ALTERNATE FOOD-CHAIN TRANSFER OF THE TOXIN LINKED TO AVIAN VACUOLAR MYELINOPATHY AND IMPLICATIONS FOR THE ENDANGERED FLORIDA SNAIL KITE (<i>ROSTRHAMUS SOCIABILIS</i>)

Dodd, Shelley R.; Haynie, Rebecca S.; Williams, Susan M.; Wilde, Susan B.

doi:10.7589/2015-03-061

Cited by 18 publications

(5 citation statements)

References 25 publications

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“…In a laboratory study where researchers fed toxin-laden apple snails to chickens, the birds developed avian vacuolar myelinopathy (AVM). This is a neurodegenerative disease that impacts behavior and has been shown to eventually kill some wild avian species [72].…”

Section: Implications Of P Maculata Range Expansionmentioning

confidence: 99%

Contrasting Patterns of Pomacea maculata Establishment and Dispersal in an Everglades Wetland Unit and a Central Florida Lake

et al. 2019

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The spread of non-native species raises concerns about native species displacement, while other negative effects on native species (e.g., habitat degradation) should also be considered. The highly invasive non-native apple snail Pomacea maculata has raised such concerns as it has become established in a wide range of aquatic systems worldwide. While monitoring native Florida P. paludosa populations in Lake Tohopekaliga (LTOHO) from 2001 to 2009 and in Water Conservation Area 3A (WCA3A, Everglades) from 2006 to 2015, we opportunistically documented the establishment and distribution of P. maculata. We estimated snail densities and recorded egg cluster presence in three study sites (12 total plots, LTOHO) and 137 sites (WCA3). On LTOHO, native snails were absent or at very low densities prior to finding P. maculata. Few snails of either species were found in high-stem-density vegetation of the littoral zone. Pomacea maculata immigration into the littoral zone occurred following managed vegetation removal, and Hydrilla verticillata proliferation in LTOHO likely contributed to the spread of P. maculata. We found both native and non-native apple snail species in many WCA3A sites following P. maculata invasion. We initially found the non-native snail in two sites in southern WCA3A; they were mostly restricted to within three kilometers of initial sites over the next four years. Overall plant community compositions in LTOHO and WCA3A appeared less impacted than expected based on previous reports of P. maculata invasions.

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Section: Implications Of P Maculata Range Expansionmentioning

confidence: 99%

Contrasting Patterns of Pomacea maculata Establishment and Dispersal in an Everglades Wetland Unit and a Central Florida Lake

et al. 2019

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“…hydrillicola feeding trials have confirmed neuropathy and mortality in a wide variety of taxa, including amphibians, reptiles, and fish, as well as secondary disease transfer through the food chain. Thus, the disease is now referred to as vacuolar myelinopathy (VM) (21)(22)(23)(24).…”

mentioning

confidence: 99%

Hunting the eagle killer: A cyanobacterial neurotoxin causes vacuolar myelinopathy

Breinlinger

Phillips

Haram

et al. 2021

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Vacuolar myelinopathy is a fatal neurological disease that was initially discovered during a mysterious mass mortality of bald eagles in Arkansas in the United States. The cause of this wildlife disease has eluded scientists for decades while its occurrence has continued to spread throughout freshwater reservoirs in the southeastern United States. Recent studies have demonstrated that vacuolar myelinopathy is induced by consumption of the epiphytic cyanobacterial species Aetokthonos hydrillicola growing on aquatic vegetation, primarily the invasive Hydrilla verticillata. Here, we describe the identification, biosynthetic gene cluster, and biological activity of aetokthonotoxin, a pentabrominated biindole alkaloid that is produced by the cyanobacterium A. hydrillicola. We identify this cyanobacterial neurotoxin as the causal agent of vacuolar myelinopathy and discuss environmental factors—especially bromide availability—that promote toxin production.

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“…The cyanobacteria Aetokthonos hydrillicola is frequently associated with dense beds of Hydrilla verticillata and other alien macrophytes, mostly in man-made water bodies. This cyanobacterium exerts neurotoxic activity on a range of aquatic vertebrates, with mortality observed in many different bird species (e.g., Dodd et al, 2016), including an apex predator, the bald eagle.…”

Section: (I) Biodiversity and Conservationmentioning

confidence: 99%

On the move: New insights on the ecology and management of native and alien macrophytes

et al. 2020

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ALTERNATE FOOD-CHAIN TRANSFER OF THE TOXIN LINKED TO AVIAN VACUOLAR MYELINOPATHY AND IMPLICATIONS FOR THE ENDANGERED FLORIDA SNAIL KITE (ROSTRHAMUS SOCIABILIS)

Cited by 18 publications

References 25 publications

Contrasting Patterns of Pomacea maculata Establishment and Dispersal in an Everglades Wetland Unit and a Central Florida Lake

Contrasting Patterns of Pomacea maculata Establishment and Dispersal in an Everglades Wetland Unit and a Central Florida Lake

Hunting the eagle killer: A cyanobacterial neurotoxin causes vacuolar myelinopathy

On the move: New insights on the ecology and management of native and alien macrophytes

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