Article (Scientific journals)
Influence of sampling effort on saproxylic beetle diversity assessment: Implications for insect monitoring studies in European temperate forests
Parmain, G.; Dufrêne, Marc; Brin, A. et al.
2013In Agricultural and Forest Entomology
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Influence-of-sampling-effort-on-saproxylic-beetle-diversity-assessment-Implications-for-insect-monitoring-studies-in-European-temperate-forests_2013_Agricultural-and-Forest-E.pdf
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Keywords :
Biodiversity; Dissimilarity; Flight-interception trap; Replication; Species richness
Abstract :
[en] Saproxylic beetle diversity monitoring provides a tool for estimating the efficiency of forest conservation measures. Flight interception traps are commonly employed to monitor beetle assemblages, although little explicit knowledge of the efficiency of this trapping method is available. The present study investigated how slight changes in sampling effort can influence species richness and species composition of assemblages in data sets from standard window-flight traps. At both trap and plot levels, an additional year or an additional trap provided a 50% increase in the number of species detected (a 75% increase for rare species) and resulted in a different estimated composition of the assemblages. Adding 2 or 3years of sampling gave twice as many species and resulted in assemblages that were 50% dissimilar. Increases in the detection of species and the dissimilarity of assemblages were similarly affected along a gradient of forest conditions, suggesting that changes in sampling effort were not affected by forest condition. At the forest level, year or trap replication provided smaller increases in species richness (31% and 25%, respectively). Within sites, distance measures in species composition between traps did not differ significantly when based on 1 or 2years of data. Using two traps per plot compared with one trap influenced comparisons between stand types, based on species richness, in 25% of the cases. Species detection was similarly increased by either year replication or trap replication. The results of the present study highlight the significant role played by finescale patterns of habitat structure and inter-annual variation with respect to determining catch size and assemblages of saproxylic species. © 2013 The Royal Entomological Society.
Disciplines :
Entomology & pest control
Environmental sciences & ecology
Author, co-author :
Parmain, G.;  National Laboratory of Forest Entomology National Forest Office (ONF), 2 rue Charles Péguy F-11500 Quillan France, Natural Patrimony Department National Museum of Natural History 36 rue Geoffroy St Hilaire CP 41 75 231 Paris Cedex 05 France, 'Forest Ecosystems' Research Unit National Research Institute of Science and Technology for Environment and Agriculture (IRSTEA), Domaine des Barres F-45290 Nogent-sur-Vernisson France
Dufrêne, Marc  ;  Université de Liège - ULiège > Forêts, Nature et Paysage > Biodiversité et Paysage
Brin, A.;  Purpan Engineering School University of Toulouse UMR INPT/INRA 1201 Dynafor, 75 voie du T.O.E.C. BP 57611, F-31076 Toulouse Cedex 03 France
Bouget, C.;  'Forest Ecosystems' Research Unit National Research Institute of Science and Technology for Environment and Agriculture (IRSTEA), Domaine des Barres F-45290 Nogent-sur-Vernisson France
Language :
English
Title :
Influence of sampling effort on saproxylic beetle diversity assessment: Implications for insect monitoring studies in European temperate forests
Publication date :
2013
Journal title :
Agricultural and Forest Entomology
ISSN :
1461-9555
eISSN :
1461-9563
Publisher :
Blackwell Publishing
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 24 March 2013

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