Seasonal and daily flight timing of oviposition in several stonefly species (plecoptera) in the field.
Peak preovipositional flight season and peak preovipositional flight time of day were compared among 12 species of Nemouridae, Chloroperlidae, Perlodidae and Perlidae. Species with a later peak date of preovipositional flight were found to have a later peak preovipositional flight time of day than species with an earlier peak in preovipositional flight season. A later peak preovipositional flight season correlated with a lower light intensity. Similarly, a later peak preovipositional flight time of day correlated with a lower light intensity and a later sunset. Individuals of one species (Sweltsa sp.), whose preovipositional flight date was later, flew over the stream at a later time of day. Species differences in peak preovipositional flight season and peak preovipositional flight time of day may be driven by species specific sensitivity for different light intensities.
Forest Conservation and Management Group, Shikoku Research Center, Forestry and Forest Products Research Institute, Kochi, Japan. yoshi887@ffpri.affrc.go.jp
Mayumi
M
Yoshimura
D000818:Animals; D002940:Circadian Rhythm / Q000502:physiology*; D005426:Flight, Animal / Q000502:physiology*; D007313:Insecta / Q000254:growth & development / Q000502:physiology*; D007564:Japan; D010058:Oviposition / Q000502:physiology*; D012621:Seasons; D013045:Species Specificity; D013472:Sunlight; D013696:Temperature