ChemInform Abstract: Waihoensene. A New Laurenene-Related Diterpene from Podocarpus totara var waihoensis.

ChemInform ◽  
2010 ◽  
Vol 28 (45) ◽  
pp. no-no
Author(s):  
D. B. CLARKE ◽  
S. F. R. HINKLEY ◽  
R. T. WEAVERS
Keyword(s):  
1989 ◽  
Vol 16 (1) ◽  
pp. 63 ◽  
Author(s):  
PE Cowan

Fifty-five T. vulpecula were radio-tracked to 182 den sites on 1987 occasions in the podocarp and mixed hardwood forest of the Orongorongo Valley, near Wellington. Most dens (92%) were above ground in trees, particularly in large trees with many clumps of perching epiphytes; the remainder were under fallen logs or trees or in dense tangles of gorse. Melicytus ramiflorus was the most commonly used living tree species. Others used commonly were Knightia excelsa, Elaeocarpus dentatus, Laurelia novaezealandiae [L. novae-zelandiae] and Podocarpus totara. Use was not dictated solely by availability. Trees without perching epiphytes were hardly ever used. Each possum used 11-15 den trees/yr, most only occasionally; the 3 most commonly used den trees accounted for 60-75% of observations. Males used more dens than females, and the sexes differed in their frequencies of the use of the various tree species, though not in the species used. Possums changed dens frequently, on average 2 nights in 3. Den sharing was uncommon, but many dens, including those on the ground, were used sequentially by several (up to 9) different possums. Dens on the ground were used mostly in autumn and winter, by possums in poor condition or after prolonged heavy rain. The implications of den site choice and use by possums are discussed, particularly in relation to den sites as a limiting resource, and the role of dens in the transmission of bovine tuberculosis. There was about a 50% chance that a den would be occupied by different possums within the probable survival period of deposited tuberculosis bacilli.


2000 ◽  
Vol 35 (4) ◽  
pp. 474-477 ◽  
Author(s):  
Sung-Eun Lee ◽  
Eun-Kee Park ◽  
Jeong-Gyu Kim

Totarol, a diterpenoid phenol isolated from Podocarpus totara (D. Don ex Lambert) root bark, was found to be active against second- and fourth-instar Culex pipiens Coquillett with the 24 h LC50 values of 0.25 and 0.37 μg/mL, respectively. The mosquito larvicidal activity against C. pipiens increased when bioassays were extended to 48 h. Structural elucidation of totarol was by means of 1H-NMR, 13C-NMR, and GC-MS analysis.


2019 ◽  
Vol 25 (1) ◽  
pp. 108-129
Author(s):  
Wiremu T. Green (Ngāti Porou, Ngāti Wairere)

In this article, the author explores previously lost techniques and practices associated with reproducing a New Zealand Māori wood carving of a poupou (panel) that was collected by Joseph Banks in October 1769 from a partly-constructed house on Pourewa Island, Tolaga Bay (Ūawa), North Island. The original poupou, a rare Māori artefact that pre-dates European influence, is curated today in the University Museum, Tübingen. A conference in Oslo, Norway, in 2014, provided the author, a tohunga whakairo (master carver), with the opportunity to demonstrate the use of Māori pre-steel tools, notably pounamu (greenstone) and argillite toki (adzes), greenstone and toroa whao (albatross bone chisels), and hardwood tā (carving mallets). The unique, historically inspired and practice-led empirical research undertaken in carving the poupou has helped to recover previously lost indigenous wood-carving knowledge. The replica poupou, carved in totara ( Podocarpus totara) and coated in kokowai (ochre), was subsequently completed at, and donated to, the Captain Cook Birthplace Museum in Middlesbrough, UK. The empirical approach to this research required detailed analysis as well as experimental archaeology and ethnography. The carving of the poupou honours the legacy of one of the most famed Māori carving centres and traditional higher schools of learning of pre-European times, namely Te Rāwheoro.


2003 ◽  
Vol 9 (4) ◽  
pp. 278 ◽  
Author(s):  
C. J. Miller ◽  
D. A. Norton ◽  
T. K. Miller

Due to extensive clearance, podocarp forests on alluvial floodplains are under-represented, relative to their original extent, in the New Zealand agricultural landscape, and remnants are a priority for protection. This study uses a stand dynamics approach to 1) determine whether Kahikatea Dacrycarpus dacrydioides and Totara-Matai Podocarpus totara-Prumnopitys taxifolia forest patches in Westland, New Zealand, are remnants of pre-European forest, and 2) predict whether podocarp species will remain dominant in these patches. The majority of patches were initiated following European land clearance, with few being remnants of the original forest. Recruitment of podocarp seedlings and saplings into the canopy is no longer occurring in these stands, and over time they are likely to become dominated by angiosperm species. Within patch management may be an option to maintain podocarp dominance, while providing an economic return for landholders. While the forest types are representative of the original forest, the forest communities are not, with a lower � diversity than in intact Kahikatea forest in the region. Planning for and managing patches as a shifting mosaic in the landscape is likely to be the most successful approach for maintaining their conservation value in the region.


1997 ◽  
Vol 38 (24) ◽  
pp. 4297-4300 ◽  
Author(s):  
Don B. Clarke ◽  
Simon F.R. Hinkley ◽  
Rex T. Weavers
Keyword(s):  

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