Diet Composition of Royal Tern (Thalasseus maximus) and Sandwich Tern (Thalasseus sandvicensis) at Isles Dernieres Barrier Island Refuge, Louisiana, USA

Autor:	Jeff S. Liechty, Aaron R. Pierce, Quenton C. Fontenot
Rok vydání:	2016
Předmět:	0106 biological sciences Sandwich tern 010604 marine biology & hydrobiology Royal tern Biology biology.organism_classification 01 natural sciences 010605 ornithology Predation Fishery Barrier island Anchovy Animal Science and Zoology Tern Bay Micropogonias
Zdroj:	Waterbirds. 39:58-68
ISSN:	1938-5390 1524-4695
DOI:	10.1675/063.039.0107
Popis:	The Isles Dernieres Barrier Island Refuge in Louisiana, USA, constitutes a major colonial waterbird breeding site, and several restoration projects have been undertaken to sustain waterbird populations on the refuge. However, very little is known about food resources that colonial waterbirds depend on in the Gulf of Mexico. Royal (Thalasseus maximus) and Sandwich (T. sandvicensis) tern diet composition was investigated to determine important food resources during the breeding period. Regurgitated prey items in the 2013 and 2014 breeding seasons were used to compare diet composition, prey item frequency, and prey item mass among four groups: Royal Tern adults, Royal Tern chicks, Sandwich Tern adults, and Sandwich Tern chicks. The two most frequent prey items were Atlantic croaker (Micropogonias undulatus) and bay anchovy (Anchoa mitchilli). Royal Tern adults consumed significantly more Sciaenids than any other tern group, and Sandwich Tern adults consumed more Engraulids than any other tern group...
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::f12055befe6cae0f79d1eec6ae8e3efa https://doi.org/10.1675/063.039.0107 Zobrazit plný text záznamu