Post-Release Behavior of Surf Scoters (Melanitta perspicillata) Following an Oil Spill: An Experimental Approach to Evaluating Rehabilitation Success

Richard T. Golightly, Pia O. Gabriel, Courtney L. Lockerby, Susan E.W.De La Cruz, John Y. Takekawa, Laird A. Henkel, J. Gregory Massey, Michael H Ziccardi

Research output: Contribution to journalArticle

Abstract

Effectiveness of rehabilitating wildlife following oil spills has been controversial. Impacts include mortality or changes in behavior affecting health or reproduction. Immediately following a bunker fuel oil spill on San Francisco Bay, California, USA, a unique experiment was conducted to examine the movement and foraging behavior of Surf Scoters (Melanitta perspicillata) that had been oiled, captured, cleaned, rehabilitated, and radio-marked. Unoiled Surf Scoters were similarly cleaned, rehabilitated, and radio-marked while other unoiled Surf Scoters were radio-marked as controls. Surf Scoters in the control group had larger home-ranges (46.29 ± 3.23 km 2 ) than either the oiled/rehabilitated (32.58 ± 5.48 km 2 ) or rehabilitated only groups (31.06 ± 3.05 km 2 ); the control group also was more likely to use unsheltered, shallow areas of the bay (66.9 ± 4.3% of locations) than either the oiled/rehabilitated (50.3 ± 5.2%) or rehabilitated only groups (58.2 ± 6.5%). The oiled/rehabilitated group was closer to shore (986 ± 149 m) than rehabilitated (1,894 ± 295 m) or control groups (2,113 ± 227 m). Differences in habitat use, movement patterns, and home range sizes indicated that Surf Scoters held in captivity were more restricted in their movements; therefore, captivity and rehabilitation practices may also influence success of the rehabilitation.

Original languageEnglish (US)
Pages (from-to)39-50
Number of pages12
JournalWaterbirds
Volume42
Issue number1
DOIs
StatePublished - Jan 1 2019

Fingerprint

oil spills
radio
fuel oils
behavior change
wildlife
foraging
habitats
home range

Keywords

  • California
  • Melanitta perspicillata
  • oil exposure
  • radio telemetry
  • San Francisco Bay
  • Surf Scoter
  • wildlife rehabilitation

ASJC Scopus subject areas

  • Animal Science and Zoology

Cite this

Post-Release Behavior of Surf Scoters (Melanitta perspicillata) Following an Oil Spill : An Experimental Approach to Evaluating Rehabilitation Success. / Golightly, Richard T.; Gabriel, Pia O.; Lockerby, Courtney L.; Cruz, Susan E.W.De La; Takekawa, John Y.; Henkel, Laird A.; Massey, J. Gregory; Ziccardi, Michael H.

In: Waterbirds, Vol. 42, No. 1, 01.01.2019, p. 39-50.

Research output: Contribution to journalArticle

Golightly, Richard T. ; Gabriel, Pia O. ; Lockerby, Courtney L. ; Cruz, Susan E.W.De La ; Takekawa, John Y. ; Henkel, Laird A. ; Massey, J. Gregory ; Ziccardi, Michael H. / Post-Release Behavior of Surf Scoters (Melanitta perspicillata) Following an Oil Spill : An Experimental Approach to Evaluating Rehabilitation Success. In: Waterbirds. 2019 ; Vol. 42, No. 1. pp. 39-50.
@article{00ac1b8c810746b8a142e4e3e3c706a1,
title = "Post-Release Behavior of Surf Scoters (Melanitta perspicillata) Following an Oil Spill: An Experimental Approach to Evaluating Rehabilitation Success",
abstract = "Effectiveness of rehabilitating wildlife following oil spills has been controversial. Impacts include mortality or changes in behavior affecting health or reproduction. Immediately following a bunker fuel oil spill on San Francisco Bay, California, USA, a unique experiment was conducted to examine the movement and foraging behavior of Surf Scoters (Melanitta perspicillata) that had been oiled, captured, cleaned, rehabilitated, and radio-marked. Unoiled Surf Scoters were similarly cleaned, rehabilitated, and radio-marked while other unoiled Surf Scoters were radio-marked as controls. Surf Scoters in the control group had larger home-ranges (46.29 ± 3.23 km 2 ) than either the oiled/rehabilitated (32.58 ± 5.48 km 2 ) or rehabilitated only groups (31.06 ± 3.05 km 2 ); the control group also was more likely to use unsheltered, shallow areas of the bay (66.9 ± 4.3{\%} of locations) than either the oiled/rehabilitated (50.3 ± 5.2{\%}) or rehabilitated only groups (58.2 ± 6.5{\%}). The oiled/rehabilitated group was closer to shore (986 ± 149 m) than rehabilitated (1,894 ± 295 m) or control groups (2,113 ± 227 m). Differences in habitat use, movement patterns, and home range sizes indicated that Surf Scoters held in captivity were more restricted in their movements; therefore, captivity and rehabilitation practices may also influence success of the rehabilitation.",
keywords = "California, Melanitta perspicillata, oil exposure, radio telemetry, San Francisco Bay, Surf Scoter, wildlife rehabilitation",
author = "Golightly, {Richard T.} and Gabriel, {Pia O.} and Lockerby, {Courtney L.} and Cruz, {Susan E.W.De La} and Takekawa, {John Y.} and Henkel, {Laird A.} and Massey, {J. Gregory} and Ziccardi, {Michael H}",
year = "2019",
month = "1",
day = "1",
doi = "10.1675/063.042.0105",
language = "English (US)",
volume = "42",
pages = "39--50",
journal = "Colonial Waterbirds",
issn = "0738-6028",
publisher = "The Waterbird Society",
number = "1",

}

TY - JOUR

T1 - Post-Release Behavior of Surf Scoters (Melanitta perspicillata) Following an Oil Spill

T2 - An Experimental Approach to Evaluating Rehabilitation Success

AU - Golightly, Richard T.

AU - Gabriel, Pia O.

AU - Lockerby, Courtney L.

AU - Cruz, Susan E.W.De La

AU - Takekawa, John Y.

AU - Henkel, Laird A.

AU - Massey, J. Gregory

AU - Ziccardi, Michael H

PY - 2019/1/1

Y1 - 2019/1/1

N2 - Effectiveness of rehabilitating wildlife following oil spills has been controversial. Impacts include mortality or changes in behavior affecting health or reproduction. Immediately following a bunker fuel oil spill on San Francisco Bay, California, USA, a unique experiment was conducted to examine the movement and foraging behavior of Surf Scoters (Melanitta perspicillata) that had been oiled, captured, cleaned, rehabilitated, and radio-marked. Unoiled Surf Scoters were similarly cleaned, rehabilitated, and radio-marked while other unoiled Surf Scoters were radio-marked as controls. Surf Scoters in the control group had larger home-ranges (46.29 ± 3.23 km 2 ) than either the oiled/rehabilitated (32.58 ± 5.48 km 2 ) or rehabilitated only groups (31.06 ± 3.05 km 2 ); the control group also was more likely to use unsheltered, shallow areas of the bay (66.9 ± 4.3% of locations) than either the oiled/rehabilitated (50.3 ± 5.2%) or rehabilitated only groups (58.2 ± 6.5%). The oiled/rehabilitated group was closer to shore (986 ± 149 m) than rehabilitated (1,894 ± 295 m) or control groups (2,113 ± 227 m). Differences in habitat use, movement patterns, and home range sizes indicated that Surf Scoters held in captivity were more restricted in their movements; therefore, captivity and rehabilitation practices may also influence success of the rehabilitation.

AB - Effectiveness of rehabilitating wildlife following oil spills has been controversial. Impacts include mortality or changes in behavior affecting health or reproduction. Immediately following a bunker fuel oil spill on San Francisco Bay, California, USA, a unique experiment was conducted to examine the movement and foraging behavior of Surf Scoters (Melanitta perspicillata) that had been oiled, captured, cleaned, rehabilitated, and radio-marked. Unoiled Surf Scoters were similarly cleaned, rehabilitated, and radio-marked while other unoiled Surf Scoters were radio-marked as controls. Surf Scoters in the control group had larger home-ranges (46.29 ± 3.23 km 2 ) than either the oiled/rehabilitated (32.58 ± 5.48 km 2 ) or rehabilitated only groups (31.06 ± 3.05 km 2 ); the control group also was more likely to use unsheltered, shallow areas of the bay (66.9 ± 4.3% of locations) than either the oiled/rehabilitated (50.3 ± 5.2%) or rehabilitated only groups (58.2 ± 6.5%). The oiled/rehabilitated group was closer to shore (986 ± 149 m) than rehabilitated (1,894 ± 295 m) or control groups (2,113 ± 227 m). Differences in habitat use, movement patterns, and home range sizes indicated that Surf Scoters held in captivity were more restricted in their movements; therefore, captivity and rehabilitation practices may also influence success of the rehabilitation.

KW - California

KW - Melanitta perspicillata

KW - oil exposure

KW - radio telemetry

KW - San Francisco Bay

KW - Surf Scoter

KW - wildlife rehabilitation

UR - http://www.scopus.com/inward/record.url?scp=85063605437&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85063605437&partnerID=8YFLogxK

U2 - 10.1675/063.042.0105

DO - 10.1675/063.042.0105

M3 - Article

AN - SCOPUS:85063605437

VL - 42

SP - 39

EP - 50

JO - Colonial Waterbirds

JF - Colonial Waterbirds

SN - 0738-6028

IS - 1

ER -