Now showing items 1-6 of 6
How quality of host plant affects a predator-prey interaction in biological control
In cases of successful biological control the pest population is maintained at low densities by a natural enemy, but the mechanisms by which the predator or parasitoid manages to control the pest are often unknown. This ...
Regulation of an Insect Population Under Biological-Control
California red scale is suppressed to very low densities by the parasitoid Aphytis melinus. The system also appears stable. We report on an experimental test of the hypothesis that stability is caused by a refuge for scale. ...
Estimation of Temporal Variability in Populations
A common measure of the temporal variability of a population is the standard deviation of the logarithms of successive estimated population sizes, In(D-t). This measure overestimates true temporal variability (the standard ...
An experimental test of offspring recognition in Western Bluebirds
No abstract available.
Structure and dynamics of mussel patches in tidepools on a rocky shore in Nova Scotia, Canada
The distribution, size structure, and dynamics of mussel (Mytilus trossulus, M. edulis) patches in tidepools were studied on an exposed rocky shore near Halifax, Nova Scotia, Canada. The mussel patches were dynamic, ...
Larval cardiorespiratory ontogeny and allometry in Xenopus laevis
Very little is known about the early development of cardiorespiratory regulatory mechanisms in newly hatched amphibian larvae. We tested whether early cardiovascular responses to hypoxia reflect local flow regulation in ...