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1,140 results for “down feathers”
FIGURE 10 in Feather mites of the subfamily Pterodectinae (Acariformes: Proctophyllodidae) from passerines and kingfishers in Canada
FIGURE 10. Amerodectes pheucticus sp. n., details. A—opisthosoma of male, ventral view, B, C—legs I, II of male, respectively, D, E—tibiae and tarsi III, IV of male, respectively, F—tibia and tarsus IV of female, G—spermatheca and spermaducts.
FIGURE 13 in Feather mites of the subfamily Pterodectinae (Acariformes: Proctophyllodidae) from passerines and kingfishers in Canada
FIGURE 13. Amerodectes tiffanyluiae sp. n., details. A—opisthosoma of male, ventral view, B, C—legs I, II of male, respectively, D, E—tibiae and tarsi III, IV of male, respectively, F—tibia and tarsus IV of female, G—spermatheca and spermaducts.
FIGURE 7 in Feather mites of the subfamily Pterodectinae (Acariformes: Proctophyllodidae) from passerines and kingfishers in Canada
FIGURE 7. Amerodectes icteri sp. n., details. A—opisthosoma of male, ventral view, B, C—legs I, II of male, respectively, D, E—tibiae and tarsi III, IV of male, respectively, F—tibia and tarsus IV of female, G—spermatheca and spermaducts.
FIGURE 4 in Feather mites of the subfamily Pterodectinae (Acariformes: Proctophyllodidae) from passerines and kingfishers in Canada
FIGURE 4. Amerodectes species, ventral view of male opisthosoma. A—Amerodectes xanthocephali; B—A. spizellae, C—A. dumetellae, D—A. hribari.
FIGURE 3 in Feather mites of the subfamily Pterodectinae (Acariformes: Proctophyllodidae) from passerines and kingfishers in Canada
FIGURE 3. Amerodectes tretiakae sp. n., details. A—opisthosoma of male, ventral view, B–D—legs I–III of male, respectively, E—tibia and tarsus IV of male, F—tibia and tarsus IV of female, G—spermatheca and spermaducts. Abbreviations: bs—basal sclerite of genital apparatus, co—copulatory opening, ga—genital arch, hs—head of spermatheca, os—opisthoventral shield, pd—primary spermaduct, sd—secondary spermaducts.
FIGURE 24 in Feather mites of the subfamily Pterodectinae (Acariformes: Proctophyllodidae) from passerines and kingfishers in Canada
FIGURE 24 Alaudicola eremophila sp. n., details. A—opisthosoma of male, ventral view, B–D—legs I–III of male, respectively, E—tibia and tarsus, IV of male, F—tibia and tarsus IV of female, G—spermatheca and spermaducts.
FIGURE 21. Metapterodectes toxostomae. A in Feather mites of the subfamily Pterodectinae (Acariformes: Proctophyllodidae) from passerines and kingfishers in Canada
FIGURE 21. Metapterodectes toxostomae. A—ventral view of male opisthosoma, B—ventral view of female opisthosoma. Abbreviation: ag—angular extension of opisthoventral shield.
FIGURE 20 in Feather mites of the subfamily Pterodectinae (Acariformes: Proctophyllodidae) from passerines and kingfishers in Canada
FIGURE 20. Tyrannidectes empidonicus sp. n., details. A—opisthosoma of male, ventral view, B–D—legs I–III of male, respectively, E—tibia and tarsus IV of male, F—tibia and tarsus IV of female, G—spermatheca and spermaducts.
FIGURE 27 in Feather mites of the subfamily Pterodectinae (Acariformes: Proctophyllodidae) from passerines and kingfishers in Canada
FIGURE 27. Proterothrix megaceryle sp. n., details. A—opisthosoma of male, ventral view, B–D—legs I–III of male, respectively, E—tibia and tarsus IV of male, F—tibia and tarsus IV of female, G—spermatheca and spermaducts.
FIGURE 1 in Description of larvae of the Feather Blenny, Hypsoblennius hentz (Pisces: Blenniidae), from New York Waters
FIGURE 1. Illustrations of Hypsoblennius hentz larvae from New York waters. The horizontal line equals 1 mm. A&B—yolk sac larvae. B1—ventral view of head of yolk sac larva showing pigment at cleithral symphysis, on roof of mouth (partially seen through the transparent lower jaw), and along the edge of premaxilla. C—preflexion larva. D&E—postflexion larvae. F— settled juvenile.
FIGURE 2 in Psittophagus hollandicus n. sp., a new feather mite species (Acariformes: Pterolichidae) from the cockatiel Nymphicus hollandicus (Kerr, 1792) (Psittaciformes: Cacatuidae) in Brazil
FIGURE 2: Psittophagus hollandicus n. sp. female: dorsal (A) and ventral (B) views
FIGURE 1 in Psittophagus hollandicus n. sp., a new feather mite species (Acariformes: Pterolichidae) from the cockatiel Nymphicus hollandicus (Kerr, 1792) (Psittaciformes: Cacatuidae) in Brazil
FIGURE 1: Psittophagus hollandicus n. sp. male: dorsal (A) and ventral (B) views.
FIGURE 5 in A new asymmetrical feather mite of the genus Michaelia Trouessart, 1884 (Astigmata: Freyanidae) from the Neotropical Cormorant, Phalacrocorax brasilianus (Pelecaniformes)
FIGURE 5: Michaelia neotropica n. sp., female: A – dorsal view, B – ventral view.
FIGURE 1 in A new asymmetrical feather mite of the genus Michaelia Trouessart, 1884 (Astigmata: Freyanidae) from the Neotropical Cormorant, Phalacrocorax brasilianus (Pelecaniformes)
FIGURE 1: Michaelia neotropica n. sp., heteromorphic male: A – dorsal view, B – ventral view.
FIGURE 3 in A new asymmetrical feather mite of the genus Michaelia Trouessart, 1884 (Astigmata: Freyanidae) from the Neotropical Cormorant, Phalacrocorax brasilianus (Pelecaniformes)
FIGURE 3: Michaelia neotropica n. sp., homeomorphic male: A – dorsal view, B – ventral view.
Experimental variation in the spatial deposition of trace metals in feathers revealed using synchrotron x-ray fluorescence
<p>Feathers can be used to investigate exposure to pollution in birds because they are a secondary route for the excretion of trace elements. Evidence based on analytical imaging and spectroscopy suggests that the spatial distribution of the essential trace element zinc within feathers is related to melanin pigmentation. However, our understanding of how trace elements are deposited into growing feathers is poor and has been hampered by a lack of analytical tools to examine the localization of trace elements within a feather. Here, synchrotron micro X-ray fluorescence spectroscopy was used to map zinc directly within the barb and barbules of lesser scaup (<em>Aythya affinis</em>) feathers grown after experimental increases in dietary zinc. The results showed distinct spatial variation in zinc within barbs and barbules, with higher levels observed in the latter. Furthermore, increases in dietary zinc were found to increase the relative levels of zinc throughout the barbules from the base to the tip of the feather. Finally, analysis of feather cross sections revealed that regions of the feather barb and barbules with higher melanosome density also contained higher levels of zinc. These results provide a more detailed understanding of zinc and melanosome arrangement within the feather barb and barbules. Moreover, these results provide further support for the use of feathers as a noninvasive tool to study exposure to trace elements and highlight the utility of X-ray spectroscopy in studies investigating impacts of a rapidly changing environment on<br> wild bird health. </p>
FIGURE 24 in New feather mites of the subfamily Pterodectinae (Acari: Proctophyllodidae) from passerines and woodpeckers (Aves: Passeriformes and Piciformes) in Vietnam
FIGURE 24. Picipterodectes sasiae sp. n., details. A—opisthosoma of male, ventral view, B–E—legs I–IV of male, respectively, F—head of spermatheca and spermaducts, G, H —legs III and IV of female.
FIGURE 18 in New feather mites of the subfamily Pterodectinae (Acari: Proctophyllodidae) from passerines and woodpeckers (Aves: Passeriformes and Piciformes) in Vietnam
FIGURE 18. Dolichodectes furcilobus sp. n., details. A—opisthosoma of male, ventral view, B–E—legs I–IV of male, respectively, F—head of spermatheca and spermaducts, G—femur and genu III of female, H—leg III of female.
FIGURE 21 in New feather mites of the subfamily Pterodectinae (Acari: Proctophyllodidae) from passerines and woodpeckers (Aves: Passeriformes and Piciformes) in Vietnam
FIGURE 21. Proterothrix alcippeae sp. n., details. A—opisthosoma of male, ventral view, B–E—legs I–IV of male, respectively, F—head of spermatheca and spermaducts, G—tarsus tibia and genu I of female, H—leg III of female, I—femur and genu IV of female.
FIGURE 27 in New feather mites of the subfamily Pterodectinae (Acari: Proctophyllodidae) from passerines and woodpeckers (Aves: Passeriformes and Piciformes) in Vietnam
FIGURE 27. Vireodectes erporni sp. n., details. A—opisthosoma of male, ventral view, B–E—legs I–IV of male, respectively, F—head of spermatheca and spermaducts, G, H —tarsi, tibiae and genua III, IV of female, respectively.
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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.