Anthropogenic effect on wetland biodiversity in Lake Tana Region: A case of Infranz Wetland, Northwestern Ethiopia

This study evaluates the effect of anthropogenic activities on Infranz Wetland biodiversity in Lake Tana area. Plant biodiversity data were collected from quadrants that were established in transect lines and macroinvertebrates were collected using 500 μm mesh size. A survey with 386 households, fou...

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Autores principales:	Belachew Getnet Eneyew, Workiye Worie Assefa
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2021
Materias:	Infranz wetland Biodiversity Anthropogenic activities Degradation Environmental sciences GE1-350
Acceso en línea:	https://doaj.org/article/1564ef0091d943bcb15bcdaf1264a461
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spelling	oai:doaj.org-article:1564ef0091d943bcb15bcdaf1264a4612021-11-14T04:35:32ZAnthropogenic effect on wetland biodiversity in Lake Tana Region: A case of Infranz Wetland, Northwestern Ethiopia2665-972710.1016/j.indic.2021.100158https://doaj.org/article/1564ef0091d943bcb15bcdaf1264a4612021-12-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S2665972721000593https://doaj.org/toc/2665-9727This study evaluates the effect of anthropogenic activities on Infranz Wetland biodiversity in Lake Tana area. Plant biodiversity data were collected from quadrants that were established in transect lines and macroinvertebrates were collected using 500 μm mesh size. A survey with 386 households, four focus group discussions and 24 key informant interviews were conducted to capture socioeconomic data. Shannon-Wiener diversity index, species percentage distribution and dominance, regeneration status and ecological importance index were computed to evaluate the plant and macroinvertebrates condition. Descriptive statistics were used to analyze the survey data and qualitative data were analyzed thematically. The results of the biodiversity data showed ecological degradation of the study wetland. Though woody plants had rich (3.08) species diversity, more than 30% of species were represented only by four families which reflects overharvesting of the desired woody plant species. The non-ecological importance of 81.5% floristic plant species and the dominance of few macroinvertabrates such as tolerant taxa, predators and scrapers also implied the existence of habitat degradation. Furthermore, the dominance of emergent macrophytes implied the biodiversity loss of the wetland. Extraction of more than 15 billion cubic meter water for public water supply and khat irrigation, farmland expansion, eucalyptus plantation within the wetland, overgrazing and, overuse of papyrus were the principal factors for the wetland degradation and consequent loss of its biodiversity. Efforts have not been made to regulate the use of wetland resources. Thus, local governments should establish bylaws for sustainable use of the wetland.Belachew Getnet EneyewWorkiye Worie AssefaElsevierarticleInfranz wetlandBiodiversityAnthropogenic activitiesDegradationEnvironmental sciencesGE1-350ENEnvironmental and Sustainability Indicators, Vol 12, Iss , Pp 100158- (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Infranz wetland Biodiversity Anthropogenic activities Degradation Environmental sciences GE1-350
spellingShingle	Infranz wetland Biodiversity Anthropogenic activities Degradation Environmental sciences GE1-350 Belachew Getnet Eneyew Workiye Worie Assefa Anthropogenic effect on wetland biodiversity in Lake Tana Region: A case of Infranz Wetland, Northwestern Ethiopia
description	This study evaluates the effect of anthropogenic activities on Infranz Wetland biodiversity in Lake Tana area. Plant biodiversity data were collected from quadrants that were established in transect lines and macroinvertebrates were collected using 500 μm mesh size. A survey with 386 households, four focus group discussions and 24 key informant interviews were conducted to capture socioeconomic data. Shannon-Wiener diversity index, species percentage distribution and dominance, regeneration status and ecological importance index were computed to evaluate the plant and macroinvertebrates condition. Descriptive statistics were used to analyze the survey data and qualitative data were analyzed thematically. The results of the biodiversity data showed ecological degradation of the study wetland. Though woody plants had rich (3.08) species diversity, more than 30% of species were represented only by four families which reflects overharvesting of the desired woody plant species. The non-ecological importance of 81.5% floristic plant species and the dominance of few macroinvertabrates such as tolerant taxa, predators and scrapers also implied the existence of habitat degradation. Furthermore, the dominance of emergent macrophytes implied the biodiversity loss of the wetland. Extraction of more than 15 billion cubic meter water for public water supply and khat irrigation, farmland expansion, eucalyptus plantation within the wetland, overgrazing and, overuse of papyrus were the principal factors for the wetland degradation and consequent loss of its biodiversity. Efforts have not been made to regulate the use of wetland resources. Thus, local governments should establish bylaws for sustainable use of the wetland.
format	article
author	Belachew Getnet Eneyew Workiye Worie Assefa
author_facet	Belachew Getnet Eneyew Workiye Worie Assefa
author_sort	Belachew Getnet Eneyew
title	Anthropogenic effect on wetland biodiversity in Lake Tana Region: A case of Infranz Wetland, Northwestern Ethiopia
title_short	Anthropogenic effect on wetland biodiversity in Lake Tana Region: A case of Infranz Wetland, Northwestern Ethiopia
title_full	Anthropogenic effect on wetland biodiversity in Lake Tana Region: A case of Infranz Wetland, Northwestern Ethiopia
title_fullStr	Anthropogenic effect on wetland biodiversity in Lake Tana Region: A case of Infranz Wetland, Northwestern Ethiopia
title_full_unstemmed	Anthropogenic effect on wetland biodiversity in Lake Tana Region: A case of Infranz Wetland, Northwestern Ethiopia
title_sort	anthropogenic effect on wetland biodiversity in lake tana region: a case of infranz wetland, northwestern ethiopia
publisher	Elsevier
publishDate	2021
url	https://doaj.org/article/1564ef0091d943bcb15bcdaf1264a461
work_keys_str_mv	AT belachewgetneteneyew anthropogeniceffectonwetlandbiodiversityinlaketanaregionacaseofinfranzwetlandnorthwesternethiopia AT workiyeworieassefa anthropogeniceffectonwetlandbiodiversityinlaketanaregionacaseofinfranzwetlandnorthwesternethiopia
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Anthropogenic effect on wetland biodiversity in Lake Tana Region: A case of Infranz Wetland, Northwestern Ethiopia

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