Question

gentoo penguins present a potential mate with a pebble. emperor penguins have a specific call and movement that they make to attract a mate. which type of isolation do these penguins demonstrate?
○ temporal isolation
○ behavioral isolation
○ geographical isolation
○ anatomical isolation

Explanation:

• Temporal isolation: Occurs when species breed at different times (e.g., different seasons). Not relevant here as the focus is on courtship behaviors, not timing.
• Behavioral isolation: Involves differences in courtship rituals (like specific calls, movements, or gifts). Gentoo penguins using a pebble and Emperor penguins using specific calls/movements fit this as these are behavioral mating signals.
• Geographical isolation: Happens when species are separated by physical barriers (e.g., mountains, oceans). No mention of physical separation in the penguin example.
• Anatomical isolation: Relates to physical incompatibilities in reproductive structures. Not about courtship behaviors described.

Answer:

B. behavioral isolation