21463300
not annotated - annotated - LINNAEUS only
Heating up relations between cold fish: competition modifies responses to climate change.
Most predictions about species responses to climate change ignore species interactions. Helland and colleagues (2011) test whether this assumption is valid by evaluating whether ice cover affects competition between brown trout [Salmo trutta (L.)] and Arctic charr [Salvelinus alpines (L.)]. They show that increasing ice cover correlates with lower trout biomass when Arctic charr co-occur, but not in charr's absence. In experiments, charr grew better in the cold, dark environments that typify ice-covered lakes. Decreasing ice cover with warmer winters could mean more trout and fewer charr. More generally, their results provide an excellent example, suggesting that species interactions can strongly modify responses to climate change.
Ann file
T1 Species 308 319 brown trout
N1 Reference T1 Taxonomy:8032
T2 Species 321 333 Salmo trutta
N2 Reference T2 Taxonomy:8032
T3 Species 344 356 Arctic charr
N3 Reference T3 Taxonomy:8036
T4 Species 358 376 Salvelinus alpines
N4 Reference T4 Taxonomy:8036
T5 Species 461 473 Arctic charr
N5 Reference T5 Taxonomy:8036
T6 Species 495 502 charr's
N6 Reference T6 Taxonomy:8036
T7 Species 528 533 charr
N7 Reference T7 Taxonomy:8036
T8 Species 681 686 charr
N8 Reference T8 Taxonomy:8036
T9 Species 665 670 trout
N9 Reference T9 Taxonomy:8032 Salmo trutta
T10 Species 442 447 trout
N10 Reference T10 Taxonomy:8032