Herbivore Larval Development at Low Springtime Temperatures : The Importance of Short Periods of Heating in the Field
Joint Authors
Müller, Esther
Obermaier, Elisabeth
Source
Issue
Vol. 2012, Issue 2012 (31 Dec. 2012), pp.1-7, 7 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2012-02-08
Country of Publication
Egypt
No. of Pages
7
Main Subjects
Abstract EN
Temperature has been shown to play an important role in the life cycles of insects.
Early season feeders in Palaearctic regions profit by the high nutritional quality of their host plants early in the year, but face the problem of having to develop at low average springtime temperatures.
This study examines the influence of short periods of heating in the field on larval development and on mortality with the model system Galeruca tanaceti L.
(Coleoptera: Chrysomelidae), an early season feeder, that hatches at low springtime temperatures.
Field and laboratory experiments under different constant and variable temperature regimes were performed.
While in the field, the average daily temperature was close to the lower developmental threshold of the species of 10.9°C; maximum temperatures of above 30°C were sometimes reached.
Larvae developed significantly faster, and pupae were heavier, in the field and in an assay with short periods of heating than at the same average temperature under constant conditions in the laboratory.
We conclude that larvae profit substantially from short periods of heating and temperature variation in the field and that intervals of high temperature enable insect survival and exploitation of nutrient-rich food resources at early times in the season.
American Psychological Association (APA)
Müller, Esther& Obermaier, Elisabeth. 2012. Herbivore Larval Development at Low Springtime Temperatures : The Importance of Short Periods of Heating in the Field. Psyche،Vol. 2012, no. 2012, pp.1-7.
https://search.emarefa.net/detail/BIM-464513
Modern Language Association (MLA)
Müller, Esther& Obermaier, Elisabeth. Herbivore Larval Development at Low Springtime Temperatures : The Importance of Short Periods of Heating in the Field. Psyche No. 2012 (2012), pp.1-7.
https://search.emarefa.net/detail/BIM-464513
American Medical Association (AMA)
Müller, Esther& Obermaier, Elisabeth. Herbivore Larval Development at Low Springtime Temperatures : The Importance of Short Periods of Heating in the Field. Psyche. 2012. Vol. 2012, no. 2012, pp.1-7.
https://search.emarefa.net/detail/BIM-464513
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-464513