Conservation genetics of rare trees restricted to subtropical montane cloud forests in southern China: a case study from Quercus arbutifolia (Fagaceae)

Xu, Jin; Jiang, Xiao‐Long; Deng, Min; Westwood, Murphy; Zheng, Sisi

doi:10.1007/s11295-016-1048-1

Cited by 15 publications

(11 citation statements)

References 113 publications

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“…Species that are sensitive to global warming may shift their species ranges to cooler locations at higher elevations or latitudes (Feeley et al, 2013;Molina-Martibez et al, 2016;Tang et al, 2017). However, since acorns possess a very limited dispersal ability and low seedling establishment rate (Valkonen, 2008;Xu et al, 2016), rapid increases in temperature could easily wipe out species and lead to regional or even global extinction. Additionally, their general rarity and long distances among MCFs habitats make establishment of new populations at different latitudes very unlikely.…”

Section: Quercus Arbutifolia: a Mcfs Tree At The Brink Of Extinctionmentioning

confidence: 99%

“…Thus, a major coordinated effort is required to establish viable, representative, and well-documented collections at botanical gardens, arboreta, and/or in local nurseries of the protected areas. Since Q. arbutifolia exhibits an unexpectedly high level of genetic diversity, and high genetic uniqueness of the populations (Xu et al, 2016), all known populations should be secured with ex situ collections. Particular focus should be directed on populations that face significant habitat loss in current habitats (DQ and TG) and predicted habitats for 2050 (YZ, GY, and DM).…”

Section: Ex Situ Conservationmentioning

confidence: 99%

“…1A) (Deng et al, 2011a;Huang et al, 1999;Oldfield and Eastwood, 2007). A previous population genetic study based on five known populations of Q. arbutifolia in China indicated both high genetic differentiation among populations and genetic diversity within populations (Xu et al, 2016).…”

Section: Introductionmentioning

confidence: 96%

“…(5) What will be the change in area of occupancy (AOO) and the upslope distribution shift in all known populations of southern China? Finally, based on the results of this study and of previously obtained relevant data (Xu et al, 2016), the consequences of climate change on threatened and extremely rare woody species in MCFs are discussed, with the ultimate goal to provide systematic conservation and management guidelines for the long-term conservation of Q. arbutifolia.…”

Section: Introductionmentioning

confidence: 97%

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Predicting climate change impacts on the threatened Quercus arbutifolia in montane cloud forests in southern China and Vietnam: Conservation implications

Song

Petitpierre²,

Deng³

et al. 2019

Forest Ecology and Management

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A B S T R A C TTrees of montane cloud forests (MCFs) often have small and isolated populations and face numerous threats. Due to limited conservation resources, management decisions are often based on scarce biological information. This study investigated the current status of populations of the critically endangered oak species Quercus arbutifolia in southern China, including its distribution, threats, population structure, and area of occupancy (AOO). Additionally, by using ensembles of small models (ESMs), the present and future (2050) distributions of climatically suitable habitats were predicted throughout south China and Vietnam. The present distribution of Q. arbutifolia is extremely fragmented, with only eight confirmed populations and a very small number of individuals (ca. 1200 in total). The results presented here show that Q. arbutifolia populations suffer from habitat destruction and fragmentation, small population size, unbalanced population structure, and pressure from strong competitor species, even though all known occurrences of Q. arbutifolia are in already established nature reserves. Based on the utilized models, the current potential distribution is limited to MCFs, and 17 new areas were predicted to have complete habitats suitability for Q. arbutifolia. However, only a small area in Fujian province will remain suitable for Q. arbutifolia in the future. The current AOO of Q. arbutifolia is very small (8.49 km 2 ), with one-third of all populations predicted to be extinct by 2050, even under the minimum emission assumption. Finally, various actions and conservation measures, such as search for new unknown populations as well as ex situ and in situ conservation, are introduced and discussed in this paper.

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Section: Quercus Arbutifolia: a Mcfs Tree At The Brink Of Extinctionmentioning

confidence: 99%

Section: Ex Situ Conservationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 96%

Section: Introductionmentioning

confidence: 97%

See 2 more Smart Citations

Predicting climate change impacts on the threatened Quercus arbutifolia in montane cloud forests in southern China and Vietnam: Conservation implications

Song

Petitpierre²,

Deng³

et al. 2019

Forest Ecology and Management

Self Cite

View full text Add to dashboard Cite

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“…So far, only the intergenic region of the chloroplast trn T- trn L was applied to distinguish six species of section Cyclobalanopsis distributed in Japan, and proved to have moderate efficiency ( Ohyama et al, 2001 ). Recent studies using cp DNA show that the species of section Cyclobalanopsis , e.g., Q. glauca ( Xu et al, 2015 ), Q. schottkyana ( Jiang et al, 2016 ), Q. arbutifolia ( Xu et al, 2016 ), and Q. kerrii ( Jiang et al, 2018 ), contain high variable regions to infer population history, but the resolution of cp DNA markers in discriminating section Cyclobalanopsis species is still unknown.…”

Section: Introductionmentioning

confidence: 99%

The Application and Limitation of Universal Chloroplast Markers in Discriminating East Asian Evergreen Oaks

et al. 2018

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The East Asian subtropics mostly occupied by evergreen broad-leaved forests (EBLFs), is one of the global diversity centers for evergreen oaks. Evergreen oaks are keystone canopy trees in EBLFs with important ecosystem function and crucial significance for regional biodiversity conservation. However, the species composition and diversity of Asian evergreen oaks are poorly understood. Here, we test whether the four chloroplast markers atpI-atpH, matK, psbA-trnH, and ycf1, can discriminate the two evergreen oak sections in Asia – Cyclobalanopsis and Ilex. Two hundred and seventy-two individuals representing 57 species were scanned and 17 species from other oaks sections were included for phylogenetic reconstruction. The genetic diversity of the Quercus sections was also compared. Overall, we found that universal chloroplast DNA (cpDNA) barcoding markers could resolve two clades in Quercus, i.e., subgenus Cerris (Old World Clade) and subgenus Quercus (New World Clade). The chloroplast markers distinguished the main sections, with few exceptions. Each cpDNA region showed no barcoding gap and none of them provided good resolution at the species level. The best species resolution (27.78%) was obtained when three or four markers were combined and analyzed using BLAST. The high conservation of the cpDNA and complicated evolutionary patterns, due to incomplete lineage sorting, interspecific hybridization and introgressions may hinder the ability of cpDNA markers to discriminate different species. When comparing diversification pattern across Quercus sections (Cyclobalanopsis, Ilex, Cerris, Quercus, and Protobalanus), we found that section Ilex was the most genetically diverse, and section Cyclobalanopsis was lower genetically diverse. This diversification pattern may have resulted from the interplay of the Eurasia Cenozoic tectonic movements, climate changes and different niches of their ancestral lineages.

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Genetic diversity and demographic analysis of an endangered tree species Diplopanax stachyanthus in subtropical China: implications for conservation and management

Feng

Wang

2018

Conserv Genet

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Conservation genetics of rare trees restricted to subtropical montane cloud forests in southern China: a case study from Quercus arbutifolia (Fagaceae)

Cited by 15 publications

References 113 publications

Predicting climate change impacts on the threatened Quercus arbutifolia in montane cloud forests in southern China and Vietnam: Conservation implications

Predicting climate change impacts on the threatened Quercus arbutifolia in montane cloud forests in southern China and Vietnam: Conservation implications

The Application and Limitation of Universal Chloroplast Markers in Discriminating East Asian Evergreen Oaks

Genetic diversity and demographic analysis of an endangered tree species Diplopanax stachyanthus in subtropical China: implications for conservation and management

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