Time filter

Source Type

Auckland, New Zealand

Murray B.G.,University of Auckland | De Lange P.J.,Ecosystems Unit
New Zealand Journal of Botany | Year: 2013

Chromosome numbers are reported for 112 endemic or indigenous vascular plants from New Zealand. Ninety one of these are new and the remainder provide confirmation of previous counts. Many of the counts fill gaps in the available record of chromosome numbers of New Zealand plants and a summary table provides a list of the genera where numbers remain to be determined. With the publication of these numbers, c. 85% of the indigenous vascular flora of New Zealand now has a documented chromosome number. Copyright © 2013 The Royal Society of New Zealand. Source

Powlesland R.G.,Chatham Islands Taiko Trust | Bell M.,Chatham Islands Taiko Trust | Tuanui E.A.,Chatham Islands Taiko Trust | Tuanui B.M.,Chatham Islands Taiko Trust | Monks J.M.,Ecosystems Unit
Notornis | Year: 2013

The Chatham Islands tomtit (Petroica macrocephala chathamensis) is a small forest passerine with a threat ranking of nationally endangered.It is restricted to 2 islands of the Chathams group that are free of introduced predators (Rangatira and Mangere Islands), and 1 with mice (Mus musculus) and feral cats (Felis catus) (Pitt Island).We carried out a translocation of 35 juvenile tomtits from Rangatira (10 male, 10 female) and Pitt Islands (6 male, 9 female) to Awatotara Valley, Chatham Island in January 2011.Mean weight at capture of Pitt Island tomtits was lighter than that of the Rangatira Island tomtits.Tomtits were held captive in aviaries for 1-3 days on the source islands and 2-4 days at the release site.Weight loss of tomtits in captivity prior to transfer averaged 1.8% of body mass per day held and was more pronounced in birds sourced from Rangatira than Pitt Island.Two birds died during the first night after transfer, but the other 33 were released in apparently good health.Eighteen of the released birds were seen at least once, and 11 regularly until 28 March (at least 55 days after release).During the following 12 days, all 11 of these tomtits disappeared.We discuss possible reasons for their disappearance, and aspects of the translocation that may be useful for future translocations of tomtits and other species with a similar ecology.© The Ornithological Society of New Zealand, Inc. Source

Perrie L.R.,Museum of New Zealand Te Papa Tongarewa | Shepherd L.D.,Museum of New Zealand Te Papa Tongarewa | Shepherd L.D.,Victoria University of Wellington | De Lange P.J.,Ecosystems Unit | And 4 more authors.
New Zealand Journal of Botany | Year: 2013

Hymenophyllum pluviatile is described as a new and uncommon fern endemic to New Zealand. Phylogenetic analyses of chloroplast DNA sequences show that H. pluviatile is distinct from the other New Zealand species in Hymenophyllum subgenus Globosa. Hymenophyllum pluviatile can be distinguished from its closest New Zealand relatives, Hymenophyllum australe and Hymenophyllum flexuosum, by a suite of morphological and ecological characters. It is mostly confined to the west coasts of the North and South Islands, in areas of high rainfall. Known populations are scattered and small, and more surveys are required to set an informed conservation ranking. Additionally, our morphological and molecular analyses indicate that New Zealand plants previously sometimes referred to Hymenophyllum atrovirens are indistinguishable from Australian material of H. australe. We consequently accept the following members of subgenus Globosa in New Zealand: H. australe, H. demissum, H. flexuosum and H. pluviatile. © 2013 © 2013 Museum of New Zealand Te Papa Tongarewa. Source

De Lange P.J.,Ecosystems Unit
New Zealand Journal of Botany | Year: 2012

Three new combinations are made in Piper for taxa previously treated as Macropiper and overlooked in recent literature merging these genera. The new combinations are Piper excelsum subsp. delangei (R.O.Gardner) de Lange for Macropiper excelsum subsp. peltatum f. delangei R.O.Gardner, Piper excelsum subsp. peltatum (R.O.Gardner) de Lange for Macropiper excelsum subsp. peltatum R.O.Gardner and Piper excelsum subsp. psittacorum (Endl.) de Lange for Macropiper excelsum subsp. psittacorum (Endl.) Sykes. © 2012 The Royal Society of New Zealand. Source

Lange P.D.,Ecosystems Unit | Galloway D.,Landcare Research | Blanchon D.,Unitec Institute of Technology | Knight A.,University of Otago | And 3 more authors.
New Zealand Journal of Botany | Year: 2012

The first listing of the conservation status of lichens indigenous to the New Zealand Botanical Region (excluding Macquarie Island) is presented. The list comprises 1799 formally accepted taxa placed in the following categories: 'Threatened', 11 taxa (comprising 4 taxa Nationally Critical, 4 Nationally Endangered, 3 Nationally Vulnerable); 'At Risk', 176 taxa (comprising 173 Naturally Uncommon and 4 Declining taxa); and 975 'Data Deficient' taxa. A further 636 taxa were considered 'Not Threatened'. A further five lichens are listed as 'Taxonomically Indeterminate', being lichens which may warrant further conservation attention once their taxonomic status is clarified. A concordance of lichen names is provided. A brief analysis of the patterns of threat and rarity exhibited by New Zealand lichens listed is also presented. © 2012 The Royal Society of New Zealand. Source

Discover hidden collaborations