Predation pressures on sooty terns by cats, rats and common mynas on Ascension Island in the South Atlantic

Publication Date: 
2019
Place of Publication:
Location:
Call Number: 
[EL]
Notes: 
Available on line, Island invasives: scaling up to meet the challenge, pp. 282–288. Occasional Paper SSC no. 62. Gland, Switzerland: IUCN.
ISBN_ISSN: 
ISBN: 978-2-8317-1961-0
978-2-8317-1962-7
DOI: https://doi.org/10.2305/IUCN.CH.2019.SSC-OP.62.en
Content Item Id: 
46903
Predation pressures on sooty terns by cats, rats and common mynas on Ascension Island in the South Atlantic
Abstract: 

Despite the presence of invasive black rats (Rattus rattus), common mynas (Acridotheres tristis), and feral domestic cats (Felis catus), sooty terns (Onychoprion fuscatus) breed in large numbers on Ascension Island in the tropical South Atlantic Ocean. These introduced predators impact the terns by destroying eggs or interrupting incubation (mynas), eating eggs (mynas and rats), eating chicks (rats and cats), or eating adults (cats). Between 1990 and 2015, 26 censuses of sooty terns and five of mynas were completed and myna predation was monitored on 10 occasions. Rat relative abundance indices were determined through trapping around the tern colonies and rat predation was monitored by counting chick

GEFPAS Project: 
No
Record Id: 
82626