Development Rates of Some Finnish Gerris Fabr. Species (Het. Gerridae) in Laboratory Cultures

in Insect Systematics & Evolution
Restricted Access
Get Access to Full Text
Rent on DeepDyve

Have an Access Token?



Enter your access token to activate and access content online.

Please login and go to your personal user account to enter your access token.



Help

Have Institutional Access?



Access content through your institution. Any other coaching guidance?



Connect

Abstract

Egg and larval development times of Gerris odontogaster (Zett.) (COD), G. lateralis Schumm. (LAT), G. lacustris (L.) (LAC), G. thoracicus Schumm. (THO) and G. rufoscutellatus Lt. (RU) were studied. In species OD they are dependent on temperature. The roles of photoperiod, crowding and food remain open, even if continuous light seems to have a retarding effect on the larval development of OD and LAC. The development times of the subsequent instars of OD, LAT and LAC were shown to be of unequal lengths.

When the development rates of different species were compared in 25―26°C, the species sequence from fastest to slowest was LAT, THO, LAC, OD and RU, i.e., disregarding RU and THO, just the opposite of the order experienced in nature in Finland. This raised the question of why the fastest species have not displaced OD in the microclimatically warmest habitats. The answer is supposed to lie in the seasonal, environmentally determined alary dimorphism of OD, which adapts it better than other species to microclimatically warm but at the same time temporary habitats.

Development Rates of Some Finnish Gerris Fabr. Species (Het. Gerridae) in Laboratory Cultures

in Insect Systematics & Evolution

Sections

References

ANDERSEN, N. MØLLER, 1973. Seasonal polymorphism and developmental changes in organs of flight and reproduction in bivoltine pondskaters (Hem. Gerridae). - Ent. scand. 4. 1-20.

BOLLWEG, W., 1915. Beitrag zur Faunistik und Okologie der in der Umgebung Bonns vorkommenden aquatilen Rhyncoten, mit besonderer Berücksichtigung ihrer Larvenverhältnisse. ― Verh. naturh. Ver. preuss. Rheinl. 71. Bonn. 137-187.

BRINKHURST, R. O., 1959. Alary polymorphism in the Gerroidea (Hemiptera-Heteroptera). ― J. Anim. Ecol. 28. 211―230.

BROOKS, A. R. and KELTON, L. A., 1967. Aquatic and semi-aquatic Heteroptera of Alberta, Saskatchewan, and Manitoba (Hemiptera). - Mem. ent. Soc. Can. 51. 1-92.

EKBLOM, T., 1941. Untersuchungen über den Flügeldimorphismus bei Gerris asper Fieb. - Notul. ent. 21. Helsinki. 49-64.

- 1950. Über den Flügelpolymorphismus bei Gerris odontogaster Zett. - Ibid. 30. 41-49.

GUTHRIE, D. M., 1959. Polymorphism in the surface water bugs (Hemipt.-Heteropt.: Gerroidea). –J. Anim. Ecol. 28. 141-152.

HUNGERFORD, H. B., 1920. The biology and ecology of aquatic and semiaquatic Hemiptera. - Kans. Univ. Sci. Bull. 11. 1-341.

JORDAN, K. H. C., 1929. Zur Biologie des Wasserlaufers Limnotrechus odontogaster Zett. - Z. wiss. Insekt.-Biol. 24. 28-33.

- 1952. Wasserlaufer. Das Neue Brehm Bücherei. (Akad. Verl. Ges.) Leipzig. 1-32.

KAUFMANN, T., 1971. Ecology, biology and gonad morphology of Gerris rufoscutellatus (Hemiptera: Gerridae) in Fairbanks, Alaska. - Am. Midl. Nat. 86. 407-416.

KELTON, L. A., 1961. A new species of Gerris F. from Yukon and Alaska (Hemiptera: Gerridae). - Can. Ent. 93. 663-665.

LARSÉN, O., 1950. Einige Beobachtungen an Gerris lacustris. - Opusc. ent. 15. Lund. 131-133.

LEES, A. D., 1961. Clonal polymorphism in aphids. In J. S. Kennedy (ed.). Insect Polymorphism. –Symp. R. ent. Soc. Lond. 1. 68-79.

MITIS, H. VON, 1937. Okologie und Larvenentwicklung der mitteleuropäischen Gerris-Arten (Heteroptera). - Zool. Jb. (Syst.) 69. 337-372.

POISSON, R., 1924. Contributions à l'étude des Hemipteres aquatiques. - Bull. biol. Fr. Belg. 58. 49-305.

VEPSÄLÄINEN, K., 1971 a. The roles of photoperiodism and genetic switch in alary polymorphism in Gerris (Gerridae, Heteroptera); (a preliminary report). - Acta ent. fenn. 28. 101―102.

- 1971 b. The role of gradually changing daylength in determination of wing length, alary dimorphism and diapause in a Gerris odontogaster (Zett.) population (Gerridae, Heteroptera] in South Finland, - Ann. Acad. sci. fenn. A, IV. Biol. 183. 1-25.

- 1973. The distribution and habitats of Gerris Fabricius species (Heteroptera Gerridae] in Finland. - Ann. zool. fenn. 10. (in press).

Information

Content Metrics

Content Metrics

All Time Past Year Past 30 Days
Abstract Views 17 17 3
Full Text Views 21 21 15
PDF Downloads 5 5 3
EPUB Downloads 0 0 0