Abstract
Adult body size and fecundity of a number of hemimetabolous aquatic insects depend largely on thermal conditions during the larval period. Small adults and reduced fecundity result when temperatures are either warmed or cooled with respect to more optimal thermal conditions. Temperature apparently affects adult size by altering the larval growth rate and the timing and rate of adult tissue development for each larva. The data suggest a new interpretation for the geographic distribution of aquatic insects.
Keywords
FecundityBiologyLarvaZoologyEcologyPopulation
Affiliated Institutions
Related Publications
Behavioral, ecological, and molecular genetic analyses of reproductive strategies in the Amazonian dart-poison frog, <i>Dendrobates ventrimaculatus</i>
We report the first field and genetic studies of the reproductive strategies of the Amazonian dart-poison frog Dendrobata vtntrimaculatus, a species with biparental care. Neithe...
A geometric model describing a quasi-equilibrium of energy flow in populations of stream insects
Studies of growth, population structure, and metabolism for the mayfly nymph Ephemerella dorothea suggest that in natural streams this species maintains a nearly uniform weight-...
Ecology of Two Related Species of Caddis Fly Larvae in the Organic Substrates of a Woodland Stream
Two species of Pycnopsyche larvae inhabiting allochthonous organic materials in West Creek are contemporaneous and similar in size. Field studies and laboratory experiments show...
CLIMATIC VARIABILITY, PLANT PHENOLOGY, AND NORTHERN UNGULATES
Models of climate change predict that global temperatures and precipitation will increase within the next century, with the most pronounced changes occurring in northern latitud...
Global traffic and disease vector dispersal
The expansion of global air travel and seaborne trade overcomes geographic barriers to insect disease vectors, enabling them to move great distances in short periods of time. He...
Publication Info
- Year
- 1978
- Type
- article
- Volume
- 200
- Issue
- 4340
- Pages
- 444-446
- Citations
- 249
- Access
- Closed
External Links
Social Impact
Altmetric
PlumX Metrics
Social media, news, blog, policy document mentions
Citation Metrics
249
OpenAlex
Cite This
Bernard W. Sweeney,
Robin L. Vannote
(1978).
Size Variation and the Distribution of Hemimetabolous Aquatic Insects: Two Thermal Equilibrium Hypotheses.
Science
, 200
(4340)
, 444-446.
https://doi.org/10.1126/science.200.4340.444
Identifiers
- DOI
- 10.1126/science.200.4340.444