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Dive into the research topics where Jaime Villa is active.

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Featured researches published by Jaime Villa.


Copeia | 1976

Chromosomal Homogeneity in Two Sympatric Cyprinid Fishes of the Genus Rhinichthys

William Mike Howell; Jaime Villa

The sympatric cyprinid fishes, Rhinichthys atratulus and R. cataractae, have never been known to hybridize in nature. However, genetic compatibility has been confirmed as the two species can be freely hybridized in the laboratory. Our cytological studies revealed that both species have a diploid chromosome number of 50 and that there are no apparent gross karyotypic differences which might account for their reproductive isolation in nature. Life history data suggest that the barriers to natural hybridization are probably behavioral and ecological, not genetic.


Archive | 1985

The snakes of Honduras

Jaime Villa; Larry David Wilson; John R. Meyer


Copeia | 1979

Two Fungi Lethal to Frog Eggs in Central America

Jaime Villa


Copeia | 1989

Middle American herpetology : a bibliographic checklist

Jaime Villa; Larry David Wilson; Jerry D. Johnson


Copeia | 1977

Serpientes Venenosas de Costa rica

Jaime Villa; T Coldomiro Picado; T Clodomiro Picado


Copeia | 1990

An Annotated List and Guide to the Amphibians and Reptiles of Monteverde, Costa Rica

Jaime Villa; Marc P. Hayes; J. Alan Pounds; Walter W. Timmerman


Archive | 1986

Introduction to the herpetofauna of Costa Rica = Introducción a la herpetofauna de Costa Rica.

Jay M. Savage; Jaime Villa


Copeia | 1975

Identity of the Central American Cichlid Fish Cichlasoma bouchellei Fowler

Jaime Villa; Robert Rush Miller


Copeia | 1993

Aspectos Basicos Sobre Las Serpientes de Costa Rica

Jaime Villa; Fernando Chávez Mora; Jorge Alvarado Alvarado; Rodrigo Aymerich Bien; Alejandro Solórzano López


Archive | 1990

Ungaliophis, U. continentalis, U. panamensis

Jaime Villa; Larry David Wilson

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Jay M. Savage

San Diego State University

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Daniel H. Janzen

University of Pennsylvania

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