Links between male quality, male chemical signals, and female mate choice in Iberian Rock Lizards

2006 ◽  
Vol 20 (6) ◽  
pp. 1087-1096 ◽  
Author(s):  
J. MARTÍN ◽  
P. LÓPEZ
Keyword(s):  
Mate Choice ◽  
Female Mate Choice ◽  
Chemical Signals ◽  
Male Quality ◽  
Female Mate

scholarly journals Dual functions of a melanin-based ornament in the common yellowthroat

2005 ◽  
Vol 272 (1568) ◽  
pp. 1121-1127 ◽  
Author(s):  
Scott A Tarof ◽  
Peter O Dunn ◽  
Linda A Whittingham
Keyword(s):  
Mate Choice ◽  
Female Choice ◽  
Female Mate Choice ◽  
Male Competition ◽  
Male Quality ◽  
Female Mate ◽  
Common Yellowthroat ◽  
Mask Size ◽  
The Common ◽  
Dual Functions

Melanin-based ornaments often function as signals in male–male competition, whereas carotenoid-based ornaments appear to be important in female mate choice. This difference in function is thought to occur because carotenoid pigments are more costly to produce than melanins and are thus more reliable indicators of male quality. We examined the role of melanin- and carotenoid-based ornaments in male–male competition and female choice in the common yellowthroat Geothlypis trichas , a sexually dichromatic passerine. Males display a black facial mask produced by melanin pigmentation and a bright yellow bib (throat, breast and belly) produced by carotenoid pigmentation. In controlled aviary experiments, mask size was the best predictor of both male–male competition and female mate choice, and, therefore, mask size may be regarded as an ornament of dual function. These dual functions may help to maintain the reliability of mask size as an indicator of male quality, despite the potentially low cost of production. The size of the bib was unrelated to male–male competition or female choice, but there was a tendency for females to prefer males with more colourful bibs. We propose that the black mask is important in competition for territories with other males and for attracting females. Our results highlight the need for more studies of the mechanisms of sexual selection in species with ornaments composed of different pigment types.

Female mate choice by chemical signals in a semi-terrestrial crab

2014 ◽  
Vol 85 ◽  
pp. 300-307 ◽  
Author(s):  
María Paz Sal Moyano ◽  
Paola Silva ◽  
Tomás Luppi ◽  
María Andrea Gavio
Keyword(s):  
Mate Choice ◽  
Female Mate Choice ◽  
Chemical Signals ◽  
Female Mate

scholarly journals Female mate choice based on pheromone content may inhibit reproductive isolation between distinct populations of Iberian wall lizards

2013 ◽  
Vol 59 (2) ◽  
pp. 210-220 ◽  
Author(s):  
Marianne Gabirot ◽  
Pilar López ◽  
José MartÍn
Keyword(s):  
Mate Choice ◽  
Reproductive Isolation ◽  
Female Mate Choice ◽  
Chemical Signals ◽  
Female Mate ◽  
Dependent Signal ◽  
Podarcis Hispanica ◽  
Males And Females ◽  
Male Signals ◽  
A Current

Abstract The Iberian wall lizard Podarcis hispanica forms part of a species complex with several morphologically and genetically distinct types and populations, which may or may not be reproductively isolated. We analyzed whether female mate choice based on males’ chemical signals may contribute to a current pre-mating reproductive isolation between two distinct populations of P. hispanica from central Spain. We experimentally examined whether females choose to establish territories on areas scent-marked by males of their own population, versus areas marked by males of the other population. Results showed that females did not prefer scent-marks of males from their own population. In contrast, females seemed to attend mostly to among-individual variation in males’ pheromones that did not differ between populations. Finally, to test for strong premating reproductive isolation, we staged intersexual encounters between males and females. The population of origin of males and females did not affect the probability nor the duration of copulations. We suggest that the different environmental conditions in each population might be selecting for different morphologies and different chemical signals of males that maximize efficiency of communication in each environment. However, females in both populations based mate choice on a similar condition-dependent signal of males. Thus, male signals and female mate choice criteria could be precluding premating reproductive isolation between these phenotypically “distinct” populations.

Female Choice in Middendorff's Grasshopper-Warbler (Locustella Ochotensis)

The Auk ◽  
1986 ◽  
Vol 103 (4) ◽  
pp. 694-700 ◽  
Author(s):  
Hisashi Nagata
Keyword(s):  
Mate Choice ◽  
Female Choice ◽  
Morphological Characteristics ◽  
Female Mate Choice ◽  
Food Abundance ◽  
Territory Size ◽  
Territory Quality ◽  
Female Mate ◽  
Nest Sites ◽  
Grasshopper Warbler

Abstract Morphological and territorial factors that influence female mate choice were examined in the monogamous Middendorff's Grasshopper-Warbler (Locustella ochotensis) on an islet near Fukuoka, Japan. I assumed that pairing date corresponded with female mate choice. Pairing date was correlated with both territory size and food abundance but was not correlated with selected morphological characteristics of males. Territorial quality was assumed to be correlated with territory size because preferable food resources and nest sites were distributed randomly. I conclude that female mate choice was influenced by territory quality rather than by the morphological characteristics of males.

scholarly journals The fruitless gene affects female receptivity and species isolation

2020 ◽  
Vol 287 (1923) ◽  
pp. 20192765 ◽  
Author(s):  
Tabashir Chowdhury ◽  
Ryan M. Calhoun ◽  
Katrina Bruch ◽  
Amanda J. Moehring
Keyword(s):  
Mate Choice ◽  
Critical Role ◽  
Sensory Modality ◽  
Female Mate Choice ◽  
Neural Basis ◽  
Female Receptivity ◽  
Female Mate ◽  
Multiple Transcripts ◽  
Female Behaviour ◽  
Substrate Vibrations

Female mate rejection acts as a major selective force within species, and can serve as a reproductive barrier between species. In spite of its critical role in fitness and reproduction, surprisingly little is known about the genetic or neural basis of variation in female mate choice. Here, we identify fruitless as a gene affecting female receptivity within Drosophila melanogaster , as well as female Drosophila simulans rejection of male D. melanogaster . Of the multiple transcripts this gene produces, by far the most widely studied is the sex-specifically spliced transcript involved in the sex determination pathway. However, we find that female rejection behaviour is affected by a non-sex-specifically spliced fruitless transcript. This is the first implication of fruitless in female behaviour, and the first behavioural role identified for a fruitless non-sex-specifically spliced transcript. We found that this locus does not influence preferences via a single sensory modality, examining courtship song, antennal pheromone perception, or perception of substrate vibrations, and we conclude that fruitless influences mate choice via the integration of multiple signals or through another sensory modality.

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