Sensitivity of Korean fir (Abies koreana Wils.), a threatened climate relict species, to increasing temperature at an island subalpine area

Koo, Kyung Ah; Kong, Woo-Seok; Park, Seon Uk; Lee, Woo Jung; Kim, Jaeuk; Jung, Huicheul

doi:10.1016/j.ecolmodel.2017.01.018

Cited by 33 publications

(32 citation statements)

References 82 publications

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“…Several molecular and physiological studies also mentioned that the Korean fir has adapted to low-temperature environmental conditions [17,18]. Rising temperatures may increase high-temperature-induced photoinhibition, which can decrease the vitality of Korean fir [14,50]. In addition, similar to Picea jezonesis, higher temperatures can increase the initial mortality of Korean fir seedlings [20].…”

Section: Discussionmentioning

confidence: 99%

“…This tree endures harsh environmental conditions, such as low temperatures, strong winds, and low soil nutrient levels, in its subalpine ecosystem [12,13]. It is well-known that relictual, cold-adapted subalpine plant species can be very sensitive to climate changes, such as rising temperatures and drought [14][15][16]. Climate changes can induce adverse physiological responses to the subalpine conifer trees [17,18].…”

Section: Introductionmentioning

confidence: 99%

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Hierarchical Environmental Factors Affecting the Distribution of Abies koreana on the Korean Peninsula

Park

Shin

Choi

et al. 2018

Forests

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A regional decline in the Korean fir (Abies koreana) has been observed since the 1980s in the subalpine region. To explain this decline, it is important to investigate the degree to which environmental factors have contributed to plant distributions on diverse spatial scales. We applied a hierarchical regression model to determine quantitatively the relationship between the abundance of Korean fir (seedlings) and diverse environmental factors across two different ecological scales. We measured Korean fir density and the occurrence of its seedlings in 102 (84) plots nested at five sites and collected a range of environmental factors at the same plots. Our model included hierarchical explanatory variables at both site-level (weather conditions) and plot-level (micro-topographic factors, soil properties, and competing species). The occurrence of Korean fir seedlings was positively associated with moss cover and rock cover but negatively related to dwarf bamboo cover. At the site level, winter precipitation was significantly and positively related to the occurrence of seedlings. A hierarchical Poisson regression model revealed that Korean fir density was negatively associated with slope aspect, topographic position index, Quercus mongolica cover, and mean summer temperature. Our results suggest that rising temperature, drought, and competition with other species are factors that impede the survival of the Korean fir. We can predict that the population of Korean fir will continue to decline in the subalpine, and only a few Korean fir will survive on northern slopes or valleys due to climate change.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Hierarchical Environmental Factors Affecting the Distribution of Abies koreana on the Korean Peninsula

Park

Shin

Choi

et al. 2018

Forests

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“…Several reports have predicted that global climate change can lead to further increases in the temperature on the Korean Peninsula as compared to other areas at similar latitudes [48,49]. Rising temperatures may increase high-temperature-induced photoinhibition and decrease the vitality of Korean fir [14,50]. In addition, increasing temperatures can cause heat-associated drought stress, which can affect Korean fir [14].…”

Section: Discussionmentioning

confidence: 99%

“…Rising temperatures may increase high-temperature-induced photoinhibition and decrease the vitality of Korean fir [14,50]. In addition, increasing temperatures can cause heat-associated drought stress, which can affect Korean fir [14]. With regard to water stress, the standard deviation of precipitation may increase in East Asia [51], meaning that the Korean Peninsula may be affected by a slight increase in seasonal drought.…”

Section: Discussionmentioning

confidence: 99%

“…This tree endures harsh environmental conditions, such as low temperatures, strong wind, and low soil nutrient levels in its subalpine ecosystem [12,13]. It is well known that relictual cold-adapted subalpine plant species can be very sensitive to climate changes such as rising temperatures and drought [14,15,16]. Korean fir, a subalpine cold-adapted tree, is categorized as an endangered species (EN) by the International Union for Conservation of Nature (IUCN) [17].…”

Section: Introductionmentioning

confidence: 99%

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Hierarchical Environmental Factors Affecting the Distribution of <em>Abies koreana</em> on the Korean Peninsula

Park¹,

Shin²,

Choi³

et al. 2018

Preprint

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Regional declines of the Korean fir (Abies koreana) have been observed since the 1980s on the subalpine region. To explain this decline, it is fundamental to investigate the degree to which environmental factors have contributed to plant distributions on diverse spatial scales. We applied a hierarchical regression model to determine quantitatively the relationship between the abundance of Korean fir (seedlings) and diverse environmental factors across two different ecological scales. We measured Korean fir density and the occurrence of its seedlings in 102 (84) plots nested at five sites and collected a range of environmental factors at the same plots. Our model included hierarchical explanatory variables at both site-level (weather conditions) and plot-level (micro-topographic factors, soil properties, and competing species). The occurrence of Korean fir seedlings was positively associated with moss cover and rock cover but negatively related to dwarf bamboo cover. On site-level, winter precipitation was significantly positively related to the occurrence of seedlings. A hierarchical Poisson regression model revealed that Korean fir density were negatively associated with slope aspect, topographic position index, Quercus mongolica cover, and mean summer temperature. Our results suggest that drought and competition with other species are factors which halt the survival of Korean fir. We can predict that the population of Korean fir will continue to decline on the Korean Peninsula due to rising temperatures and seasonal drought, and only a few Korean fir will survive on northern slopes or valleys where competition with dwarf bamboo and Q. mongolica can be avoided.

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Concealed truth: Modeling reveals unique Quaternary distribution dynamics and refugia of four related endemic keystone Abies taxa on the Tibetan Plateau

Xiong

Halmy

Dakhil

et al. 2019

Ecology and Evolution

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Understanding the factors driving the Quaternary distribution of Abies in the Tibetan Plateau (TP) is crucial for biodiversity conservation and for predicting future anthropogenic impacts on ecosystems. Here, we collected Quaternary paleo‐, palynological, and phylogeographical records from across the TP and applied ecological niche models (ENMs) to obtain a profound understanding of the different adaptation strategies and distributional changes in Abies trees in this unique area. We identified environmental variables affecting the different historical biogeographies of four related endemic Abies taxa and rebuilt their distribution patterns over different time periods, starting from the late Pleistocene. In addition, modeling and phylogeographic results were used to predict suitable refugia for Abies forrestii, A. forrestii var. georgei, A. fargesii var. faxoniana, and A. recurvata. We supplemented the ENMs by investigating pollen records and diversity patterns of cpDNA for them. The overall reconstructed distributions of these Abies taxa were dramatically different when the late Pleistocene was compared with the present. All Abies taxa gradually receded from the south toward the north in the last glacial maximum (LGM). The outcomes showed two well‐differentiated distributions: A. fargesii var. faxoniana and A. recurvata occurred throughout the Longmen refuge, a temporary refuge for the LGM, while the other two Abies taxa were distributed throughout the Heqing refuge. Both the seasonality of precipitation and the mean temperature of the driest quarter played decisive roles in driving the distribution of A. fargesii var. faxoniana and A. recurvata, respectively; the annual temperature range was also a key variable that explained the distribution patterns of the other two Abies taxa. Different adaptation strategies of trees may thus explain the differing patterns of distribution over time at the TP revealed here for endemic Abies taxa.

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Sensitivity of Korean fir (Abies koreana Wils.), a threatened climate relict species, to increasing temperature at an island subalpine area

Cited by 33 publications

References 82 publications

Hierarchical Environmental Factors Affecting the Distribution of Abies koreana on the Korean Peninsula

Hierarchical Environmental Factors Affecting the Distribution of Abies koreana on the Korean Peninsula

Hierarchical Environmental Factors Affecting the Distribution of <em>Abies koreana</em> on the Korean Peninsula

Concealed truth: Modeling reveals unique Quaternary distribution dynamics and refugia of four related endemic keystone Abies taxa on the Tibetan Plateau

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