US EPA

6501321 

Journal Article 

Waterbirds Dynamics at Bool Lagoon, South Australia, 1983-87 

Harper, M 

1990 

Monthly waterbird counts from July 1983 to June 1987 at Bool Lagoon Game Reserve and Hacks Lagoon Conservation Park in the southeast of South Australia were used to investigate relationships between the numbers of each species, and season, water depth and rainfall. Numbers of little black cormorant, great crested grebe, sacred ibis, straw-necked ibis and whiskered tern were most influenced by season. Little pied cormorant, royal spoonbill, musk duck, white-faced heron, yellow-billed spoonbill, black swan, brolga, masked lapwing and silver gull numbers were associated with variation in water level of the lagoon. Pacific black duck numbers were inversely related to lagoon levels and local rainfall, while numbers of Australian shelduck varied inversely with local rainfall. Numbers of most waterbirds were highest at the Bool Lagoon complex in either spring or early autumn, indicating the importance of this wetland as a breeding site and dry season refuge respectively. (See also W91- 00687) (Author 's abstract) 

; Australia Bool Lagoon Limnology Population dynamics Water birds; Rainfall Seasonal variation Water depth Wetlands/