Diversity and phytogeography of vascular epiphytes in a tropical–subtropical transition island, Taiwan

Hsu, Rebecca C.-C.; Wolf, Jan H. D.

doi:10.1016/j.flora.2008.08.002

Cited by 22 publications

(25 citation statements)

References 32 publications

(38 reference statements)

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“…1). Three hundred and thirty-six species of vascular epiphytes have been reported for Taiwan (Hsu & Wolf, 2009), of which 271 species are holo-epiphytes (i.e. ]); Mt.…”

Section: Study Site Species Collections and Forest Typesmentioning

confidence: 99%

Simulating climate change impacts on forests and associated vascular epiphytes in a subtropical island of East Asia

Hsu

Tamis

Raes

et al. 2011

Diversity and Distributions

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Aim This study aims to assess the impact of climate change on forests and vascular epiphytes, using species distribution models (SDMs).Location Island of Taiwan, subtropical East Asia.Methods A hierarchical modelling approach incorporating forest migration velocity and forest type-epiphyte interactions with classical SDMs was used to model the responses of eight forest types and 237 vascular epiphytes for the year 2100 under two climate change scenarios. Forest distributions were modelled and modified by dominant tree species' dispersal limitations and hypothesized persistence under unfavourable climate conditions (20 years for broad-leaved trees and 50 years for conifers). The modelled forest projections together with 16 environmental variables were used as predictors in models of epiphyte distributions. A null method was applied to validate the significance of epiphyte SDMs, and potential vulnerable species were identified by calculating range turnover rates. ResultsFor the year 2100, the model predicted a reduction in the range of most forest types, especially for Picea and cypress forests, which shifted to altitudes c. 400 and 300 m higher, respectively. The models indicated that epiphyte distributions are highly correlated with forest types, and the majority (77-78%) of epiphyte species were also projected to lose 45-58% of their current range, shifting on average to altitudes c. 400 m higher than currently. Range turnover rates suggested that insensitive epiphytes were generally lowland or widespread species, whereas sensitive species were more geographically restricted, showing a higher correlation with temperature-related factors in their distributions.Main conclusions The hierarchical modelling approach successfully produced interpretable results, suggesting the importance of considering biotic interactions and the inclusion of terrain-related factors when developing SDMs for dependant species at a local scale. Long-term monitoring of potentially vulnerable sites is advised, especially of those sites that fall outside current conservation reserves where additional human disturbance is likely to exacerbate the effect of climate change.

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“…1). Three hundred and thirty-six species of vascular epiphytes have been reported for Taiwan (Hsu & Wolf, 2009), of which 271 species are holo-epiphytes (i.e. ]); Mt.…”

Section: Study Site Species Collections and Forest Typesmentioning

confidence: 99%

Simulating climate change impacts on forests and associated vascular epiphytes in a subtropical island of East Asia

Hsu

Tamis

Raes

et al. 2011

Diversity and Distributions

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“…On the contrary, continental islands possess relatively lower proportion of endemic taxa and floras of continental islands are closely related to floras of neighboring continents (Bramwell and Caujapé-Castells 2011; Fernández-Palacios et al 2011; Heaney 1991; Hsu and Wolf 2009). In East Asia, plant species richness of continental islands are closely related to the Eurasian continents and neighboring regions (Chiang and Schaal 2006; Hiramatsu et al 2001; Nakamura et al 2009; Ota 1998; Setoguchi et al 2008).…”

Section: Introductionmentioning

confidence: 99%

Investigation of floristic similarities between Taiwan and terrestrial ecoregions in Asia using GBIF data

Liao

Chen²

2017

Bot Stud

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BackgroundFloristic compositions of non-endemic plants of continental islands were related to the neighboring continents because non-endemic plant species had historically migrated to continental islands from source areas. This study attempts to identify source areas of a continental island by means of floristic analysis and to assess possible migration routes on the basis of geographical distribution ranges of plants. Large quantities of angiosperm data records were downloaded from the Global Biodiversity Information Facility (GBIF). Similarity index and cluster analysis were used to identify the floristic similarities among 22 geographical localities of Taiwan (GLTs) and 34 terrestrial ecoregions in Asia. Geographical distribution ranges of non-endemic angiosperm species in Taiwan (NEASTs) were evaluated to mirror the possible migration routes from different source areas to Taiwan.ResultsThere are 3275 angiosperm species in Taiwan derived from the dataset of GBIF. Among them, 847 are endemic and 2428 are NEASTs. Geographical distribution ranges of the 2428 NEASTs were categorized into 7 distribution groups. They were widely distribution from equator to Siberia (27 species), tropical ecoregions (345 species), tropical and subtropical ecoregions (663 species), tropical to temperate ecoregions (591 species), subtropical ecoregions (265 species), subtropical to temperate ecoregions (387 species), and temperate ecoregions (150 species). Results of similarity indices and cluster analysis demonstrated that high floristic similarities were observed among GLTs at lowland and southern Taiwan and tropical and subtropical ecoregions in Asia. GLTs at high mountains were assumed to have floristic similarity with temperate ecoregions in Asia, whereas the assumption was not supported by our analysis. It is partly because of that angiosperms with tropical and subtropical distributions extend their ranges from low to high elevations in Taiwan.ConclusionsSubtropical ecoregions at southern China and tropical ecoregions at Indochina were more important than temperate ecoregions on playing source areas of NEASTs. Geographical distribution ranges of NEASTs implied that most of the NEASTs were probably migrated from topical or subtropical ecoregions of Asian continent to Taiwan.Electronic supplementary materialThe online version of this article (doi:10.1186/s40529-017-0171-0) contains supplementary material, which is available to authorized users.

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“…In the canopies of undisturbed montane evergreen broad-leaved forests, abundant epiphytes comprise a substantial amount of the biomass and species diversity (You, 1983;Xu and Liu, 2005;Wang et al, 2008;Hsu and Wolf, 2009). Lichens are a nearly ubiquitous group of epiphytes in subtropical forests.…”

Section: Introductionmentioning

confidence: 99%

Biomass, diversity and composition of epiphytic macrolichens in primary and secondary forests in the subtropical Ailao Mountains, SW China

Liu

Wang

et al. 2011

Forest Ecology and Management

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Diversity and phytogeography of vascular epiphytes in a tropical–subtropical transition island, Taiwan

Cited by 22 publications

References 32 publications

Simulating climate change impacts on forests and associated vascular epiphytes in a subtropical island of East Asia

Simulating climate change impacts on forests and associated vascular epiphytes in a subtropical island of East Asia

Investigation of floristic similarities between Taiwan and terrestrial ecoregions in Asia using GBIF data

Biomass, diversity and composition of epiphytic macrolichens in primary and secondary forests in the subtropical Ailao Mountains, SW China

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