Animal Behavior – Biology Final Exam
The key terms in this Biology course include Animal Behavior.
In regards to behavior what is/are proximate causes?
includes any interaction resulting from a response of one animal to another animal of the same species.
behavior is under selective evolutionary pressure
focus on the genetic, physiological, and anatomical mechanisms underlying the behavioral act itself
addresses the evolutionary significance of a behavior.
includes physical action or threat that causes another to abandon something.
Explanation
Proximate, or “how”, causes/questions about behavior focus on the environmental stimuli that trigger a behavior. These focus on the genetic, physiological, and anatomical mechanisms underlying the behavioral act itself.
Proximate and Ultimate causes in male stickleback behavior
Proximate cause of male stickleback attack behavior [ Select ]
Ultimate cause of male stickleback attack behavior [ Select ]
Answer 1:
The red underbelly of the intruder male acts as a sign stimulus that triggers the fixed action pattern attack behavior.
Answer 2:
By chasing away a rival male stickleback, the attacking male stickleback increases the likelihood that the eggs in his territory are fertilized be him. This behavior is under selective evolutionary pressure, since males that keep other males away are able to fertilize more eggs
Proximate
The red underbelly of the intruder male acts as a sign stimulus that triggers the fixed action pattern attack behavior.
Ultimate
By chasing away a rival male stickleback, the attacking male stickleback increases the likelihood that the eggs in his territory are fertilized be him. This behavior is under selective evolutionary pressure, since males that keep other males away are able to fertilize more eggs (hence the attacking males genetics are kept in the population).
In regards behavior what is/are ultimate causes?
a sign stimulus that triggers the fixed action pattern
includes any interaction resulting from a response of one animal to another animal of the same species.
includes physical action or threat that causes another to abandon something.
focus on the genetic, physiological, and anatomical mechanisms underlying the behavioral act itself
addresses the evolutionary significance of a behavior.
Explanation
Ultimate, or “why”, causes/questions addresses the evolutionary significance of a behavior.