caa a22 4500 605526575 CHVBK 20210128100804.0 cr unu---uuuuu 210128e20150901xx s 000 0 eng 10.1007/s10531-015-0930-8 doi (NATIONALLICENCE)springer-10.1007/s10531-015-0930-8 Forest fragmentation does not matter to invasions by Hovenia dulcis [Elektronische Daten] [Danira Padilha, Alexandre Loregian, Jean Budke] Testing whether biological invasions can be facilitated by habitat fragmentation can provide important insights for the study of invasion ecology. Hovenia dulcis is considered an aggressive non-native species in subtropical Atlantic forest ecosystems and following the assumptions of invasion ecology we hypothesized it would occur mainly in smaller forest remnants, which are more susceptible to edge effects compared to larger ones. In this study, we verified the relationships between H. dulcis invasion on forest remnants and the current habitat fragmentation and tested whether both occurrence and abundance of this species are driven by landscape and habitat variables. We selected 30 forest fragments in initial, middle or late successional stages and verified the occurrence and abundance of trees and saplings of H. dulcis. We evaluated spatial autocorrelation and the influence of landscape and habitat metrics on occurrence and abundance of such species and the influence of fruiting trees (adults) on the abundance of non-adult individuals. We found that H. dulcis distribution was not related to geographic distance among remnants. The occurrence of adult H. dulcis was directly associated to closed-canopy areas and remnant shape and, contrary our initial hypothesis, not related to remnant size. The occurrence of adult trees increased H. dulcis regeneration leading to higher sapling abundance. High abundance of H. dulcis saplings close to adult trees pointed out the successful colonization of recently invaded Atlantic forest remnants. We showed that this invasive tree species successfully invades closed-canopy forest fragments, which highlight undisturbed subtropical Atlantic forest habitats are as susceptible to biological invasions as disturbed ones. Springer Science+Business Media Dordrecht, 2015 Biological invasions nationallicence Canopy coverage nationallicence Habitat fragmentation nationallicence Landscape ecology nationallicence Padilha Danira Departamento de Ecologia, Instituto de Ciências Biológicas (ICB V), Universidade Federal de Goiás, CP 131, CEP 74001-970, Goiânia, GO, Brazil aut Loregian Alexandre Departamento de Ecologia, Instituto de Biociências, Universidade Federal do Rio Grande do Sul, CP 15007, CEP 91501-970, Porto Alegre, RS, Brazil aut Budke Jean Departamento de Ciências Biológicas, Universidade Regional Integrada do Alto Uruguai e das Missões - URI Campus de Erechim, Av. Sete de Setembro, 1628, CEP 99700-000, Erechim, RS, Brazil aut Biodiversity and Conservation Springer Netherlands 24/9(2015-09-01), 2293-2304 0960-3115 24:9<2293 2015 24 10531 https://doi.org/10.1007/s10531-015-0930-8 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s10531-015-0930-8 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Padilha Danira Departamento de Ecologia, Instituto de Ciências Biológicas (ICB V), Universidade Federal de Goiás, CP 131, CEP 74001-970, Goiânia, GO, Brazil aut NATIONALLICENCE 700 1- Loregian Alexandre Departamento de Ecologia, Instituto de Biociências, Universidade Federal do Rio Grande do Sul, CP 15007, CEP 91501-970, Porto Alegre, RS, Brazil aut NATIONALLICENCE 700 1- Budke Jean Departamento de Ciências Biológicas, Universidade Regional Integrada do Alto Uruguai e das Missões - URI Campus de Erechim, Av. Sete de Setembro, 1628, CEP 99700-000, Erechim, RS, Brazil aut NATIONALLICENCE 773 0- Biodiversity and Conservation Springer Netherlands 24/9(2015-09-01), 2293-2304 0960-3115 24:9<2293 2015 24 10531