Invasive Predators: a synthesis of the past, present, and future

Pitt, William C.; Witmer, Gary W.

doi:10.1007/978-3-540-46046-6_12

Cited by 23 publications

(16 citation statements)

References 72 publications

(74 reference statements)

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“…In 1958, Hawai'i's Commissioners of Agriculture and Forestry approved the introduction of the Barn Owl to help control rodents (Tomich 1962), but this measure largely failed despite Barn Owls consuming many rats. Failed biocontrol attempts are worsened when the species introduced becomes problematic for native species or human health and safety (Pitt and Witmer 2007). For example, in contemporary Hawai'i, the Barn Owl and mongoose are predators of some native birds (Funasaki et al 1988, Hays andConant 2007;F.…”

Section: Biological Controlmentioning

confidence: 99%

Biology and Impacts of Pacific Island Invasive Species. 11.Rattus rattus,the Black Rat (Rodentia: Muridae)

et al. 2014

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Section: Biological Controlmentioning

confidence: 99%

Biology and Impacts of Pacific Island Invasive Species. 11.Rattus rattus,the Black Rat (Rodentia: Muridae)

et al. 2014

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“…Because of their arboreal nature, roof rats can prey on adult birds, nestlings, and eggs. Furthermore, they are recognized worldwide as the likely cause of rare bird extinctions in many island areas, including Hawaii (Munro 1945;Atkinson 1977;Pitt and Witmer 2007). Roof rats are well-known predators of seabirds, especially those that are ground-and burrownesting (Jones et al 2008) and especially small-egged species.…”

Section: Biology Ecology and Damage Of Some Invasive Rodentsmentioning

confidence: 99%

“…Previous research documented the extensive effects of rat damage on sugarcane, but sugarcane production has largely been replaced by diversi ed agriculture in Hawaii (Pitt and Witmer 2007). Rat damage has now shifted to high-value seed crops (corn, soybean), tropical fruits, and native plants.…”

Section: Biology Ecology and Damage Of Some Invasive Rodentsmentioning

confidence: 99%

Wild Pigs

Mayer¹,

Beasley²

2017

Ecology and Management of Terrestrial Vertebrate Invasive Species in the United States

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“…Invasive predators typically have effects on native prey that are more severe than those of native predators (Salo et al 2007) and can cause substantial declines in populations of native species (Pitt & Witmer 2007). These predators often have generalized diets and, in extreme cases, can drive native species to local or global extinction (Clavero & García-Berthou 2005).…”

Section: Introductionmentioning

confidence: 99%

Preferences of invasive lionfish and native grouper between congeneric prey fishes

Kindinger¹,

Anderson²

2016

Mar. Ecol. Prog. Ser.

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To gain insight about how an invasive predator may influence native prey, we performed a series of experiments in aquaria to characterize and compare the prey preferences of the invasive red lionfish Pterois volitans and an ecologically similar native mesopredator, the graysby grouper Cephalopholis cruentata. Preference for native congeneric fishes, the fairy basslet Gramma loreto and blackcap basslet G. melacara, were tested. We observed behavior of predators in response to 2 individual prey consisting of cross-factored combinations of species (fairy and blackcap basslets) and size (small and large). Upon initial exposure to prey, lionfish first hunted fairy basslet and graysby first hunted blackcap basslet, with both predators initially preferring large over small fish. Overall behavior (quantified from the entire duration of observation) indicated both predators lacked a preference between basslet species based on total number of strikes and hunting time. Despite essentially identical size ranges of predators studied, graysby overall preferred large basslet across all graysby sizes, whereas the overall preference of lionfish between prey size varied with lionfish size. Importantly, the initial preferences of predators were likely least affected by the unnatural setting in aquaria. By preferentially consuming the lesspreferred prey species of native graysby or by increasing predation on larger basslets, invasive lionfish may enhance coexistence between basslet species or among basslet sizes within local populations structured according to a size hierarchy. Alternatively, increased consumption of basslets may deplete local basslet populations, especially if lionfish exhibit prey switching behavior.

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Invasive Predators: a synthesis of the past, present, and future

Cited by 23 publications

References 72 publications

Biology and Impacts of Pacific Island Invasive Species. 11.Rattus rattus,the Black Rat (Rodentia: Muridae)

Biology and Impacts of Pacific Island Invasive Species. 11.Rattus rattus,the Black Rat (Rodentia: Muridae)

Wild Pigs

Preferences of invasive lionfish and native grouper between congeneric prey fishes

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