ISSN:
1573-3297
Keywords:
Stress
;
metabolic cost
;
habitat preference
;
adaptation
;
fitness
;
genetic variability
Source:
Springer Online Journal Archives 1860-2000
Topics:
Biology
,
Psychology
Notes:
Abstract Natural populations are normally exposed to substantial environmental stress. The consequences of stress include elevated metabolic costs and additive genetic variability. From the former, preferred habitats should be located in environments corresponding to minimum total energy expenditure. This tendency occurs in the field for behavioral adaptation ofDrosophila to variable temperature (and humidity) conditions. Laboratory studies of resource preference inDrosophila suggest a low genetic variability. However, under more stressful field conditions, genetic variability should be higher. Habitat preference studies under stressful conditions therefore need to be emphasized in modeling situations in nature.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01082460
Permalink
