Journal
NEOTROPICAL ENTOMOLOGY
Volume 47, Issue 4, Pages 484-491Publisher
ENTOMOLOGICAL SOC BRASIL
DOI: 10.1007/s13744-017-0546-7
Keywords
Ecophysiology; Embrionary development; Insect eggs; Odonata
Categories
Funding
- Conselho Nacional de Desenvolvimento Cientifico e Tecnologico [CNPq 308694/2015-5]
- Coordenacao de Aperfeicoamento de Pessoal do Nivel Superior fellowship (CAPES) [23038006890201101]
Ask authors/readers for more resources
Physiological constraints in insects are related to several large-scale processes such as species distribution and thermal adaptation. Here, we fill an important gap in ecophysiology knowledge by accessing the relationship between temperature and embrionary development time in four dragonfly species. We evaluated two questions (1) what is the effect of temperature on the development time of Odonata eggs, and (2) considering a degree-day relationship, could a simple linear model describe the dependence of embrionary development time on temperature or it is better described by a more complex non-linear relation. Egg development time of Erythrodiplax fusca (Rambur), Micrathyria hesperis Ris, Perithemis mooma Kirby, and Miathyria simplex (Rambur) (Odonata: Libellulidae) were evaluated. We put the eggs at different temperatures (15, 20, 25, and 30A degrees C) and counted the number of hatched larvae daily. A nonlinear response of the development to the temperature was found, differing from the expected pattern for standard degree-day analysis. Furthermore, we observed that there is a similar process in the development time and hatching synchronization between species, with all species presenting faster egg development at high temperatures. Species-specific differences are more evident at lower temperatures (15A degrees C), with no egg development in M. simplex. Only E. fusca was relatively insensitive to temperature changes with similar hatching rates in all treatments.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available