Affordable Access

Publisher Website

Physiological tolerance ofDrosophila simulansto dark environment: A comparison withD. melanogaster

Authors
Journal
Journal of Insect Physiology
0022-1910
Publisher
Elsevier
Publication Date
Volume
28
Issue
9
Identifiers
DOI: 10.1016/0022-1910(82)90137-8
Keywords
  • Darkness
  • Adaptation
  • Light Regimes
  • Drosophila
  • Fitness
  • Fecundity
  • Viability
Disciplines
  • Biology
  • Ecology

Abstract

Abstract According to ecological and behavioural studies, Drosophila simulans is considered to be less tolerant of darkness than its sibling species D. melanogaster which is well adapted both behaviourally and physiologically to darkness. The relationships between physiological and behavioural adaptations have been analysed by studying the developmental and the reproductive capacities of D. simulans submitted to various light regimes (LL, LD 12:12, DD). This species has a lower reproductive capacity than D. melanogaster but failed to react to light treatment. In particular, D. simulans showed no effect of darkness on either fertilization or ovarian function. The lack of differences between D. melanogaster and D. simulans as regards their physiological capacities in relation to light regime suggests that the selective pressures of light may act at different levels of regulation.

There are no comments yet on this publication. Be the first to share your thoughts.