Neglected taxonomy and continuing extinctions of tuatara (Sphenodon)

Daugherty, Charles H.; Cree, Alison; Hay, Jennifer M.; Thompson, Michael B.

doi:10.1038/347177a0

Cited by 376 publications

(191 citation statements)

References 4 publications

Supporting

Mentioning

180

Contrasting

Unclassified

Order By: Relevance

“…Genus Sphenodon Gray Two extant species of tuatara (S. punctatus and S. guntheri) are presently recognised (Daugherty et al 1990). I compared four skeletons representing a growth series of S. guntheri to several skeletons of S. punctatus, and found no differences attributable to specific variability.…”

Section: Class Reptilia Order Sphenodonta Family Sphenodontidaementioning

confidence: 99%

The Quaternary fossil avifauna of Southland, South Island, New Zealand

Worthy

1998

Journal of the Royal Society of New Zealand

View full text Add to dashboard Cite

Section: Class Reptilia Order Sphenodonta Family Sphenodontidaementioning

confidence: 99%

The Quaternary fossil avifauna of Southland, South Island, New Zealand

Worthy

1998

Journal of the Royal Society of New Zealand

View full text Add to dashboard Cite

“…The principal applications of these molecular markers for the conservation of our crayfish heritage, have concentrated upon the white-clawed crayfish, Austropotamobius pallipes complex, where classical taxonomic methods are often inadequate to differentiate groups along phylogenetic lines and also to provide a precise delimitation of closely related species or intraspecific taxa. Several studies have shown that an inadequate taxonomy could have dramatic consequences for management schemes, as for example reported for the tuatara lizards of New Zealand (DAUGHERTY et al, 1990).…”

Section: Introductionmentioning

confidence: 99%

Roundtable Session 3: Phylogeny of European Crayfish – Improving the Taxonomy of European Crayfish for a Better Conservation

Schulz

Grandjean

2005

Bull. Fr. Pêche Piscic.

View full text Add to dashboard Cite

This paper summarizes the various themes discussed in a roundtable session on the uses and usefulness of genetics for conservation of our European crayfish heritage. After reviewing the importance of characterizing the different genetic stocks (ESU: Evolutionary Significant Units) of a species, where morphological criteria used for taxonomy, are utilizable with caution, the present state of knowledge of the phylogeny of European species was determined, in particular for the genus Austropotamobius which occupies most studies. There was a lively debate on the elevation to species rank of A. italicus. The status of knowledge of the taxonomy of Astacus astacus has been presented. Finally, given a major increase in works describing the genetic variability of natural populations of European crayfish, it was evident that an up to date inventory of the different research teams in this field should be developed, for several reasons -(i) to describe these teams and their managers (thus facilitating contact) (ii) to list the species studied and the markers used (iii) to give some recommendations on standardizing the use of certain markers or genes so as to allow comparison between the results collected by the various teams, and to apply them on a broader geographic scale.Key-words: conservation genetics, taxonomy, Austropotamobius pallipes, Astacus astacus. -830 -Après avoir rappelé l'importance de caractériser les différents stocks génétiques d'une espèce (UES, Unités Evolutives Significatives), en particulier, quand les critères morphologiques, utilisés en taxonomie, sont prendre avec prudence, un état des connaissances sur la phylogénie des espèces européennes a été effectué, et ce, plus particulièrement, chez le genre Austropotamobius qui draine la majeure partie des travaux scientifiques. Le débat sur l'élévation au rang d'espèce d'A. italicus a été très animé. L'état des connaissances sur la taxonomie d'Astacus astacus a été présenté. Étant donné, l'augmentation importante des travaux décrivant la variabilité au sein des populations naturelles des écrevisses européennes, Il devenait très important de réaliser un inventaire actualisé des différentes équipes de recherche dans ce domaine pour plusieurs raisons:(1) Faire connaître ces équipes (faciliter les contacts).(2) Recenser les espèces étudiées et les marqueurs utilisés.(3) Proposer des recommandations pour uniformiser l'utilisation de certains marqueurs ou gènes afin de permettre des comparaisons entre les résultats collectés par les différentes équipes de recherche et de les exploiter sur une échelle géographique plus large.

show abstract

“…Apparently conflicting data sets on the phylogenetic position of S. guntheri (Figure 2) require rooted trees to determine if the differences in the genetic phylogenies are real or merely branch length differences to North Brother Island tuatara . Allozymes clearly differentiate S. guntheri from all other populations (Daugherty et al, 1990), whereas mitochondrial DNA (mtDNA) sequence groups S. guntheri among other nearby islands in Cook Strait . Both data sets recognise a northern-southern (Cook Strait) islands split (Figure 2).…”

Section: Introductionmentioning

confidence: 99%

“…Late Pleistocene tuatara fossil remains are found throughout the two main islands of current day New Zealand (Worthy and Holdaway, 2002, pp 459-461), but human-introduced predators and habitat modification reduced the extant populations to B30 offshore islands in 12 island groups (Figure 1). Currently, two species, Sphenodon punctatus and Sphenodon guntheri, are recognised (Daugherty et al, 1990). The latter is known naturally only from North Brother Island.…”

Section: Introductionmentioning

confidence: 99%