Long-term population trends of introduced mammals on an tropical island
Research output: Contribution to journal › Journal article › Research › peer-review
Standard
Long-term population trends of introduced mammals on an tropical island. / Haji, Júlio; Ferreguetti, Atilla; Bovendorp, Ricardo S.; Bueno, Rafael S.; Gonçalves, Fernando; Galetti, Mauro.
In: Global Ecology and Conservation, Vol. 46, e02623, 2023.Research output: Contribution to journal › Journal article › Research › peer-review
Harvard
APA
Vancouver
Author
Bibtex
}
RIS
TY - JOUR
T1 - Long-term population trends of introduced mammals on an tropical island
AU - Haji, Júlio
AU - Ferreguetti, Atilla
AU - Bovendorp, Ricardo S.
AU - Bueno, Rafael S.
AU - Gonçalves, Fernando
AU - Galetti, Mauro
N1 - Publisher Copyright: © 2023 The Authors
PY - 2023
Y1 - 2023
N2 - The introduction of species in areas with no top-down control is a recipe for ecosystem catastrophe. Theory predicts that introduced species in areas that lack predators may experience rapid growth and subsequently crash or stabilize around the carrying capacity. Impressively, there are very few studies on the population trend of tropical forest-dwelling mammals. In 1983, 100 individuals from 15 species of generalist mammals were introduced on an 828-ha tropical island in Southeast Brazil (Anchieta Island). Here, we present the status and population dynamics of the introduced species after 19, 21, 35, 38, and 39 years based on 611 km of line transects split into diurnal and nocturnal surveys. Among the introduced species, five were extinct and two species became super-abundant. The population of agouti has been fluctuating around 900 individuals and black-tufted marmoset around 600 individuals which may reflect the carrying capacity of the island. Our results showed that a tropical island, without top predators, resulted in a massive population explosion of 2 of the 15 introduced mammals, demonstrating that colonization and invasion processes are not straightforward to predict.
AB - The introduction of species in areas with no top-down control is a recipe for ecosystem catastrophe. Theory predicts that introduced species in areas that lack predators may experience rapid growth and subsequently crash or stabilize around the carrying capacity. Impressively, there are very few studies on the population trend of tropical forest-dwelling mammals. In 1983, 100 individuals from 15 species of generalist mammals were introduced on an 828-ha tropical island in Southeast Brazil (Anchieta Island). Here, we present the status and population dynamics of the introduced species after 19, 21, 35, 38, and 39 years based on 611 km of line transects split into diurnal and nocturnal surveys. Among the introduced species, five were extinct and two species became super-abundant. The population of agouti has been fluctuating around 900 individuals and black-tufted marmoset around 600 individuals which may reflect the carrying capacity of the island. Our results showed that a tropical island, without top predators, resulted in a massive population explosion of 2 of the 15 introduced mammals, demonstrating that colonization and invasion processes are not straightforward to predict.
KW - Atlantic forest
KW - Biological invasion
KW - Capuchin monkeys
KW - Coatis
KW - Distance sampling
KW - Line transect
KW - Parque Estadual Ilha Anchieta
U2 - 10.1016/j.gecco.2023.e02623
DO - 10.1016/j.gecco.2023.e02623
M3 - Journal article
AN - SCOPUS:85170522221
VL - 46
JO - Global Ecology and Conservation
JF - Global Ecology and Conservation
SN - 2351-9894
M1 - e02623
ER -
ID: 367713137