We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
The life cycle of Cordulegaster boltonii (Donovan, 1807) (Odonata: Cordulegastridae) in the Sierra Morena Mountains (southern Spain)
- Authors
Ferreras-Romero, Manuel; Corbet, Philip S.
- Abstract
The life cycle of the dragonfly Cordulegaster boltonii was studied for five consecutive years, mainly by systematic sampling of larvae, in a permanent upland stream in southern Spain, towards the southern part of this species' range. The instar distribution during winter is that of a 'spring species' (Corbet, 1964) in which larvae destined toemerge in the next spring are predominantly in the final instar. During larval development a hatching cohort divides into 'slow' and 'fast' components which respectively complete development in three and two years, the former component predominating. Signs of advanced metamorphosis (in the last larval instar) are confined to late winter and spring. Emergence is protracted, there being a long 'tail' after most of the population has emerged, resulting in a long flying season.
- Subjects
ODONATA; INSECTS; BIOGRAPHIES; VOLCANISM
- Publication
Hydrobiologia, 1999, Vol 405, Issue 1-3, p39
- ISSN
0018-8158
- Publication type
Article
- DOI
10.1023/A:1003763819991