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Changes and drivers of freshwater mussel diversity and distribution in northern Borneo

Human activities are threatening Borneo's unique biodiversity, but little is known on the status of freshwater invertebrates. We assessed changes in diversity and distribution of freshwater mussels (Bivalvia: Unionida) in northern Borneo, and identified drivers of present distribution and threa...

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Main Authors: Zieritz, Alexandra, Bogan, Arthur E., Khairul Adha, A.Rahim, Sousa, Ronaldo Gomes, Jainih, Leonardo, Harun, Sahana, Razak, Nabilah Fatin Abd, Gallardo, Belinda, McGowan, Suzanne, Ruhana, Hassan, Lopes-Lima, Manuel
Format: Article
Language:English
Published: Elsevier Ltd 2018
Subjects:
GC Oceanography
Online Access:http://ir.unimas.my/id/eprint/20285/1/Khairul%20Adha%20bin%20A.%20Rahim.pdf
http://ir.unimas.my/id/eprint/20285/
https://www.sciencedirect.com/science/article/pii/S0006320717310467?via%3Dihub
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spelling my.unimas.ir.202852022-02-28T01:26:09Z http://ir.unimas.my/id/eprint/20285/ Changes and drivers of freshwater mussel diversity and distribution in northern Borneo Zieritz, Alexandra Bogan, Arthur E. Khairul Adha, A.Rahim Sousa, Ronaldo Gomes Jainih, Leonardo Harun, Sahana Razak, Nabilah Fatin Abd Gallardo, Belinda McGowan, Suzanne Ruhana, Hassan Lopes-Lima, Manuel GC Oceanography Human activities are threatening Borneo's unique biodiversity, but little is known on the status of freshwater invertebrates. We assessed changes in diversity and distribution of freshwater mussels (Bivalvia: Unionida) in northern Borneo, and identified drivers of present distribution and threats. Past distribution data were collected from literature and museum resources. Present distribution data were collected from 21 river basins, and 47 water quality, climatic, landscape and human variables explored as potential predictors of species presence/absence. Species delimitations were identified by morphology and COI barcoding, and haplotype networks generated. Our data indicate that over the past 50 years, four of originally five native species have become very rare or possibly locally extirpated. Since these four species are endemic to Borneo, other Bornean river basins should urgently be surveyed to identify any remaining populations. In the same time span, the non-native Sinanodonta woodiana has become the most widespread freshwater mussel in northern Borneo. The fifth native species was identified as Rectidens sumatrensis and found in four Sarawakian river basins, thus contradicting previous assumptions of an endemic Bornean Rectidens species. Although a number of stable R. sumatrensis populations are retained across Sarawak, the species' strong spatial contraction in mainland Sundaland and apparent low tolerance to eutrophication suggest that it is vulnerable to further habitat alteration. Our results indicate that Borneo's (endemic) freshwater invertebrate biodiversity is declining rapidly. Comprehensive surveys targeting an array of invertebrate and vertebrate taxa are needed to identify Borneo's freshwater biodiversity hotspots, where conservation efforts should be concentrated. Elsevier Ltd 2018-03 Article PeerReviewed text en http://ir.unimas.my/id/eprint/20285/1/Khairul%20Adha%20bin%20A.%20Rahim.pdf Zieritz, Alexandra and Bogan, Arthur E. and Khairul Adha, A.Rahim and Sousa, Ronaldo Gomes and Jainih, Leonardo and Harun, Sahana and Razak, Nabilah Fatin Abd and Gallardo, Belinda and McGowan, Suzanne and Ruhana, Hassan and Lopes-Lima, Manuel (2018) Changes and drivers of freshwater mussel diversity and distribution in northern Borneo. Biological Conservation, 219. pp. 126-137. ISSN 0006-3207 https://www.sciencedirect.com/science/article/pii/S0006320717310467?via%3Dihub 10.1016/j.biocon.2018.01.012
institution Universiti Malaysia Sarawak
building Centre for Academic Information Services (CAIS)
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaysia Sarawak
content_source UNIMAS Institutional Repository
url_provider http://ir.unimas.my/
language English
topic GC Oceanography
spellingShingle GC Oceanography
Zieritz, Alexandra
Bogan, Arthur E.
Khairul Adha, A.Rahim
Sousa, Ronaldo Gomes
Jainih, Leonardo
Harun, Sahana
Razak, Nabilah Fatin Abd
Gallardo, Belinda
McGowan, Suzanne
Ruhana, Hassan
Lopes-Lima, Manuel
Changes and drivers of freshwater mussel diversity and distribution in northern Borneo
description Human activities are threatening Borneo's unique biodiversity, but little is known on the status of freshwater invertebrates. We assessed changes in diversity and distribution of freshwater mussels (Bivalvia: Unionida) in northern Borneo, and identified drivers of present distribution and threats. Past distribution data were collected from literature and museum resources. Present distribution data were collected from 21 river basins, and 47 water quality, climatic, landscape and human variables explored as potential predictors of species presence/absence. Species delimitations were identified by morphology and COI barcoding, and haplotype networks generated. Our data indicate that over the past 50 years, four of originally five native species have become very rare or possibly locally extirpated. Since these four species are endemic to Borneo, other Bornean river basins should urgently be surveyed to identify any remaining populations. In the same time span, the non-native Sinanodonta woodiana has become the most widespread freshwater mussel in northern Borneo. The fifth native species was identified as Rectidens sumatrensis and found in four Sarawakian river basins, thus contradicting previous assumptions of an endemic Bornean Rectidens species. Although a number of stable R. sumatrensis populations are retained across Sarawak, the species' strong spatial contraction in mainland Sundaland and apparent low tolerance to eutrophication suggest that it is vulnerable to further habitat alteration. Our results indicate that Borneo's (endemic) freshwater invertebrate biodiversity is declining rapidly. Comprehensive surveys targeting an array of invertebrate and vertebrate taxa are needed to identify Borneo's freshwater biodiversity hotspots, where conservation efforts should be concentrated.
format Article
author Zieritz, Alexandra
Bogan, Arthur E.
Khairul Adha, A.Rahim
Sousa, Ronaldo Gomes
Jainih, Leonardo
Harun, Sahana
Razak, Nabilah Fatin Abd
Gallardo, Belinda
McGowan, Suzanne
Ruhana, Hassan
Lopes-Lima, Manuel
author_facet Zieritz, Alexandra
Bogan, Arthur E.
Khairul Adha, A.Rahim
Sousa, Ronaldo Gomes
Jainih, Leonardo
Harun, Sahana
Razak, Nabilah Fatin Abd
Gallardo, Belinda
McGowan, Suzanne
Ruhana, Hassan
Lopes-Lima, Manuel
author_sort Zieritz, Alexandra
title Changes and drivers of freshwater mussel diversity and distribution in northern Borneo
title_short Changes and drivers of freshwater mussel diversity and distribution in northern Borneo
title_full Changes and drivers of freshwater mussel diversity and distribution in northern Borneo
title_fullStr Changes and drivers of freshwater mussel diversity and distribution in northern Borneo
title_full_unstemmed Changes and drivers of freshwater mussel diversity and distribution in northern Borneo
title_sort changes and drivers of freshwater mussel diversity and distribution in northern borneo
publisher Elsevier Ltd
publishDate 2018
url http://ir.unimas.my/id/eprint/20285/1/Khairul%20Adha%20bin%20A.%20Rahim.pdf
http://ir.unimas.my/id/eprint/20285/
https://www.sciencedirect.com/science/article/pii/S0006320717310467?via%3Dihub
_version_ 1725976302102511616
score 13.211869

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