Silk properties and overwinter survival in gregarious butterfly larvae
(2018) In Ecology and Evolution 8(24).- Abstract
- All organisms are challenged by encounters with parasites, which strongly select for efficient escape strategies in the host. The threat is especially high for gregarious species entering immobile periods, such as diapause. Larvae of the Glanville fritillary butterfly, Melitaea cinxia, spend the winter in diapause in groups of conspecifics each sheltered in a silk-nest. Despite intensive monitoring of the population, we have little understanding of the ecological factors influencing larval survival over the winter in the field. We tested whether qualitative and quantitative properties of the silk-nest contribute to larval survival over diapause. We used comparative proteomics, metabarcoding analyses, microscopic imaging, and in-vitro... (More)
- All organisms are challenged by encounters with parasites, which strongly select for efficient escape strategies in the host. The threat is especially high for gregarious species entering immobile periods, such as diapause. Larvae of the Glanville fritillary butterfly, Melitaea cinxia, spend the winter in diapause in groups of conspecifics each sheltered in a silk-nest. Despite intensive monitoring of the population, we have little understanding of the ecological factors influencing larval survival over the winter in the field. We tested whether qualitative and quantitative properties of the silk-nest contribute to larval survival over diapause. We used comparative proteomics, metabarcoding analyses, microscopic imaging, and in-vitro experiments to compare protein composition of the silk, community composition of the silk-associated microbiota, and silk density from both wild-collected and laboratory-reared families, which survived or died in the field. Although most traits assessed varied across families, only silk density correlated with over-winter survival in the field. The silk nest spun by gregarious larvae before the winter acts as an efficient breathable physical shield that positively affects larval survival during diapause. Such benefit may explain how this costly trait is conserved across populations of this butterfly species, and potentially across other silk-spinning insect species. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/55631e5e-415b-46e2-bb05-e1e3683ead3e
- author
- Duplouy, Anne LU ; Minard, Guillaume ; Rytteri, Susu ; Lahteenaro, Meri and Saastamoinen, Marjo
- publishing date
- 2018
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Ecology and Evolution
- volume
- 8
- issue
- 24
- publisher
- Wiley-Blackwell
- external identifiers
-
- scopus:85057764547
- pmid:30619557
- ISSN
- 2045-7758
- DOI
- 10.1002/ece3.4595
- language
- English
- LU publication?
- no
- id
- 55631e5e-415b-46e2-bb05-e1e3683ead3e
- date added to LUP
- 2018-11-12 15:46:10
- date last changed
- 2022-03-25 05:43:00
@article{55631e5e-415b-46e2-bb05-e1e3683ead3e,
abstract = {{All organisms are challenged by encounters with parasites, which strongly select for efficient escape strategies in the host. The threat is especially high for gregarious species entering immobile periods, such as diapause. Larvae of the Glanville fritillary butterfly, Melitaea cinxia, spend the winter in diapause in groups of conspecifics each sheltered in a silk-nest. Despite intensive monitoring of the population, we have little understanding of the ecological factors influencing larval survival over the winter in the field. We tested whether qualitative and quantitative properties of the silk-nest contribute to larval survival over diapause. We used comparative proteomics, metabarcoding analyses, microscopic imaging, and in-vitro experiments to compare protein composition of the silk, community composition of the silk-associated microbiota, and silk density from both wild-collected and laboratory-reared families, which survived or died in the field. Although most traits assessed varied across families, only silk density correlated with over-winter survival in the field. The silk nest spun by gregarious larvae before the winter acts as an efficient breathable physical shield that positively affects larval survival during diapause. Such benefit may explain how this costly trait is conserved across populations of this butterfly species, and potentially across other silk-spinning insect species.}},
author = {{Duplouy, Anne and Minard, Guillaume and Rytteri, Susu and Lahteenaro, Meri and Saastamoinen, Marjo}},
issn = {{2045-7758}},
language = {{eng}},
number = {{24}},
publisher = {{Wiley-Blackwell}},
series = {{Ecology and Evolution}},
title = {{Silk properties and overwinter survival in gregarious butterfly larvae}},
url = {{http://dx.doi.org/10.1002/ece3.4595}},
doi = {{10.1002/ece3.4595}},
volume = {{8}},
year = {{2018}},
}