• Publications
  • Influence
Can filter‐feeding Asian carp invade the Laurentian Great Lakes? A bioenergetic modelling exercise
When applied to various habitats in the Great Lakes, the results suggest that silver and bighead carp will be unable to colonise most open-water regions because of limited plankton availability, however, in some circumstances, carp metabolism at lower temperatures may be low enough to permit positive growth even at very low rations.
Feeding at different plankton densities alters invasive bighead carp (Hypophthalmichthys nobilis) growth and zooplankton species composition
Chlorophyll and zooplankton densities in many Great Lakes ecosystems are substantially lower than the authors' low treatment conditions, and thus the results suggest that Asian carp establishment in these regions may be unlikely.
Damaging UV radiation and invertebrate predation: conflicting selective pressures for zooplankton vertical distribution in the water column of low DOC lakes
It was found that when Chaoborus were present zooplankton tended to be distributed at shallower depths in the columns, while in the presence of UV they exhibited a deeper distribution, and depth range was narrowed in response to chaoborus, UV, or both.
How do UV radiation, temperature, and zooplankton influence the dynamics of alpine phytoplankton communities?
The results demonstrate the importance of indirect as well as direct effects of climate forcing by UVR and temperature on phytoplankton community composition in mountain lakes, and suggest that warmer climates and higher UVR levels may favor certain species over others.
Anticipating the spread and ecological effects of invasive bigheaded carps (Hypophthalmichthys spp.) in North America: a review of modeling and other predictive studies
This analysis finds that although parameter values tend to vary substantially among and within systems, models are generally parameterized using the best information available, although bioenergetics and trophic models particularly need improvement.
Effects of urbanization on the population structure of freshwater turtles across the United States
A significant positive relationship between proportions of mature female painted turtles (Chrysemys picta) and urbanization is found and the approach of creating a collaborative network of scientists and students at undergraduate institutions proved valuable in testing the hypothesis over a large spatial scale while also allowing students to gain hands-on experience in conservation science.
How do temperature, dissolved organic matter and nutrients influence the response of Leptodiaptomus ashlandi to UV radiation in a subalpine lake?
SUMMARY 1. Ultraviolet radiation (UV) is an important stressor for zooplankton in alpine lake ecosystems. Multiple environmental variables such as dissolved organic matter (DOM), temperature and
Beneficial and detrimental interactive effects of dissolved organic matter and ultraviolet radiation on Zooplankton in a transparent lake
It is concluded that allochthonous DOM benefits some zooplankton in a high-UV environment, but may be detrimental under low-UV conditions.
Effects of temperature and ultraviolet radiation on diel vertical migration of freshwater crustacean zooplankton
It is found that both species were generally shallower in the–UV than in the +UV columns, and Daphnia catawba responded negatively to UV, even below the 1% depth for 320 nm, whereas L. minutus responded to UV only within the mixed layer and upper metalimnion.
Environmental framing on Twitter: Impact of Trump’s Paris Agreement withdrawal on climate change and ocean acidification dialogue
Abstract The role of social media in communicating emerging environmental issues has received little attention. One such issue is ocean acidification (OA), the process by which carbon dioxide (CO2)