Journal ArticleDOI
Possible decision-making preadaptations in the molly Poecilia sphenops
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The willingness of females to choose traits in a species without such traits or evident need or opportunity for female choice in the wild is remarkable, suggesting that choice behavior can be latent in aspecies, and may direct or bias the development of behavioral preferences.Abstract:
In many species females choose a mate from among several available males; in other species, the social system provides no apparent opportunity for making a decision among alternative suitors, and decision-making capacity is assumed to be minimal. The origins, bases, and logic of female mate choices are contentious questions with important cognitive implications. Female short-finned mollies, Poecilia sphenops, have never been observed to choose mates in the wild, where instead a male-contest social system prevails. Nevertheless they readily choose between models of males in the laboratory. Some of their decisions anticipate features found in males in more recently evolved species where the social system permits female choice. The willingness of females to choose traits in a species without such traits or evident need or opportunity for female choice in the wild is remarkable. These observations suggest that choice behavior can be latent in a species, and may direct or bias the development of behavioral preferences.read more
Citations
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Journal ArticleDOI
Female mating preferences in blind cave tetras Astyanax fasciatus (Characidae, Teleostei)
TL;DR: The evolution of the female preference for large male body size within different populations of this species, either surface- or cave-dwelling, is examined.
Journal ArticleDOI
Cardiotoxicity Associated with Nicotinamide Phosphoribosyltransferase Inhibitors in Rodents and in Rat and Human-Derived Cells Lines.
Dinah Misner,M. A. Kauss,Jatinder Singh,Hirdesh Uppal,A. Bruening-Wright,Bianca M. Liederer,Tori Lin,Bobbi McCray,Nghi La,Trung Nguyen,Deepak Sampath,Peter S. Dragovich,Thomas O'Brien,Tanja S. Zabka +13 more
TL;DR: The cardiac toxicity was interpreted as a functional effect leading to congestive heart failure, characterized by sudden death, thoracic and abdominal effusion, and myocardial degeneration, and this work strengthens the correlation between cardiomyocyte cell viability and functionality.
Journal ArticleDOI
Female choice linked to male dorsal fin height in a shortfin molly
TL;DR: It is found that females of a species in the latter group, Poecilia mexicana, were biased toward larger dorsal fins, suggesting that latent preference could be an important driver in trait evolution.
Journal ArticleDOI
Female Associative Behavior Accompanies Morphological Distinction in Two Panamanian Populations of the Molly Poecilia gilli (Kner)
TL;DR: It was found that females preferentially associated with local males but preferred neither local nor foreign females, and males exhibited no preference for females based on stream of origin.
References
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Book
The Descent of Man, and Selection in Relation to Sex
TL;DR: In this paper, secondary sexual characters of fishes, amphibians and reptiles are presented. But the authors focus on the secondary sexual characteristics of fishes and amphibians rather than the primary sexual characters.
Journal Article
The descent of man and selection in relation to sex: documento
TL;DR: Part I. Sexual Selection (continued): Secondary sexual characters of fishes, amphibians and reptiles, and secondarySexual characters of birds.
Journal ArticleDOI
Mate selection-A selection for a handicap
TL;DR: It is suggested that characters which develop through mate preference confer handicaps on the selected individuals in their survival, which are of use to the selecting sex since they test the quality of the mate.