SIGNIFICANCE OF SYMPATRY TO BEHAVIOR AND EVOLUTION OF GREAT PLAINS MEADOWLARKS
SIGNIFICANCE OF SYMPATRY TO BEHAVIOR AND EVOLUTION OF GREAT PLAINS MEADOWLARKS
复制标题
同情大平原草鹨的行为和进化的意义
DOI:
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发表时间:
1973
期刊:
影响因子:
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通讯作者:
S. Rohwer
中科院分区:
文献类型:
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作者:
S. Rohwer
Cases of interspecific territoriality are uncommon among birds that hold multipurpose breeding territories where they feed, mate and nest. Various authors (e.g., Simmons, 1951; Johnson, 1963; Orians and Willson, 1964) have noted that interspecific territories are likely to be maintained as a result of interspecific competition. Orians and Willson (1964) specifically comment that divergence in feeding habits sufficient for overlapping territories may be impossible when either the structure of the vegetation is simple, or when species are adapted to exploit the same stratified food sources in complex vegetation, or when other species are already exploiting similar resources in a diversified habitat. Johnson (1963) has proposed a hypothetical scheme for the origin of interspecific territoriality which is based on the process of geographic speciation. He notes that whether or not interspecific territories are defended depends upon the releasers that stimulate territorial defense. Species having similar vocal and behavioral signals of territory possession would not necessarily be expected to diverge in these characters when establishing secondary contact, even if their feeding habits were sufficiently different for coexistence. Orians and Willson (1964:737) seem to dismiss the possibility of such a fortuitous occurrence of interspecific territoriality by observing that the defense of a territory against individuals of other species demands increased expenditure of time and energy. However,