Topographic complexity drives trait composition as well as functional and phylogenetic diversity of understory plant communities in microrefugia:New insights for conservation  

作　　者：Kata Frei Anna E-Vojtkó Csaba Tölgyesi Andráas Vojtkó Tünde Farkas Lászlo Erdös Gáabor Li Ádáam Lörincz Zoltáan Báatori 

机构地区：[1]Department of Ecology,University of Szeged,Közép fasor 52,6726,Szeged,Hungary [2]Doctoral School of Environmental Sciences,University of Szeged,Rerrich Béla téer 1,6720,Szeged,Hungary [3]Institute of Botany,Czech Academy of Sciences,Dukelska 135,37982,Treboñ,Czech Republic [4]MTA-SZTE‘Lendület’Applied Ecology Research Group,University of Szeged,Köozép fasor 52,6726,Szeged,Hungary [5]HUN-REN–UD Functional and Restoration Ecology Research Group,Egyetem tér 1,4032,Debrecen,Hungary [6]Department of Botany and Plant Physiology,Eszterhazy Károly Catholic University,Léanyka utca 6,3300,Eger,Hungary [7]Aggtelek National Park Directorate,Tengerszem oldal 1,3758,Jóosvafö,Hungary [8]Institute of Ecology and Botany,HUN-REN Centre for Ecological Research,Alkotmany utca 2-4,2163,Vácrátót,Hungary [9]Doctoral School of Biology,University of Szeged,Közép fasor 52,6726,Szeged,Hungary

出　　处：《Forest Ecosystems》2025年第2期209-219,共11页森林生态系统(英文版)

基　　金：funded by the National Research,Development and Innovation Office(NKFIH FK 142428 grant);The contribution of Z.B.was supported by the János Bolyai Research Scholarship of the Hungarian Academy of Sciences and by the New National Excellence Program of the Ministry for Culture and Innovation from the source of the National Research,Development and Innovation Fund(ÚNKP-23-5-SZTE-697);K.F.was supported by the New National Excellence Program of the Ministry for Culture and Innovation from the source of the National Research,Development and Innovation Fund(ÚNKP-23-3-SZTE-441);C.T.was supported by the NKFIH K 146137 grant;A.E-V.was supported by the long-term research development project of the Czech Academy of Sciences(RVO 67985939).

摘　　要：Topographic complexity supports the maintenance of a high diversity of microhabitats,which may act as important‘safe havens’-or microrefugia-for biodiversity.Microrefugia are sites with specific environmental conditions that facilitate the persistence of species during environmental changes and exhibit unique ecoevolutionary dynamics.However,our knowledge about how topographic complexity and related ecoevolutionary selective forces influence the functional and phylogenetic signatures of species assemblages in microrefugia is very limited.Although the conceptual framework on the systematic integration of plant functional traits into the study of refugia is well established,more empirical studies on functional trait composition and functional diversity in refugia are urgently needed for more effective conservation.Here we analyzed the distribution of various plant functional traits and phylogenetic patterns in microhabitats(south-and north-facing slopes,and bottoms)of 30 large topographic depressions(i.e.doline microrefugia)and microhabitats of the surrounding plateaus in two distant forested karst regions.We found that plant assemblages in the understory of dolines and their surroundings are characterized by unique functional values and combinations of traits.Doline bottoms had the highest functional diversity among doline microhabitats and supported plant assemblages with considerably different trait compositions from the plateaus.Bottoms also had the highest phylogenetic diversity.These results suggest that topographic complexity in forested dolines has a significant effect on the distribution of plant functional traits in the understory.High functional and phylogenetic diversity in doline bottoms can have important consequences for the long-term survival of plant populations,highlighting that these microhabitats may provide a higher resilience and support an adaptive community-level response to natural and anthropogenic stressors.Understanding mechanisms that drive the survival of species within microrefugi

关 键 词：DOLINE Forest herbs Functional diversity MICROCLIMATE MICROHABITAT Phylogenetic diversity Species trait Vegetation 

分 类 号：Q948[生物学—植物学]