Ecological niches and interspecific associations of dominant species within an endangered Gymnadenia conopsea(L.)R.Br.community
Based on an ecological survey of the endangered Gymnadenia conopsea(L.)R.Br.community dis-tributed in Shunwangping,Lishan National Nature Reserve,Shanxi Province,China,the ecological niche characteristics,interspecific relationships,and stability of the community were explored.Results showed that:(1)The community exhibited high species richness,comprising 48 plant species from 42 genera and 22 fami-lies.As an endemic species,G.conopsea occupied a specialized ecological niche characterized by low popu-lation density and stringent habitat requirements.(2)G.conopsea demonstrated the broadest ecological niche,with a high degree of overlap with other species,leading to heightened interspecies competition and relative instability within the community.(3)In the surviving G.conopsea community,interspecies associa-tions were relatively weak,indicating a tendency toward independence among species.Furthermore,the inter-specific relationships among the predominant herbaceous species were not fully developed.Our findings indi-cate that the community is currently in an intermediate to early stage of succession,exhibiting low stability and susceptibility to potential disruption and degradation.Overall,this study highlights the interdependence and re-source utilization capabilities among various species within the G.conopsea community.
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