Some bird species mate monogamously for life (i.e., individuals keep the same partner year after year). Other bird species are seasonally monogamous: they choose a new mate every year. Some bird species have what is called helpers-at-the-nest; these helpers are older offspring who stick around and assist their parents in taking care of babies born the next year. Kin selection would predict that you would find more instances of helpers-at-the-nest in the species that mate monogamously for life than in the seasonally monogamous species. Why? Be sure to address why they might still help in seasonally monogamous pairs.

Some bird species mate monogamously for life (i.e., individuals keep the same partner year after year). Other bird species are seasonally monogamous: they choose a new mate every year. Some bird species have what is called helpers-at-the-nest; these helpers are older offspring who stick around and assist their parents in taking care of babies born the next year. Kin selection would predict that you would find more instances of helpers-at-the-nest in the species that mate monogamously for life than in the seasonally monogamous species. Why? Be sure to address why they might still help in seasonally monogamous pairs.

Biology: The Dynamic Science (MindTap Course List)

4th Edition

ISBN:9781305389892

Author:Peter J. Russell, Paul E. Hertz, Beverly McMillan

Publisher:Peter J. Russell, Paul E. Hertz, Beverly McMillan

Chapter56: Animal Behavior

Section: Chapter Questions

Problem 1ITD

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