1061: 109-130. https://doi.org/10.3897/zookeys.1061.71212
Figure 7 Ingrassia chionis sp. nov., legs A tibia and tarsus I of male B tibia and tarsus II of male C tibia and tarsus III of male D tibia and tarsus IV of male E tibia and tarsus III of female F tibia and tarsus IV of female.
Figure 4 from: Han Y-D, Mironov SV, Kim J-H, Min G-S (2021) Feather mites (Acariformes, Astigmata) from marine birds of the Barton Peninsula (King George Island, Antarctica), with descriptions of two new species. ZooKeys 1061: 109-130. https://doi.org/10.3897/zookeys.1061.71212
Figure 4 Alloptes species A–CAlloptes (Sternalloptes) antarcticus sp. nov. D–FA. (S.) catharactiA, D prodorsal shield of males B, E humeral shield of males C, F opisthosomal lobes of females.
Figure 3 from: Han Y-D, Mironov SV, Kim J-H, Min G-S (2021) Feather mites (Acariformes, Astigmata) from marine birds of the Barton Peninsula (King George Island, Antarctica), with descriptions of two new species. ZooKeys 1061: 109-130. https://doi.org/10.3897/zookeys.1061.71212
Figure 3 Alloptes (Sternalloptes) antarcticus sp. nov., details A opisthosoma of male, dorsal view B leg I of male C leg II of male D leg III of male E leg IV of male F leg III of female G leg IV of female.
Breeding and feeding habitat selection by an island endemic bird may increase its vulnerability to climate change
<p>Characterising patterns of habitat use is an important first step for effective conservation planning. Species restricted to low-lying islands are at greatest risk from climate change-related sea level rise, and requirements for breeding and foraging habitat may determine their risk from tidal inundation. The endangered Micronesian Scrubfowl (<i>Megapodius laperouse senex</i>) is a model species for understanding these impacts. This species faces the cumulative challenges of tourist visitation, invasive species, and rising sea levels, yet little is understood about its habitat use in the Rock Islands Southern Lagoon Conservation Area (RISL) of Palau. We studied the habitat requirements of this mound-nesting scrubfowl as a representative of a group of birds considered highly vulnerable to climate change. Analysis of 15 habitat variables at 24 incubation mounds and 26 randomly chosen sites indicated that scrubfowl selected incubation sites that were close to shore, contained large trees, and exhibited greater canopy heights than the surrounding forest. Birds preferentially built mounds at the base of large ironwood trees (<i>Casuarina</i> <i>equisetifolia</i>) but selected sites with significantly more breadfruit trees (<i>Artocarpus mariannensis</i>) than random. Scrubfowl foraged in a non-preferential manner, making use of all littoral strand forest habitat. Direct anthropogenic habitat loss is not a major threat to scrubfowl in the RISL but their breeding habitat is highly vulnerable to climate change-driven sea level rise.</p>
Evolution of vocal performance and song complexity in island birds
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An island-hopping bird reveals how founder events shape genome-wide divergence
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Data from: A new framework for investigating biotic homogenization and exploring future trajectories: oceanic island plant and bird assemblages as a case study
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Data from: The effect of trait type and strength of selection on heritability and evolvability in an island bird population
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Breeding and feeding habitat selection by an island endemic bird may increase its vulnerability to climate change
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Data from: Genetic and phenotypic divergence in an island bird: isolation by distance, by colonisation or by adaptation?
Discerning the relative roles of adaptive and non-adaptive processes in generating differences among populations and species, as well as how these processes interact, are fundamental aims in biology. Both genetic and phenotypic divergence across populations can be the product of limited dispersal and gradual genetic drift across populations (isolation by distance), of colonisation history and founder effects (isolation by colonisation) or of adaptation to different environments preventing migration between populations (isolation by adaptation). Here we attempt to differentiate between these processes using island populations of Berthelot's pipit (Anthus berthelotii), a passerine bird endemic to three Atlantic archipelagos. Using microsatellite markers and approximate Bayesian computation, we reveal that the northwards colonisation of this species ca 8,500 years ago resulted in genetic bottlenecks in the colonised archipelagos. We then show that high levels of genetic structure exist across archipelagos, and that these are consistent with a pattern of isolation by colonisation, but not with isolation by distance or adaptation. Finally, we show that substantial morphological divergence also exists and that this is strongly concordant with patterns of genetic structure and bottleneck history, but not with environmental differences or geographic distance. Overall our data suggest that founder effects are responsible for both genetic and phenotypic changes across archipelagos. Our findings provide a rare example of how founder effects can persist over evolutionary timescales, and suggest that they may play an important role in the early stages of speciation.
Figure 1 from: Han Y-D, Mironov SV, Kim J-H, Min G-S (2021) Feather mites (Acariformes, Astigmata) from marine birds of the Barton Peninsula (King George Island, Antarctica), with descriptions of two new species. ZooKeys 1061: 109-130. https://doi.org/10.3897/zookeys.1061.71212
Figure 1 Alloptes (Sternalloptes) antarcticus sp. nov., male A dorsal view B ventral view.
Figure 2 from: Han Y-D, Mironov SV, Kim J-H, Min G-S (2021) Feather mites (Acariformes, Astigmata) from marine birds of the Barton Peninsula (King George Island, Antarctica), with descriptions of two new species. ZooKeys 1061: 109-130. https://doi.org/10.3897/zookeys.1061.71212
Figure 2 Alloptes (Sternalloptes) antarcticus sp. nov., female A dorsal view B ventral view.
Figure 6 from: Han Y-D, Mironov SV, Kim J-H, Min G-S (2021) Feather mites (Acariformes, Astigmata) from marine birds of the Barton Peninsula (King George Island, Antarctica), with descriptions of two new species. ZooKeys 1061: 109-130. https://doi.org/10.3897/zookeys.1061.71212
Figure 6 Ingrassia chionis sp. nov., female A dorsal view B ventral view.
Figure 5 from: Han Y-D, Mironov SV, Kim J-H, Min G-S (2021) Feather mites (Acariformes, Astigmata) from marine birds of the Barton Peninsula (King George Island, Antarctica), with descriptions of two new species. ZooKeys 1061: 109-130. https://doi.org/10.3897/zookeys.1061.71212
Figure 5 Ingrassia chionis sp. nov., male A dorsal view B ventral view.
Data from: Genetic and phenotypic divergence in an island bird: isolation by distance, by colonisation or by adaptation?
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XFP-056-2-3 Bird bone awl, Sanak Island, Alaska.
Bird bone awl, Sanak Island, Alaska. CAT# XFP-056-2-3 XFP-056 is a group of large house depressions on the south shore of Pauloff Harbor, Sanak Island, Alaska. Multiple radiocarbon dates place it from 300 CE to 800 CE, although the upper most levels may date to the 13th century. These artifacts were scanned with either a Faro Edge Arm or a Minolta Vivid 9i. Processed in Geomagic or Polyworks. 4-8 photos were used for texture in ZBrush. The Sanak Island artifacts are presented as a result of the research conducted under grants NSF 0326584, NSF 0508101, NSF 1139266, NSF 1321411. H. Maschner, Principal Investigator. Original digitizing work done at the IVL at Id. St. Univ. Subsequent processing completed at Global Digital Heritage. Fieldwork and analysis done with the permission and collaboration of the Pauloff Harbor Tribe and the Sanak Corporation Source: Objaverse 1.0 / Sketchfab
Bird Bone Awl, XFP-119, Sanak Island, Alaska
Bird Bone Awl, XFP-119, Sanak Island, Alaska. XFP-119-48. Likely 400-100 BCE. XFP-119 is a group of house and other depressions along the beach within the area of the Historic town of Sanak. There are at least three components dating approximately 400 BCE, 100BCE, and 1250-1410 CE. These artifacts were scanned with either a Faro Edge Arm or a Minolta Vivid 9i. Processed in Geomagic or Polyworks. 4-8 photos were used for texture in Geomagic Wrap. The Sanak Island artifacts are presented as a result of the research conducted under grants NSF 0326584, NSF 0508101, NSF 1139266, NSF 1321411. H. Maschner, Principal Investigator. Original digitizing work done at the IVL at Id. St. Univ. Subsequent processing completed at Global Digital Heritage. Fieldwork and analysis done with the permission and collaboration of the Pauloff Harbor Tribe and the Sanak Corporation. Source: Objaverse 1.0 / Sketchfab
Bird Bone Artifact, XFP-119, Sanak Island, AK
Carved and polished Bird Bone Artifact, XFP-119, Sanak Island, Alaska. XFP-119-78. Likely 400-100 BCE. XFP-119 is a group of house and other depressions along the beach within the area of the Historic town of Sanak. There are at least three components dating approximately 400 BCE, 100BCE, and 1250-1410 CE. These artifacts were scanned with either a Faro Edge Arm or a Minolta Vivid 9i. Processed in Geomagic or Polyworks. 4-8 photos were used for texture in Geomagic Wrap. The Sanak Island artifacts are presented as a result of the research conducted under grants NSF 0326584, NSF 0508101, NSF 1139266, NSF 1321411. H. Maschner, Principal Investigator. Original digitizing work done at the IVL at Id. St. Univ. Subsequent processing completed at Global Digital Heritage. Fieldwork and analysis done with the permission and collaboration of the Pauloff Harbor Tribe and the Sanak Corporation. Source: Objaverse 1.0 / Sketchfab
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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)
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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.