Volume 44, No. 1
Volumes > 38 (2010-->)
- Volume 52, No. 2, 2024
- Volume 52, No. 1, 2024
- Volume 51, No. 2, 2023
- Volume 51, No. 1, 2023
- Volume 50, No. 2, 2022
- Volume 50, No. 1, 2022
- Volume 49, No. 2, 2021
- Volume 49, No. 1, 2021
- Volume 48, No. 2, 2020
- Volume 48, No. 1, 2020
- Volume 47, No. 2, 2019
- Volume 47, No. 1, 2019
- Volume 46, No. 2, 2018
- Volume 46, No. 1, 2018
- Volume 45, No. 2, 2017
- Volume 45, No. 1, 2017
- Volume 44, No. 2, 2016
- Volume 44, No. 1, 2016
- Volume 43, No. 2, 2015
- Volume 43, No. 1, 2015
- Volume 42, No. 2, 2014
- Volume 42, No. 1, 2014
- Volume 41, No. 2, 2013
- Volume 41, No. 1, 2013
- Volume 41, Special Issue, 2013
- Volume 40, No. 2, 2012
- Volume 40, No. 1, 2012
- Volume 39, No. 2, 2011
- Volume 39, No. 1, 2011
- Volume 38, No. 2, 2010
- Volume 38, No. 1, 2010
Volumes 28-37 (2000-09)
- Volume 37, No. 3, 2009
- Volume 37, No. 2, 2009
- Volume 37, No. 1, 2009
- Volume 36, No. 2, 2008
- Volume 36, No. 1, 2008
- Volume 35, No. 2, 2007
- Volume 35, No. 1, 2007
- Volume 34, No. 2, 2006
- Volume 34, No. 1, 2006
- Volume 33, No. 2, 2005
- Volume 33, No. 1, 2005
- Volume 32, No. 2, 2004
- Volume 32, No. 1, 2004
- Volume 31, No. 2, 2003
- Volume 31, No. 1, 2003
- Volume 30, No. 2, 2002
- Volume 30, No. 1, 2002
- Volume 29, No. 2, 2001
- Volume 29, No. 1, 2001
- Volume 28, No. 2, 2000
- Volume 28, No. 1, 2000
Volumes 18-27 (1990-99)
- Volume 27, No. 1 & 2, 1999
- Volume 26, No. 1 & 2, 1998
- Volume 24, No. 1 & 2, 1996
- Volume 25, No. 1 & 2, 1997
- Volume 23, No. 2, 1995
- Volume 23, No. 1, 1995
- Volume 22, No. 2, 1994
- Volume 22, No. 1, 1994
- Volume 21, No. 1 & 2, 1993
- Volume 20, No. 1 & 2, 1992
- Volume 19, No. 1, 1991
- Volume 18, No. 1 & 2, 1990
Volumes 5-17 (1978-89) a.k.a 'Cormorant'
- Volume 17, No. 1 & 2, 1989
- Volume 16, No. 1, 1988
- Volume 16, No. 2, 1988
- Volume 15, No. 1 & 2, 1987
- Volume 14, No. 1 & 2, 1987
- Volume 13, No. 2, 1986
- Volume 13, No. 1, 1986
- Volume 12, No. 2, 1985
- Volume 12, No. 1, 1985
- Volume 11, No. 1 & 2, 1984
- Volume 10, No. 2, 1983
- Volume 10, No. 1, 1983
- Volume 9, No. 2, 1982
- Volume 9, No. 1, 1982
- Volume 8, No. 2, 1981
- Volume 8, No. 1, 1981
- Volume 7, 1980
- Volume 5, 1978
Search by author or title:
Status and monitoring of Ashy Storm-Petrels Oceanodroma homochroa at Point Reyes National Seashore, 2012-2015
Citation
BECKER, B.H., CARTER, H.R., HENDERSON, R.P., WEINSTEIN, A.M. & PARKER, M.W. 2016. Status and monitoring of Ashy Storm-Petrels Oceanodroma homochroa at Point Reyes National Seashore, 2012-2015.
Marine Ornithology 44: 63
- 70
http://doi.org/10.5038/2074-1235.44.1.1156
Received 24 November 2015, accepted 12 December 2015
Date Published: 2016/04/15
Date Online: 2017/02/28
Key words: Ashy Storm-Petrel, California, nest, mist-net, Oceanodroma homochroa, Point Reyes
Abstract
While the largest Ashy Storm-Petrel Oceanodroma homochroa (ASSP) colonies are at offshore islands, small colonies also occur along the mainland coast of northern and central California. We describe past and current monitoring efforts along the coastline of Point Reyes National Seashore, California. From 2012 to 2015, we conducted nest searches and mist netting in late August or early September at the Bird Rock and Stormy Stack colonies, as well as the Point Reyes Headlands. Potential nest sites on Stormy Stack (~17) and Bird Rock (~40) included 4-7 and 3-6 active nests, respectively. These nest numbers were similar to those from past complete surveys at Bird Rock in 1989 and Stormy Stack in 2001, suggesting little change in colony size over time. Birds per capture hour during single nights of mist-netting at Bird Rock in 2012 (1.46) and 2013 (1.44) were lower than on two nights in 1989 (5.47 and 3.08), leading to a higher estimate of 37 pairs in 1989. Two ASSP were also netted at the Point Reyes Headlands in 2013, but no nests were found during limited searches in 2013 and 2015. Standardized long-term monitoring of nests at Bird Rock and Stormy Stack will provide better information on future population trends and conservation issues.
References
AINLEY, D.G. 1995. Ashy Storm-Petrel (Oceanodroma homochroa). In: Poole, A. (Ed.) The Birds of North America Online. Ithaca, NY: Cornell Lab of Ornithology. [Available online at: http://bna.birds.cornell.edu/bna/species/185/articles/introduction. Accessed 13 March 2016.]
AINLEY, D.G. & OSBORNE, T. 1972. A Marin County, California, breeding site for Ashy Petrels. California Birds 3: 71.
AINLEY, D.G., HENDERSON, R.P. & STRONG C.S. 1990. Leach's Storm-Petrel and Ashy Storm-Petrel. In: AINLEY, D.G. & BOEKELHEIDE, R.J. (Eds.) Seabirds of the Farallon Islands: ecology, dynamics, and structure of an upwelling-system community. Stanford, CA: Stanford University Press. pp. 128-162.
BRADLEY, R. 2011. PRBO technical brief: new assessment of Ashy-Storm Petrels on the Farallon Islands. Petaluma, CA: PRBO Conservation Science.
CARTER, H.R., McCHESNEY, G.J., JAQUES, D.L., ET AL. 1992. Breeding populations of seabirds in California, 1989-1991. Volumes 1 and 2. Dixon, CA: US Fish and Wildlife Service, Northern Prairie Wildlife Research Center.
CARTER, H.R., McIVER, W.R. & McCHESNEY, G.J. 2008. Ashy Storm-Petrel (Oceanodroma homochroa). In: SHUFORD, W.D. & GARDALI, T. (Eds.) California Bird Species of Special Concern: a ranked assessment of species, subspecies, and distinct populations of birds of immediate conservation concern in California. Studies of Western Birds 1. Camarillo, CA: Western Field Ornithologists; and Sacramento, CA: California Department of Fish and Game. pp. 117-124.
CARTER, H.R., HENDERSON, R.P., BECKER, B.H. & WEINSTEIN, A. 2012. Status of the Ashy Storm-Petrel at Bird Rock, Marin County, California, 1969-2012. Davis, CA: California Institute of Environmental Studies; Point Reyes Station, CA: Point Reyes National Seashore; and Emeryville, CA: California Audubon.
CARTER, H.R., PARKER, M.W., KOEPKE, J.S. & WHITWORTH, D.L. 2015. Breeding of the Ashy Storm-Petrel in central Mendocino County, California. Western Birds 46: 49-65.
HENDERSON, R.P., BECKER, B.H., WEINSTEIN, A.M., PARKER, M.W. & CARTER, H.R. 2014. Ashy Storm-Petrel monitoring and surveys at Point Reyes National Seashore in 2013. San Francisco, CA: California Audubon; and Point Reyes Station, CA: Point Reyes National Seashore.
McCHESNEY, G.J., CARTER, H.R. & PARKER, M.W. 2000. Nesting of Ashy Storm-Petrels and Cassin's Auklets in Monterey County, California. Western Birds 31: 178-183.
McIVER, W.R. 2002. Breeding phenology and reproductive success of Ashy Storm-Petrels (Oceanodroma homochroa) at Santa Cruz Island, California, 1995-98. MSc thesis. Arcata, CA: Humboldt State University.
McIVER, W.R., CARTER, H.R., GOLIGHTLY, R.T., McCHESNEY, G.J., WELSH, D. & HARVEY, A.L. 2009. Reproductive performance of Ashy Storm-Petrels (Oceanodroma homochroa) at Santa Cruz Island, California, in 1995-2007. In: DAMIANI, C.C. & GARCELON, D.K. (Eds.) Proceedings of the 7th California Islands Symposium. Arcata, CA: Institute for Wildlife Studies. pp. 269-281.
McIVER, W.R, CARTER, H.R., HARVEY, A.L., MAZURKIEWICZ, D.M. & MASON, J.W. 2016. Use of social attraction to restore Ashy Storm-Petrels Oceanodroma homochroa at Orizaba Rock, Santa Cruz Island, California. Marine Ornithology 44: 99-112.
SOWLS, A.L., DEGANGE, A.R., NELSON, J.W. & LESTER, G.S. 1980. Catalog of California seabird colonies. FWS/OBS 37/80. US Department of Interior, Fish and Wildlife Service, Biological Services Program.
SQUIRES, W.A. & HANSON, H.E. 1918. The destruction of birds at the lighthouses on the coast of California. Condor 20: 6-10.
SYDEMAN, W.J., NUR, N., MCLAREN, E.B. & McCHESNEY, G.J. 1998. Status and trends of the Ashy Storm-Petrel on Southeast Farallon Island, California, based upon capture-recapture analyses. Condor 100: 438-447.
WHITWORTH, D.L., CARTER, H.R., YOUNG, R.J., McCHSENEY, G.J., HESTER, M. & ALLEN, S. 2002. Status and distribution of Ashy Storm-Petrels (Oceanodroma homochroa) at Point Reyes National Seashore, California. Arcata, CA: Humboldt State University, Department of Wildlife.