Un método para establecer la viabilidad de las poblaciones de la araña trampera Amblyocarenum en áreas urbanas: un estudio piloto

Arnau  Calatayud-Mascarell; Luna  Migueles-Miralles

doi:10.3989/graellsia.2022.v78.329

Authors

Arnau Calatayud-Mascarell Biodiversity Research Institute (IRBio), University of Barcelona https://orcid.org/0000-0003-0627-2616
Luna Migueles-Miralles Biodiversity Research Institute (IRBio), University of Barcelona https://orcid.org/0000-0001-8578-3005

DOI:

https://doi.org/10.3989/graellsia.2022.v78.329

Keywords:

Urbanization, mygalomorph spiders, ecological indicator, land cover, La Safor

Abstract

Amblyocarenum walckenaeri (Lucas, 1846) (Araneae: Mygalomorphae: Nemesiidae) is found in various urban locations in La Safor (Valencia, Spain). We here present a method that might expose the disturbing effect of rapid urban expansion on trapdoor spider populations: counting the year classes of a population as an indicator of its viability. Our results show that most of the sampled urban populations did not include spiderlings. This suggest that Amblyocarenum occur in these urban areas as remnant; aging populations that have difficulties to recruit new generations of specimens and are therefore not viable.

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