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Full-Text Articles in Pharmacology, Toxicology and Environmental Health
Development Of A Framework Based On An Ecosystem Services Approach For Deriving Specific Protection Goals For Environmental Risk Assessment Of Pesticides, Karin M. Nienstedt, Theo C. M. Brock, Joke Van Wensem, Mark Montforts, Andy Hart, Alf Aagaard, Anne Alix, Joes Boesten, Stephanie K. Bopp, Colin Brown, Ettore Capri, Valery E. Forbes, Herbert Köpp, Matthias Liess, Robert Luttik, Lorraine Maltby, José P. Sousa, Franz Streissl, Anthony R. Hardy
Development Of A Framework Based On An Ecosystem Services Approach For Deriving Specific Protection Goals For Environmental Risk Assessment Of Pesticides, Karin M. Nienstedt, Theo C. M. Brock, Joke Van Wensem, Mark Montforts, Andy Hart, Alf Aagaard, Anne Alix, Joes Boesten, Stephanie K. Bopp, Colin Brown, Ettore Capri, Valery E. Forbes, Herbert Köpp, Matthias Liess, Robert Luttik, Lorraine Maltby, José P. Sousa, Franz Streissl, Anthony R. Hardy
Valery Forbes Publications
General protection goals for the environmental risk assessment (ERA) of plant protection products are stated in European legislation but specific protection goals (SPGs) are often not precisely defined. These are however crucial for designing appropriate risk assessment schemes. The process followed by the Panel on Plant Protection Products and their Residues (PPR) of the European Food Safety Authority (EFSA) as well as examples of resulting SPGs obtained so far for environmental risk assessment (ERA) of pesticides is presented. The ecosystem services approach was used as an overarching concept for the development of SPGs, which will likely facilitate communication with stakeholders …
Effects Of Husbandry Parameters On The Life-History Traits Of The Apple Snail, Marisa Cornuarietis: Effects Of Temperature, Photoperiod, And Population Density, John Aufderheide, Ryan Warbritton, Nadine Pounds, Sharon File-Emperador, Charles Staples, Norbert Caspers, Valery E. Forbes
Effects Of Husbandry Parameters On The Life-History Traits Of The Apple Snail, Marisa Cornuarietis: Effects Of Temperature, Photoperiod, And Population Density, John Aufderheide, Ryan Warbritton, Nadine Pounds, Sharon File-Emperador, Charles Staples, Norbert Caspers, Valery E. Forbes
Valery Forbes Publications
These experiments are part of a larger study designed to investigate the influence of husbandry parameters on the life history of the apple snail, Marisa cornuarietis. The overall objective of the program is to identify suitable husbandry conditions for maintaining multigeneration populations of this species in the laboratory for use in ecotoxicological testing. In this article, we focus on the effects of photoperiod, temperature, and population density on adult fecundity and juvenile growth. Increasing photoperiod from 12 to 16 h of light per day had no effect on adult fecundity or egg hatching and relatively minor effects on juvenile growth …
Joint Effects Of Population Density And Toxicant Exposure On Population Dynamics Of Capitella Sp. I, Valery E. Forbes, Richard M. Sibly, Inez Linke-Gamenick
Joint Effects Of Population Density And Toxicant Exposure On Population Dynamics Of Capitella Sp. I, Valery E. Forbes, Richard M. Sibly, Inez Linke-Gamenick
Valery Forbes Publications
Very few studies have analyzed the dependence of population growth rate on population density, and even fewer have considered interaction effects of density and other stresses, such as exposure to toxic chemicals. Yet without such studies we cannot know whether chemicals harmful at low density have effects on carrying capacity or, conversely, whether chemicals reducing carrying capacity are also harmful at low density, impeding a population’s capacity to recover from disturbance. This study examines the combined effects of population density and a toxicant (fluoranthene) on population growth rate (pgr) and carrying capacity using the deposit-feeding polychaete Capitella sp. I as …
Toxicant Impacts On Density-Limited Populations: A Critical Review Of Theory, Practice, And Results, Valery E. Forbes, Richard M. Sibly, Peter Calow
Toxicant Impacts On Density-Limited Populations: A Critical Review Of Theory, Practice, And Results, Valery E. Forbes, Richard M. Sibly, Peter Calow
Valery Forbes Publications
Most natural populations experience some density dependence, and longterm average rates of population growth are likely to be close to zero (i.e., steady state). An essential question, therefore, is how and to what extent do density-dependent effects influence the responses of populations to toxicant impacts? Here we consider three general types of interaction between density dependence and toxicant effects: additive, less than additive, and more than additive. If we know enough about the life-history dynamics of an organism and how its life-history traits are affected by density and toxicant exposure, we should be able to use life-history models to predict …