Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Functional process zones and their fish communities in temperate Andean river networks
https://orcid.org/0000-0002-1747-2536
https://orcid.org/0000-0002-8074-0476
https://orcid.org/0000-0003-1154-7717
https://orcid.org/0000-0001-6508-8339
https://orcid.org/0000-0002-5113-5496
AbstractFluvial geomorphology provides an initial starting point for characterizing and understanding the ecogeomorphology of river networks. Knowledge of the spatial organization of morphological features and the way they influence processes within river networks is important for identifying potential links between the physical and ecological character of river systems. Here, a top‐down geographic information system‐based approach for determining the physical typology of river networks was used to determine and characterize the functional process zones (FPZs; large tracts of the river network with similar hydrogeomorphological character) of two rivers in central Chile. Seven distinct FPZs emerged from the analysis, and these had a nonuniform distribution along the river networks of the Biobío and Imperial Rivers. Some FPZs were frequent in number, with each FPZ segment being variable in length, whereas others were short and represented in limited number. A strong association between the physical character of FPZs and fish community was shown for the Biobío and Imperial Rivers. Specifically, dominant fish species varied among FPZs, and their habitat preferences were strongly related to the hydrogeomorphic character of the FPZ they dominated. These results are significant, as they can inform design of future ecological research and development of effective monitoring programmes.
Functional process zones and their fish communities in temperate Andean river networks
https://orcid.org/0000-0002-1747-2536
https://orcid.org/0000-0002-8074-0476
https://orcid.org/0000-0003-1154-7717
https://orcid.org/0000-0001-6508-8339
https://orcid.org/0000-0002-5113-5496
AbstractFluvial geomorphology provides an initial starting point for characterizing and understanding the ecogeomorphology of river networks. Knowledge of the spatial organization of morphological features and the way they influence processes within river networks is important for identifying potential links between the physical and ecological character of river systems. Here, a top‐down geographic information system‐based approach for determining the physical typology of river networks was used to determine and characterize the functional process zones (FPZs; large tracts of the river network with similar hydrogeomorphological character) of two rivers in central Chile. Seven distinct FPZs emerged from the analysis, and these had a nonuniform distribution along the river networks of the Biobío and Imperial Rivers. Some FPZs were frequent in number, with each FPZ segment being variable in length, whereas others were short and represented in limited number. A strong association between the physical character of FPZs and fish community was shown for the Biobío and Imperial Rivers. Specifically, dominant fish species varied among FPZs, and their habitat preferences were strongly related to the hydrogeomorphic character of the FPZ they dominated. These results are significant, as they can inform design of future ecological research and development of effective monitoring programmes.
Functional process zones and their fish communities in temperate Andean river networks
https://orcid.org/0000-0002-1747-2536
https://orcid.org/0000-0002-8074-0476
https://orcid.org/0000-0003-1154-7717
https://orcid.org/0000-0001-6508-8339
https://orcid.org/0000-0002-5113-5496
AbstractFluvial geomorphology provides an initial starting point for characterizing and understanding the ecogeomorphology of river networks. Knowledge of the spatial organization of morphological features and the way they influence processes within river networks is important for identifying potential links between the physical and ecological character of river systems. Here, a top‐down geographic information system‐based approach for determining the physical typology of river networks was used to determine and characterize the functional process zones (FPZs; large tracts of the river network with similar hydrogeomorphological character) of two rivers in central Chile. Seven distinct FPZs emerged from the analysis, and these had a nonuniform distribution along the river networks of the Biobío and Imperial Rivers. Some FPZs were frequent in number, with each FPZ segment being variable in length, whereas others were short and represented in limited number. A strong association between the physical character of FPZs and fish community was shown for the Biobío and Imperial Rivers. Specifically, dominant fish species varied among FPZs, and their habitat preferences were strongly related to the hydrogeomorphic character of the FPZ they dominated. These results are significant, as they can inform design of future ecological research and development of effective monitoring programmes.
Functional process zones and their fish communities in temperate Andean river networks
River Research & Apps
Elgueta, Anaysa (Autor:in) / Thoms, Martin C. (Autor:in) / Górski, Konrad (Autor:in) / Díaz, Gustavo (Autor:in) / Habit, Evelyn M. (Autor:in)
River Research and Applications ; 35 ; 1702-1711
01.12.2019
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
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