skip to main content
Visitante
Meu Espaço
Minha Conta
Sair
Identificação
This feature requires javascript
Tags
Revistas Eletrônicas (eJournals)
Livros Eletrônicos (eBooks)
Bases de Dados
Bibliotecas USP
Ajuda
Ajuda
Idioma:
Inglês
Espanhol
Português
This feature required javascript
This feature requires javascript
Primo Search
Busca Geral
Busca Geral
Acervo Físico
Acervo Físico
Produção Intelectual da USP
Produção USP
Search For:
Clear Search Box
Search in:
Busca Geral
Or select another collection:
Search in:
Busca Geral
Busca Avançada
Busca por Índices
This feature requires javascript
This feature requires javascript
Costs, constraints and sexual trait elaboration
Podos, Jeffrey
Animal behaviour, 2022-02, Vol.184, p.209-214
[Periódico revisado por pares]
Elsevier Ltd
Texto completo disponível
Citações
Citado por
Exibir Online
Detalhes
Resenhas & Tags
Mais Opções
Nº de Citações
This feature requires javascript
Enviar para
Adicionar ao Meu Espaço
Remover do Meu Espaço
E-mail (máximo 30 registros por vez)
Imprimir
Link permanente
Referência
EasyBib
EndNote
RefWorks
del.icio.us
Exportar RIS
Exportar BibTeX
This feature requires javascript
Título:
Costs, constraints and sexual trait elaboration
Autor:
Podos, Jeffrey
Assuntos:
constraint
;
cost
;
handicap signal
;
index signal
;
sexual selection
;
sexual trait
É parte de:
Animal behaviour, 2022-02, Vol.184, p.209-214
Descrição:
Much research on sexual selection focuses on evolutionary forces that drive sexual trait elaboration. Yet sexual traits are also shaped equally in their evolution by countervailing factors, namely costs and constraints, which curtail continued sexual trait elaboration. In this essay I consider the roles of these factors, particularly constraints, in curbing sexual trait expression and evolution. First, I review basic definitions of costs and constraints, with emphasis on the distinction between them. Second, I discuss operational strategies for identifying constraints on sexual traits, emphasizing the value of studies on mechanisms that underlie sexual trait expression. Third, I offer new speculations regarding the relative roles of costs and constraints over evolutionary timescales. In particular, I suggest that (1) during initial stages of trait elaboration, costs play dominant roles as countervailing factors, (2) for systems in which trait elaboration proceeds, constraints become increasingly influential as a countervailing co-factor alongside costs and (3) for nature's most elaborate sexual traits, constraints emerge as the most dominant countervailing factor, yet never to the point where costs are eliminated. Finally, I apply this new speculative framework in re-evaluating definitions of two categories of sexual signals that are often regarded as hinging on costs and constraints: handicap signals and index signals. •I explore two factors that can limit sexual trait elaboration: costs and constraints.•I discuss operational strategies for identifying constraints on sexual traits.•I propose that costs and constraints interact in specific ways over evolutionary scales.•This proposal suggests a re-examination of handicap and index signal categories.
Editor:
Elsevier Ltd
Idioma:
Inglês
This feature requires javascript
This feature requires javascript
Voltar para lista de resultados
This feature requires javascript
This feature requires javascript
Buscando em bases de dados remotas. Favor aguardar.
Buscando por
em
scope:(USP_PRODUCAO),scope:(USP_EBOOKS),scope:("PRIMO"),scope:(USP),scope:(USP_EREVISTAS),scope:(USP_FISICO),primo_central_multiple_fe
Mostrar o que foi encontrado até o momento
This feature requires javascript
This feature requires javascript