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An assessment of population size and distribution ofharbour seals in the Republic of Ireland during the moultseason in August 2003

Research output: Contribution to journalArticle

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An assessment of population size and distribution ofharbour seals in the Republic of Ireland during the moultseason in August 2003. / Cronin, M; Duck, Callan David; O'Cadhla, O; Nairn, R; Strong, D; O'Keefe, C.

In: Journal of Zoology, Vol. 273, No. 2, 10.2007, p. 131-139.

Research output: Contribution to journalArticle

Harvard

Cronin, M, Duck, CD, O'Cadhla, O, Nairn, R, Strong, D & O'Keefe, C 2007, 'An assessment of population size and distribution ofharbour seals in the Republic of Ireland during the moultseason in August 2003' Journal of Zoology, vol. 273, no. 2, pp. 131-139. https://doi.org/10.1111/j.1469-7998.2007.00316.x

APA

Cronin, M., Duck, C. D., O'Cadhla, O., Nairn, R., Strong, D., & O'Keefe, C. (2007). An assessment of population size and distribution ofharbour seals in the Republic of Ireland during the moultseason in August 2003. Journal of Zoology, 273(2), 131-139. https://doi.org/10.1111/j.1469-7998.2007.00316.x

Vancouver

Cronin M, Duck CD, O'Cadhla O, Nairn R, Strong D, O'Keefe C. An assessment of population size and distribution ofharbour seals in the Republic of Ireland during the moultseason in August 2003. Journal of Zoology. 2007 Oct;273(2):131-139. https://doi.org/10.1111/j.1469-7998.2007.00316.x

Author

Cronin, M ; Duck, Callan David ; O'Cadhla, O ; Nairn, R ; Strong, D ; O'Keefe, C. / An assessment of population size and distribution ofharbour seals in the Republic of Ireland during the moultseason in August 2003. In: Journal of Zoology. 2007 ; Vol. 273, No. 2. pp. 131-139.

Bibtex - Download

@article{342ff5e31d6847d69e39cbe5eacf2455,
title = "An assessment of population size and distribution ofharbour seals in the Republic of Ireland during the moultseason in August 2003",
abstract = "The status of Ireland's harbour seal Phoca vitulina vitulina population is poorly understood. The most recent national population estimate dates back to the breeding season in 1978 and did not cover the entire coastline. Reliable up-to-date information on the abundance and distribution of harbour seals in Ireland is necessary to assess the conservation status of the species and for the effective identification, management and monitoring of special areas of conservation required for harbour seals under the EU Habitats Directive. To provide comprehensive current information on Ireland's harbour seal population, a geographically extensive survey was conducted along the coastline of the Republic of Ireland during the species' annual moult in August 2003. This complemented a similar survey of Northern Ireland, which was conducted in 2002. Using thermal imaging technology, haul-out groups of harbour seals and grey seals Halichoerus grypus were identified from the air, aerial-counts were obtained and compared with simultaneous ground-count data from selected sites. Harbour seal distribution recorded during the 2003 moult season was concentrated in the south-west, west and north-west of the country. This national survey yielded a minimum population estimate for the Republic of Ireland of 2905 harbour seals, delivering an effective baseline for current and future population research.",
keywords = "harbour seal, aerial survey, thermal imagery, population, PHOCA-VITULINA-RICHARDSI, SAN-MIGUEL-ISLAND, COMMON SEALS, NORTHEAST SCOTLAND, HAULOUT BEHAVIOR, MORAY FIRTH, WADDEN SEA, ALASKA, ABUNDANCE, PATTERNS",
author = "M Cronin and Duck, {Callan David} and O O'Cadhla and R Nairn and D Strong and C O'Keefe",
year = "2007",
month = "10",
doi = "10.1111/j.1469-7998.2007.00316.x",
language = "English",
volume = "273",
pages = "131--139",
journal = "Journal of Zoology",
issn = "0952-8369",
publisher = "Wiley-Blackwell",
number = "2",

}

RIS (suitable for import to EndNote) - Download

TY - JOUR

T1 - An assessment of population size and distribution ofharbour seals in the Republic of Ireland during the moultseason in August 2003

AU - Cronin, M

AU - Duck, Callan David

AU - O'Cadhla, O

AU - Nairn, R

AU - Strong, D

AU - O'Keefe, C

PY - 2007/10

Y1 - 2007/10

N2 - The status of Ireland's harbour seal Phoca vitulina vitulina population is poorly understood. The most recent national population estimate dates back to the breeding season in 1978 and did not cover the entire coastline. Reliable up-to-date information on the abundance and distribution of harbour seals in Ireland is necessary to assess the conservation status of the species and for the effective identification, management and monitoring of special areas of conservation required for harbour seals under the EU Habitats Directive. To provide comprehensive current information on Ireland's harbour seal population, a geographically extensive survey was conducted along the coastline of the Republic of Ireland during the species' annual moult in August 2003. This complemented a similar survey of Northern Ireland, which was conducted in 2002. Using thermal imaging technology, haul-out groups of harbour seals and grey seals Halichoerus grypus were identified from the air, aerial-counts were obtained and compared with simultaneous ground-count data from selected sites. Harbour seal distribution recorded during the 2003 moult season was concentrated in the south-west, west and north-west of the country. This national survey yielded a minimum population estimate for the Republic of Ireland of 2905 harbour seals, delivering an effective baseline for current and future population research.

AB - The status of Ireland's harbour seal Phoca vitulina vitulina population is poorly understood. The most recent national population estimate dates back to the breeding season in 1978 and did not cover the entire coastline. Reliable up-to-date information on the abundance and distribution of harbour seals in Ireland is necessary to assess the conservation status of the species and for the effective identification, management and monitoring of special areas of conservation required for harbour seals under the EU Habitats Directive. To provide comprehensive current information on Ireland's harbour seal population, a geographically extensive survey was conducted along the coastline of the Republic of Ireland during the species' annual moult in August 2003. This complemented a similar survey of Northern Ireland, which was conducted in 2002. Using thermal imaging technology, haul-out groups of harbour seals and grey seals Halichoerus grypus were identified from the air, aerial-counts were obtained and compared with simultaneous ground-count data from selected sites. Harbour seal distribution recorded during the 2003 moult season was concentrated in the south-west, west and north-west of the country. This national survey yielded a minimum population estimate for the Republic of Ireland of 2905 harbour seals, delivering an effective baseline for current and future population research.

KW - harbour seal

KW - aerial survey

KW - thermal imagery

KW - population

KW - PHOCA-VITULINA-RICHARDSI

KW - SAN-MIGUEL-ISLAND

KW - COMMON SEALS

KW - NORTHEAST SCOTLAND

KW - HAULOUT BEHAVIOR

KW - MORAY FIRTH

KW - WADDEN SEA

KW - ALASKA

KW - ABUNDANCE

KW - PATTERNS

UR - http://www.scopus.com/inward/record.url?scp=34748889519&partnerID=8YFLogxK

UR - http://www.blackwell-synergy.com/doi/full/10.1111/j.1469-7998.2007.00316.x

U2 - 10.1111/j.1469-7998.2007.00316.x

DO - 10.1111/j.1469-7998.2007.00316.x

M3 - Article

VL - 273

SP - 131

EP - 139

JO - Journal of Zoology

T2 - Journal of Zoology

JF - Journal of Zoology

SN - 0952-8369

IS - 2

ER -

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ID: 398420