TITLE

The annual life history of a population of the aquatic Coleopteran Derallus angustus (Coleoptera: Hydrophilidae)

AUTHOR(S)
Fernández, Liliana Alicia
PUB. DATE
March 2008
SOURCE
Revista de Biología Tropical;mar2008, Vol. 56 Issue 1, p345
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Derallus Sharp, 1882 is a Neotropical genus of aquatic coleopterans that belongs in the tribe Berosini and includes 15 species. D. angustus Sharp is widely distributed from Guatemala to Argentina. The population dynamics of this species was studied by periodic sampling of a natural population from the southernmost Subtropical Domain of the Neotropical Region. The study site was near Punta Lara (34°47' S, 58°01' W; Ensenada, Buenos Aires province, Argentina). Twenty seven samples consisting of 20 units of aquatic vegetation (200 cm2 each) were taken during one year. Larvae and adults were removed from the vegetation and counted (pupae were not studied). There was a peak of first instar larvae abundance at the end of spring, and another at the end of summer. Adults and third instar larvae were present throughout the whole year. The population is interpreted as being univoltine and including two periods of enhanced reproductive activity.
ACCESSION #
33765398

 

Related Articles

Share

Read the Article

Courtesy of VIRGINIA BEACH PUBLIC LIBRARY AND SYSTEM

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics