Journal
INSECTS
Volume 9, Issue 4, Pages -Publisher
MDPI
DOI: 10.3390/insects9040144
Keywords
cold tolerance; supercooling point; overwintering; diapause
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Funding
- European Research Council (ERC) under the European Union [726049]
- European Research Council (ERC) [726049] Funding Source: European Research Council (ERC)
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Cold tolerance is often one of the key components of insect fitness, but the association between climatic conditions and supercooling capacity is poorly understood. We tested 16 lines originating from geographically different populations of the linden bug Pyrrhocoris apterus for their cold tolerance, determined as the supercooling point (SCP). The supercooling point was generally well explained by the climatic conditions of the population's origin, as the best predictorwinter minimum temperatureexplained 85% of the average SCP variation between populations. The supercooling capacity of P. apterus is strongly correlated with climatic conditions, which support the usage of SCP as an appropriate metric of cold tolerance in this species.
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