Filial Cannibalism Flashcards
1
Q
Paternal investment with an uncertain future: effects of predator exposure on filial cannibalism and nesting behaviours
Author & date?
A
Deal et al 2017
2
Q
What is filial cannibalism?
A
Parental consumption of their own offspring
3
Q
What did this study investigate?
A
Filial cannibalism and nest characteristics in the sand goby with paternal care
4
Q
How was the study undertaken?
A
- Sand gobys were seperated into mating pairs
- Clear division were added in the tank
- A predator (perch) was placed in the other side of the tank
- Control = no perch
5
Q
What were the results?
A
Sand gobys always ate part of their clutch - predation had no significant effect on this
6
Q
Some fish consume part of their clutch: Partial filial cannibolism, Why?
A
Use resources gained to care for remaining clutch
7
Q
How does parent predation risk effect brood care in some fish?
A
Increased brood abandonment
