Simulated climate warming causes asymmetric responses in insect life-history timing potentially disrupting a classic ecological speciation system.

Autor: Lackey ACR; Department of Biological Sciences, Binghamton University (State University of New York), Binghamton, New York, USA.; Department of Biology, University of Louisville, Louisville, Kentucky, USA., Deneen PM; Department of Biological Sciences, Binghamton University (State University of New York), Binghamton, New York, USA., Ragland GJ; Department of Integrative Biology, University of Colorado Denver, Denver, Colorado, USA., Feder JL; Department of Biological Sciences, University of Notre Dame, Notre Dame, Indiana, USA., Hahn DA; Entomology and Nematology Department, University of Florida, Gainesville, Florida, USA., Powell THQ; Department of Biological Sciences, Binghamton University (State University of New York), Binghamton, New York, USA.
Jazyk: angličtina
Zdroj: Ecology letters [Ecol Lett] 2023 Aug; Vol. 26 (8), pp. 1407-1418. Date of Electronic Publication: 2023 Jun 20.
DOI: 10.1111/ele.14268
Abstrakt: Climate change may alter phenology within populations with cascading consequences for community interactions and on-going evolutionary processes. Here, we measured the response to climate warming in two sympatric, recently diverged (~170 years) populations of Rhagoletis pomonella flies specialized on different host fruits (hawthorn and apple) and their parasitoid wasp communities. We tested whether warmer temperatures affect dormancy regulation and its consequences for synchrony across trophic levels and temporal isolation between divergent populations. Under warmer temperatures, both fly populations developed earlier. However, warming significantly increased the proportion of maladaptive pre-winter development in apple, but not hawthorn, flies. Parasitoid phenology was less affected, potentially generating ecological asynchrony. Observed shifts in fly phenology under warming may decrease temporal isolation, potentially limiting on-going divergence. Our findings of complex sensitivity of life-history timing to changing temperatures predict that coming decades may see multifaceted ecological and evolutionary changes in temporal specialist communities.
(© 2023 John Wiley & Sons Ltd.)
Databáze: MEDLINE
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