A new livebearing fish of the genus Limia (Cyprinodontiformes: Poeciliidae) from Lake Miragoane, Haiti

2020 ◽  
Vol 96 (6) ◽  
pp. 1360-1369
Author(s):  
Rodet Rodriguez‐Silva ◽  
Pablo F. Weaver
Keyword(s):  
Livebearing Fish

scholarly journals Gravid Spot Predicts Developmental Progress and Reproductive Output in a Livebearing Fish, Gambusia holbrooki

PLoS ONE ◽  
2016 ◽  
Vol 11 (1) ◽  
pp. e0147711 ◽  
Author(s):  
Nor Hakim Norazmi-Lokman ◽  
G. J. Purser ◽  
Jawahar G. Patil
Keyword(s):  
Reproductive Output ◽  
Gambusia Holbrooki ◽  
Developmental Progress ◽  
Livebearing Fish

scholarly journals Imminent risk of predation reduces the relative strength of postcopulatory sexual selection in the guppy

2020 ◽  
Vol 375 (1813) ◽  
pp. 20200076
Author(s):  
Alexandra Glavaschi ◽  
Silvia Cattelan ◽  
Alessandro Grapputo ◽  
Andrea Pilastro
Keyword(s):  
Sexual Selection ◽  
Sperm Competition ◽  
Repeated Measures ◽  
Poecilia Reticulata ◽  
Male Reproductive Success ◽  
Sperm Production ◽  
Postcopulatory Sexual Selection ◽  
Repeated Measures Design ◽  
Risk Of Predation ◽  
Livebearing Fish

Fifty years of research on sperm competition has led to a very good understanding of the interspecific variation in sperm production traits. The reasons why this variation is often very large within populations have been less investigated. We suggest that the interaction between fluctuating environmental conditions and polyandry is a key phenomenon explaining such variation. We focus here on imminent predation risk (IPR). IPR impacts significantly several aspects of prey behaviour and reproduction, and it is expected to influence the operation of sexual selection before and after mating. We estimated the effect of IPR on the male opportunity for pre- and postcopulatory sexual selection in guppies ( Poecilia reticulata ), a livebearing fish where females prefer colourful males and mate multiply. We used a repeated-measures design, in which males were allowed to mate with different females either under IPR or in a predator-free condition. We found that IPR increased the total opportunity for sexual selection and reduced the relative contribution of postcopulatory sexual selection to male reproductive success. IPR is inherently variable and our results suggest that interspecific reproductive interference by predators may contribute towards maintaining the variation in sperm production within populations. This article is part of the theme issue ‘Fifty years of sperm competition'.

scholarly journals Does Asymmetrical Gonopodium Morphology Predict Lateralized Behavior in the Fish Xenophallus umbratilis?

2020 ◽  
Vol 8 ◽  
Author(s):  
Erik S. Johnson ◽  
Mary-Elise Nielsen ◽  
Jerald B. Johnson
Keyword(s):  
Decision Making ◽  
Evolutionary Biology ◽  
Morphological Traits ◽  
Costa Rican ◽  
The Novel ◽  
Mating Preferences ◽  
Novel Object ◽  
Symmetrical Body ◽  
Livebearing Fish ◽  
And Behavior

Why bilaterally symmetrical organisms express handedness remains an important question in evolutionary biology. In some species, anatomical asymmetries have evolved that accompany behavioral handedness, yet we know remarkably little about causal links between asymmetric morphological traits and behavior. Here, we explore if a dextral or sinistral orientation of the male intromittent organ predicts side preferences in male behaviors. Our study addresses this question in the Costa Rican livebearing fish, Xenophallus umbratilis. This fish has a bilaterally symmetrical body plan, with one exception—the male anal fin (gonopodium), used to inseminate females, terminates with a distinct left- or right-handed corkscrew morphology. We used a detour assay to test males for side biases in approach behavior when exposed to four different stimuli (predator, potential mate, novel object, empty tank control). We found that left morph males preferred using their right eye to view potential mates, predators, and the control, and that right morph males preferred to use their left eye to view potential mates and predators, and their right eye to view the control. Males of both morphs displayed no eye bias when approaching the novel object. Our results suggest that there is a strong link between behavior and gonopodium orientation, with right and left morph males responding with opposite directional behaviors when presented with the same stimuli. This presents the intriguing possibility that mating preferences—in this case constrained by gonopodial morphology—could be driving lateralized decision making in a variety of non-mating behaviors.

The evolution of the placenta drives a shift in sexual selection in livebearing fish

Nature ◽  
2014 ◽  
Vol 513 (7517) ◽  
pp. 233-236 ◽  
Author(s):  
B. J. A. Pollux ◽  
R. W. Meredith ◽  
M. S. Springer ◽  
T. Garland ◽  
D. N. Reznick
Keyword(s):  
Sexual Selection ◽  
Livebearing Fish

scholarly journals Sympatry Predicts Spot Pigmentation Patterns and Female Association Behavior in the Livebearing Fish Poeciliopsis baenschi

PLoS ONE ◽  
2017 ◽  
Vol 12 (1) ◽  
pp. e0170326 ◽  
Author(s):  
Andrea J. Roth-Monzón ◽  
Laura E. Scott ◽  
Ashley A. Camargo ◽  
Eliza I. Clark ◽  
Eric E. Schott ◽  
...  
Keyword(s):  
Association Behavior ◽  
Livebearing Fish

Development of polymorphic microsatellite markers for the livebearing fish Poecilia parae

2008 ◽  
Vol 0 (0) ◽  
pp. 080310190901533-???
Author(s):  
ALEXANDER NATER ◽  
MICHAEL KRÜTZEN ◽  
ANNA K. LINDHOLM
Keyword(s):  
Microsatellite Markers ◽  
Polymorphic Microsatellite ◽  
Livebearing Fish
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