Costly melanin ornaments: the importance of taxon?
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چکیده
منابع مشابه
The Dynamics of Honesty: Modelling the Growth of Costly, Sexually-Selected Ornaments
The handicap principle suggests that individuals of superior quality can more easily bear the cost of developing extravagant ornaments. Consequently, ornament size should provide reliable information about quality or condition. Previous models have largely ignored the process of ornament growth, focusing only on final ornament size. We model ornament growth schedules for individuals of differen...
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Elaborate secondary sexual traits, such as the ornamental plumage of birds, may be favored by female choice because they serve as honest indicators of male quality. Elaborate traits are thought to be honest signals because they are expensive to produce and increase predation risk. Here we investigate another potential cost of elaborate traits, i.e., the time and energy required to maintain them...
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Functional programmers from all horizons strive to use, and sometimes abuse, their favorite type system in order to capture the invariants of their programs. A widely-used tool in that trade consists in defining finely-indexed datatypes. Operationally, these types classify the programmer’s data, following the ML tradition. Logically, these types enforce the program invariants in a novel manner....
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6 Syntactic ornaments in the binary language 21 6.1 From ornaments to projection . . . . . . . . . . . . . . . . . . . . . . . . . . 24 6.2 Syntax of the binary language . . . . . . . . . . . . . . . . . . . . . . . . . . 25 6.3 Projection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 6.4 Datatype environment . . . . . . . . . . . . . . . . . . . . . . . . . . ....
متن کاملCarotenoid and melanin-based ornaments signal similar aspects of male quality in two populations of the common yellowthroat
aspects of male quality in two populations of the common yellowthroat Peter O. Dunn*, Julia C. Garvin, Linda A. Whittingham, Corey R. Freeman-Gallant and Dennis Hasselquist Department of Biological Sciences, University of Wisconsin-Milwaukee, Milwaukee, Wisconsin, 53201, USA; Department of Biology, Skidmore College, Saratoga Springs, New York 12866, USA; and Department of Animal Ecology, Ecolog...
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ژورنال
عنوان ژورنال: Functional Ecology
سال: 2006
ISSN: 0269-8463,1365-2435
DOI: 10.1111/j.1365-2435.2006.01090.x