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Seasonal polyphenism in life history traits: time costs of direct development in a butterfly
KTH, Skolan för kemivetenskap (CHE), Kemi, Organisk kemi.
KTH, Skolan för kemivetenskap (CHE), Kemi, Organisk kemi.
Vise andre og tillknytning
2010 (engelsk)Inngår i: Behavioral Ecology and Sociobiology, ISSN 0340-5443, E-ISSN 1432-0762, Vol. 64, nr 9, s. 1377-1383Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

Insects with two or more generations per year will generally experience different selection regimes depending on the season, and accordingly show seasonal polyphenisms. In butterflies, seasonal polyphenism has been shown with respect to morphology, life history characteristics and behaviour. In temperate bivoltine species, the directly developing generation is more time-constrained than the diapause generation, and this may affect various life history traits such as mating propensity (time from eclosion to mating). Here, we test whether mating propensity differs between generations in Pieris napi, along with several physiological parameters, i.e. male sex pheromone synthesis, and female ovigeny index and fecundity. As predicted, individuals of the directly developing generation-who have shorter time for pupal development-are more immature at eclosion; males take longer to synthesise the male sex pheromone after eclosion and take longer to mate than diapause generation males. Females show the same physiological pattern; the directly developing females lay fewer eggs than diapausing females during the first days of their life. Nevertheless, the directly developing females mate faster after eclosion than diapausing females, indicating substantial adult time stress in this generation and possibly an adaptive value of shortening the pre-reproductive period. Our study highlights how time stress can be predictably different between generations, affecting both life history and behaviour. By analysing several life history traits simultaneously, we adopt a multi-trait approach to examining how adaptations and developmental constraints likely interplay to shape these seasonal polyphenisms.

sted, utgiver, år, opplag, sider
2010. Vol. 64, nr 9, s. 1377-1383
Emneord [en]
Behavioural polyphenism, Citral, Green-veined white, Phenotypic plasticity, Time constraints, Voltinism
HSV kategori
Identifikatorer
URN: urn:nbn:se:kth:diva-26899DOI: 10.1007/s00265-010-0952-xISI: 000280842600002Scopus ID: 2-s2.0-77955592126OAI: oai:DiVA.org:kth-26899DiVA, id: diva2:373086
Merknad

QC 20101130

Tilgjengelig fra: 2010-11-30 Laget: 2010-11-29 Sist oppdatert: 2017-12-12bibliografisk kontrollert
Inngår i avhandling
1. Pheromone production in the butterfly Pieris napi L
Åpne denne publikasjonen i ny fane eller vindu >>Pheromone production in the butterfly Pieris napi L
2014 (engelsk)Doktoravhandling, med artikler (Annet vitenskapelig)
Abstract [en]

Aphrodisiac and anti-aphrodisiac pheromone production and composition in the green-veined white butterfly Pieris napi L. were investigated.

Aphrodisiac pheromone biosynthesis had different time constraints in butterflies from the diapausing and directly developing generations.

Effects of stable isotope incorporation in adult butterfly pheromone, in the nectar and flower volatiles of  host plants from labeled substrates were measured by solid phase microextraction and gas chromatography–mass spectrometry.

A method to fertilize plants with stable isotopes was developed and found to be an effective method to investigate the transfer of pheromone building blocks from flowering plants to butterflies. The anti-aphrodisiac methyl salicylate was not biosynthesized from phenylalanine in flowers of Alliaria petiolata.

Both aphrodisiac and anti-aphrodisiac pheromones in P.napi are produced not only from resources acquired in the larval stage, but also from nutritional resources consumed intheadult stage. Males of P. napi produce the anti-aphrodisiac pheromone from both the essential amino acid L-phenylalanine and from common flower fragrance constituents.

sted, utgiver, år, opplag, sider
Stockholm: KTH Royal Institute of Technology, 2014. s. 40
Serie
TRITA-CHE-Report, ISSN 1654-1081 ; 2014:8
Emneord
Pieris, Lepidoptera, pheromone, aphrodisiaca, antiaphrodisiaca, biosynthesis, flower volatiles, stable isotopes, incorporation, neral, geranial, methyl salicylate, benzyl cyanide, L - phenylalanine
HSV kategori
Identifikatorer
urn:nbn:se:kth:diva-142551 (URN)978-91-7595-039-6 (ISBN)
Disputas
2014-03-26, F3, Lindstedtsvägen 26, KTH, Stockholm, 10:00 (engelsk)
Opponent
Veileder
Merknad

QC 20140311

Tilgjengelig fra: 2014-03-11 Laget: 2014-03-06 Sist oppdatert: 2019-12-09bibliografisk kontrollert

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