Ecotoxicological dynamics subject to stoichiometric constraints

11 Jul 2018, 15:00
New Law School/--022 (University of Sydney)

New Law School/--022

University of Sydney

Oral Presentation Ecology Ecology, food webs, coexistence


Md Nazmul Hassan (Texas Tech University)


The development of ecotoxicological models over the last couple decades has significantly contributed to interpreting how contaminants impact organisms and cycle through food webs. However, there is increasing evidence that organisms experience interactive effects of contaminant stressors and food conditions, such as resource stoichiometry and nutrient availability. Stoichiometric Ecotoxicology modelling efforts shed light on nutrient and chemical contaminant cycling and ultimately can help improve toxicological risk assessment protocols. We are formulating a series of empirically testable and robust models of algae-Daphnia population dynamics subject to concurrent nutritional and contaminant stressors. In parallel to developing the models, we are conducting laboratory experiments manipulating the nutritional content of algae fed to Daphnia exposed to Cadmium, Arsenic, and Copper. Here, we present modelling and empirical results and discuss the synthesis of the two approaches.

Primary authors

Md Nazmul Hassan (Texas Tech University) Kelsey Thompson (Texas Tech University) Anahi Velazquez (Texas Tech University) Loren Hensley (Texas Tech University) Dr Gregory Mayer (Texas Tech University) Angela Peace (Texas Tech University)

Presentation Materials

There are no materials yet.