| Abstract: | Nineteen occurrences of interspecific sexual behavior between male southern sea otters (Enhydra lutris nereis) and juvenile Pacific harbor seals (Phoca vitulina richardsi) were reported in Monterey Bay, California, between 2000 and 2002. At least three different male sea otters were observed harassing, dragging, guarding, and copulating with harbor seals for up to 7 d postmortem. Carcasses of 15 juvenile harbor seals were recovered, and seven were necropsied in detail by a veterinary pathologist. Necropsy findings from two female sea otters that were recovered dead from male sea otters exhibiting similar behavior are also presented to facilitate a comparison of lesions. The most frequent lesions included superficial skin lacerations; hemorrhage around the nose, eyes, flippers, and perineum; and traumatic corneal erosions or ulcers. The harbor seals sustained severe genital trauma, ranging from vaginal perforation to vagino-cervical transection, and colorectal perforations as a result of penile penetration. One harbor seal developed severe pneumoperitoneum subsequent to vaginal perforation, which was also observed in both female sea otters and has been reported as a postcoital lesion in humans. This study represents the first description of lesions resulting from forced copulation of harbor seals by sea otters and is also the first report of pneu-moperitoneum secondary to forced copulation in a nonhuman animal. Possible explanations for this behavior are discussed in the context of sea otter biology and population demographics. |
| Genre: | Article |
| ProdID: | 70003437 |
| Citation Author: | Harris, Heather S.; Oates, Stori C.; Staedler, Michelle M.; Tinker, M. Tim; Jessup, David A.; Harvey, James T.; Miller, Melissa A. |
| Citation Contributing Office: | Western Ecological Research Center |
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| Citation End Page: | 341 |
| Citation Issue: | 4 |
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| Citation Language: | English |
| Citation Larger Work Title: | Aquatic Mammals |
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| Citation Number Of Pages: | 11 |
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| Citation Phsyical Description: | 11 p. |
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| Citation Publisher: | European Association of Aquatic Mammals |
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| Citation Search Results Text: | Behavior associated with forced copulation of juvenile Pacific harbor seals (Phoca vitulina richardsi) by southern sea otters (Enhydra lutris nereis); 2010; Article; Journal; Aquatic Mammals; Harris, Heather S.; Oates, Stori C.; Staedler, Michelle M.; Tinker, M. Tim; Jessup, David A.; Harvey, James T.; Miller, Melissa A. |
| Citation Start Page: | 331 |
| Citation Volume: | 36 |
| Citation Year: | 2010 |
| Type: | citation/reference |
| Text: | Behavior associated with forced copulation of juvenile Pacific harbor seals (Phoca vitulina richardsi) by southern sea otters (Enhydra lutris nereis); 2010; Article; Journal; Aquatic Mammals; Harris, Heather S.; Oates, Stori C.; Staedler, Michelle M.; Tinker, M. Tim; Jessup, David A.; Harvey, James T.; Miller, Melissa A. |
| URL (THUMBNAIL): | http://pubs.er.usgs.gov/thumbnails/outside_thumb.jpg |
| URL (INDEX PAGE): | http://www.werc.usgs.gov/ProductDetails.aspx?ID=4166 |
| Date Other: | Tue, 7 Jun 2011 16:50 -0500 |
| Publisher: | European Association of Aquatic Mammals |
