Bias in freshwater biodiversity sampling : the case of Iberian water beetles

Sánchez Fernández, David; Lobo, Jorge M.; Abellán, Pedro; Ribera, Ignacio; Millán, Andrés

Publication:
Bias in freshwater biodiversity sampling : the case of Iberian water beetles

dc.contributor.author	Sánchez Fernández, David
dc.contributor.author	Lobo, Jorge M.
dc.contributor.author	Abellán, Pedro
dc.contributor.author	Ribera, Ignacio
dc.contributor.author	Millán, Andrés
dc.contributor.department	Ecología e Hidrología
dc.date.accessioned	2024-02-05T11:49:04Z
dc.date.available	2024-02-05T11:49:04Z
dc.date.submitted	2008
dc.description	©2008. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/ This document is the Accepted version of a Published Work that appeared in final form in Diversity and Distributions	es
dc.description.abstract	Extensive distributional data bases are key tools in ecological research, and good-quality data are required to provide reliable conservation strategies and an understanding of biodiversity patterns and processes. Although the evaluation of data bases requires the incorporation of estimates of sampling effort and bias, no studies have focused on these aspects for freshwater biodiversity data. We used here a comprehensive data base of water beetles from the Iberian Peninsula and the Balearic Islands, and examine whether these data provide an unbiased, reliable picture of their diversity and distribution in the study area. Based on theoretical estimates using the Clench function on the accumulated number of records as a surrogate of sampling effort, about a quarter of the Iberian and Balearic 50 × 50 km Universal Transverse Mercator grid cells can be considered well prospected, with more than 70% of the theoretical species richness actually recorded. These well-surveyed cells are not evenly distributed across biogeographical and physicoclimatic subregions, reflecting some geographical bias in the distribution of sampling effort. Our results suggest that recording was skewed by relatively simple variables affecting collector activity, such as the perceived ‘attractiveness’ of mountainous landscapes and protected areas with recently described species, and accessibility of sampling sites (distance from main research centres). We emphasize the importance of these evaluation exercises, which are useful to locate areas needed of further sampling as well as to identify potential biases in the distribution of current biodiversity patterns.	es
dc.format	application/pdf	es
dc.format.extent	9	es
dc.identifier.citation	Diversity and Distributions, (Diversity Distrib.) (2008) 14, 754–762
dc.identifier.issn	1366-9516
dc.identifier.issn	1472-4642
dc.identifier.uri	http://hdl.handle.net/10201/138630
dc.language	eng	es
dc.publisher	Wiley	es
dc.relation	Sin financiación externa a la Universidad	es
dc.rights	info:eu-repo/semantics/openAccess	es
dc.rights	Attribution-NonCommercial-NoDerivatives 4.0 Internacional	*
dc.rights.uri	http://creativecommons.org/licenses/by-nc-nd/4.0/	*
dc.subject	Completeness	es
dc.subject	data base	es
dc.subject	freshwater biodiversity	es
dc.subject	Iberian Peninsula	es
dc.subject	sampling bias	es
dc.subject	water beetles	es
dc.subject.other	CDU::5 - Ciencias puras y naturales::57 - Biología	es
dc.title	Bias in freshwater biodiversity sampling : the case of Iberian water beetles	es
dc.type	info:eu-repo/semantics/article	es
dspace.entity.type	Publication	es