科创中国

Hard to fly the nest: A study of body condition and plumage quality in house sparrow fledglings

原文链接：万方

• 作者：

  Charlene LELOUTRE Alice GOUZERH Frederic ANGELIER

• 摘要：

  Contrary?to?the?nestling?phase,?the?post-fledging?phase?has?been?less?studied?probably?because?it?is?challenging?to?follow?the?chicks?after?they?fledge.?However,?this?phase?is?crucial?to?consider?when?focusing?on?the?life?cycle?of?individuals?because?it?is?associated?with?new?demands:?After?leaving?the?nest,?individuals?have?to?find?their?own?food?and?cope?with?a?new?set?of?previously?unknown?stressors.?In?this?study,?we?aimed?at?better?understanding?how?energetically?demanding?the?post-ftedging?period?is?in?house?sparrows?Passer?domesticus?by?measuring?several?indices?of?a?fledgling's?state?(body?condition,?fat?and?muscle?scores?and?plumage?quality).?If?the?energetic?demands?of?the?post-fledging?period?are?greater?than?those?of?the?adult?life,?we?predicted?that?fledglings?should?be?in?lower?condition?and?should?have?a?plumage?of?lower?quality?relative?to?adults.?Supporting?this?prediction,?the?condition?and?the?plumage?of?fledglings?differed?dramatically?from?those?of?adults.?Interestingly,?this?difference?disappeared?in?autumn.?Overall,?our?results?suggest?that?the?post-fledging?period?is?probably?one?of?the?most?energetically?demanding?of?the?life?cycle?in?this?species.?Supporting?this?idea,?the?resighting?probability?of?fledglings?was?lower?relative?to?adults.?However,?resighting?probability?depends?on?many?factors?(mortality,?dispersal,?habitat?use?and?behaviours)?and?future?studies?are?necessary?to?tease?apart?their?relative?importance?in?determining?resighting?probability?[Current?Zoology?60?(4):?449-459,?2014].

• 关键词：

  身体状况 低质量 羽毛 麻雀 雏鸟 鸟巢 生命周期 栖息地利用

• 作者单位：

  Centre d'Etudes Biologiques de Chiz6, CNRS, F-79360 Villiers en Bois, France

• 基金项目：

  Acknowledgements At the CEBC, we thank S. Dano for her excellent technical assistance in molecular sexing. We thank two anonymous reviewers and Olivier Kriiger for helpful comments on the manuscripts. This research programme was supported by the CNRS and the Fyssen Foundation.

• 来源期刊：

  动物学报(英文版)

• 年，卷(期)：

  2014004