Evolution, Vol. 50, No. 1 (Feb., 1996), pp. 163-173 (11 pages) Phenotypic evolution in contemporary populations can generally be witnessed only when novel selective forces produce rapid evolution.

Cinara edulis (Wilson), C. terminalis (Gillette and Palmer), and C. wahtolca Hottes were all larger when feeding on Pinus monophylla Torr. & Frem. than when feeding on P. edulis Engelm. Almost all ...

All the samples were collected in 95% ethanol and preserved at −20°C prior to their utilization. Under these conditions, DNA was obtained, which remained of good quality after several months or years ...

Aphids are tiny insects that suck the sap from a houseplant's leaves. Neem oil and diatomaceous earth are the best organic solutions to use to rid plants of aphids. Keeping a plant healthy and ...

The focus of my research is on insect parasitoids and biological control of agricultural pests. I use aphids and their hymenopteran parasitoids as model systems to quantify parasitoid attributes and ...