Brown Pelicans: Improved Reproduction off the Southern California Coast
Anderson DW, Jehl JR, Risebrough RW, Deweese LR, Woods LA, Edgecomb WG. 1975. Brown Pelicans: Improved Reproduction off the Southern California Coast. Science. 190(4216):806-808
'Although still about 30 percent too low for population stability, productivity of California brown pelicans at their two northern colonies has improved significantly since 1971. Numbers of adults breeding probably reflect food supplies and recruitments from more successful colonies to the south, but improving fledging rates (up to 0.9 young per nest in 1974) reflect better egg survival and improving eggshell condition, with declining DDE contamination in anchovies, their major food source.' Study conducted at Anacapa Island and Isla Coronado Norte.
- Type
- Journal Article
- Authors
- Anderson, Daniel; Jehl, Joseph; Risebrough, Robert; Deweese, Lawrence; Woods, Leon; Edgecomb, William
- Units
- CHIS
- Keywords
- Anacapa Island Channel Islands National Park CA, Animal Studies, Brown Pelican (Pelecanus occidentalis), DDT & DDE, Eggshell Thickness, Reproduction