caa a22 4500 605526370 CHVBK 20210128100803.0 cr unu---uuuuu 210128e20150101xx s 000 0 eng 10.1007/s10531-014-0786-3 doi (NATIONALLICENCE)springer-10.1007/s10531-014-0786-3 Developing robust field survey protocols in landscape ecology: a case study on birds, plants and butterflies [Elektronische Daten] [Jacqueline Loos, Jan Hanspach, Henrik von Wehrden, Monica Beldean, Cosmin Moga, Joern Fischer] Sustainable land management requires scientists to provide reliable data on diversity distribution patterns. Resource restrictions limit the affordable sampling effort, both with respect to number of survey sites and amount of effort per site. We compared different levels of survey effort in a case study in Central Romania, varying the number of repeats per site and number of survey sites. Target taxa were plants, birds and butterflies. For plants, we surveyed three 10m2 plots and ten plots of 1m2 at each site. For birds, we used point counts and for butterflies Pollard walks, in both cases with four repeats. We fitted hierarchical community models to estimate true species richness per site. Estimates of true species richness per site strongly correlated with observed species richness. However, hierarchical community models yielded unrealistically high estimates of true species richness per site, hence we used observed richness for further analyses. For each species group, we compared diversity indices from subsets of the dataset with the full dataset. Findings obtained with a reduced survey effort reflected well those obtained with full effort. Moreover, we conducted a power analysis to assess how the number of survey sites affected the minimum detectable effect of landscape heterogeneity on species richness, and found there was an exponential decrease in the minimum detectable effect with increasing number of sites. In combination, our findings suggest that assessing broad diversity patterns in abundant and readily detectable organisms may be possible with relatively low survey effort per site. Our study demonstrates the utility of conducting pilot studies prior to designing large-scale studies on diversity distribution patterns. The Author(s), 2014 Detectability nationallicence Hierarchical model nationallicence Landscape heterogeneity nationallicence Species distribution nationallicence Species richness nationallicence Statistical power nationallicence Study design nationallicence Loos Jacqueline Faculty of Sustainability, Leuphana University, Scharnhorststrasse 1, 21335, Lüneburg, Germany aut Hanspach Jan Faculty of Sustainability, Leuphana University, Scharnhorststrasse 1, 21335, Lüneburg, Germany aut von Wehrden Henrik Faculty of Sustainability, Leuphana University, Scharnhorststrasse 1, 21335, Lüneburg, Germany aut Beldean Monica Faculty of Biology and Geology, Babeş-Bolyai University Cluj-Napoca, Strada Republicii 42, 400015, Cluj-Napoca, Romania aut Moga Cosmin Educational-Ecological Association Ecotransilvania, Strada Gării 5, 545400, Sighişoara, Romania aut Fischer Joern Faculty of Sustainability, Leuphana University, Scharnhorststrasse 1, 21335, Lüneburg, Germany aut Biodiversity and Conservation Springer Netherlands 24/1(2015-01-01), 33-46 0960-3115 24:1<33 2015 24 10531 https://doi.org/10.1007/s10531-014-0786-3 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s10531-014-0786-3 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Loos Jacqueline Faculty of Sustainability, Leuphana University, Scharnhorststrasse 1, 21335, Lüneburg, Germany aut NATIONALLICENCE 700 1- Hanspach Jan Faculty of Sustainability, Leuphana University, Scharnhorststrasse 1, 21335, Lüneburg, Germany aut NATIONALLICENCE 700 1- von Wehrden Henrik Faculty of Sustainability, Leuphana University, Scharnhorststrasse 1, 21335, Lüneburg, Germany aut NATIONALLICENCE 700 1- Beldean Monica Faculty of Biology and Geology, Babeş-Bolyai University Cluj-Napoca, Strada Republicii 42, 400015, Cluj-Napoca, Romania aut NATIONALLICENCE 700 1- Moga Cosmin Educational-Ecological Association Ecotransilvania, Strada Gării 5, 545400, Sighişoara, Romania aut NATIONALLICENCE 700 1- Fischer Joern Faculty of Sustainability, Leuphana University, Scharnhorststrasse 1, 21335, Lüneburg, Germany aut NATIONALLICENCE 773 0- Biodiversity and Conservation Springer Netherlands 24/1(2015-01-01), 33-46 0960-3115 24:1<33 2015 24 10531