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Range-wide priority setting for the conservation and restoration of Asian rosewood species accounting for multiple threats and ecogeographic diversity

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Title Range-wide priority setting for the conservation and restoration of Asian rosewood species accounting for multiple threats and ecogeographic diversity
 
Creator Gaisberger, Hannes
Fremout, Tobias
So, Thea
Thammavong, Bansa
Bounithiphonh, Chaloun
Hoa, Tran Tin
Yongqi, Zheng
Kanchanarak, Tania
Changtragoon, Suchitra
Sreng, Sineath
Ping, Huang
Hang Hung, Tin
Pyae Win, Pyae
Hartvig, Ida
Theilade, Ida
Boshier, David
MacKay, John
Kettle, Chris
Jalonen, Riina
 
Subject restoration
vulnerability
genetic resources conservation
risk analysis
climate change
restauración
vulnerabilidad
conservación de recursos genéticos
 
Description Understanding the impact of multiple anthropogenic threats on tree species is urgently needed for estimating population decline and enabling coordinated and efficient conservation actions. We applied a spatially explicit framework to assess the vulnerability of three highly valuable Asian rosewood species (Dalbergia cochinchinensis, D. cultrata, D. oliveri) to five key threats across their native ranges in six countries of the Greater Mekong Subregion. All three species face significant threat levels from at least one of the five threats in more than 75% of their native ranges, including within existing protected areas. Overexploitation is the single most important threat (53–60%), followed by habitat conversion (17–41%) and fire (20–28%). About 21% of the distribution range of D. cultrata is under medium to very high threat from climate change, which is predicted to have less impact on D. oliveri and on
D. cochinchinensis. Based on our threat assessment we delineated species-specific priority areas for conservation and restoration that we subdivided by ecoregions as a surrogate for adaptive variation within species. Half of the ecoregions were classified as priority for improving the conservation of adaptive variation in one or more of the species. We propose spatially explicit follow-up actions that include in situ conservation, restoration, and ex situ conservation to improve the effectiveness of current conservation measures to capture adaptive variation within species. Transboundary coordination will be important to effectively address conservation threats. The study can act as a model for regional planning for other valuable tree species.
 
Date 2022-04-28
2022-04-29T14:09:00Z
2022-04-29T14:09:00Z
 
Type Journal Article
 
Identifier Gaisberger, H.; Fremout, T.; So, T.; Thammavong, B.; Bounithiphonh, C.; Hoa, T.T.; Yongqi, Z.; Kanchanarak, T.; Changtragoon, S.; Sreng, S.; Ping, H.; Hang Hung, T.; Pyae Win, P.; Hartvig, I.; Theilade, I.; Boshier, D.; MacKay, J.; Kettle, C.; Jalonen, R. (2022) Range-wide priority setting for the conservation and restoration of Asian rosewood species accounting for multiple threats and ecogeographic diversity. Biological Conservation 270: 109560. 9 p. ISSN: 0006-3207
0006-3207
https://hdl.handle.net/10568/119421
https://doi.org/10.1016/j.biocon.2022.109560
 
Language en
 
Rights CC-BY-4.0
Open Access
 
Format 9 p.
application/pdf
 
Publisher Elsevier
 
Source Biological Conservation