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Insects 2018, 9(4), 144; https://doi.org/10.3390/insects9040144

Climatic Variation of Supercooling Point in the Linden Bug Pyrrhocoris apterus (Heteroptera: Pyrrhocoridae)

1
Faculty of Education, University of South Bohemia, Branisovska 31a, 37005 Ceske Budejovice, Czech Republic
2
Biology Center, Academy of Sciences of the Czech Republic, 37005 Ceske Budejovice, Czech Republic
*
Author to whom correspondence should be addressed.
Received: 30 June 2018 / Revised: 9 October 2018 / Accepted: 15 October 2018 / Published: 19 October 2018
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Abstract

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 predictor—winter minimum temperature—explained 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. View Full-Text
Keywords: cold tolerance; supercooling point; overwintering; diapause cold tolerance; supercooling point; overwintering; diapause
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
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Ditrich, T.; Janda, V.; Vaněčková, H.; Doležel, D. Climatic Variation of Supercooling Point in the Linden Bug Pyrrhocoris apterus (Heteroptera: Pyrrhocoridae). Insects 2018, 9, 144.

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