Behavioral and Physiological Compensation for Chronic Hypoxia in the Sailfin Molly (Poecilia latipinna)

2004 ◽  
Vol 77 (4) ◽  
pp. 601-610 ◽  
Author(s):  
Cindy M. Timmerman ◽  
Lauren J. Chapman
Keyword(s):  
Chronic Hypoxia ◽  
Poecilia Latipinna ◽  
Sailfin Molly

Lipid Dynamics during Reproduction in Two Livebearing Fishes, Gambusia holbrooki and Poecilia latipinna

1993 ◽  
Vol 50 (10) ◽  
pp. 2185-2191 ◽  
Author(s):  
Gary K. Meffe ◽  
Franklin F. Snelson Jr.
Keyword(s):  
Lipid Content ◽  
Energy Use ◽  
Late Summer ◽  
Energy Allocation ◽  
Metabolic Efficiency ◽  
Gambusia Holbrooki ◽  
Poecilia Latipinna ◽  
Lipid Dynamics ◽  
Sailfin Molly ◽  
Eastern Mosquitofish

In animals, strategies of energy allocation among growth, maintenance and reproduction can be significantly altered by lipid storage. Poeciliid (livebearing) fishes store energy in late summer and fall for overwintering and first reproduction in spring, but details of energy use in reproduction are lacking. We conducted a laboratory experiment on the eastern mosquitofish (Gambusia holbrooki) and the sailfin molly (Poecilia latipinna) to document changes in lipid content in both the ovary and soma during development of a brood. In females of both species, ovarian lipid content was highest early in embryogeny and then declined; adult somatic lipids increased (were replenished) during embryonic development in mosquitofish, but declined in mollies. Larger clutches sequestered a larger share of body lipids in both species, possibly indicating energetic limits to reproduction. Finally, growth rate was positively correlated with somatic lipid content in both species, indicating among-individual differences in metabolic efficiency or feeding efficiency rather than a trade-off between growth and energy storage.

Multiple paternity in different populations of the sailfin molly, Poecilia latipinna

2012 ◽  
Vol 62 (3) ◽  
pp. 245-262 ◽  
Author(s):  
Antje Girndt ◽  
Rüdiger Riesch ◽  
Christiane Schröder ◽  
Ingo Schlupp ◽  
Martin Plath ◽  
...  
Keyword(s):  
Microsatellite Loci ◽  
Statistical Approach ◽  
Multiple Paternity ◽  
Equal Probability ◽  
Poecilia Latipinna ◽  
The South ◽  
Allopatric Populations ◽  
South Eastern ◽  
Sailfin Molly ◽  
Different Populations

Rates of multiple paternities were investigated in the sailfin molly (Poecilialatipinna), using eight microsatellite loci. Genotyping was performed for offspring and mothers in 40 broods from four allopatric populations from the south-eastern U.S.A. along a geographic stretch of 1200 km in west-east direction and approximately 200 km from north to south. No significant differences regarding rates of multiple paternities were found between populations despite sample populations stemming from ecologically divergent habitats. Even the most conservative statistical approach revealed a minimum of 70% of the broods being sired by at least two males, with an average of 1.80-2.95 putative fathers per brood. Within broods, one male typically sired far more offspring than would be expected under an assumed equal probability of all detected males siring offspring.

Large-Scale Natural Disturbance Alters Genetic Population Structure of the Sailfin Molly, Poecilia latipinna

2013 ◽  
Vol 181 (2) ◽  
pp. 254-263 ◽  
Author(s):  
Joseph J. Apodaca ◽  
Joel C. Trexler ◽  
Nathaniel K. Jue ◽  
Matthew Schrader ◽  
Joseph Travis
Keyword(s):  
Population Structure ◽  
Large Scale ◽  
Natural Disturbance ◽  
Genetic Population Structure ◽  
Poecilia Latipinna ◽  
Genetic Population ◽  
Sailfin Molly

SEXUAL HARASSMENT AS A COST FOR MOLLY FEMALES: BIGGER MALES COST LESS

Behaviour ◽  
2001 ◽  
Vol 138 (2) ◽  
pp. 277-286 ◽  
Author(s):  
Michael Ryan ◽  
Ryan McKnab ◽  
Ingo Schlupp
Keyword(s):  
Sexual Harassment ◽  
Feeding Time ◽  
Poecilia Latipinna ◽  
Size Dependent ◽  
Sailfin Molly ◽  
Amazon Molly ◽  
Sailfin Mollies

AbstractFemales of many species receive male attention that reflects a conflict between the sexes over reproduction. Here we demonstrate that female sailfin mollies (Poecilia latipinna) suffer such a cost via a reduction of their feeding time in the presence of males. Female sailfin mollies spend significantly more time feeding when accompanied by an Amazon molly (P.formosa) or a sailfin molly female than when accompanied by a male sailfin molly. Furthermore, we show that male sexual harassment is size dependent and that small males impose a greater cost on females.

Sign in / Sign up

Export Citation Format

Share Document