Revealing hidden species distribution with pheromones: the caseof Synanthedon vespiformis (Lepidoptera: Sesiidae) in Sweden
2016 (English)In: Journal of Insect Conservation, ISSN 1366-638X, E-ISSN 1572-9753, Vol. 20, no 1, 11-21 p.Article in journal (Refereed) Published
Synanthedon vespiformis L. (Lepidoptera:Sesiidae) is considered a rare insect in Sweden, discoveredin 1860, with only a few observations recorded until a sexpheromone attractant became available recently. This studydetails a national survey conducted using pheromones as asampling method for this species. Through pheromonetrapping we captured 439 specimens in Southern Sweden at77 sites, almost tripling the number of previously reportedrecords for this species. The results suggest that S. vespiformisis truly a rare species with a genuinely scattereddistribution, but can be locally abundant. Habitat analyseswere conducted in order to test the relationship betweenhabitat quality and the number of individuals caught. InSweden, S. vespiformis is thought to be associated with oakhosts, but our attempts to predict its occurrence by theabundance of oaks yielded no significant relationships. Wetherefore suggest that sampling bias and limited knowledgeon distribution may have led to the assumption that thisspecies is primarily reliant on oaks in the northern part ofits range, whereas it may in fact be polyphagous, similar toS. vespiformis found as an agricultural pest in Central andSouthern Europe. We conclude that pheromones canmassively enhance sampling potential for this and otherrare lepidopteran species. Large-scale pheromone-basedsurveys provide a snapshot of true presences and absencesacross a considerable part of a species national distributionrange, and thus for the first time provide a viable means ofsystematically assessing changes in distribution over timewith high spatiotemporal resolution.
Place, publisher, year, edition, pages
2016. Vol. 20, no 1, 11-21 p.
Ecology, Saproxylic, Moth, Indicator of species richness, Conservation, Monitoring
Ecology Environmental Sciences related to Agriculture and Land-use
IdentifiersURN: urn:nbn:se:liu:diva-125596DOI: 10.1007/s10841-015-9835-9ISI: 000371086000002OAI: oai:DiVA.org:liu-125596DiVA: diva2:907104
Funding agencies: Stiftelsen Eklandskapet i Linkopings kommun; Marie-Claire Cronstedts Stiftelse; Swedish WWF; Tranemala Foundation; Skogssallskapet; Region Skanes miljovardsfond; SLU Partnerskap Alnarp; IC-E3 Linnaeus grant (Formas, SLU)2016-02-262016-02-262016-03-21