Assortative mating also indicates that common crossbill Loxia curvirostra vocal types are species
نویسندگان
چکیده
منابع مشابه
The role of marker traits in the assortative mating within red crossbills, Loxia curvirostra complex.
We conducted mate choice experiments to determine whether differences in calls or bill morphology might influence assortative mating between call types of red crossbills (Loxia curvirostra complex) that have diverged in bill structure to specialize on different species of conifers. Females preferred males that gave calls that matched their own type, but did not prefer males that more closely ap...
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The question of whether sympatric speciation (i.e. reproductive isolation of populations with overlapping distributions) is a source of biodiversity has always been controversial. So far, mounting evidence from only a few species, for example African lacustrine cichlids, African widowbirds and phytophagous insects, supports the notion that it occurs in nature. In the latter two, host shifts can...
متن کاملSocial experience modifies behavioural responsiveness to a preferred vocal signal in red crossbills, Loxia curvirostra
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NB: A UK species action plan already exists for the Scottish Crossbill in the UK Biodiversity Action Plan. This document aims to put this information into a European framework. Reviews This action plan should be reviewed and updated every four years. An emergency review will be undertaken if sudden major environmental changes, liable to affect the population, occur within the species' range. Sh...
متن کاملAssortative mating without assortative preference.
Assortative mating--marriage of a man and a woman with similar social characteristics--is a commonly observed phenomenon. In the existing literature in both sociology and economics, this phenomenon has mainly been attributed to individuals' conscious preferences for assortative mating. In this paper, we show that patterns of assortative mating may arise from another structural source even if in...
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ژورنال
عنوان ژورنال: Journal of Avian Biology
سال: 2008
ISSN: 0908-8857,1600-048X
DOI: 10.1111/j.0908-8857.2008.04231.x