TY - JOUR
T1 - Circadian Rhythm in Feeding Behavior of Daphnia dentifera
AU - Pfenning-Butterworth, Alaina C.
AU - Amato, Kristina
AU - Cressler, Clayton E.
N1 - Publisher Copyright:
© 2021 The Author(s).
PY - 2021/12
Y1 - 2021/12
N2 - Circadian rhythms enable organisms to mediate their molecular and physiological processes with changes in their environment. Although feeding behavior directly affects within-organism processes, there are few examples of a circadian rhythm in this key behavior. Here, we show that Daphnia have a nocturnal circadian rhythm in feeding behavior that corresponds with their diel vertical migration (DVM), an important life history strategy for predator and UV avoidance. In addition, this feeding rhythm appears to be temperature compensated, which suggests that feeding behavior is robust to seasonal changes in water temperature. A circadian rhythm in feeding behavior can impact energetically demanding processes like metabolism and immunity, which may have drastic effects on susceptibility to disease, starvation risk, and ultimately, fitness.
AB - Circadian rhythms enable organisms to mediate their molecular and physiological processes with changes in their environment. Although feeding behavior directly affects within-organism processes, there are few examples of a circadian rhythm in this key behavior. Here, we show that Daphnia have a nocturnal circadian rhythm in feeding behavior that corresponds with their diel vertical migration (DVM), an important life history strategy for predator and UV avoidance. In addition, this feeding rhythm appears to be temperature compensated, which suggests that feeding behavior is robust to seasonal changes in water temperature. A circadian rhythm in feeding behavior can impact energetically demanding processes like metabolism and immunity, which may have drastic effects on susceptibility to disease, starvation risk, and ultimately, fitness.
KW - Biodare2
KW - Daphnia
KW - behavior
KW - circadian rhythm
KW - diel vertical migration
KW - feeding
UR - http://www.scopus.com/inward/record.url?scp=85118956711&partnerID=8YFLogxK
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U2 - 10.1177/07487304211054404
DO - 10.1177/07487304211054404
M3 - Letter
C2 - 34753340
AN - SCOPUS:85118956711
SN - 0748-7304
VL - 36
SP - 589
EP - 594
JO - Journal of Biological Rhythms
JF - Journal of Biological Rhythms
IS - 6
ER -