David Dudgeon
University of Hong Kong
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Publications 267
#1David Dudgeon (HKU: University of Hong Kong)H-Index: 42
Summary Appropriation of fresh water to meet human needs is growing, and competition among users will intensify in a warmer and more crowded world. This essay explains why freshwater ecosystems are global hotspots of biological richness, despite a panoply of interacting threats that jeopardize biodiversity. The combined effects of these threats will soon become detrimental to humans since provision of ecosystem services, such as protein from capture fisheries, can only be sustained if waters rem...
2 CitationsSource
#1Andrea J. Reid (Carleton University)H-Index: 5
#2Andrew K. Carlson (MSU: Michigan State University)H-Index: 6
Last. Steven J. Cooke (Carleton University)H-Index: 69
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In the 12 years since Dudgeon et al. (2006) reviewed major pressures on freshwater ecosystems, the biodiversity crisis in the world’s lakes, reservoirs, rivers, streams and wetlands has deepened. While lakes, reservoirs and rivers cover only 2.3% of the Earth’s surface, these ecosystems host at least 9.5% of the Earth’s described animal species. Furthermore, using the World Wide Fund for Nature’s Living Planet Index, freshwater population declines (83% between 1970 and 2014) continue to outpace ...
46 CitationsSource
#1Jia LiH-Index: 1
#2Alice C. HughesH-Index: 12
Last. David DudgeonH-Index: 42
view all 3 authors...
#1Sahadevan Seena (UC: University of Coimbra)H-Index: 16
#2Felix Bfirlocher (MtA: Mount Allison University)H-Index: 43
Last. Manuel A. S. Graça (UC: University of Coimbra)H-Index: 39
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Abstract Global patterns of biodiversity have emerged for soil microorganisms, plants and animals, and the extraordinary significance of microbial functions in ecosystems is also well established. Virtually unknown, however, are large-scale patterns of microbial diversity in freshwaters, although these aquatic ecosystems are hotspots of biodiversity and biogeochemical processes. Here we report on the first large-scale study of biodiversity of leaf-litter fungi in streams along a latitudinal grad...
1 CitationsSource
#1Jia LiH-Index: 1
#2Alice C. HughesH-Index: 12
Last. David DudgeonH-Index: 42
view all 3 authors...
2 CitationsSource
#1Luke Gibson (SU: Southern University and A&M College)H-Index: 11
Last. Alexandra Andersson (HKU: University of Hong Kong)H-Index: 1
view all 7 authors...
#1Derek Vollmer (CI: Conservation International)H-Index: 10
#2Kashif Shaad (CI: Conservation International)H-Index: 4
Last. Helen M. Regan (UCR: University of California, Riverside)H-Index: 33
view all 21 authors...
Abstract Degradation of freshwater ecosystems and the services they provide is a primary cause of increasing water insecurity, raising the need for integrated solutions to freshwater management. While methods for characterizing the multi-faceted challenges of managing freshwater ecosystems abound, they tend to emphasize either social or ecological dimensions and fall short of being truly integrative. This paper suggests that management for sustainability of freshwater systems needs to consider t...
17 CitationsSource
#1Anthony Lau (HKU: University of Hong Kong)H-Index: 1
#2Nancy E. Karraker (URI: University of Rhode Island)H-Index: 15
Last. David Dudgeon (HKU: University of Hong Kong)H-Index: 42
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Forest loss has been associated with reduced survival in many vertebrates, and previous research on amphibians has mostly focused on effects at early life stages. Paramesotriton hongkongensis is a tropical newt that breeds in streams but spends up to 10 months per year in terrestrial habitats. Populations are threatened by habitat degradation and collection for the pet trade, but the cryptic terrestrial lifestyle of this newt has limited our understanding of its population ecology, which inhibit...
#1Luz BoyeroH-Index: 25
#2Manuel A. S. Graça (UC: University of Coimbra)H-Index: 39
Last. Richard G. Pearson (JCU: James Cook University)H-Index: 33
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Plant litter represents a major basal resource in streams, where its decomposition is partly regulated by litter traits. Litter-trait variation may determine the latitudinal gradient in decomposition in streams, which is mainly microbial in the tropics and detritivore-mediated at high latitudes. However, this hypothesis remains untested, as we lack information on large-scale trait variation for riparian litter. Variation cannot easily be inferred from existing leaf-trait databases, since nutrien...
33 CitationsSource
#1Virgilio Hermoso López (Griffith University)H-Index: 24
#2Stephanie R. Januchowski-Hartley (Paul Sabatier University)H-Index: 16
Last. P. McIntyre (UW: University of Wisconsin-Madison)H-Index: 58
view all 6 authors...
The IUCN Red List is the most extensive source of conservation status assessments for species worldwide, but important gaps in coverage remain. Here, we demonstrate the use of a spatial prioritization approach to efficiently prioritize species assessments to achieve increased and up-to-date coverage efficiently. We focus on freshwater fishes, which constitute a significant portion of vertebrate diversity, although comprehensive assessments are available for only 46% of species. We used marxan to...
1 CitationsSource