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231225s2021 xx |||||o 00| ||eng c |
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|a 10.1111/cobi.13610
|2 doi
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|a pubmed24n1046.xml
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|a (NLM)32808693
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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| 100 |
1 |
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|a Mentges, Andrea
|e verfasserin
|4 aut
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| 245 |
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|a Effects of site-selection bias on estimates of biodiversity change
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|c 2021
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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|a ƒa Online-Ressource
|b cr
|2 rdacarrier
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|a Date Completed 26.04.2021
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|a Date Revised 26.04.2021
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a © 2020 The Authors. Conservation Biology published by Wiley Periodicals LLC on behalf of Society for Conservation Biology.
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|a Estimates of biodiversity change are essential for the management and conservation of ecosystems. Accurate estimates rely on selecting representative sites, but monitoring often focuses on sites of special interest. How such site-selection biases influence estimates of biodiversity change is largely unknown. Site-selection bias potentially occurs across four major sources of biodiversity data, decreasing in likelihood from citizen science, museums, national park monitoring, and academic research. We defined site-selection bias as a preference for sites that are either densely populated (i.e., abundance bias) or species rich (i.e., richness bias). We simulated biodiversity change in a virtual landscape and tracked the observed biodiversity at a sampled site. The site was selected either randomly or with a site-selection bias. We used a simple spatially resolved, individual-based model to predict the movement or dispersal of individuals in and out of the chosen sampling site. Site-selection bias exaggerated estimates of biodiversity loss in sites selected with a bias by on average 300-400% compared with randomly selected sites. Based on our simulations, site-selection bias resulted in positive trends being estimated as negative trends: richness increase was estimated as 0.1 in randomly selected sites, whereas sites selected with a bias showed a richness change of -0.1 to -0.2 on average. Thus, site-selection bias may falsely indicate decreases in biodiversity. We varied sampling design and characteristics of the species and found that site-selection biases were strongest in short time series, for small grains, organisms with low dispersal ability, large regional species pools, and strong spatial aggregation. Based on these findings, to minimize site-selection bias, we recommend use of systematic site-selection schemes; maximizing sampling area; calculating biodiversity measures cumulatively across plots; and use of biodiversity measures that are less sensitive to rare species, such as the effective number of species. Awareness of the potential impact of site-selection bias is needed for biodiversity monitoring, the design of new studies on biodiversity change, and the interpretation of existing data
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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4 |
|a alpha diversity
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| 650 |
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|a alpha多样性
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| 650 |
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4 |
|a cambios en la riqueza
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| 650 |
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|a community dynamics
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| 650 |
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|a conceptual model
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| 650 |
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|a dinámicas comunitarias
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| 650 |
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4 |
|a diversidad alfa
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| 650 |
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|a local trends
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| 650 |
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|a modelo conceptual
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| 650 |
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|a richness change
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| 650 |
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4 |
|a sampling bias
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| 650 |
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|a sesgo de muestreo
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| 650 |
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|a temporal trends
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| 650 |
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4 |
|a tendencias locales
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| 650 |
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4 |
|a tendencias temporales
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| 650 |
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4 |
|a 丰富度变化
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| 650 |
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|a 局部趋势
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| 650 |
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4 |
|a 抽样偏差
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| 650 |
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|a 时间趋势
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| 650 |
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|a 概念模型
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| 650 |
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4 |
|a 群落动态
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| 700 |
1 |
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|a Blowes, Shane A
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Hodapp, Dorothee
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Hillebrand, Helmut
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Chase, Jonathan M
|e verfasserin
|4 aut
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| 773 |
0 |
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|i Enthalten in
|t Conservation biology : the journal of the Society for Conservation Biology
|d 1999
|g 35(2021), 2 vom: 15. Apr., Seite 688-698
|w (DE-627)NLM098176803
|x 1523-1739
|7 nnns
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| 773 |
1 |
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|g volume:35
|g year:2021
|g number:2
|g day:15
|g month:04
|g pages:688-698
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|u http://dx.doi.org/10.1111/cobi.13610
|3 Volltext
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|h 688-698
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