2026-10-08T13:02:09Z https://api.figshare.com/v2/oai

oai:figshare.com:article/34007637 2026-09-30T00:40:36Z category_24418 portal_12 item_type_5 month_year_09_2026

Celeste Walton: Investigating Hormone Profiles between North and South Island Pukeko: A Comparison of Different Breeding Strategies within the Same Species Celeste Walton (23227834) Brendon Dunphy (1184706) Kristal Cain (4074982) Animal physiological ecology Pukeko hormones testosterone avian biology <p dir="ltr">Avian mating behavior is incredibly diverse, ranging from monogamy, polygyny, polyandry, amongst others. Hormones have been shown to drive a wide array of reproductive behaviors, such as testosterone and aggression, prolactin and parental care, and estrogens and sexual receptivity. However, identifying hormones and specific mating behavior or breeding strategy is highly debated. There are rare cases of the same species exhibiting different breeding strategies, and for this reason, the iconic pukeko (Porphyrio m. melanotus), a flightless, wading bird found in New Zealand, is an ideal subject. In the South Island, they exhibit monogamous breeding behavior without cooperative breeding, while in the North Island, they are polygynandrous and exhibit cooperative breeding. Pukeko from both the North and South Island will be caught and hormones samples across the breeding season to compare differences.</p> 2026-09-30T00:40:36Z Image Poster 10.17608/k6.auckland.34007637.v2 https://figshare.com/articles/poster/Investigating_Hormone_Profiles_between_North_and_South_Island_Pukeko_A_Comparison_of_Different_Breeding_Strategies_within_the_Same_Species/34007637 CC BY 4.0