نتایج جستجو برای: araucaria excelsa

تعداد نتایج: 1507  

Journal: :Neotropical entomology 2009
Vera R Ribeiro-Troian Ronei Baldissera Sandra M Hartz

The purpose of this study was to investigate the effects of different landscape structures on the understory Collembola community. Four different forest physiognomies were compared: Pinus spp. plantation, Eucalyptus spp. plantation, Araucaria angustifolia plantation, and a remaining native Araucaria forest. Three areas containing two sampling units (25 mx2 m each) were selected in each forest p...

2017
Riikka Linnakoski Kristian M. Forbes Michael J. Wingfield Pertti Pulkkinen Fred O. Asiegbu

Climate changes, exemplified by increased temperatures and CO2 concentration, pose a global threat to forest health. Of particular concern are pests and pathogens, with a warming climate altering their distributions and evolutionary capacity, while impairing the ability of some plants to respond to infections. Progress in understanding and mitigating such effects is currently hindered by a lack...

2015
Walter Oberhuber Albin Hammerle Werner Kofler

We evaluated the size effect on stem water status and growth in Norway spruce (Picea abies (L.) Karst.) occurring at the edge of its natural range in a dry inner Alpine environment (750 m asl, Tyrol, Austria). Intra-annual dynamics of stem water deficit (ΔW), maximum daily shrinkage (MDS), and radial growth (RG) were compared among saplings (stem diameter/height: 2.2 cm/93 cm; n = 7) and mature...

2004
Ian A.E. Atkinson

Major trends in forest successions following fires are identified for northern offshore islands of New Zealand. Data are from the author’s observations over several decades, and published descriptions. Islands studied extend from the Cavalli group in the north to the Aldermen group in the south. Their original vegetation was largely destroyed by human-induced fires. Successions that followed we...

Journal: :Zeitschrift fur Naturforschung. C, Journal of biosciences 2009
Essam Abdel-Sattar Azza R Abdel Monem Shahira M Ezzat Ali M El-Halawany Samar M Mouneir

Three labdane diterpenes, namely lambda-8(17),14-diene, 13-epicupressic acid, and 13-Oacetyl-13-epicupressic acid, were isolated from the resin collected from stem exudates of Araucaria heterophylla Salisb. (Araucariaceae). The isolated compounds were identified using different spectroscopic methods (1H NMR, 13C NMR, HMQC, HMBC and COSY). The resin extract showed antiulcerogenic activity agains...

2014
Sneh Verma Tandra Mohanta

Araucaria cookii, Bauhinia blakeana and Brassaia actinophylla are ornamental plants. The presence of various phytochemicals and pharmacologically important compounds in these plants can be exploited for their medicinal use. But there are no reports on the phytochemical and pharmacological evaluation of these plants and this study aims at investigating these. The plant extracts were prepared in ...

Journal: :Brazilian journal of biology = Revista brasleira de biologia 2008
M L T Buschini N A Borba A D Brescovit

This study was carried out in the Parque Municipal das Araucárias, in the municipality of Guarapuava, southern Brazil. A total of 449 T. lactitarse nests were collected using trap-nests of different diameters. Fifty three species of spiders belonging to 7 families were captured by T. lactitarse. Araneidae was the most captured family and has been strongly represented by the genus Eustala. Throu...

Journal: :Proceedings. Biological sciences 2008
Jürgen Hummel Carole T Gee Karl-Heinz Südekum P Martin Sander Gunther Nogge Marcus Clauss

Sauropod dinosaurs, the dominant herbivores throughout the Jurassic, challenge general rules of large vertebrate herbivory. With body weights surpassing those of any other megaherbivore, they relied almost exclusively on pre-angiosperm plants such as gymnosperms, ferns and fern allies as food sources, plant groups that are generally believed to be of very low nutritional quality. However, the n...

Journal: :Acta Scientiarum Polonorum-hortorum Cultus 2023

The present study examines the fatty acid composition, phytochemicals content and antioxidant potential of Smilax excelsa L. shoots, which grows spontaneously is consumed as food in rural areas Düzce (Türkiye) province, was investigated. DPPH, ABTS OH radical scavenging tests were utilized to put forth antiradical properties extracts this plant. In addition, metal chelating plant also evaluated...

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