Potential Corridors for the Rusty Crayfish, Orconectes Rusticus, in Northern Wisconsin (USA) Lakes: Lessons for Exotic Invasions

Puth, Linda M.; Allen, Timothy F. H.

doi:10.1007/s10980-004-5649-y

Cited by 32 publications

(19 citation statements)

References 27 publications

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“…Functionally, there is often little difference between the two stages, as they both indicate movement of organisms to new habitats, although they may vary in the relative importance of human vectors vs. organismal dispersal for this movement (e.g. Hrabik & Magnuson 1999; Puth & Allen in press). This difference may become even more blurred in the case of well‐bounded habitat patches, such as lakes, islands or forest fragments, where new colonists must necessarily cross unfavourable habitat.…”

Section: Discussionmentioning

confidence: 99%

Studying invasion: have we missed the boat?

2005

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Invasive species, and the ensuing homogenization of the world's biota, form a global problem with consequences ranging from the decline and extirpation of native species to threats to human health. The magnitude of this issue demands a thorough understanding of the invasion process, which consists of three main stages: initial dispersal, establishment of self-sustaining populations, and spread. To assess the relative distribution of research effort among these stages, we conducted a literature review using 873 articles published in 23 major journals over the past 10 years. Of the 873 papers, only 96 (11.0%) studied initial dispersal, and only half of these (6.2% of the total) were empirical. As the first stage in a contingent process, we argue that initial dispersal is the best stage during which to direct management efforts. In addition, initial dispersal has direct relevance for fundamental ecological questions regarding community assembly and metacommunity dynamics. In so far that answering these questions and preventing invasion are goals of ecologists, the disparity in research effort noted here suggests that ecologists need to expand their efforts to include more research on initial dispersal.

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Section: Discussionmentioning

confidence: 99%

Studying invasion: have we missed the boat?

2005

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“…In Wisconsin, long-term records show that O. rusticus have increased from 7% of all crayfish records collected during the first 20 years of their invasion (1965)(1966)(1967)(1968)(1969)(1970)(1971)(1972)(1973)(1974)(1975)(1976)(1977)(1978)(1979)(1980)(1981)(1982)(1983)(1984) to 36% of all records during the most recent 20 years (Olden et al 2006b). Major vectors of O. rusticus introductions include bait bucket diskharge from recreational anglers, intentional releases by lakeusers for nuisance weed control, biological supply and pet trades, and natural dispersal (Lodge et al 2000, Puth andAllen 2005). Once established, O. rusticus has resulted in numerous ecological impacts manifested across entire lake food webs.…”

Section: Ecology Of Rusty Crayfish Orconectes Rusticusmentioning

confidence: 99%

Assessing ecosystem vulnerability to invasive rusty crayfish (Orconectes rusticus)

Olden

Zanden

Johnson

2011

Ecological Applications

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Despite the widespread introduction of nonnative species and the heterogeneity of ecosystems in their sensitivity to ecological impacts, few studies have assessed ecosystem vulnerability to the entire invasion process, from arrival to establishment and impacts. Our study addresses this challenge by presenting a probabilistic, spatially explicit approach to predicting ecosystem vulnerability to species invasions. Using the freshwater-rich landscapes of Wisconsin, USA, we model invasive rusty crayfish (Orconectes rusticus) as a function of exposure risk (i.e., likelihood of introduction and establishment of O. rusticus based on a species distribution model) and the sensitivity of the recipient community (i.e., likelihood of impacts on native O. virilis and O. propinquus based on a retrospective analysis of population changes). Artificial neural networks predicted that approximately 10% of 4200 surveyed lakes (n = 388) and approximately 25% of mapped streams (23 523 km total length) are suitable for O. rusticus introduction and establishment. A comparison of repeated surveys before vs. post-1985 revealed that O. virilis was six times as likely and O. propinquus was twice as likely to be extirpated in streams invaded by O. rusticus, compared to streams that were not invaded. Similarly, O. virilis was extirpated in over three-quarters of lakes invaded by O. rusticus compared to half of the uninvaded lakes, whereas no difference was observed for O. propinquus. We identified 115 lakes (approximately 3% of lakes) and approximately 5000 km of streams (approximately 6% of streams) with a 25% chance of introduction, establishment, and extirpation by O. rusticus of either native congener. By identifying highly vulnerable ecosystems, our study offers an effective strategy for prioritizing on-the-ground management action and informing decisions about the most efficient allocation of resources. Moreover, our results provide the flexibility for stakeholders to identify priority sites for prevention efforts given a maximum level of acceptable risk or based on budgetary or time restrictions. To this end, we incorporate the model predictions into a new online mapping tool with the intention of closing the communication gap between academic research and stakeholders that requires information on the prospects of future invasions.

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“…plants, fishes, birds and mammals) [9][10][11][12][13]. A recent synthetic review has noted that habitat connectivity and invader dispersal ability are important elements in biological invasions [14].…”

Section: Introductionmentioning

confidence: 99%

Habitat connectivity and resident shared predators determine the impact of invasive bullfrogs on native frogs in farm ponds

et al. 2014

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Habitat connectivity is considered to have an important role on the persistence of populations in the face of habitat fragmentation, in particular, for species with conservation concern. However, it can also impose indirect negative effects on native species through the spread of invasive species. Here, we investigated direct and indirect effects of habitat connectivity on populations of invasive bullfrogs and native wrinkled frogs and how these effects are modified by the presence of common carp, a resident shared predator, in a farm pond system in Japan. The distribution pattern analysis using a hierarchical Bayesian modelling indicated that bullfrogs had negative effects on wrinkled frogs, and that these negative effects were enhanced with increasing habitat connectivity owing to the metapopulation structure of bullfrogs. The analysis also suggested that common carp mitigated these impacts, presumably owing to a top-down trophic cascade through preferential predation on bullfrog tadpoles. These presumed interspecific interactions were supported by evidence from laboratory experiments, i.e. predation by carp was more intense on bullfrog tadpoles than on wrinkled frog tadpoles owing to the difference in refuge use. Our results indicate that metacommunity perspectives could provide useful insights for establishing effective management strategies of invasive species living in patchy habitats.

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Potential Corridors for the Rusty Crayfish, Orconectes Rusticus, in Northern Wisconsin (USA) Lakes: Lessons for Exotic Invasions

Cited by 32 publications

References 27 publications

Studying invasion: have we missed the boat?

Studying invasion: have we missed the boat?

Assessing ecosystem vulnerability to invasive rusty crayfish (Orconectes rusticus)

Habitat connectivity and resident shared predators determine the impact of invasive bullfrogs on native frogs in farm ponds

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