Estimates of numbers of kelp gulls and Kerguelen and Antarctic terns breeding at the Prince Edward Islands, 1996/1997-2008/2009

被引：0

作者：

Whittington, P. A. ^{[1
,2
]}

Crawford, R. J. M. ^{[3
,4
]}

Dyer, B. M. ^{[3
]}

Ryan, P. G. ^{[5
]}

机构：

[1] E London Museum, ZA-5213 Southernwood, South Africa

[2] Nelson Mandela Metropolitan Univ, Dept Zool, ZA-6031 Port Elizabeth, South Africa

[3] Marine & Coastal Management, Dept Environm Affairs, ZA-8012 Cape Town, South Africa

[4] Univ Cape Town, Dept Zool, Anim Demog Unit, ZA-7701 Rondebosch, South Africa

[5] Univ Cape Town, Percy Fitzpatrick Inst, DST NRF Ctr Excellence, ZA-7701 Rondebosch, South Africa

来源：

AFRICAN JOURNAL OF MARINE SCIENCE | 2009年 / 31卷 / 03期

基金：

新加坡国家研究基金会;

关键词：

Antarctic tern; kelp gull; Kerguelen tern; population trend; Prince Edward Islands; SURFACE-NESTING SEABIRDS; MARION ISLAND; SOUTH-AFRICA; PLUMAGE; OCEAN; AGE;

D O I：

10.2989/AJMS.2009.31.3.17.1005

中图分类号：

Q17 [水生生物学];

学科分类号：

071004 ;

摘要：

Breeding numbers of Laridae and other surface-nesting seabirds have been monitored at sub-Antarctic Marion Island since 1996/1997 and counts of breeding birds were made at nearby Prince Edward Island in December 2001 and December 2008. Four species are regular breeders at the islands: Subantarctic skua Catharacta antarctica, kelp gull Larus dominicanus, Antarctic tern Sterna vittata and Kerguelen tern S. virgata. The latter three species currently each have populations of below 150 breeding pairs at the islands. Kelp gull numbers appear to be relatively stable though they may have decreased since the 1980s. Kerguelen tern numbers decreased and then recovered at Marion Island, but numbers of the species have declined at Prince Edward Island and it maintains a tenuous foothold there. The small Antarctic tern population appears to be stable.

引用

页码：439 / 444

页数：6

共 29 条

[1] [Anonymous], [No title captured]
[2] BERRUTI A, 1976, Notornis, V23, P243
[3] Bester MN, 2002, S AFR J WILDL RES, V32, P65
[4] *BIRDLIFE INT, 2009, SPEC FACTSH STERN VI
[5] BROOKE R K, 1979, Durban Museum Novitates, V12, P27
[6] BROOKE RK, 1984, S AFR NAT SCI PROG R, V97, P1
[7] COOPER J, 1990, South African Journal of Antarctic Research, V20, P40
[8] Recent trends in numbers of four species of penguins at the Prince Edward Islands
Crawford, R. J. M.
Whittington, P. A.
Upfold, L.
Ryan, P. G.
Petersen, S. L.
Dyer, B. M.
Cooper, J.
[J]. AFRICAN JOURNAL OF MARINE SCIENCE, 2009, 31 (03) : 419 - 426
[9] Crawford R.J.M., 2005, ROBERTS BIRDS SO AFR, P439
[10] Conserving surface-nesting seabirds at the Prince Edward Islands: The roles of research, monitoring and legislation
Crawford, RJM
Cooper, J
[J]. AFRICAN JOURNAL OF MARINE SCIENCE, 2003, 25 : 415 - 426

← 1 2 3 →