AVIS-IBIS

Birds of Indian Subcontinent

Influence of Arctic Terns on Survival of Artificial and Natural Semipalmated Plover Nests

Publication Type:Journal Article
Year of Publication:2006
Authors:Nguyen, LP, Abraham, KF, Nol, E
Journal:Waterbirds
Volume:29
Issue:1
Date Published:2006
ISBN Number:1524-4695
Keywords:Charadriidae, Charadrius, Charadrius hiaticula, Charadrius semipalmatus, Laridae, Paradisaea, Sterna, Sterna macrura, Sterna paradisaea
Abstract:Abstract Survival of Semipalmated Plover (Charadrius semipalmatus) nests was compared in areas with and without nesting Arctic Terns (Sterna paradisaea) to determine whether the protection provided to plovers by association with this colonial species is passive or aggressive. Artificial and natural nests placed ≤100 m from terns had similar rates of survival (<10% of all nests lost to predators), and benefited substantially from protection against predators through aggressive behavior of nesting terns. Natural nests had much higher survival than artificial nests when positioned >100 m from nesting terns, suggesting that the presence of incubating adult plovers reduces the probability of nest predation. Nesting in association with Arctic Terns may represent an alternate form of habitat selection by Semipalmated Plovers and suggests that plovers can employ alternate nest defense strategies when opportunities are present.Abstract Survival of Semipalmated Plover (Charadrius semipalmatus) nests was compared in areas with and without nesting Arctic Terns (Sterna paradisaea) to determine whether the protection provided to plovers by association with this colonial species is passive or aggressive. Artificial and natural nests placed ≤100 m from terns had similar rates of survival (<10% of all nests lost to predators), and benefited substantially from protection against predators through aggressive behavior of nesting terns. Natural nests had much higher survival than artificial nests when positioned >100 m from nesting terns, suggesting that the presence of incubating adult plovers reduces the probability of nest predation. Nesting in association with Arctic Terns may represent an alternate form of habitat selection by Semipalmated Plovers and suggests that plovers can employ alternate nest defense strategies when opportunities are present.
URL:http://dx.doi.org/10.1675/1524-4695(2006)29[100:IOATOS]2.0.CO;2
Short Title:Waterbirds
Scratchpads developed and conceived by (alphabetical): Ed Baker, Katherine Bouton Alice Heaton Dimitris Koureas, Laurence Livermore, Dave Roberts, Simon Rycroft, Ben Scott, Vince Smith