| anatomical features of leiopelma embryos and larvae: implications for anuran evolution. | a controversial issue in anuran systematics is the relationship of leiopelma to other anurans because recent phylogenetic constructions imply different relationships among the basal frogs. of particular evolutionary interest is whether early development of leiopelma resembles an ancestral salamander-like larva, an anuran tadpole, or neither. in the 1950s, neville g. stephenson hypothesized that direct development is the primary mode of development in amphibians, based on the fact that leiopelma ... | 2003 | 12635108 |
| elimination of the amphibian chytrid fungus batrachochytrium dendrobatidis by archey's frog leiopelma archeyi. | archey's frog leiopelma archeyi is a critically endangered new zealand endemic species. the discovery of the emerging infectious disease, chytridiomycosis, in wild populations of this frog raised concern that this disease may drive the species to extinction. twelve wild-caught archey's frogs naturally infected with the amphibian chytrid fungus batrachochytrium dendrobatidis were monitored in captivity by observing clinical signs, measuring weight gain, and performing repeated pcr tests. eight fr ... | 2009 | 19419002 |
| the complete mitochondrial genome of the relict frog leiopelma archeyi: insights into the root of the frog tree of life. | determining the root of the anuran tree of life is still a contentious and open question in frog systematics. two genera with disjunct distributions have been traditionally considered the most basal among extant frogs: leiopelma, which is endemic to new zealand, and ascaphus, which lives in north america. however, their specific phylogenetic position is rather elusive because each genus shows many autapomorphies, and together they retain many symplesiomorphic characters. therefore, several alter ... | 2010 | 20958226 |
| experimental infection of self-cured leiopelma archeyi with the amphibian chytrid batrachochytrium dendrobatidis. | the susceptibility of archey's frog leiopelma archeyi to batrachochytrium dendrobatidis (bd) is unknown, although one large population is thought to have declined sharply due to chytridiomycosis. as primary infection experiments were not permitted in this endangered new zealand species, 6 wild-caught l. archeyi that naturally cleared infections with bd while in captivity were exposed again to bd to assess their immunity. these frogs were from an infected population at whareorino, which has no kn ... | 2010 | 21268977 |
| nematode and ciliate nasal infection in captive archey's frogs (leiopelma archeyi). | archey's frogs (leiopelma archeyi) are first on the list of evolutionarily distinct and globally endangered (edge) amphibians. captive breeding is an important strategy for protection of the species, but programs are hampered by a lack of information on diseases present in wild and captive populations. two novel nematodes (koerneria sp. and rhabditis sp.) were found separately in four captive archey's frogs showing clinical signs of hemorrhagic purulent nasal discharge and weight loss. one of th ... | 2011 | 22950321 |
| baseline cutaneous bacteria of free-living new zealand native frogs (leiopelma archeyi and leiopelma hochstetteri) and implications for their role in defense against the amphibian chytrid (batrachochytrium dendrobatidis). | abstract knowledge of baseline cutaneous bacterial microbiota may be useful in interpreting diagnostic cultures from captive sick frogs and as part of quarantine or pretranslocation disease screening. bacteria may also be an important part of innate immunity against chytridiomycosis, a fungal skin disease caused by batrachochytrium dendrobatidis (bd). in february 2009, 92 distinct bacterial isolates from the ventral skin of 64 apparently healthy leiopelma archeyi and leiopelma hochstetteri nativ ... | 2014 | 25121401 |
| adenomatous hyperplasia of the mucous glands in captive archey's frogs (leiopelma archeyi). | to describe the gross and light microscopic characteristics of skin lesions observed on the ventral skin of captive archey's frogs (leiopelma archeyi) between 2000 and 2012, and to investigate their occurrence, possible aetiology and association with survival. | 2017 | 27855564 |
| fluorosis as a probable factor in metabolic bone disease in captive new zealand native frogs (leiopelma species). | this report describes the investigations into the cause and treatment of metabolic bone disease (mbd) in captive native new zealand frogs (leiopelma spp.) and the role of fluoride in the disease. mbd was diagnosed in leiopelma archeyi and leiopelma hochstetteri in 2008 at three institutions: auckland zoo, hamilton zoo, and the university of otago. most of these frogs had originally been held at the university of canterbury for several years (2000-2004) but some were collected directly from the w ... | 2012 | 23082519 |
| using molecular diet analysis to inform invasive species management: a case study of introduced rats consuming endemic new zealand frogs. | the decline of amphibians has been of international concern for more than two decades, and the global spread of introduced fauna is a major factor in this decline. conservation management decisions to implement control of introduced fauna are often based on diet studies. one of the most common metrics to report in diet studies is frequency of occurrence (fo), but this can be difficult to interpret, as it does not include a temporal perspective. here, we examine the potential for fo data derived ... | 2019 | 31110660 |
| corrigendum: re: adenomatous hyperplasia of the mucous glands in captive archey's frogs (leiopelma archeyi). | | 2017 | 28274176 |