For a short-lived organism, such as a freshwater zooplankter, the ways of coping with years
of local recruitment failure are either to disperse between habitats and recolonise or to …

Since the initial suggestion of using insect hormones or their mimics as the third-generation
insecticides, great strides have been made in the discovery of three classes of such insect …

Daphnids (Daphnia magna) utilize cyclic parthenogenesis as a reproductive strategy.
During periods of abundant resources, these organisms reproduce asexually. In response to …

The water flea Daphnia magna reproduces primarily by cyclic parthenogenesis.
Environmental stimuli that signal a change to adverse conditions induce the organisms to …

Juvenile hormone analogs (JHAs) represent a class of insecticides that were designed
specifically to disrupt endocrine-regulated processes relatively unique to insects. Recently …

Dormancy is a suspension of the vital functions in an organism for a certain, sometimes very
long, time period to overcome harsh environmental conditions. It is a widespread adaptation …

Recent studies have indicated that nitrogen availability can be an important determinant of
primary production in freshwater lakes and that herbivore growth can be limited by low …

Cyclic parthenogenesis (heterogony) is a widespread reproductive mode found in diverse
taxa such as digenean trematodes, gall wasps, gall midges, aphids, cladocerans and …

Bisphenol A is a key industrial chemical used in the manufacture of polycarbonate plastics
and other products. Several recent reports ascribe toxicological properties to this compound …

The timing of sex in facultatively sexual organisms is critical to fitness, due to the differing
demographic consequences of sexual versus asexual reproduction. In addition to the costs …