An Investigation into Tetrodotoxin (TTX) Levels Associated with the Red Dorsal Spots in Eastern Newt (Notophthalmus viridescens) Efts and Adults
نویسندگان
چکیده
منابع مشابه
The Eastern red-spotted newt Notophthalmus viridescens uses
the geomagnetic field for two forms of spatial orientation: (1) shoreward orientation, which utilizes only directional (‘compass’) information (Phillips, 1986a,b; Phillips and Borland, 1992a,b; Deutschlander et al., 1999a,b, 2000; Phillips et al., 2001) and (2) map-based homing orientation (‘true navigation’), which utilizes both compass and geographic position (‘map’) information (Phillips, 19...
متن کاملFerromagnetic material in the eastern red-spotted newt notophthalmus viridescens
Behavioral results obtained from the eastern red-spotted newt (Notophthalmus viridescens) led to the suggestion of a hybrid homing system involving inputs from both a light-dependent and a non-light-dependent mechanism. To evaluate the possible role of a receptor based on biogenic magnetite in this animal, we performed magnetometry experiments on a set of newts previously used in behavioral ass...
متن کاملThe “False Breeding Season” of the Eastern Newt, Notophthalmus viridescens
The terrestrial red eft stage is so different from the body form of the aquatic adult of the eastern newt that the two were considered separate species for nearly 60 years. Some populations lack the eft stage whereas in other populations the adults are aquatic only during the breeding season. In populations in which the adults are permanently aquatic or migrate to breeding ponds in fall, an aut...
متن کاملLaboratory studies of homing orientation in the eastern red-spotted newt, Notophthalmus viridescens.
The orientation behaviour of adult male eastern red-spotted newts (Notophthalmus viridescens) was studied in laboratory tests. Newts were collected from ponds located 10-30 km from the laboratory, and housed in water-filled, all-glass aquaria located in a greenhouse or outdoors adjacent to the laboratory building. The aquaria were aligned on the magnetic north-south axis. Newts were tested in a...
متن کاملVariability of tetrodotoxin and of its analogues in the red-spotted newt, Notophthalmus viridescens (Amphibia: Urodela: Salamandridae).
Efts and adult specimens (n = 142) of the red-spotted newt Notophthalmus viridescens from various locations in Canada and USA were analyzed for the presence of tetrodotoxin (TTX) and of its analogues 6-epitetrodotoxin and 11-oxotetrodotoxin. Considerable individual variations in toxin levels were found within and among populations from New Hampshire, New York, Pennsylvania, and Virginia ranging...
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ژورنال
عنوان ژورنال: Journal of Toxicology
سال: 2018
ISSN: 1687-8191,1687-8205
DOI: 10.1155/2018/9196865