Collapse of a protector species drives secondary endangerment in waterbird communities

• Published in: Biological Conservation
• Main Authors: Poysa, Hannu, Lammi, Esa, Poysa, Silvo, Vaananen, Veli-Matti
• Other Authors: Department of Forest Sciences, Wetland Ecology Group, Forest Ecology and Management
• Format: Article in Journal/Newspaper
• Language: English
• Published: ELSEVIER SCI IRELAND LTD 2020
• Subjects: Conservation status; Gull colony; Population trend; Secondary endangerment; Species interaction; Threatened species; MANN-KENDALL; LARUS-RIDIBUNDUS; EURASIAN WIGEON; GULL COLONIES; POPULATION; DUCKS; ASSOCIATION; PREDATORS; ABUNDANCE; REMOVAL; 1181 Ecology; evolutionary biology; 119 Other natural sciences; Kendall; Protector; Black-headed Gull; Chroicocephalus ridibundus; Larus ridibundus
• Online Access: http://hdl.handle.net/10138/323369

Interactions and dependence between species can transmit the effects of species declines within and between trophic levels, resulting in secondary endangerments and, in some cases, extinctions. Many mixed-species avian breeding aggregations commonly have a protector species whose aggressive nest def...