Developing robust field survey protocols in landscape ecology: a case study on birds, plants and butterflies

Verfasser / Beitragende:
[Jacqueline Loos, Jan Hanspach, Henrik von Wehrden, Monica Beldean, Cosmin Moga, Joern Fischer]
Ort, Verlag, Jahr:
2015
Enthalten in:
Biodiversity and Conservation, 24/1(2015-01-01), 33-46
Format:
Artikel (online)
ID: 605526370
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024 7 0 |a 10.1007/s10531-014-0786-3  |2 doi 
035 |a (NATIONALLICENCE)springer-10.1007/s10531-014-0786-3 
245 0 0 |a Developing robust field survey protocols in landscape ecology: a case study on birds, plants and butterflies  |h [Elektronische Daten]  |c [Jacqueline Loos, Jan Hanspach, Henrik von Wehrden, Monica Beldean, Cosmin Moga, Joern Fischer] 
520 3 |a 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. 
540 |a The Author(s), 2014 
690 7 |a Detectability  |2 nationallicence 
690 7 |a Hierarchical model  |2 nationallicence 
690 7 |a Landscape heterogeneity  |2 nationallicence 
690 7 |a Species distribution  |2 nationallicence 
690 7 |a Species richness  |2 nationallicence 
690 7 |a Statistical power  |2 nationallicence 
690 7 |a Study design  |2 nationallicence 
700 1 |a Loos  |D Jacqueline  |u Faculty of Sustainability, Leuphana University, Scharnhorststrasse 1, 21335, Lüneburg, Germany  |4 aut 
700 1 |a Hanspach  |D Jan  |u Faculty of Sustainability, Leuphana University, Scharnhorststrasse 1, 21335, Lüneburg, Germany  |4 aut 
700 1 |a von Wehrden  |D Henrik  |u Faculty of Sustainability, Leuphana University, Scharnhorststrasse 1, 21335, Lüneburg, Germany  |4 aut 
700 1 |a Beldean  |D Monica  |u Faculty of Biology and Geology, Babeş-Bolyai University Cluj-Napoca, Strada Republicii 42, 400015, Cluj-Napoca, Romania  |4 aut 
700 1 |a Moga  |D Cosmin  |u Educational-Ecological Association Ecotransilvania, Strada Gării 5, 545400, Sighişoara, Romania  |4 aut 
700 1 |a Fischer  |D Joern  |u Faculty of Sustainability, Leuphana University, Scharnhorststrasse 1, 21335, Lüneburg, Germany  |4 aut 
773 0 |t Biodiversity and Conservation  |d Springer Netherlands  |g 24/1(2015-01-01), 33-46  |x 0960-3115  |q 24:1<33  |1 2015  |2 24  |o 10531 
856 4 0 |u https://doi.org/10.1007/s10531-014-0786-3  |q text/html  |z Onlinezugriff via DOI 
898 |a BK010053  |b XK010053  |c XK010000 
900 7 |a Metadata rights reserved  |b Springer special CC-BY-NC licence  |2 nationallicence 
908 |D 1  |a research-article  |2 jats 
949 |B NATIONALLICENCE  |F NATIONALLICENCE  |b NL-springer 
950 |B NATIONALLICENCE  |P 856  |E 40  |u https://doi.org/10.1007/s10531-014-0786-3  |q text/html  |z Onlinezugriff via DOI 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Loos  |D Jacqueline  |u Faculty of Sustainability, Leuphana University, Scharnhorststrasse 1, 21335, Lüneburg, Germany  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Hanspach  |D Jan  |u Faculty of Sustainability, Leuphana University, Scharnhorststrasse 1, 21335, Lüneburg, Germany  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a von Wehrden  |D Henrik  |u Faculty of Sustainability, Leuphana University, Scharnhorststrasse 1, 21335, Lüneburg, Germany  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Beldean  |D Monica  |u Faculty of Biology and Geology, Babeş-Bolyai University Cluj-Napoca, Strada Republicii 42, 400015, Cluj-Napoca, Romania  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Moga  |D Cosmin  |u Educational-Ecological Association Ecotransilvania, Strada Gării 5, 545400, Sighişoara, Romania  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Fischer  |D Joern  |u Faculty of Sustainability, Leuphana University, Scharnhorststrasse 1, 21335, Lüneburg, Germany  |4 aut 
950 |B NATIONALLICENCE  |P 773  |E 0-  |t Biodiversity and Conservation  |d Springer Netherlands  |g 24/1(2015-01-01), 33-46  |x 0960-3115  |q 24:1<33  |1 2015  |2 24  |o 10531