Results 31 to 40 of about 42,029 (246)

Extraction, Purification, and Characterization of Polysaccharides of Araucaria heterophylla L and Prosopis chilensis L and Utilization of Polysaccharides in Nanocarrier Synthesis

open access: yesInternational Journal of Nanomedicine, 2020
Background Plant gums consist of polysaccharides which can be used in the preparation of nanocarriers and provide a wide application in pharmaceutical applications including as drug delivery agents and the matrices for drug release. The objectives of the
A. Samrot   +7 more
semanticscholar   +1 more source

Genetic diversity and biogeographic determinants of population structure in Araucaria angustifolia (Bert.) O. Ktze

open access: yesConservation Genetics, 2020
Araucaria (Araucaria angustifolia (Bert.) O. Ktze) is a primarily dioecious species threatened with extinction that plays an important social and economic role especially in the southern region of Brazil.
Valderês Aparecida de Sousa   +5 more
semanticscholar   +1 more source

Check list of ground-dwelling ant diversity (Hymenoptera: Formicidae) of the Iguazú National Park with a comparison at regional scale [PDF]

open access: yes, 2015
We describe the ant fauna of Iguazú National Park (INP), a region of high biodiversity andendemism in northeastern Argentina that includes the southernmost protected area ofthe Atlantic Forest (AF).
Achury, R.   +6 more
core   +2 more sources

Eocene Araucaria Sect. Eutacta from Patagonia and floristic turnover during the initial isolation of South America.

open access: yesAmerican-Eurasian journal of botany, 2020
PREMISE Eocene floras of Patagonia document biotic response to the final separation of Gondwana. The conifer genus Araucaria, distributed worldwide during the Mesozoic, has a disjunct extant distribution between South America and Australasia.
G. Rossetto-Harris   +3 more
semanticscholar   +1 more source

Interaction of land management and araucaria trees in the maintenance of landscape diversity in the highlands of southern Brazil. [PDF]

open access: yesPLoS ONE, 2018
In the southern Brazilian highlands, pre-Columbian societies created domesticated landscapes through the use and management of forests, including nurse Araucaria angustifolia trees, a common conifer in these regions.
Rafael Barbizan Sühs   +2 more
doaj   +1 more source

Earthworm populations sampled using collection methods in atlantic forests with Araucaria angustifolia Populações de minhocas amostradas usando métodos de coleta em floresta atlântica com Araucaria angustifolia

open access: yesScientia Agricola, 2007
Araucaria angustifolia, also known as the Paraná Pine is an endangered tree species in Brazil and little is known of the diversity of soil invertebrates inhabiting these forests.
Dilmar Baretta   +3 more
doaj   +1 more source

First record of Vitalius longisternalis Bertani, 2001 (Araneae, Theraphosidae) in Argentina and notes on its natural history in Misiones province [PDF]

open access: yesCheck List, 2015
This is the first record for the tarantula Vitalius longisternalis Bertani, 2001 in Parana and Araucaria Forests, Misiones province, northeastern Argentina. Specimens were found at Iguazú National Park and Urugua-í Wildlife Reserve.
Nelson Ferretti   +3 more
doaj   +3 more sources

The Araucaria Project. An Accurate Distance to the Local Group Galaxy NGC 6822 from Near-Infrared Photometry of Cepheid Variables [PDF]

open access: yes, 2006
We have measured near-infrared magnitudes in the J and K bands for 56 Cepheid variables in the Local Group galaxy NGC 6822 with well-determined periods and optical light curves in the V and I bands.
Aaron Romanowsky   +9 more
core   +4 more sources

Seed removal of Araucaria angustifolia by native and invasive mammals in protected areas of Atlantic Forest

open access: yes, 2021
Araucaria Forest is one of the most threatened tropical forests in the world. Wild pig (Sus scrofa) are invasive pig that is expanding through these forests and seed removing that would be available to native fauna.
Clarissa Rosa   +2 more
semanticscholar   +1 more source

Evolutionary diversification of new Caledonian Araucaria.

open access: yesPLoS ONE, 2014
New Caledonia is a global biodiversity hotspot. Hypotheses for its biotic richness suggest either that the island is a 'museum' for an old Gondwana biota or alternatively it has developed following relatively recent long distance dispersal and in situ ...
Mai Lan Kranitz   +11 more
doaj   +1 more source

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