Results 31 to 40 of about 246,696 (380)
Frontiers in Ecology and Evolution, 2020 The stem lineage relationships and early phenotypic evolution of Charadriiformes (shorebirds) and Gruiformes (rails, cranes, and allies) remain unresolved. It is still debated whether these clades are sister-taxa.
Grace Musser, Julia A. Clarke
doaj +1 more source
Using blood and feathers to investigate large-scale Hg contamination in Arctic seabirds: A review.
Environmental Research, 2019 Mercury (Hg), because of its deleterious effects on wildlife and its high concentrations in polar regions, has been widely studied in the Arctic. This provided important information regarding food web contamination, spatial and temporal trends of Hg in ...
C. Albert +3 more
semanticscholar +1 more source
Pattern of Post-Juvenile Moult in Common Snipe (Gallinago Gallinago) and Its Implications for Ageing of the Species [PDF]
, 2010 External ageing of Common Snipe (Gallinago gallinago) still engenders considerable problems. To improve precision of age determination on the basis of plumage characteristics a scheme of post-juvenile moult was investigated in approximately 1200 first ...
Janiszewski, Tomasz +3 more
core +2 more sources
Oviposition in the blood-sucking insect Rhodnius prolixus is modulated by host odors [PDF]
, 2015 Background: Triatomine bugs are blood-sucking insects, vectors of Chagas disease. Despite their importance, their oviposition behavior has received relatively little attention. Some triatomines including Rhodnius prolixus stick their eggs to a substrate.
Guerenstein, Pablo Gustavo +1 more
core +1 more source
Frontiers in Marine Science, 2022 Marine predators recovering from historic, commercial, over-harvesting can create conservation challenges when they prey on vulnerable species. Pinniped predation of seabirds presents one such challenge and identifying the source colonies experiencing ...
Sarah-Lena Reinhold +7 more
doaj +1 more source
A marker suitable for sex-typing birds from degraded samples [PDF]
, 2015 A new primer set was developed for sex-typing birds, Z37B. This primer set was designed to amplify alleles of small size to render it suitable for sex-typing degraded samples, including shed feathers.
Brekke, P +3 more
core +2 more sources
Effect of Repeated Gathering and Age on the Quality of Zatorska Goose Feathers
The Journal of Poultry Science, 2018 We investigated a reproductive flock of Zatorska geese. The birds were divided into four groups: three-year-old ganders (n=10), and one-, two-, and three-year-old layers (n=30).
Andrzej Ochrem +2 more
doaj +1 more source
Soft-tissue specimens from pre-European extinct birds of New Zealand [PDF]
, 2012 We provide the first complete review of soft tissue remains from New Zealand birds that became extinct prior to European settlement (c. AD 1800). These rare specimens allow insights into the anatomy and appearance of the birds that are not attainable ...
Fraser, C +4 more
core +2 more sources
The molecular evolution of feathers with direct evidence from fossils
Proceedings of the National Academy of Sciences of the United States of America, 2019 Significance During the dinosaur–bird transition, feathers of bird ancestors must have been molecularly modified to become biomechanically suitable for flight. We report molecular moieties in fossil feathers that shed light on that transition. Pennaceous
Yan-Hong Pan +15 more
semanticscholar +1 more source
Feather growth rate and mass in nearctic passerines with variablemigratory behavior and molt pattern [PDF]
, 2012 Bird species vary greatly in the duration of their annual complete feather molt. However, such variation is not well documented in birds from many biogeographic areas, which restricts our understanding of the diversification of molt strategies.
Barta Z. +8 more
core +2 more sources