Relationship between propagule pressure and colonization pressure in invasion ecology: a test with ships' ballast
نویسندگان
چکیده
منابع مشابه
Relationship between propagule pressure and colonization pressure in invasion ecology: a test with ships' ballast.
Increasing empirical evidence indicates the number of released individuals (i.e. propagule pressure) and number of released species (i.e. colonization pressure) are key determinants of the number of species that successfully invade new habitats. In view of these relationships, and the possibility that ships transport whole communities of organisms, we collected 333 ballast water and sediment sa...
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The observed rates and deleterious impacts of biological invasions have caused significant alarm in recent years, driving efforts to reduce the risk (establishment) of new introductions. Characterizing the supply of propagules is key to understanding invasion risk and developing effective management strategies. In coastal ecosystems, ships' ballast water is an important transfer mechanism (vect...
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© The Ecological Society of America www.frontiersinecology.org B invasions, a major and increasing agent of global biodiversity change, are often the result of inadvertent releases from trade and travel pathways (Levine et al. 2003; Ruiz and Carlton 2003; Drake and Lodge 2004). Empirical and theoretical evidence indicate that invasion risk can be decreased by reducing propagule pressure, specif...
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Predicting population establishment based on initial population size is a theoretically and empirically challenging problem whose resolution informs a multitude of applications. Indeed, it is a central problem in the management of introduced, endangered, harvested, and pathogenic organisms. We focus here on introduced species. We synthesize the current state of modeling in this predictive enter...
متن کاملHigh colonization and propagule pressure by ship ballast as a vector for the diatom genus Pseudo-nitzschia
Most harmful diatoms belong to the marine, planktonic genus Pseudo-nitzschia and are responsible for amnesic shellfish poisoning through the production of domoic acid. Fifteen Pseudo-nitzschia species, nine of them toxigenic (approximately 60% of the species found in our samples) were recovered from 185 ship ballast tanks (water and sediment) destined for Canadian ports. Our results demonstrate...
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ژورنال
عنوان ژورنال: Proceedings of the Royal Society B: Biological Sciences
سال: 2012
ISSN: 0962-8452,1471-2954
DOI: 10.1098/rspb.2011.2671