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| 1 | Morphology, flight performance, and water crossing tendencies of Afro-Palearctic raptors during migration显示文摘 | Nicolantonio AGOSTINI Michele PANUCCIO Cristian PASQUARETTA | 2015 | Current Zoology2015，61，6： | 4 |
| 2 | Basal metabolic rate in free-living tropical birds: the influence of phylogenetic, behavioral, and ecological factors显示文摘 | Andrey BUSHUEV Oleg TOLSTENKOV Ekaterina ZUBKOVA Eugenia SOLOVYEVA Anvar KERIMOV | 2018 | Current Zoology2018，64，1： | 1 |
| 3 | Exploring the adjustment to parasite pressure hypothesis: differences in uropygial gland volume and haemosporidian infection in palearctic and neotropical birds显示文摘Parasites are globally widespread pathogenic organisms,which impose im portant selective forces upon their hosts.Thus,in accordance with the A djustm ent to parasite pressure hypothesis,it is expected that defenses among hosts vary relative to the selective pressure imposed by parasites.According to the latitudinal gradient in diversity,species richness and abundance of parasites peak near the equator.The uropygial gland is an im portant defensive exocrine gland against pathogens in birds.Size of the uropygial gland has been proposed to vary among species of birds because of divergent selection by pathogens on their hosts.Therefore,we should expect that bird species from the tropics should have relatively larger uropygial glands for their body size than species from higher latitudes.However,this hypothesis has not yet been explored.Here,we analyze the size of the uropygial gland of 1719 individual birds belonging to 36 bird species from 3 Neotropical(Peru)and 3 temperate areas(Spain).Relative uropygial gland volum e was 12.52%larger in bird species from the tropics than from temperate areas.This finding is consistent w ith the relative size of this defensive organ being driven by selective pressures imposed by parasites.We also explored the potential role of this gland as a means of avoiding haemosporidian infection,showing that species with large uropygial glands for their body size tend to have lower mean prevalence of haemosporidian infection,regardless o f their geographical origin.This result provides additional support for the assum ption that secretions from the uropygial gland reduce the likelihood of becoming infected with haemosporidians. | Sergio MAGALLANES Anders Pape MøLLER Charlene LUJÁN-VEGA Esteban FONG Daniel VECCO Wendy FLORES-SAAVEDRA Luz GARCÍA-LONGORIAA Florentino DE LOPE JoséA.IANNACONE Alfonso MARZAL | 2021 | Current Zoology2021，67，2： | 0 |
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