Oviposition preferences and larval survival of the marsh fritillary butterfly: The adverse impact of grazing

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Johansson, VictorLinköpings universitet,Biologi,Tekniska fakulteten,Linköping University, Sweden;Calluna AB, Sweden (författare)

Oviposition preferences and larval survival of the marsh fritillary butterfly : The adverse impact of grazing

Artikel/kapitelEngelska2024

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John Wiley & Sons,2024
printrdacarrier

Nummerbeteckningar

LIBRIS-ID:oai:DiVA.org:lnu-128438
https://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-128438URI
https://doi.org/10.1111/icad.12734DOI
https://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-201665URI

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Språk:engelska
Sammanfattning på:engelska

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Ämneskategori:art swepub-publicationtype

Anmärkningar

Funding Agencies|Heidelberg Material AB; Swedish National Research Programme on Climate, Formas [2018-02846, 2021-02142]; Stiftelsen Oscar och Lili Lamms Minne [FO2020-0023]
Species-rich semi-natural grasslands have been lost during the last century due to agricultural intensification. This has had large negative consequences for many specialised species, including grassland butterflies. To prevent further loss, management regimes in the remaining grasslands must maintain habitat quality over time, and we therefore need to understand the habitat preferences of specialised species and how different management regimes affect their survival. We studied the egg-laying preferences of the threatened marsh fritillary butterfly in relation to host plant properties, microclimate and management (grazing) on Gotland, Sweden. Moreover, we followed the survival of eggs and larvae from 27 egg batches during a period of 8 months (from June 2020 to March 2021) in grazed and ungrazed areas. We found 92 egg batches in total and the average number of eggs was 184.5. Egg-laying probability increased with increasing host plant size and abundance, and environmental variables associated with a warm microclimate (low grass cover, low vegetation height and south-facing edges). The 27 egg batches that were followed over time had on average 203 eggs in June. Roughly 28% of the eggs developed into larvae, and about 17% of these survived over the entire study period, resulting in an overall 4.7% survival. Egg survival was higher in ungrazed habitats compared with grazed; in March (post-hibernation), there were almost nine times more eggs in ungrazed habitats. This study highlights the complex habitat ecology of specialised butterflies and underscores the detrimental impact of intense grazing, advocating for rotational grazing or mowing regimes. We study oviposition preferences and survival of both eggs and larvae (post-hibernation) for the marsh fritillary, in relation to host plant availability, microclimate conditions and grazing management Egg-laying probability increased with increasing host plant size and abundance, and environmental variables associated with a warm microclimate (low grass cover, low vegetation height and south-facing edges) Egg survival was clearly higher in ungrazed habitats compared with grazed; in March (post-hibernation), there were almost nine times more eggs in ungrazed habitats. image

Ämnesord och genrebeteckningar

NATURVETENSKAP Biologi Ekologi hsv//swe
NATURAL SCIENCES Biological Sciences Ecology hsv//eng
calcareous grasslands
conservation strategies
egg-laying
Euphydryas aurinia
habitat preferences
host plant selection
Ecology
Ekologi

Biuppslag (personer, institutioner, konferenser, titlar ...)

Sawenfalk, Demieka SeabrookCalluna AB, Linkoping, Sweden (författare)
Bergman, Karl-OlofLinköpings universitet,Biologi,Tekniska fakulteten,Linköping University, Sweden(Swepub:liu)karbe95 (författare)
Kindvall, OskarCalluna AB, Linkoping, Sweden (författare)
Askling, JohnCalluna AB, Linkoping, Sweden (författare)
Franzén, MarkusLinköpings universitet,Linnéuniversitetet,Institutionen för biologi och miljö (BOM),Linköping University, Sweden,Ctr Ecol & Evolut Microbial Model Syst EEMiS,Biologi,Tekniska fakulteten,Linnaeus Univ, Sweden(Swepub:liu)marfr45 (författare)
Linköpings universitetBiologi (creator_code:org_t)

Sammanhörande titlar

Ingår i:Insect Conservation and Diversity: John Wiley & Sons17:4, s. 642-6501752-458X1752-4598

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Insect Conservation and Diversity (Sök värdpublikationen i LIBRIS)

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Av författaren/redakt...: Johansson, Victo ...; Sawenfalk, Demie ...; Bergman, Karl-Ol ...; Kindvall, Oskar; Askling, John; Franzén, Markus

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NATURVETENSKAP: NATURVETENSKAP; och Biologi; och Ekologi

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Av lärosätet: Linnéuniversitetet; Linköpings universitet

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