scholarly journals Thermal niche variation among individuals of the poison frog, Oophaga pumilio , in forest and converted habitats

Biotropica ◽  
2019 ◽  
Vol 51 (5) ◽  
pp. 747-756 ◽  
Author(s):  
Juana M. Rivera‐Ordonez ◽  
A. Justin Nowakowski ◽  
Adrian Manansala ◽  
Michelle E. Thompson ◽  
Brian D. Todd
Keyword(s):  
Poison Frog ◽  
Thermal Niche ◽  
Oophaga Pumilio ◽  
Niche Variation

scholarly journals Sequestered Alkaloid Defenses in the Dendrobatid Poison Frog Oophaga pumilio Provide Variable Protection from Microbial Pathogens

2018 ◽  
Vol 44 (3) ◽  
pp. 312-325 ◽  
Author(s):  
Kyle J. Hovey ◽  
Emily M. Seiter ◽  
Erin E. Johnson ◽  
Ralph A. Saporito
Keyword(s):  
Microbial Pathogens ◽  
Poison Frog ◽  
Oophaga Pumilio

scholarly journals Experimental Evidence for Aposematism in the Dendrobatid Poison Frog Oophaga pumilio

Copeia ◽  
2007 ◽  
Vol 2007 (4) ◽  
pp. 1006-1011 ◽  
Author(s):  
Ralph A. Saporito ◽  
Rachel Zuercher ◽  
Marcus Roberts ◽  
Kenneth G. Gerow ◽  
Maureen A. Donnelly
Keyword(s):  
Experimental Evidence ◽  
Poison Frog ◽  
Oophaga Pumilio

Color Assortative Mating in a Mainland Population of the Poison Frog Oophaga pumilio

Ethology ◽  
2016 ◽  
Vol 122 (11) ◽  
pp. 851-858 ◽  
Author(s):  
Meaghan R. Gade ◽  
Michelle Hill ◽  
Ralph A. Saporito
Keyword(s):  
Assortative Mating ◽  
Mainland Population ◽  
Poison Frog ◽  
Oophaga Pumilio

Variation in alkaloid-based microbial defenses of the dendrobatid poison frog Oophaga pumilio

Chemoecology ◽  
2015 ◽  
Vol 25 (4) ◽  
pp. 169-178 ◽  
Author(s):  
Annemarie E. Mina ◽  
Andras K. Ponti ◽  
Nicole L. Woodcraft ◽  
Erin E. Johnson ◽  
Ralph A. Saporito
Keyword(s):  
Poison Frog ◽  
Oophaga Pumilio

Male–male contest limits the expression of assortative mate preferences in a polymorphic poison frog

2020 ◽  
Author(s):  
Yusan Yang ◽  
Corinne L Richards-Zawacki
Keyword(s):  
Mate Choice ◽  
Reproductive Isolation ◽  
Intrasexual Competition ◽  
Mate Preferences ◽  
Male Competition ◽  
Local Color ◽  
Poison Frog ◽  
Oophaga Pumilio ◽  
Female Preferences ◽  
Male Territoriality

Abstract Codivergence of sexual traits and mate preferences can lead to assortative mating and subsequently reproductive isolation. However, mate choice rarely operates without intrasexual competition, and the effects of the latter on speciation are often overlooked. Maintaining trait polymorphisms despite gene flow and limiting assortative female preferences for less-competitive male phenotypes are two important roles that male–male competition may play in the speciation process. Both roles rely on the assumption that male–male competition limits the expression of divergent female preferences. We tested this assumption in the highly color-polymorphic strawberry poison frog (Oophaga pumilio). Females prefer males of the local color, suggesting that reproductive isolation may be evolving among color morphs. However, this inference does not account for male–male competition, which is also color-mediated. We housed females with two differently colored males, and compared reproductive patterns when the more attractive male was the territory holder versus when he was the nonterritorial male. Females mated primarily with the territory winner, regardless of coloration, suggesting that when a choice must be made between the two, male territoriality overrides female preferences for male coloration. Our results highlight the importance of considering the combined effects of mate choice and intrasexual competition in shaping phenotypic divergence and speciation.

Spatial and temporal patterns of alkaloid variation in the poison frog Oophaga pumilio in Costa Rica and Panama over 30 years

Toxicon ◽  
2007 ◽  
Vol 50 (6) ◽  
pp. 757-778 ◽  
Author(s):  
Ralph A. Saporito ◽  
Maureen A. Donnelly ◽  
Poonam Jain ◽  
H. Martin Garraffo ◽  
Thomas F. Spande ◽  
...  
Keyword(s):  
Costa Rica ◽  
Temporal Patterns ◽  
Spatial And Temporal Patterns ◽  
Poison Frog ◽  
Oophaga Pumilio

scholarly journals Effects of prey turnover on poison frog toxins: a landscape ecology approach to assess how biotic interactions affect species phenotypes

2019 ◽  
Author(s):  
Ivan Prates ◽  
Andrea Paz ◽  
Jason L. Brown ◽  
Ana C. Carnaval
Keyword(s):  
Prey Species ◽  
Biotic Interactions ◽  
Analytical Framework ◽  
Phenotypic Change ◽  
Evolutionary Divergence ◽  
Ecological Studies ◽  
Poison Frog ◽  
Oophaga Pumilio ◽  
Evolutionary Relatedness ◽  
Species Pairs

AbstractEcological studies of species pairs demonstrated that biotic interactions promote phenotypic change and eco-evolutionary feedbacks. However, we have a limited understanding of how phenotypes respond to interactions with multiple taxa. We investigate how interactions with a network of prey species contribute to spatially structured variation in the skin toxins of the Neotropical poison frog Oophaga pumilio. Specifically, we assess how beta-diversity of alkaloid-bearing arthropod prey assemblages (68 ant species) and evolutionary divergence among populations (from a neutral genetic marker) contribute to frog poison dissimilarity (toxin profiles composed of 230 different lipophilic alkaloids sampled from 934 frogs at 46 sites). We show that ant assemblage turnover predicts alkaloid turnover and unique toxin combinations across the range of O. pumilio. By contrast, evolutionary relatedness is barely correlated with toxin variation. We discuss how the analytical framework proposed here can be extended to other multi-trophic systems, coevolutionary mosaics, microbial assemblages, and ecosystem services.

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