Abstract:
:Understanding the factors that determine rates of range expansion is not only crucial for developing risk assessment schemes and management strategies for invasive species, but also provides important insight into the ability of species to disperse in response to climate change. However, there is little knowledge on why some invasions spread faster than others at large spatiotemporal scales. Here, we examine the effects of human activities, species traits and characteristics of the invaded range on spread rates using a global sample of alien reptile and amphibian introductions. We show that spread rates vary remarkably among invaded locations within a species, and differ across biogeographical realms. Spread rates are positively related to the richness of native congeneric species and human-assisted dispersal in the invaded range but are negatively correlated with topographic heterogeneity. Our findings highlight the importance of environmental characteristics and human-assisted dispersal in developing robust frameworks for predicting species' range shifts.
journal_name
Ecol Lettjournal_title
Ecology lettersauthors
Liu X,Li X,Liu Z,Tingley R,Kraus F,Guo Z,Li Ydoi
10.1111/ele.12286subject
Has Abstractpub_date
2014-07-01 00:00:00pages
821-9issue
7eissn
1461-023Xissn
1461-0248journal_volume
17pub_type
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