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Accueil du site → Master → Etats Unis → 1997 → The Recovery of Microbiotic Crusts Following Post-Fire Rehabilitation on Rangelands of the Western Snake River Plain

Boise State University (1997)

The Recovery of Microbiotic Crusts Following Post-Fire Rehabilitation on Rangelands of the Western Snake River Plain

Kaltenecker, Julienne Hilty,

Titre : The Recovery of Microbiotic Crusts Following Post-Fire Rehabilitation on Rangelands of the Western Snake River Plain

Auteur : Kaltenecker, Julienne Hilty,

Université de soutenance : Boise State University

Grade : Master of Science in Interdisciplinary Studies, Plant Ecology and Soil Science 1997

Résumé
Microbiotic crusts occur as a thin layer of bryophytes (mosses and liverworts), lichens, microfungi, algae, and cyanobacteria in arid and semiarid plant communities world-wide (St. Clair & Johansen 1993). In Wyoming big sagebrush (Artemisia tridentata Nutt. ssp. wyomingensis Beetle & Young)/bunchgrass associations on the western Snake River Plain in southwestern Idaho, this biotic layer occupies the interspaces between shrubs and bunchgrasses, essentially forming a diminutive community within the confines of the vascular plant complex. In many cases, the microbiotic crust creates a rough, undulating or pedicelled microtopography, contributing to the complexity of the "microcommunity" (Harper & Marble 1988) via creation of numerous microhabitats.

Présentation

Page publiée le 13 février 2018