Kinetics of avoidance of simulated solar uv radiation by two arthropods

Journal Article · Mon Dec 01 00:00:00 EST 1980 · Biophys. J.; (United States)

DOI:https://doi.org/10.1016/S0006-3495(80)85026-0· OSTI ID:6639653

Barcelo, J A; Calkins, J

There is an increasing likelihood that the solar uv-B radiation (lambda = 280-320 nm) reaching the earth's surface will increase due to depletion of the stratospheric ozone layer. It is recognized that many organisms are insufficiently resistant to solar uv-B to withstand full summer sunlight and thus mechanisms which facilitate avoidance of solar uv-B exposure may have significance for the survival of sensitive species. There are many alternative pathways which would lead to avoidance of solar uv-B. We have investigated the dynamics of biological reactions to simulated solar uv-B radiation in two small arthropods, the two-spotted spider mite Tetranychus urticae Koch and the aquatic copepod Cyclops serrulatus. Observations of positioning and rate of movement were made; a mathematical formalism was developed which assisted in interpretation of the observations. Our observations suggest that, although avoidance would mitigate increased solar uv-B effects, even organisms which specifically reduce their uv-B exposure would encounter additional stress if ozone depletion does occur.

• Research Organization: Univ. of Kentucky, Lexington, KY (United States)
• OSTI ID: 6639653
• Journal Information: Biophys. J.; (United States), Vol. 32:2
• Country of Publication: United States
• Language: English

Related Subjects

59 BASIC BIOLOGICAL SCIENCES
COPEPODS
AVOIDANCE
MITES
ULTRAVIOLET RADIATION
BIOLOGICAL ADAPTATION
MATHEMATICAL MODELS
MIGRATION
OZONE LAYER
POPULATION DYNAMICS
RADIATION DOSES
SOLAR RADIATION
STRATOSPHERE
ANIMALS
AQUATIC ORGANISMS
ARACHNIDS
ARTHROPODS
BEHAVIOR
CRUSTACEANS
DOSES
EARTH ATMOSPHERE
ELECTROMAGNETIC RADIATION
INVERTEBRATES
LAYERS
RADIATIONS
STELLAR RADIATION
550100* - Behavioral Biology