No Detectable Trade-Offs Among Immune Function, Fecundity, and Survival via a Juvenile Hormone Analog in the House Cricket.

摘要: Hormones are key regulators of resource allocation among functions and thus play an important role in resource-based trade-offs. The juvenile hormone (JH) is insect that mediates between immunity life history components. Here, we have tested whether this the case using house cricket. We investigated increased levels JH (using methoprene, a analog) enable enhanced survival fecundity (via egg number) at cost reduced hemocyte number (a trait associated with immune response insects) cricket, Acheta domesticus L. had three groups adult crickets both sexes: experimental (methoprene acetone), positive control (methoprene), negative (no manipulation). Prior to after treatments, counted hemocytes (for sexes) recorded eggs laid females manipulation. There was no difference number, survival. These results do not support JH-mediated trade-off ability, survival, fecundity. provide arguments explain lack trade-offs