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Title: Quantifying biological integrity of California sage scrub communities using plant life-form cover.

Abstract

The California sage scrub (CSS) community type in California's Mediterranean-type ecosystems supports a large number of rare, threatened, and endangered species, and is critically degraded and endangered. Monitoring ecological variables that provide information about community integrity is vital to conserving these biologically diverse communities. Fractional cover of true shrub, subshrub, herbaceous vegetation, and bare ground should fill information gaps between generalized vegetation type maps and detailed field-based plot measurements of species composition and provide an effective means for quantifying CSS community integrity. Remote sensing is the only tool available for estimating spatially comprehensive fractional cover over large extent, and fractional cover of plant life-form types is one of the measures of vegetation state that is most amenable to remote sensing. The use of remote sensing does not eliminate the need for either field surveying or vegetation type mapping; rather it will likely require a combination of approaches to reliably estimate life-form cover and to provide comprehensive information for communities. According to our review and synthesis, life-form fractional cover has strong potential for providing ecologically meaningful intermediate-scale information, which is unattainable from vegetation type maps and species-level field measurements. Thus, we strongly recommend incorporating fractional cover of true shrub, subshrub, herb,more » and bare ground in CSS community monitoring methods. Estimating life-form cover at a 25 m x 25 m spatial scale using remote sensing would be an appropriate approach for initial implementation. Investigation of remote sensing techniques and an appropriate spatial scale; collaboration of resource managers, biologists, and remote sensing specialists, and refinement of protocols are essential for integrating life-form fractional cover mapping into strategies for sustainable long-term CSS community management.« less

Authors:
; ;  [1];  [2];  [2]
  1. (Environmental Science Division)
  2. (
Publication Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org.:
USDOE Office of Science (SC); San Diego State University, Department of Geography
OSTI Identifier:
1040690
Report Number(s):
ANL/EVS/JA-73277
Journal ID: ISSN 1388-7904; TRN: US201211%%46
DOE Contract Number:  
DE-AC02-06CH11357
Resource Type:
Journal Article
Journal Name:
Journal of Mediterranean Ecology
Additional Journal Information:
Journal Volume: 10; Journal Issue: 2010; Journal ID: ISSN 1388-7904
Country of Publication:
United States
Language:
ENGLISH
Subject:
60 APPLIED LIFE SCIENCES; 54 ENVIRONMENTAL SCIENCES; COMMUNITIES; ECOSYSTEMS; ENDANGERED SPECIES; IMPLEMENTATION; MANAGEMENT; MONITORING; PLANTS; REMOTE SENSING; SYNTHESIS

Citation Formats

Hamada, Y., Stow, D. A., Franklin, J., San Diego State University, Department of Geography), and Arizona State University, School of Geographical Sciences and Urban Planning). Quantifying biological integrity of California sage scrub communities using plant life-form cover.. United States: N. p., 2010. Web.
Hamada, Y., Stow, D. A., Franklin, J., San Diego State University, Department of Geography), & Arizona State University, School of Geographical Sciences and Urban Planning). Quantifying biological integrity of California sage scrub communities using plant life-form cover.. United States.
Hamada, Y., Stow, D. A., Franklin, J., San Diego State University, Department of Geography), and Arizona State University, School of Geographical Sciences and Urban Planning). Fri . "Quantifying biological integrity of California sage scrub communities using plant life-form cover.". United States.
@article{osti_1040690,
title = {Quantifying biological integrity of California sage scrub communities using plant life-form cover.},
author = {Hamada, Y. and Stow, D. A. and Franklin, J. and San Diego State University, Department of Geography) and Arizona State University, School of Geographical Sciences and Urban Planning)},
abstractNote = {The California sage scrub (CSS) community type in California's Mediterranean-type ecosystems supports a large number of rare, threatened, and endangered species, and is critically degraded and endangered. Monitoring ecological variables that provide information about community integrity is vital to conserving these biologically diverse communities. Fractional cover of true shrub, subshrub, herbaceous vegetation, and bare ground should fill information gaps between generalized vegetation type maps and detailed field-based plot measurements of species composition and provide an effective means for quantifying CSS community integrity. Remote sensing is the only tool available for estimating spatially comprehensive fractional cover over large extent, and fractional cover of plant life-form types is one of the measures of vegetation state that is most amenable to remote sensing. The use of remote sensing does not eliminate the need for either field surveying or vegetation type mapping; rather it will likely require a combination of approaches to reliably estimate life-form cover and to provide comprehensive information for communities. According to our review and synthesis, life-form fractional cover has strong potential for providing ecologically meaningful intermediate-scale information, which is unattainable from vegetation type maps and species-level field measurements. Thus, we strongly recommend incorporating fractional cover of true shrub, subshrub, herb, and bare ground in CSS community monitoring methods. Estimating life-form cover at a 25 m x 25 m spatial scale using remote sensing would be an appropriate approach for initial implementation. Investigation of remote sensing techniques and an appropriate spatial scale; collaboration of resource managers, biologists, and remote sensing specialists, and refinement of protocols are essential for integrating life-form fractional cover mapping into strategies for sustainable long-term CSS community management.},
doi = {},
journal = {Journal of Mediterranean Ecology},
issn = {1388-7904},
number = 2010,
volume = 10,
place = {United States},
year = {2010},
month = {1}
}