Nest-site Selection and Competition Coexistence of Horned Larks and Small Skylarks
We investigated nest-site characteristics and reproductive season changes of horned larks (Eremophila alpestris ) and small skylarks (Alauda gulgula ) during three periods from Apr.to Sep.in 2000-2002 at Haibei Alpine Meadow Ecosystem Research Station,the Chinese Academy of Sciences,in northern Qing...
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Kunming Institute of Zoology, Chinese Academy of Sciences
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ftunivtoronto:oai:localhost:1807/9294 2023-05-15T16:06:20+02:00 Nest-site Selection and Competition Coexistence of Horned Larks and Small Skylarks Liang Zhao Xiao-ai Zhang 2004-12-31 237655 bytes application/pdf http://hdl.handle.net/1807/9294 http://www.bioline.org.br/abstract?id=zr04036 cn en_US chi eng Kunming Institute of Zoology, Chinese Academy of Sciences http://www.kiz.ac.cn; http://www.bioline.org.br/zr http://www.bioline.org.br/abstract?id=zr04036 Zoological Research (ISSN: 0254-5853) Vol 25 Num 3 http://hdl.handle.net/1807/9294 Copyright 2004 Kunming Institute of Zoology, the Chinese Academy of Sciences Eremophila alpestris Alauda gulgula Nest-site selection Nest predation; Thermal consideration;Competition; Coexistence Article 2004 ftunivtoronto 2020-06-17T11:09:45Z We investigated nest-site characteristics and reproductive season changes of horned larks (Eremophila alpestris ) and small skylarks (Alauda gulgula ) during three periods from Apr.to Sep.in 2000-2002 at Haibei Alpine Meadow Ecosystem Research Station,the Chinese Academy of Sciences,in northern Qinghai Province.Nests of horned lark (n=27) and small skylark (n=43) were used to eximined nest-site characteristics.We used stable isotopes to determine the dietary contributions ratio of raise nestling,and compare nest-site characteristics and overlap degree of diet of horned lark and small skylark.The result shown:1)there was significantly difference between the exoteric degrees of nests in horned lark and small skylark (P<0.01),which were 92.16% and 34.61%,respectively.2)the number of distance to nearest structural element of horned lark (0.07±0.26) was significantly lower than that of small skylark (2.57±1.19)(P<0.01).3)the vegetation height and the percentage of vegetation cover of nest-site of small skylark were significantly higher than those of horned lark(P<0.01).4)the food resource,reproductive season length and reproductive frequency largely overlapped in these two species.There is a balance between cost and benefit of horned lark and small skylark in nest-site selection.It is possible that predation and thermal consideration have guided the evolution of nest-site selection of two species,and the coexistence mechanism of them is nest-site differentiation. Article in Journal/Newspaper Eremophila alpestris University of Toronto: Research Repository T-Space |
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Open Polar |
collection |
University of Toronto: Research Repository T-Space |
op_collection_id |
ftunivtoronto |
language |
Chinese English |
topic |
Eremophila alpestris Alauda gulgula Nest-site selection Nest predation; Thermal consideration;Competition; Coexistence |
spellingShingle |
Eremophila alpestris Alauda gulgula Nest-site selection Nest predation; Thermal consideration;Competition; Coexistence Liang Zhao Xiao-ai Zhang Nest-site Selection and Competition Coexistence of Horned Larks and Small Skylarks |
topic_facet |
Eremophila alpestris Alauda gulgula Nest-site selection Nest predation; Thermal consideration;Competition; Coexistence |
description |
We investigated nest-site characteristics and reproductive season changes of horned larks (Eremophila alpestris ) and small skylarks (Alauda gulgula ) during three periods from Apr.to Sep.in 2000-2002 at Haibei Alpine Meadow Ecosystem Research Station,the Chinese Academy of Sciences,in northern Qinghai Province.Nests of horned lark (n=27) and small skylark (n=43) were used to eximined nest-site characteristics.We used stable isotopes to determine the dietary contributions ratio of raise nestling,and compare nest-site characteristics and overlap degree of diet of horned lark and small skylark.The result shown:1)there was significantly difference between the exoteric degrees of nests in horned lark and small skylark (P<0.01),which were 92.16% and 34.61%,respectively.2)the number of distance to nearest structural element of horned lark (0.07±0.26) was significantly lower than that of small skylark (2.57±1.19)(P<0.01).3)the vegetation height and the percentage of vegetation cover of nest-site of small skylark were significantly higher than those of horned lark(P<0.01).4)the food resource,reproductive season length and reproductive frequency largely overlapped in these two species.There is a balance between cost and benefit of horned lark and small skylark in nest-site selection.It is possible that predation and thermal consideration have guided the evolution of nest-site selection of two species,and the coexistence mechanism of them is nest-site differentiation. |
format |
Article in Journal/Newspaper |
author |
Liang Zhao Xiao-ai Zhang |
author_facet |
Liang Zhao Xiao-ai Zhang |
author_sort |
Liang Zhao |
title |
Nest-site Selection and Competition Coexistence of Horned Larks and Small Skylarks |
title_short |
Nest-site Selection and Competition Coexistence of Horned Larks and Small Skylarks |
title_full |
Nest-site Selection and Competition Coexistence of Horned Larks and Small Skylarks |
title_fullStr |
Nest-site Selection and Competition Coexistence of Horned Larks and Small Skylarks |
title_full_unstemmed |
Nest-site Selection and Competition Coexistence of Horned Larks and Small Skylarks |
title_sort |
nest-site selection and competition coexistence of horned larks and small skylarks |
publisher |
Kunming Institute of Zoology, Chinese Academy of Sciences |
publishDate |
2004 |
url |
http://hdl.handle.net/1807/9294 http://www.bioline.org.br/abstract?id=zr04036 |
genre |
Eremophila alpestris |
genre_facet |
Eremophila alpestris |
op_relation |
http://www.kiz.ac.cn; http://www.bioline.org.br/zr http://www.bioline.org.br/abstract?id=zr04036 Zoological Research (ISSN: 0254-5853) Vol 25 Num 3 http://hdl.handle.net/1807/9294 |
op_rights |
Copyright 2004 Kunming Institute of Zoology, the Chinese Academy of Sciences |
_version_ |
1766402230945054720 |