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

Ecology Letters, Journal Year: 2023, Volume and Issue: 26(8), P. 1407 - 1418

Published: June 20, 2023

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) of Rhagoletis pomonella flies specialized on different host fruits (hawthorn apple) their parasitoid wasp communities. We tested whether warmer temperatures affect dormancy regulation its synchrony across trophic levels temporal isolation between divergent populations. Under temperatures, both fly developed earlier. However, significantly increased proportion maladaptive pre-winter development apple, but not hawthorn, flies. Parasitoid was less affected, potentially generating ecological asynchrony. Observed shifts under decrease isolation, limiting divergence. Our findings complex sensitivity life-history timing changing predict that coming decades see multifaceted changes specialist

Language: Английский

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The role of sexual isolation during rapid ecological divergence: Evidence for a new dimension of isolation in Rhagoletis pomonella

Journal of Evolutionary Biology, Journal Year: 2023, Volume and Issue: 36(6), P. 882 - 892

Published: May 13, 2023

The pace of divergence and likelihood speciation often depends on how when different types reproductive barriers evolve. Questions remain about isolation evolves after initial divergence. We tested for the presence sexual (reduced mating between populations due to divergent preferences traits) in Rhagoletis pomonella flies, a model system incipient ecological speciation. measured strength two very recently diverged (~170 generations) sympatric populations, adapted host fruits (hawthorn apple). found that flies from both were more likely mate within than populations. Thus, may play an important role reducing gene flow allowed by early-acting barriers. also warmer temperatures predicted under climate change could alter was markedly asymmetric - apple males hawthorn females mated randomly while between. Our findings provide window into early process divergence, addition examining environmental conditions shape further

Language: Английский

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Uncovering how behavioral variation underlying mutualist partner quality is partitioned within a species complex of keystone seed-dispersing ants

Insectes Sociaux, Journal Year: 2022, Volume and Issue: 69(2-3), P. 247 - 260

Published: June 15, 2022

Language: Английский

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Genomics of Neotropical biodiversity indicators: two butterfly radiations with rampant chromosomal rearrangements and hybridisation

Published: July 10, 2024

Abstract A major question in evolutionary biology is what drives the diversification of lineages. Rapid, recent radiations are ideal systems for addressing how new species arise because they still show key morphological and ecological adaptations associated with speciation. While most studied have evolved an insular environment, less research has been carried out on continental complex interactions. Melinaea Mechanitis butterflies (Nymphalidae: Ithomiini) rapidly radiated Neotropics. They classical models Amazonian biogeography colour pattern mimicry proposed as biodiversity indicators. We generated reference genomes five each genus, whole-genome resequencing data subspecies covering a wide geographic range to assess phylogeographic relationships, patterns hybridisation chromosomal rearrangements. Our help resolve classification these taxonomically challenging reveal very high rates. find rampant evidence historical putative hybrid both radiations, which may facilitated their rapid diversification. Moreover, dozens fusions fissions were identified between congeneric species, even some within species. conclude that interactions geography, rearrangements contributed two highly diverse Neotropical region. suggest be spurred by repeated periods isolation during Pleistocene climate oscillations, combined lineage-specific accumulation incompatibilities allopatric phases, followed secondary contact gene exchange. Significance Statement Understanding factors contributing speciation aim biology. Here we focus butterflies. genomic broad taxonomic coverage rearrangements, likely study highlights use groups elucidate drivers radiations. hotspots barcoding insufficient characterise richness due flow The implications introgression karyotype diversity delimitation important consider monitoring management vulnerable habitats. Classification: Biological Sciences - Evolution

Language: Английский

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Speciation-With-Gene-Flow

Elsevier eBooks, Journal Year: 2024, Volume and Issue: unknown

Published: Jan. 1, 2024

Language: Английский

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

bioRxiv (Cold Spring Harbor Laboratory), Journal Year: 2022, Volume and Issue: unknown

Published: Dec. 12, 2022

ABSTRACT 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 in two sympatric, recently diverged (~170 years) of Rhagoletis pomonella flies specialized on different host fruits (hawthorn apple) their parasitoid wasp communities. We tested whether warmer temperatures affect dormancy regulation its synchrony across trophic levels temporal isolation between divergent populations. Under temperatures, both fly developed earlier. However, warming significantly increased proportion maladaptive pre-winter development apple, but not hawthorn, flies. Parasitoid was less affected, potentially generating ecological asynchrony. Observed shifts under decrease isolation, limiting divergence. Our findings complex sensitivity life-history timing changing predict that coming decades see multifaceted changes specialist

Language: Английский

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