Life Sciences Commons^™

Density-Dependent Effects Of A Toxicant On Life-History Traits And Population Dynamics Of A Capitellid Polychaete, Inez Linke-Gamenick, Valery E. Forbes, Richard M. Sibly

Valery Forbes Publications

The toxic effects of the widespread polycyclic aromatic hydrocarbon (PAH), fluoranthene (FLU), on Life-history traits of Capitella sp. M as a function of population density were investigated in a life-table-response-experiment (LTRE) lasting 134 d. Animals from laboratory cultures were exposed to 6 different FLU concentrations (range 0 to 80 μg FLU [g dry wt sed]^–1, ppm) at 3 population densities (range 529 to 36 842 worms m^–2), and survivorship, growth rate until maturity, and reproductive parameters were recorded. Fluoranthene exposure significantly reduced juvenile survivorship in a concentration- dependent manner, whereas population density had no effect on …

Drug, Pharmaceutical, And Pharmacy-Related Sites: A Webliography Of Core Sites, Paul G. Haschak

E-JASL 1999-2009 (Volumes 1-10)

The World Wide Web (WWW) increasingly is becoming an important learning, teaching, and research tool for teachers and students, alike, who are seeking useful drug, pharmaceutical, and pharmacy-related sites on the Web, for their research. However, the seemingly inexhaustible number of WWW links can be daunting even to the most experienced Web user.

The following webliography is presented specifically for educators and students seeking a concise, annotated core list of WWW links on pharmaceutical, drug, and pharmacy-related topics.

Studying Stress In Ecological Systems: Implications For Ecological Risk Assessment And Risk Management, Valery E. Forbes

Valery Forbes Publications

In many of the world’s habitats abiotic stress is a key force controlling the distribution and abundance of species. As a result of human activities, the role of abiotic stress appears to be increasing in many areas in the form of habitat alteration or destruction, chemical contamination, and large-scale climatic shifts. An important scientific goal, therefore, is to develop approaches for assessing and predicting damage to ecological systems arising from abiotic stress. Moreover, determining how interactions between human-caused stresses and natural environmental stresses impact biological systems is an active area of research. This Invited Feature highlights some of the main …

Effects Of 4-N-Nonylphenol On Life-History Traits And Population Dynamics Of A Polychaete, Flemming T. Hansen, Valery E. Forbes, Thomas L. Forbes

Valery Forbes Publications

A Life-Table-Response Experiment lasting 78 d was performed to investigate the toxic effects of sediment-associated 4-n-nonylphenol (NP) on growth, reproduction, and survivorship of isolated hermaphrodites of the infaunal polychaete Capitella sp. I. Demographic effects were evaluated using both a fully age-classified and a simple twostage model to estimate population growth rates (λ). Decomposition analysis was performed to explore the contributions of each of the affected life-history traits to the effects observed on l. Elasticity analysis was applied to examine the relative sensitivity of λ to changes in each of the different life-history traits under different exposure levels.

In the lowest …