Publication
Factors influencing the relative abundance of invasive predators and omnivores on islands
dc.contributor.author | Lamelas-López, Lucas | |
dc.contributor.author | Santos, Maria J. | |
dc.date.accessioned | 2021-09-14T10:34:22Z | |
dc.date.available | 2021-09-14T10:34:22Z | |
dc.date.issued | 2021-05 | |
dc.description.abstract | Invasive alien species (IAS) are the major cause of native species extinctions on islands worldwide. To mitigate or eliminate IAS impacts, eradication is often the best alternative. However, IAS removal may result in cascading effects, through increase in prey abundance, mesopredator release, or competitor release. Our objective is to determine which ecological processes may influence the relative abundance of invasive carnivores and rodents on an insular system. We find that feral cat and mustelids relative abundance was strongly related by prey abundance, and for the feral cat, abundance was also controlled by habitat; these results suggest that bottom-up control through environmental filtering could be the mechanism explaining predator abundance. For rodents, we find that the abundance of the black rat was mostly controlled by the abundance of Norway rat and house mice, and food availability; the Norway rat by the abundance of black rat, a house mice and of mustelid predators; and house mouse by the other rodents and food availability. These results suggest that several mechanisms could be concurrently controlling abundance of these species; competition and predation for Norway rat, and competition and bottom-up control by environmental filtering for the other two rodents. While different factors explain the abundance of invasive species within the same functional group, food resource availability is, in general, the main controller of abundance of invasive rodents and carnivores in the Azores. Therefore, IAS management actions in these islands should focus on limiting the access to food resources and shelter, mainly near to human populations. | en |
dc.description.sponsorship | LLL (SFRH/BD/115022/2016) was supported by the Fundação para a Ciência e Tecnologia—FCT. MJS was supported by the University Research Priority Program in Global Change and Biodiversity from the University of Zürich. | en |
dc.description.version | info:eu-repo/semantics/publishedVersion | pt_PT |
dc.identifier.citation | Lamelas-López, L. & Santos, M.J. (2021). Factors influencing the relative abundance of invasive predators and omnivores on islands. "Biological Invasions", 23(9), 2819-2830. DOI:10.1007/s10530-021-02535-2 | en |
dc.identifier.doi | 10.1007/s10530-021-02535-2 | pt_PT |
dc.identifier.eissn | 1573-1464 | |
dc.identifier.issn | 1387-3547 | |
dc.identifier.uri | http://hdl.handle.net/10400.3/6052 | |
dc.language.iso | eng | pt_PT |
dc.peerreviewed | yes | pt_PT |
dc.publisher | Springer | pt_PT |
dc.relation | Mammal introductions on oceanic islands across a human disturbance gradient: conservation implications for the Azores islands. | |
dc.relation.publisherversion | https://link.springer.com/article/10.1007/s10530-021-02535-2 | pt_PT |
dc.subject | Azores | en |
dc.subject | Biological Invasions | en |
dc.subject | Bottom-up regulation | en |
dc.subject | Camera-trapping | en |
dc.subject | Carnivores | en |
dc.subject | Mesopredator Release Effect | en |
dc.subject | Oceanic Islands | en |
dc.subject | Rodents | en |
dc.title | Factors influencing the relative abundance of invasive predators and omnivores on islands | en |
dc.type | journal article | |
dspace.entity.type | Publication | |
oaire.awardTitle | Mammal introductions on oceanic islands across a human disturbance gradient: conservation implications for the Azores islands. | |
oaire.awardURI | info:eu-repo/grantAgreement/FCT/OE/SFRH%2FBD%2F115022%2F2016/PT | |
oaire.citation.conferencePlace | Switzerland | en |
oaire.citation.endPage | 2830 | pt_PT |
oaire.citation.issue | (9) | pt_PT |
oaire.citation.startPage | 2819 | pt_PT |
oaire.citation.title | Biological Invasions | en |
oaire.citation.volume | 23 | pt_PT |
oaire.fundingStream | OE | |
person.familyName | Lamelas López | |
person.givenName | Lucas | |
person.identifier.ciencia-id | 1F1B-49B1-E748 | |
person.identifier.orcid | 0000-0002-2230-7033 | |
project.funder.identifier | http://doi.org/10.13039/501100001871 | |
project.funder.name | Fundação para a Ciência e a Tecnologia | |
rcaap.rights | closedAccess | pt_PT |
rcaap.type | article | pt_PT |
relation.isAuthorOfPublication | 4b3b7be3-7ec3-45c7-a22b-3cb152a0132e | |
relation.isAuthorOfPublication.latestForDiscovery | 4b3b7be3-7ec3-45c7-a22b-3cb152a0132e | |
relation.isProjectOfPublication | 6e3402e8-ecb9-41d2-a047-a74b4a97a532 | |
relation.isProjectOfPublication.latestForDiscovery | 6e3402e8-ecb9-41d2-a047-a74b4a97a532 |
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