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Mobility, habitat selection and population connectivity of the butterfly Lycaena hellein in central Sweden

Modin, Hanna and Öckinger, Erik (2020). Mobility, habitat selection and population connectivity of the butterfly Lycaena hellein in central Sweden. Journal of Insect Conservation. 24 , 821-831
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Abstract

To be able to predict habitat quality and potential distribution of threatened species is key to developing successful conservation strategies for threatened species with fragmented distributions. The aim of this study was to assess factors that limit the local distribution and density ofLycaena helle, an endangered butterfly, in central Sweden, and to estimate its mobility in order to classify local populations according to their importance for the connectivity on a regional level. An additional aim was to test ifL. hellehabitat quality could be assessed using remotely-sensed data such as laser scanning (LiDAR). We derived potential predictors ofL. helleoccurrence from laser scanning data and used a resource selection function to assess their predictive power. We used a mark-recapture approach to studyL. hellemovement and estimate dispersal distances. The probability of occurrence ofL. helleincreased with higher solar irradiation and was negatively affected by sloping terrain, but the LiDAR data generally had low predictive power. Population density increased with host plant density, but this effect was weak. The mark-recapture study confirmed thatL. helleis very sedentary, with a mean movement distance of only 114 m and a maximum of 600 m. The studied population extends over a large network of interconnected linear habitats, which probably facilitates dispersal and thereby population persistence. Our study highlight the importance of a warm micro-climate and of man-made habitats like road verges and power-line corridors for the conservation ofL. helle.

Authors/Creators:Modin, Hanna and Öckinger, Erik
Title:Mobility, habitat selection and population connectivity of the butterfly Lycaena hellein in central Sweden
Year of publishing :2020
Volume:24
Page range:821-831
Number of Pages:11
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:Dispersal, Lepidoptera, Mark-recapture, Metapopulation, Resource selection function, Stepping stone
URN:NBN:urn:nbn:se:slu:epsilon-p-107121
Permanent URL:
http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-p-107121
Additional ID:
Type of IDID
DOI10.1007/s10841-020-00254-y
Web of Science (WoS)000550174800001
ID Code:17627
Faculty:NJ - Fakulteten för naturresurser och jordbruksvetenskap
Department:(NL, NJ) > Dept. of Ecology
(S) > Dept. of Ecology
Deposited By: SLUpub Connector
Deposited On:29 Sep 2020 13:45
Metadata Last Modified:29 Sep 2020 13:51

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