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Clear-cuts are temporary habitats, not matrix, for endangered grassland burnet moths (Zygaena spp.)

Bergman, Karl-Olof and Burman, Joseph and Jonason, Dennis and Larsson, Mattias and Ryrholm, Nils and Westerberg, Lars and Milberg, Per (2020). Clear-cuts are temporary habitats, not matrix, for endangered grassland burnet moths (Zygaena spp.). Journal of Insect Conservation. 24 , 269-277
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Abstract

Burnet moths (Zygaena spp.) are day-flying Lepidoptera considered indicative of species-rich grasslands. In the present study, our aim was to clarify whether clear-cuts are habitat, supporting habitat or matrix for three species of Zygaena. We did so by sampling these species with sex pheromones on 48 clear-cuts, varying in amount of host and nectar plants, in southern Sweden. To compare the efficiency of such sampling, we also conducted transect walks on these clearcuts. Overall, host-plants on clear-cuts best explained the abundance of Zygaena spp. recorded, better than nectar-plants or connectivity with nearby grasslands. These results indicate that clear-cuts with an abundance of host plants are used as a fully functional habitat, and not a supporting habitat in the sense of only providing nectar. There is no support in these results for considering clear-cuts as an inert matrix. With about half the work-effort, pheromone traps recorded 100 times more Zygaena spp. as transect walks. The poor correspondence between observations during transects walks and pheromone trap catches suggest Zygaena spp. being difficult to monitor by transect walks. In contrast to grasslands, clear-cuts are short-term in nature requiring repeated recolonization, indicating the importance of permanent grasslands. However, clear-cuts are important temporary insect habitats due to their great acreage, and suitable management can increase the time they remain a habitat.

Authors/Creators:Bergman, Karl-Olof and Burman, Joseph and Jonason, Dennis and Larsson, Mattias and Ryrholm, Nils and Westerberg, Lars and Milberg, Per
Title:Clear-cuts are temporary habitats, not matrix, for endangered grassland burnet moths (Zygaena spp.)
Year of publishing :2020
Volume:24
Page range:269-277
Number of Pages:9
Publisher:Springer
ISSN:1366-638X
Language:English
Publication Type:Journal article
Article category:Scientific peer reviewed
Version:Published version
Copyright:Creative Commons: Attribution 4.0
Full Text Status:Public
Subjects:(A) Swedish standard research categories 2011 > 1 Natural sciences > 106 Biological Sciences (Medical to be 3 and Agricultural to be 4) > Ecology
Keywords:Clear-cut, Day-flying moth, Forestry, Landscape, Zygaena
URN:NBN:urn:nbn:se:slu:epsilon-p-105193
Permanent URL:
http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-p-105193
Additional ID:
Type of IDID
DOI10.1007/s10841-019-00193-3
Web of Science (WoS)000522425500005
ID Code:16903
Faculty:LTV - Fakulteten för landskapsarkitektur, trädgårds- och växtproduktionsvetenskap
Department:(LTJ, LTV) > Department of Plant Protection Biology
Deposited By: SLUpub Connector
Deposited On:06 May 2020 11:49
Metadata Last Modified:06 May 2020 11:49

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