Why Does the Typically Monogamous Oystercatcher (Haematopus Ostralegus) Engage in Extra-Pair Copulations?

• Published in: Behaviour
• Main Authors: Ens, B. J., Kruijt, J. P., Jenkins, L, Burke, T, Heg, D.
• Format: Article in Journal/Newspaper
• Language: English
• Published: 1993
• Subjects: INTRASPECIFIC BROOD PARASITISM; FEMALE PIED FLYCATCHERS; SPERM COMPETITION; TAENIOPYGIA-GUTTATA; FICEDULA-HYPOLEUCA; SPOTTED SANDPIPER; PARENTAL CARE; ZEBRA FINCH; URIA-AALGE; MATE; Finch; Uria aalge; uria
• Online Access: https://hdl.handle.net/11370/2901217c-ed01-4451-9f4a-fbc1a2ca2c77; https://research.rug.nl/en/publications/2901217c-ed01-4451-9f4a-fbc1a2ca2c77; https://doi.org/10.1163/156853993X00137

1) We attempted to identify the possible costs and benefits of Extra-Pair Copulations (EPCs) from field observations on a colour-marked population of Oystercatchers, a long lived monogamous species, where male and female share parental care and territory defence. (2) Despite our broad definition of...