Exclusion of tourist species from assemblages in ecological studies:a methodological approach using spiders

作     者：María Florencia Nadal Alda González Gilberto Avalos María Florencia Nadal;Alda González;Gilberto Avalos

作者机构：Consejo Nacional de Investigaciones Científicas y Técnicas(CONICET)Buenos AiresArgentina Laboratorio de Biología de los ArtrópodosFacultad de Ciencias Exactas y Naturales y AgrimensuraUniversidad Nacional del NordesteAvenida Libertad 54703400 CorrientesArgentina Centro de Estudios Parasitológicos y de Vectores(CEPAVE-UNLP)Boulevard 120 s/n(e/60-64)1900 La PlataArgentina 

出 版 物：《Ecological Processes》 (生态过程（英文）)

年 卷 期：2022年第11卷第1期

页      面：825-844页

核心收录：

学科分类：0907[农学-林学] 08[工学] 0829[工学-林业工程] 09[农学] 

基　　金：This research was financed by project PI F 003/2015 of the SGCyT-UNNE(Argentina) by a CONICET doctoral fellowship awarded to the first author 

主　　题：Pseudo-rare species Richness estimation Indicator value Habitat 

摘      要：Background:The exclusion of tourist species from samples is important to avoid bias in community ***,in practice,this is a very difficult *** commonly used methods by researchers,when the habitat of the species is not known,have several shortcomings:first,they exclude not only pseudo-rare species but also genuinely rare species;second,the results obtained with those methods depend on the abundance of the sampling;and third,they follow very subjective *** aims of this study were:(i)to propose a methodology to detect and exclude habitat-tourist species from the database used to carry out analyses in community ecology studies,(ii)to evaluate how the presence of habitat-tourist species affects the richness estimates,and(iii)to assess the effect of including juvenile spiders in the detection of tourist species and the effect of removing them from the richness ***:When the adult+juvenile dataset was considered,twenty-one habitat-tourist species were detected:8 in forest foliage,11 in forest leaf litter,and 2 in *** habitat-tourist species were considered with this dataset,richness overestimation was significant in foliage and in leaf litter,and the final slopes of the richness estimation curves were significantly steeper in leaf *** only the adult dataset was considered,eight habitat-tourist species were detected:3 in forest foliage,4 in forest leaf litter,and just one in *** inclusion of habitat-tourist species in this dataset showed an overestimation of richness,but this was not ***:The proposed methodology contributes to solving the problem of tourist species,which was recognized as one of the great problems in biodiversity *** study showed that common estimators overestimate species richness when habitat-tourist species are included,leading to erroneous ***,this research showed that the inclusion of juveniles(***)could improve the analysis outputs be