By Fred Kraus
The conservation risk posed via invasive alien species has turn into well-recognized over the last 20 years, while the matter keeps to extend speedily in scope. examine and administration awareness to this factor has, even though, been taxonomically biased towards teams having huge, seen affects, and the invasive capability of alternative organisms with sophisticated or cryptic affects is still mostly unassessed. Alien reptiles and amphibians, even though delivering some of the better-known examples of critical invasion affects, have by no means been scientifically assessed as a bunch for his or her strength invasiveness. This e-book examines the capability wherein alien reptiles and amphibians are transported through people; surveys their ecological, evolutionary, financial, and wellbeing and fitness affects; stories the administration responses taken opposed to them; and summarizes the rapid examine and administration efforts had to mitigate the chance posed via those organisms. It additionally presents a complete database of herpetofaunal introductions around the world and a bibliography of aiding literature; the database is usually supplied on CD-ROM on the way to facilitate use of the information by means of researchers. the aim of the publication is to summarize our present figuring out of herpetofaunal invasiveness and stimulate extra administration and examine actions had to lessen the affects of those species.
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Extra info for Alien Reptiles and Amphibians: a Scientific Compendium and Analysis (Invading Nature - Springer Series in Invasion Ecology)
24 Relative importance of major introduction pathways in Europe, as measured by all introductions (solid bars) or only those leading to successful establishment (open bars) Geographic Variation 47 Fig. 25 Relative importance of major introduction pathways in the Caribbean, as measured by all introductions (solid bars) or only those leading to successful establishment (open bars) Fig. 26 Relative importance of major introduction pathways in the Pacific Islands, as measured by all introductions (solid bars) or only those leading to successful establishment (open bars) Within the 12 regions examined, eight have received introductions representative of all six major pathways, two have five pathways represented, and only two have as few as four pathways (Fig.
These examples will be discussed in Chapter 4. History of Research on Alien Reptiles and Amphibians Although impacts from some alien invasions have been recognized since the late 1800s (cf. Elton, 1958), it wasn’t until rather recently that problems associated with reptile and amphibian invasions began to be noticed or documented. Hence, while Ebenhard (1988) could devote a 107-page monograph to the ecological impacts of alien birds and mammals, mention of reptiles and amphibians is absent from Elton (1958) and Mooney and Drake (1986).
2004a), and a recent book summarizes some of what is known about particular established species of alien reptiles and amphibians (C. Lever, 2003). A brief overview of some common pathways and impacts of alien herpetofauna has recently appeared (Scalera, 2007a) but is focused on those species associated with aquatic habitats. There have been, however, virtually no studies that test explicit scientific hypotheses about herpetological invasions – most work to date has been simply descriptive. Little knowledge, too, has been added that would be practically useful for stemming the rising tide of naturalized populations of alien reptiles and amphibians.
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