Mate choice by males in organisms that do not make obviously costly contributions to offspring should be expected where sperm production is limited and courtship time is finite. Although male guppies (Poecilia reticulata) contribute only sperm to their offspring, preliminary evidence points to male mate choice in this species. Thus, the hypothesis that male guppies choose their mates was investigated. Mate choice was measured by giving males a choice of different-sized females, using only visual cues. The data revealed that males preferred large females over small females whether they were presented singly, in pairs, or with a small female. This preference may arise because large females may produce larger broods
In internally fertilizing species male genitalia often show a higher degree of elaboration than requ...
Cryptic female choice (CFC) refers to female-mediated processes occurring during or after copulation...
In internally fertilizing species male genitalia often show a higher degree of elaboration than requ...
Mate choice by males in organisms that do not make obviously costly contributions to offspring shoul...
Based on the phenotype-linked fertility hypothesis, sexual selection should favour females that can ...
The phenotype-linked fertility hypothesis (PLFH) predicts that males with elaborated sexual ornament...
Males pay considerable reproductive costs in acquiring mates (precopulatory sexual selection) and in...
Previous work (Reynolds & Gross 1992) has demonstrated that mate choice enables female guppies, ...
Previous work (Reynolds & Gross 1992) has demonstrated that mate choice enables female guppies, ...
Males pay considerable reproductive costs in acquiring mates (precopulatory sexual selection) and in...
Although mate choice by males does occur in nature, our understanding of its importance in driving e...
Males are generally expected to be discriminating in their choice of mates when females vary in qual...
In polyandrous species, females may influence paternity by biasing sperm usage in favour of particul...
To test the relative importance of female choice, sneak copulation and male dominance as determinant...
Males vary in the degree to which they invest in mating. Several factors can explain this variation,...
In internally fertilizing species male genitalia often show a higher degree of elaboration than requ...
Cryptic female choice (CFC) refers to female-mediated processes occurring during or after copulation...
In internally fertilizing species male genitalia often show a higher degree of elaboration than requ...
Mate choice by males in organisms that do not make obviously costly contributions to offspring shoul...
Based on the phenotype-linked fertility hypothesis, sexual selection should favour females that can ...
The phenotype-linked fertility hypothesis (PLFH) predicts that males with elaborated sexual ornament...
Males pay considerable reproductive costs in acquiring mates (precopulatory sexual selection) and in...
Previous work (Reynolds & Gross 1992) has demonstrated that mate choice enables female guppies, ...
Previous work (Reynolds & Gross 1992) has demonstrated that mate choice enables female guppies, ...
Males pay considerable reproductive costs in acquiring mates (precopulatory sexual selection) and in...
Although mate choice by males does occur in nature, our understanding of its importance in driving e...
Males are generally expected to be discriminating in their choice of mates when females vary in qual...
In polyandrous species, females may influence paternity by biasing sperm usage in favour of particul...
To test the relative importance of female choice, sneak copulation and male dominance as determinant...
Males vary in the degree to which they invest in mating. Several factors can explain this variation,...
In internally fertilizing species male genitalia often show a higher degree of elaboration than requ...
Cryptic female choice (CFC) refers to female-mediated processes occurring during or after copulation...
In internally fertilizing species male genitalia often show a higher degree of elaboration than requ...