Song sparrows Melospiza melodia have a home-field advantage in defending against sympatric malarial parasites
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چکیده
منابع مشابه
Song sparrows Melospiza melodia have a home-field advantage in defending against sympatric malarial parasites
Hosts and parasites interact on both evolutionary and ecological timescales. The outcome of these interactions, specifically whether hosts are more resistant to their local parasites (sympatric) than to parasites from another location (allopatric), is likely to affect the spread of infectious disease and the fitness consequences of host dispersal. We conducted a cross-infection experiment to de...
متن کاملSong repertoire size predicts initial mating success in male song sparrows, Melospiza melodia
Male song sparrows sing repertoires of 4–13 distinct song types and have proved a valuable model for testing hypotheses concerning the function and evolution of song complexity. Captive female song sparrows solicit more copulations in response to playback of larger repertoires, yet it remains unclear whether male repertoire size influences female mate choice in natural situations. We used long-...
متن کاملLocal song elements indicate local genotypes and predict physiological condition in song sparrows Melospiza melodia.
Geographical variation in birdsong is taxonomically widespread and behaviourally salient, with females often preferring local over non-local song. However, the benefits associated with this preference remain poorly understood. One potential explanation is that song may reflect a male's place of origin and thus allow females to obtain genes well adapted to the local environment. We studied natur...
متن کاملFitness correlates of song repertoire size in free-living song sparrows (Melospiza melodia).
Models of sexual selection propose that exaggerated secondary sexual ornaments indicate a male's own fitness and the fitness of his offspring. These hypotheses have rarely been thoroughly tested in free-living individuals because overall fitness, as opposed to fitness components, is difficult to measure. We used 20 years of data from song sparrows (Melospiza melodia) inhabiting Mandarte Island,...
متن کاملPartial song matching in an eastern population of song sparrows, Melospiza melodia
One hypothesis for the function of vocal repertoires in songbirds is that singing multiple song types facilitates song matching, a behaviour in which one male replies to a rival’s song with a song of the same type. In eastern populations of song sparrows, low levels of whole song sharing restrict opportunities for matching of entire song types. A male in this population might still match a neig...
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ژورنال
عنوان ژورنال: Royal Society Open Science
سال: 2016
ISSN: 2054-5703
DOI: 10.1098/rsos.160216