title: Historic Mining and Agriculture as Indicators of Occurrence and Abundance of Widespread Invasive Plant Species.
abstract: Anthropogenic disturbances often change ecological communities and provide opportunities for non-native species invasion. Understanding the impacts of disturbances on species invasion is therefore crucial for invasive species management. We used generalized linear mixed effects models to explore the influence of land-use history and distance to roads on the occurrence and abundance of two invasive plant species (Rosa multiflora and Berberis thunbergii) in a 900-ha deciduous forest in the eastern U.S.A., the Powdermill Nature Reserve. Although much of the reserve has been continuously forested since at least 1939, aerial photos revealed a variety of land-uses since then including agriculture, mining, logging, and development. By 2008, both R. multiflora and B. thunbergii were widespread throughout the reserve (occurring in 24% and 13% of 4417 10-m diameter regularly-placed vegetation plots, respectively) with occurrence and abundance of each varying significantly with land-use history. Rosa multiflora was more likely to occur in historically farmed, mined, logged or developed plots than in plots that remained forested, (log odds of 1.8 to 3.0); Berberis thunbergii was more likely to occur in plots with agricultural, mining, or logging history than in plots without disturbance (log odds of 1.4 to 2.1). Mining, logging, and agriculture increased the probability that R. multiflora had >10% cover while only past agriculture was related to cover of B. thunbergii. Proximity to roads was positively correlated with the occurrence of R. multiflora (a 0.26 increase in the log odds for every 1-m closer) but not B. thunbergii, and roads had no impact on the abundance of either species. Our results indicated that a wide variety of disturbances may aid the introduction of invasive species into new habitats, while high-impact disturbances such as agriculture and mining increase the likelihood of high abundance post-introduction.
authors.affiliation: Department of Evolution, Ecology, and Organismal Biology, The Ohio State University, 318 W. 12th Avenue, Columbus, Ohio 43210-1293, United States of America.
authors.forename: Kellen
authors.initials: K
authors.lastname: Calinger
authors.affiliation: Department of Evolution, Ecology, and Organismal Biology, The Ohio State University, 318 W. 12th Avenue, Columbus, Ohio 43210-1293, United States of America.
authors.forename: Elisabeth
authors.initials: E
authors.lastname: Calhoon
authors.affiliation: Department of Evolution, Ecology, and Organismal Biology, The Ohio State University, 318 W. 12th Avenue, Columbus, Ohio 43210-1293, United States of America.
authors.forename: Hsiao-Chi
authors.initials: HC
authors.lastname: Chang
authors.affiliation: Powdermill Nature Reserve, Carnegie Museum of Natural History, 1847 Route 381, Rector, Pennsylvania 15677, United States of America; University Library, University of Illinois, Urbana, Illinois 61801, United States of America.
authors.forename: James
authors.initials: J
authors.lastname: Whitacre
authors.affiliation: Powdermill Nature Reserve, Carnegie Museum of Natural History, 1847 Route 381, Rector, Pennsylvania 15677, United States of America.
authors.forename: John
authors.initials: J
authors.lastname: Wenzel
authors.affiliation: Department of Evolution, Ecology, and Organismal Biology, The Ohio State University, 318 W. 12th Avenue, Columbus, Ohio 43210-1293, United States of America; Smithsonian Tropical Research Institute, Box 0843-03092, Balboa, Ancón, Panama.
authors.forename: Liza
authors.initials: L
authors.lastname: Comita
authors.affiliation: Department of Evolution, Ecology, and Organismal Biology, The Ohio State University, 318 W. 12th Avenue, Columbus, Ohio 43210-1293, United States of America.
authors.forename: Simon
authors.initials: S
authors.lastname: Queenborough
mesh_terms: D000383:Agriculture; D028142:Berberis / Q000502:physiology*; D017753:Ecosystem; D058865:Introduced Species; D008906:Mining; D027826:Rosa / Q000502:physiology*; D014481:United States