Results 31 to 40 of about 39,786 (210)

Anthropogenic Causes of Peatland Species Vanishing in the Glinno Ługi Area [PDF]

open access: yes, 2011
The paper presents information about the occurrence and state of preservation of valuable peat-bog species as well as about the threats facing them. The anthropopressure-related changes which occurred in the habitat of the Glinno Ługi peatland and their ...
Komperda, Agata, Woziwoda, Beata
core   +2 more sources

Sensitivity of the grassland-forest ecotone in East African open woodland savannah to historical rainfall variation [PDF]

open access: yes, 2014
. Fossil pollen records provide key insight into the sensitivity of terrestrial ecosystems to climate change at longer time scales. However, tracing vegetation response to relatively modest historical climate fluctuations is often complicated by the ...
Gelorini, Vanessa   +2 more
core   +1 more source

Comparing the Effect of Herbal Mouthwash Containing Hydroalcoholic Extracts of Cyperus rotundus L. and Thymus vulgaris L. and Chlorhexidine Mouthwash on Common Periodontal Pathogens [PDF]

open access: yesJournal of Mazandaran University of Medical Sciences, 2023
Background and purpose: Gingivitis is an inflammatory disease of the gums caused by accumulation of dental plaque. It can become a chronic periodontal disease if plaque spread below the gum line.
Ali Pezeshkian   +3 more
doaj  

Replicability of data collected for empirical estimation of relative pollen productivity [PDF]

open access: yes, 2016
The effects of repeated survey and fieldwork timing on data derived from a recently proposed standard field methodology for empirical estimation of relative pollen productivity (RPP) have been tested.
Bunting, M. Jane   +2 more
core   +2 more sources

Late Holocene palynology and palaeovegetation of tephra-bearing mires at Papamoa and Waihi Beach, western Bay of Plenty, North Island, New Zealand. [PDF]

open access: yes, 1995
The vegetation history of two mires associated with Holocene dunes near the western Bay of Plenty coast, North Island, New Zealand, is deduced from pollen analysis of two cores.
Campbell E. O.   +20 more
core   +2 more sources

Rhynchospora dilectissimi-patris (sect. Pauciflorae Kükenth., subsect. Plumoso-setosae Kükenth.), sp. nov., and some notes on its allies.

open access: yesAnales del Jardín Botánico de Madrid, 1997
In the present paper a new species of the genus Rhynchospora (sect. Pauciflorae, subsect. Plumoso- setosae) is described, and R. trichochaeta C.B. Clarke is lectotypified. In addition. new localities for R. subplumosa and R.
Modesto Luceño
doaj   +1 more source

Tackling Rapid Radiations With Targeted Sequencing [PDF]

open access: yes, 2020
In phylogenetic studies across angiosperms, at various taxonomic levels, polytomies have persisted despite efforts to resolve them by increasing sampling of taxa and loci.
Brewer, Grace E.   +8 more
core   +1 more source

Hyperspectral classification of Cyperus esculentus clones and morphologically similar weeds [PDF]

open access: yes, 2020
Cyperus esculentus (yellow nutsedge) is one of the world's worst weeds as it can cause great damage to crops and crop production. To eradicate C. esculentus, early detection is key-a challenging task as it is often confused with other Cyperaceae and ...
Cool, Simon R.   +4 more
core   +1 more source

Chorological and nomenclatural notes on Peruvian Carex (Cyperaceae)

open access: yesCaldasia, 2019
Here we present relevant records of nine species of the genus Carex (Cyperaceae) new for Peru: C. amicta, C. brehmeri, C. camptoglochin, C. enneastachya, C. livida, C. maritima, C. ownbeyi, C. ruth-satzae, and C. vallis-pulchrae.
Pedro Jiménez-Mejías   +8 more
doaj   +1 more source

Post-disturbance vegetation dynamics during the Late Pleistocene and the Holocene: An example from NW Iberia [PDF]

open access: yes, 2012
This is the post-print version of the final paper published in Global and Planetary Change. The published article is available from the link below. Changes resulting from the publishing process, such as peer review, editing, corrections, structural ...
Allen   +67 more
core   +2 more sources

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