Exploring the adjustment to parasite pressure hypothesis: differences in uropygial gland volume and haemosporidian infection in palearctic and neotropical birds

作     者：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 Sergio MAGALLANES;Anders Pape M(φ)LLER;Charlene LUJ(A)N-VEGA;Esteban FONG;Daniel VECCO;Wendy FLORES-SAAVEDRA;Luz GARC(I)A-LONGORIAA;Florentino DE LOPE;José A.IANNACONE;Alfonso MARZAL

作者机构：Department of AnatomyCellular Biology and ZoologyUniversity of ExtremaduraAvda.de Elvas S/NBadajoz ES-06006Spain Ecologie Systématique EvolutionUniversitéParis-SudOrsay 91400France Key Laboratory for Biodiversity Science and Ecological Engineering of Ministry of EducationCollege of Life SciencesBeiing Normal UniversityBeiing 100875China Pharmacology and Toxicology Graduate GroupUniversity of CaliforniaDavisDavisCA 95616USA EverGreen Institute-San RafaelDistrito de IndianaLoreto 16200Perú Centro Urku de Estudios AmazónicosTarapoto 22202Perú Universidad Nacional Agraria La MolinaLima 15024Perú Molecular Ecology and Evolution LabDepartment of BiologyLund UniversityLund 22100Sweden Laboratorio de Ingenieria AmbientalUniversidad Cientifica del Sur-Villa el SalvadorLima 15067Perú Laboratorio de InvertebradosUniversidad Ricardo PalmaSantiago de Surco 15039Perú 

出 版 物：《Current Zoology》 (动物学报（英文版）)

年 卷 期：2021年第67卷第2期

页      面：147-156页

核心收录：

学科分类：0710[理学-生物学] 07[理学] 071002[理学-动物学] 

基　　金：This work was supported by the Spanish Ministry of Economy and Competitiveness research projects[grant CGL2015-64650P] Junta de Extremadura[grant IB16121] S.M.and A.M.were supported by a Ph.D.grant from the Ministry of Economy and Competition of Spain and a mobility grant of Junta de Extremadura(129/2015),respectively.L.G.-L.was supported by the Junta de Extremadura[PO17024,Post-Doc grant] 

主　　题：adjustment to parasite pressure hypothesis malaria Neotropical region preen oil temperate region 

摘      要：Parasites are globally widespread pathogenic organisms,which impose im portant selective forces upon their ***,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 *** to the latitudinal gradient in diversity,species richness and abundance of parasites peak near the *** uropygial gland is an im portant defensive exocrine gland against pathogens in *** of the uropygial gland has been proposed to vary among species of birds because of divergent selection by pathogens on their ***,we should expect that bird species from the tropics should have relatively larger uropygial glands for their body size than species from higher ***,this hypothesis has not yet been ***,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 *** finding is consistent w ith the relative size of this defensive organ being driven by selective pressures imposed by *** 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 *** result provides additional support for the assum ption that secretions from the uropygial gland reduce the likelihood of becoming infected with haemosporidians.