Grantee Research Project Results
Mechanisms Driving the Extirpation of a Desert Fish Species
EPA Grant Number: U915345Title: Mechanisms Driving the Extirpation of a Desert Fish Species
Investigators: Rosenfield, Jonathan Alan
Institution: New Mexico Institute of Mining and Technology
EPA Project Officer: Packard, Benjamin H
Project Period: September 1, 1998 through September 1, 2001
Project Amount: $71,038
RFA: STAR Graduate Fellowships (1998) RFA Text | Recipients Lists
Research Category: Fellowship - Zoology , Biology/Life Sciences , Academic Fellowships
Objective:
The objective of this research project is to identify the forces contributing to extinction via hybridization among animal species in nature.
Approach:
I am using the explosive introgression between the Pecos pupfish and the sheepshead minnow (genus: Cyprinodon) as a model system for studying mechanisms of hybridization and introgression. Differences in sexual selection systems, indicators of ecological competitiveness, and life history attributes of the two parent species and their hybrids are being studied as potential factors that promote hybridization and introgression in these related fish species.
Supplemental Keywords:
fellowship, extinction, hybridization, introgression, speciation, conservation biology, fish, sexual selection, natural selection, extirpation, Pecos pupfish, sheepshead minnow, Cyprinodon, ecological competitiveness., RFA, Scientific Discipline, Ecosystem Protection/Environmental Exposure & Risk, Ecology, Genetics, Ecosystem/Assessment/Indicators, Ecosystem Protection, exploratory research environmental biology, wildlife, Zoology, Ecological Effects - Environmental Exposure & Risk, Molecular Biology/Genetics, Biology, Ecological Indicators, Exp. Research/future, Futures, extinction risk, cyprinodon pecosensis, pecos pupfish, conservation, rapid evolution, speciation, introgression, hybridization, sheephead minnow, cyprinodon variegatusProgress and Final Reports:
The perspectives, information and conclusions conveyed in research project abstracts, progress reports, final reports, journal abstracts and journal publications convey the viewpoints of the principal investigator and may not represent the views and policies of ORD and EPA. Conclusions drawn by the principal investigators have not been reviewed by the Agency.