Distribution, abundance and production of Hemimysis anomala in Lake Ontario

Taraborelli, Ana Carolina; Jakobi, Nina; Johnson, Timothy B.; Bowen, Kelly L.; Boscarino, Brent T.

doi:10.1016/j.jglr.2011.08.010

Cited by 13 publications

(1 citation statement)

References 31 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…H. anomala reproduces during the warmer half of the year (Borcherding, Murawski & Arndt ; Taraborelli et al . ), whereas M. salemaai reproduces during winter (Andrew & Woodward ). Both species maximize energy assimilation over corresponding temperatures.…”

Section: Discussionmentioning

confidence: 99%

Warming can enhance invasion success through asymmetries in energetic performance

Penk

Jeschke

Minchin

et al. 2016

Journal of Animal Ecology

View full text Add to dashboard Cite

Both climate warming and biological invasions are prominent drivers of global environmental change and it is important to determine how they interact. However, beyond tolerance and reproductive thresholds, little is known about temperature dependence of invaders' performance, particularly in the light of competitive attributes of functionally similar native species. We used experimentally derived energy budgets and field temperature data to determine whether anticipated warming will asymmetrically affect the energy budgets of the globally invasive Ponto-Caspian mysid crustacean Hemimysis anomala and a functionally similar native competitor (Mysis salemaai) whose range is currently being invaded. In contrast to M. salemaai, which maintains a constant feeding rate with temperature leading to diminishing energy assimilation, we found that H. anomala increases its feeding rate with temperature in parallel with growing metabolic demand. This enabled the invader to maintain high energy assimilation rates, conferring substantially higher scope for growth compared to the native analogue at spring-to-autumn temperatures. Anticipated warming will likely exacerbate this energetic asymmetry and remove the winter overlap, which, given the seasonal limitation of mutually preferred prey, appears to underpin coexistence of the two species. These results indicate that temperature-dependent asymmetries in scope for growth between invaders and native analogues comprise an important mechanism determining invasion success under warming climates. They also highlight the importance of considering relevant spectra of ecological contexts in predicting successful invaders and their impacts under warming scenarios.

show abstract

Section: Discussionmentioning

confidence: 99%