Invasion Complexities: The Diverse Impacts of Nonnative Species on Amphibians

Bucciarelli, Gary M.; Blaustein, Andrew R.; Garcia, Tiffany S.; Kats, Lee B.

doi:10.1643/ot-14-014

Cited by 74 publications

(58 citation statements)

References 209 publications

(236 reference statements)

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“…), removal efforts can be costly and impractical, especially when sustained monitoring and intervention are required to prevent reinvasion (Hobbs and Cramer , Bucciarelli et al. ). Worse yet, they can have negative or unexpected outcomes (Doubledee et al.…”

Section: Resultsmentioning

confidence: 99%

Disentangling effects of invasive species and habitat while accounting for observer error in a long‐term amphibian study

et al. 2019

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The invasive American bullfrog (Lithobates catesbeianus) and a variety of non‐native sport fish commonly co‐occur in lowland lentic habitats of the western United States. Both invasive taxa are implicated in declines of native amphibians in this region, but few long‐term studies of communities exist. Further, field studies of invasive–native interactions are complicated by confounding habitat modifications and observation errors. We surveyed amphibians and measured habitat characteristics for 12 yr across 38 wetland sites within the Willamette Valley, Oregon, USA. We assessed the influence of invasive species, habitat, and their interactions on the distributions of five native amphibian species using a multispecies dynamic occupancy model that accounted for false‐negative and false‐positive detections. In general, habitat characteristics—such as within‐pond vegetation cover, surrounding forest, and drought severity—were important for local persistence of native species when bullfrogs co‐occurred. We also found evidence of a cumulative negative effect of bullfrogs and non‐native fish (families Centrarchidae and Ictaluridae) on northern red‐legged frog (Rana aurora) local persistence that was mediated by the dominance of invasive reed canarygrass (Phalaris arundinacea). Non‐native fish and bullfrogs had variable effects on native amphibian species, but neither invasive taxon appears to be causing declines in occupied sites within our study area. Moreover, species relationships with habitat differed when invaders were present, indicating that certain habitats may increase persistence of native amphibians in the invaded landscape.

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Section: Resultsmentioning

confidence: 99%

Disentangling effects of invasive species and habitat while accounting for observer error in a long‐term amphibian study

et al. 2019

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“…Nonnative predator introductions provide a useful opportunity to study variation in prey experience with predators; the stocking of recreational game fish, in particular, has created unique fish–anuran predator–prey interactions (reviewed in Bucciarelli et al. ). Amphibians are a model prey taxa as they have complex life cycles, exhibit predator‐induced phenotypes, and are a group of conservation concern (Van Buskirk and Schmidt , Biek et al.…”

Section: Introductionmentioning

confidence: 99%

Evaluating adaptive, carry‐over, and plastic antipredator responses across a temporal gradient in Pacific chorus frogs

Garcia

Bredeweg

Urbina

et al. 2019

Ecology

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The development of antipredator traits is dependent on the frequency and intensity of predator exposure over evolutionary and ecological time. We hypothesized that prey species would respond with increasing accuracy when exposed to predators across generational, ontogenetic, and immediate time scales. We assessed larval Pacific chorus frog (PSRE; Pseudacris regilla) individuals that varied in population sympatry, embryonic conditioning, and immediate exposure to stocked populations of rainbow trout (Oncorhynchus mykiss). Using PSRE populations from sites with and without resident rainbow trout, we conditioned embryos to trout odor, PSRE alarm cues, trout odor in combination with alarm cues, or control water. After being hatched and reared in control water, individuals were exposed to the four predator cue treatments using a fully factorial design. Tadpoles from populations with resident rainbow trout did not behave or develop differently than tadpoles originating from fishless sites. However, we found evidence that PSRE reduced predation risk with a combination of carry‐over effect (i.e., transfer of information across life history stages) and within‐life stage phenotypically plastic mechanisms. We found both developmental and behavioral carry‐over effects: tadpoles conditioned with trout odor as embryos grew more slowly and took refuge more often than control animals. Within‐life‐stage behavioral plasticity was observed in tadpoles from all treatment groups, responding to predator cues with increased refuge use. Potentially additive effects of predator exposure on prey response should be considered when predicting the ability of prey to recognize novel threats.

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“…), analogously to other Mediterranean sites (20, 21). The introduction of species into an aquatic system has been shown to directly or indirectly impact aquatic fauna with complex effects, apparently depending on density of invaders, macrophyte abundance and community structure of ecosystems (22,23,24). In our case, the presence of this alien xeno-assemblage may represent a potential threat for the rich endemic herpetofauna (e.g., 4, 25, 26 and pers.…”

mentioning

confidence: 78%

Xenodiversity in a hot-spot of herpetological endemism: first records of Trachemys scripta, Ameiurus melas and Carassius auratus in a circum-Sardinian island

Battisti

2017

Belg. J. Zool.

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Invasion Complexities: The Diverse Impacts of Nonnative Species on Amphibians

Cited by 74 publications

References 209 publications

Disentangling effects of invasive species and habitat while accounting for observer error in a long‐term amphibian study

Disentangling effects of invasive species and habitat while accounting for observer error in a long‐term amphibian study

Evaluating adaptive, carry‐over, and plastic antipredator responses across a temporal gradient in Pacific chorus frogs

Xenodiversity in a hot-spot of herpetological endemism: first records of Trachemys scripta, Ameiurus melas and Carassius auratus in a circum-Sardinian island

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