There was a paper published recently about the effects of disposable gloves on tadpoles.
http://www.parcplace.org/Cashins_etal_2008_glovesandtads .pdf
Many people/institutions have been using dispo gloves to handle amphibians, believing that it's safer because no germs/oils/lotions are transmitted from human skin to the skin of the amphib. However, it appears that all glove types (latex, nitrile, vinyl) have some level of toxicity, at least to tadpoles. Of the options, well-rinsed vinyl gloves appear to be the only acceptable option.
http://www.parcplace.org/Cashins_etal_2008_glovesandtads .pdf
Many people/institutions have been using dispo gloves to handle amphibians, believing that it's safer because no germs/oils/lotions are transmitted from human skin to the skin of the amphib. However, it appears that all glove types (latex, nitrile, vinyl) have some level of toxicity, at least to tadpoles. Of the options, well-rinsed vinyl gloves appear to be the only acceptable option.