Female reproductive tactics in a sex-role reversed pipefish: scanning for male quality and number

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Female reproductive tactics in a sex-role reversed pipefish: scanning for male quality and number

K. Silva, V.C. Almada, M.N. Vieira, and N.M. Monteiro Departamento de Zoologia e Antropologia, Faculdade de Ciências da Universidade do Porto, Prac xa Gomes Teixeira 4099-002, Portugal, Laboratório de Ecologia, Centro Interdisciplinar de Investigac xão Marinha e Ambiental, Rua dos Bragas 177, 4050-123 Porto, Portugal, Instituto Superior de Psicologia Aplicada, Rua Jardim do Tabaco 34, 1149-041 ...

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Sexual selection on female ornaments in the sex-role-reversed Gulf pipefish (Syngnathus scovelli).

Understanding how selection acts on traits individually and in combination is an important step in deciphering the mechanisms driving evolutionary change, but for most species, and especially those in which sexual selection acts more strongly on females than on males, we have no estimates of selection coefficients pertaining to the multivariate sexually selected phenotype. Here, we use a labora...

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Mate quality influences multiple maternity in the sex-role-reversed pipefish Syngnathus typhle

In the pipefish Syngnathus typhle, pregnant males provide all parental care. Females are able to produce more eggs than males can brood, and consequently females compete more intensely for mates than do males, a phenomenon defined as sex-role reversal. As the genetic mating system influences the operation of sexual selection, we investigate variation in one phenotypic component of mate quality,...

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Sex Recognition via Chemical Cues in the Sex-Role-Reversed Gulf Pipefish (Syngnathus scovelli)

Mate choice is often based on multivariate suites of traits perceived in more than one sensory modality (Partan & Marler 2005). A variety of scenarios have recently been proposed to address how these complex sets of traits evolve (Candolin 2003; Hebets & Papaj 2005) and interact to elicit receiver responses (Rowe 1999; Partan & Marler 2005; Chenoweth & Blows 2006). Sex-role-reversed systems pro...

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Stronger Sexual Selection in Warmer Waters: The Case of a Sex Role Reversed Pipefish

In order to answer broader questions about sexual selection, one needs to measure selection on a wide array of phenotypic traits, simultaneously through space and time. Nevertheless, studies that simultaneously address temporal and spatial variation in reproduction are scarce. Here, we aimed to investigate the reproductive dynamics of a cold-water pipefish simultaneously through time (encompass...

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ژورنال

عنوان ژورنال: Behavioral Ecology

سال: 2009

ISSN: 1465-7279,1045-2249

DOI: 10.1093/beheco/arp058