Affiliation:
1. Scion (New Zealand Forest Research Institute) , Private Bag 3020, Rotorua 3046 , New Zealand
2. Scion (New Zealand Forest Research Institute) , 10 Kyle Street, Riccarton, Christchurch 8440 , New Zealand
3. The New Zealand Institute for Plant & Food Research Limited , Private Bag 92169, Auckland 1142 , New Zealand
Abstract
AbstractHylurgus ligniperda (F.) and Hylastes ater (Paykull) are secondary bark beetles that have successfully spread beyond their native range, particularly into Pinus spp. plantations in the Southern Hemisphere. They feed on the phloem and cambial regions of highly stressed and recently dead Pinus spp. Here H. ligniperda and H. ater egg, larval, and pupal survival and development rates were modeled. Survival was variably influenced by temperatures depending on the life stage, but general trends were for H. ligniperda to tolerate warmer temperatures in comparison to H. ater. Nonlinear models showed 26, 29, and 34°C are the optimal temperature (maximum development rates) for the development of eggs, larvae, and pupae of H. ligniperda. In contrast, optimal temperature predictions were lower for H. ater, with estimates of 26, 22, and 23°C for the development of eggs, larvae, and pupae, respectively. H. ligniperda pre-imaginal stages were more tolerant to high temperatures, and H. ater pre-imaginal stages were more tolerant to low temperatures. Understanding the thermal requirements and limits for development for these two pests can assist in modeling emergence times, their current and potential species distribution and have potential phytosanitary applications.
Funder
Ministry for Business Innovation and Employment
Stakeholders in Methyl Bromide Reduction Inc
Publisher
Oxford University Press (OUP)
Subject
Insect Science,Ecology,Ecology, Evolution, Behavior and Systematics
Cited by
1 articles.
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