Informations et ressources scientifiques
sur le développement des zones arides et semi-arides

Accueil du site → Projets de développement → Projets de recherche pour le Développement → 2014 → CONSERVATION ECOLOGY OF AQUATIC SYSTEMS IN ARID LANDS

United States Department of Agriculture (USDA) 2014

CONSERVATION ECOLOGY OF AQUATIC SYSTEMS IN ARID LANDS

AQUATIC SYSTEMS - ARID LANDS

United States Department of Agriculture (USDA) Research, Education & Economics Information System (REEIS)

Titre : CONSERVATION ECOLOGY OF AQUATIC SYSTEMS IN ARID LANDS

Identification : NMCowley-13H

Pays : Etats Unis

Durée : Apr 1, 2014 à Sep 30, 2018

Domaine : Aquatic and Terrestrial Wildlife ; Watersheds and river basins, general

Partenaire : NEW MEXICO STATE UNIVERSITY 1620 STANDLEY DR ACADEMIC RESH A RM 110 LAS CRUCES,NM 88003-1239

Objectifs
Understand ecological requirements of native aquatic species. Study the demography and genetics of populations. Study biotic community organization and how humans modify landscapes and their aquatic ecosystems.

Descriptif
Primary focus of the proposed work is to develop new knowledge on aquatic species and ecosystems in arid lands and to disseminate this new knowledge to other scientists and agency personnel working in natural resources management. Collaborations and coordinations will be made with water managers and producers for access to study areas and to facilitate greater appreciation of native aquatic species. Additional collaborations with be continued with my institution's cooperative extension specialists to ensure dissemination of results and information to appropriate audiences outside academia. Results of the proposed work will also be incorporated into classroom presentations by the PI to undergraduate and graduate students at his institution. Outputs will be evaluated through student course evaluations, commentaries from natural resource professionals, and citations to published works as documented by Web of Science, Google Scholar, and Research Gate. Ecology Study ecosystems will include lotic and lentic habitats in western North America with an emphasis on ecosystems in water-stressed regions. Species of focal interest include native fishes of New Mexico, including the endangered Rio Grande silvery minnow. Additional invertebrate species of interest include fairy and tadpole shrimps, which are primitive branchiopod crustaceans that occur in ephemeral waters including playa lakes, livestock watering ponds, and flood retention ponds in southern New Mexico. Species will be studied from a population level to larger geographic perspectives. For vertebrate species, the PI plans to examine existing datasets and no collection of vertebrates or experimentation on vertebrates is planned or included in this proposal. Demography and Genetics Studies will be conducted on the demography and genetics of native fish and invertebrate populations. Methods will include characterization and comparison of populations with molecular genetic markers, measurement of age class structure and fecundity, simulation of population fates, estimation of effective population sizes, and the effects of selection and drift on population-level genetic diversity. Linkages will be studied between genetic markers and measures of population success, or fitness. For vertebrate species, the PI plans to examine existing datasets and no collection of vertebrates or experimentation on vertebrates is planned or included in this proposal. Communities and Ecosystems Biotic communities of aquatic invertebrates will be studied across a range of environmental conditions and at hierarchical scales spanning streams, watersheds, and major river drainages. Studies will be conducted to learn more about the composition of fish, invertebrate, and periphyton communities across spatial scales. Ephemeral desert ponds will be surveyed to document species occurrences and to learn fundamental facts about genome-environment interactions. Existing datasets on fish and invertebrates will also be evaluated but new collections of vertebrates or experimentation on vertebrates is not planned or included in this proposal

Présentation : USDA

Page publiée le 29 octobre 2015, mise à jour le 24 octobre 2017