Ecological niche models and patterns of richness and endemism of the southern Andean genus Eurymetopum (Coleoptera, Cleridae)

Revista Brasileira de Entomologia

Tania Escalante²  Miguel Linaje¹  Patricia Illoldi-rangel¹  Miguel Rivas¹  Patricia Estrada¹  Francisca Neira¹  Juan J. Morrone² 

[1] ,Universidad Nacional Autónoma de México Facultad de Ciencias Departamento de Biología EvolutivaMexico D. F. ,Mexico

关键词: Andean region;    Central Chilean subregion;    Maxent;    NDM;    Subantarctic subregion;    Maxent;    NDM;    Región Andina;    subregión Chilena Central;    subregión Subantártica;   

DOI  :  10.1590/S0085-56262009000300011

来源: SciELO

【 摘 要 】

Eurymetopum is an Andean clerid genus with 22 species. We modeled the ecological niches of 19 species with Maxent and used them as potential distributional maps to identify patterns of richness and endemicity. All modeled species maps were overlapped in a single map in order to determine richness. We performed an optimality analysis with NDM/VNDM in a grid of 1º latitude-longitude in order to identify endemism. We found a highly rich area, located between 32º and 41º south latitude, where the richest pixels have 16 species. One area of endemism was identified, located in the Maule and Valdivian Forest biogeographic provinces, which extends also to the Santiago province of the Central Chilean subregion, and contains four endemic species (E. parallelum, E. prasinum, E. proteus, and E. viride), as well as 16 non-endemic species. The sympatry of these phylogenetically unrelated species might indicate ancient vicariance processes, followed by episodes of dispersal. Based on our results, we suggest a close relationship between these provinces, with the Maule representing a complex area.

【 授权许可】

CC BY-NC-ND   
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