Sammanfattning

With climate change, spring warming tends to advance plant leaf-out. While the timing of leaf-out has been shown to affect the quality of leaves for herbivores in spring, it is unclear whether such effects extend to herbivores active in summer. In this study, we first examined how spring and autumn phenology of seven Quercus robur genotypes responded to elevated temperatures in spring. We then tested whether the performance of two summer-active insect herbivores (Orthosia gothica and Polia nebulosa) and infection by a pathogen (Erysiphe alphitoides) were influenced by plant phenology, traits associated with genotype or the interaction between these two. Warm spring temperatures advanced both bud development and leaf senescence in Q. robur. Plants of different genotype differed in terms of both spring and autumn phenology. Plant phenology did not influence the performance of two insect herbivores and a pathogen, while traits associated with oak genotype had an effect on herbivore performance. Weight gain for O. gothica and ingestion for P. nebulosa differed by a factor of 4.38 and 2.23 among genotypes, respectively. Herbivore species active in summer were influenced by traits associated with plant genotype but not by phenology. This suggest that plant attackers active in summer may prove tolerant to shifts in host plant phenology-a pattern contrasting with previously documented effects on plant attackers active in spring and autumn.

Nyckelord

Climate change; Community ecology; Mismatch; Phenology; Trophic interactions

Publicerad i

Ecology and Evolution
2022, Volym: 12, nummer: 1, artikelnummer: e8495
Utgivare: WILEY

SLU författare

• Ekholm, Adam

  • Institutionen för ekologi, Sveriges lantbruksuniversitet
    

• Roslin, Tomas

  • Institutionen för ekologi, Sveriges lantbruksuniversitet
    

Globala målen

Vidta omedelbara åtgärder för att bekämpa klimatförändringarna och dess konsekvenser


UKÄ forskningsämne

Botanik
Klimatforskning
Ekologi


Publikationens identifierare

DOI: https://doi.org/10.1002/ece3.8495

Permanent länk till denna sida (URI)

https://res.slu.se/id/publ/116320