Measuring stream habitat conditions: Can remote sensing substitute for field data?

Autor: Dias-Silva K; Programa de Pós-graduação em Ecologia - Universidade Federal do Pará/Embrapa, Instituto de Ciências Biológicas, Belém, PA, Brazil; Programa Pós-graduação em Biodiversidade e Conservação - Universidade Federal do Pará-UFPA, Altamira, PA, Brazil. Electronic address: diassilva@ufpa.br., Vieira TB; Programa de Pós-graduação em Ecologia - Universidade Federal do Pará/Embrapa, Instituto de Ciências Biológicas, Belém, PA, Brazil; Programa Pós-graduação em Biodiversidade e Conservação - Universidade Federal do Pará-UFPA, Altamira, PA, Brazil. Electronic address: vieiratb@ufpa.br., de Matos TP; Programa Pós-graduação em Biodiversidade e Conservação - Universidade Federal do Pará-UFPA, Altamira, PA, Brazil., Juen L; Programa de Pós-graduação em Ecologia - Universidade Federal do Pará/Embrapa, Instituto de Ciências Biológicas, Belém, PA, Brazil; Universidade Federal do Pará-UFPA, Laboratório de Ecologia e Conservação, Instituto de Ciências Biológicas, Belém, PA, Brazil. Electronic address: leandrojuen@ufpa.br., Simião-Ferreira J; Universidade Estadual de Goiás-UEG, Laboratório de Pesquisas Ecológicas e Educação Científica, Campus Central, Anápolis, GO, Brazil. Electronic address: juliana.ferreira@ueg.br., Hughes RM; Amnis Opes Institute, Corvallis, OR, USA; Department of Fisheries, Wildlife, & Conservation Sciences, Oregon State University, Corvallis, OR, USA. Electronic address: hughes.bob@amnisopes.com., De Marco Júnior P; Universidade Federal de Goiás-UFG, Laboratório de Teoria, Metacomunidade e Ecologia de Paisagem, Departamento de Ecologia, ICB. Goiânia, GO, Brazil.
Jazyk: angličtina
Zdroj: The Science of the total environment [Sci Total Environ] 2021 Sep 20; Vol. 788, pp. 147617. Date of Electronic Publication: 2021 May 08.
DOI: 10.1016/j.scitotenv.2021.147617
Abstrakt: The ongoing encroachment of agricultural activities into natural areas is a growing problem for the ecological condition of streams. Stream ecological condition is best measured using both biotic and abiotic parameters that reflect different channel, riparian zone and catchment aspects. Multiple physical-chemical measures of water quality have long been widely used to represent the environmental conditions of water bodies. More recently, physical habitat structure, catchment land use and land cover have been employed to better understand water body conditions. Both water quality and physical habitat structure metrics are usually measured in the field and often have strong predictive power to analyze biological assemblage conditions. On the other hand, remote sensing of catchment land use and land cover provide relatively low-cost environmental information at large spatial extents, minimizing the need for fieldwork and reducing analytical time. Given these considerations, our aim in the present study was to evaluate the degree to which stream environmental conditions could be measured reliably via remote sensing. In particular, we assessed whether a remote sensing index (Normalized Difference Vegetation Index) and land use can be used as reliable surrogates for site habitat condition, channel dimensions, and water quality. We found that our remote sensing variables were not sufficient for predicting stream water quality or habitat structure. Therefore, we recommend using remote sensing indicators only when it is impossible to measure water quality and habitat structure in the field directly.
Competing Interests: Declaration of competing interest No conflict of interest exists. We wish to confirm that there are no known conflicts of interest associated with this publication and there has been no significant financial support for this work that could have influenced its outcome.
(Copyright © 2021 Elsevier B.V. All rights reserved.)
Databáze: MEDLINE
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