Dataset Identification:
Resource Abstract:
- description: In 1996, 3330-3392 pairs of the endangered California least tern (Sterna antillarum browni) nested at 35 sites
along the coast of California. This 29% increase in breeding population size over 1995 resumes the predominant pattern since
1987 of exponential growth of the statewide population. Fledgling-to-pair ratios at most sites increased relative to those
in 1995, and terns nesting at several sites in 1996 were very successful. However, heavy predation at many San Diego County
sites (including a majority of those with high pair numbers) and a local food shortage at Venice Beach compromised statewide
fledgling production somewhat. Approximately 1981-2120 young terns fledged across the State, a record high and almost twice
the number fledged in 1995; statewide F/P = 0.58-0.64. Most sites experienced increases over 1995 in the number of breeding
pairs present, and several sites attracted more than 200 pairs. In 1996, 58% of the statewide population bred at only seven
sites (NAS Alameda, Venice Beach, Huntington Beach, Santa Margarita River/North Beach, Mission Bay/FAA Island and Mariner's
Point, Delta Beach/North), with the balance being distributed pretty evenly throughout the rest of the State. Almost half
of the fledglings produced in the State came from only four sites; 45% of all potential new breeders produced this year fledged
from NAS Alameda, Huntington Beach, Santa Margarita River/North Beach, and Delta Beach/North.; abstract: In 1996, 3330-3392
pairs of the endangered California least tern (Sterna antillarum browni) nested at 35 sites along the coast of California.
This 29% increase in breeding population size over 1995 resumes the predominant pattern since 1987 of exponential growth of
the statewide population. Fledgling-to-pair ratios at most sites increased relative to those in 1995, and terns nesting at
several sites in 1996 were very successful. However, heavy predation at many San Diego County sites (including a majority
of those with high pair numbers) and a local food shortage at Venice Beach compromised statewide fledgling production somewhat.
Approximately 1981-2120 young terns fledged across the State, a record high and almost twice the number fledged in 1995; statewide
F/P = 0.58-0.64. Most sites experienced increases over 1995 in the number of breeding pairs present, and several sites attracted
more than 200 pairs. In 1996, 58% of the statewide population bred at only seven sites (NAS Alameda, Venice Beach, Huntington
Beach, Santa Margarita River/North Beach, Mission Bay/FAA Island and Mariner's Point, Delta Beach/North), with the balance
being distributed pretty evenly throughout the rest of the State. Almost half of the fledglings produced in the State came
from only four sites; 45% of all potential new breeders produced this year fledged from NAS Alameda, Huntington Beach, Santa
Margarita River/North Beach, and Delta Beach/North.
Citation
- Title California Least Tern Breeding Survey 1996 Season.
-
- creation Date
2018-05-19T22:10:55.033577
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Metadata data stamp:
2018-08-07T01:23:16Z
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- notes: This metadata record was generated by an xslt transformation from a dc metadata record; Transform by Stephen M. Richard, based
on a transform by Damian Ulbricht. Run on 2018-08-07T01:23:16Z
Metadata contact
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pointOfContact
- organisation Name
CINERGI Metadata catalog
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- electronic Mail Address cinergi@sdsc.edu
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eng
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Metadata standard for this record:
ISO 19139 Geographic Information - Metadata - Implementation Specification
standard version:
2007
Metadata record identifier:
urn:dciso:metadataabout:a73075b9-6159-47bb-a3e4-347fd659e00c
Metadata record format is ISO19139 XML (MD_Metadata)