Results 31 to 40 of about 71,742 (249)

Developing a macroecology for human‐altered ecosystems

Ecography, EarlyView.
Although anthropogenically‐induced ecological disruptions are fundamentally important in defining ecosystem properties, they are largely overlooked by macroecological theory. Anthropogenic disruptions and their effects are generally not comparable to one another, nor to disturbances that are part of natural disturbance regimes.
Erica A. Newman, Mark Q. Wilber, Alexandre Génin, Oriana E. Chafe, Henry F. Houskeeper, Steven Lee, Eric L. Berlow, John Harte   +7 more
wiley   +1 more source

Megaphylogenetic Specimen-Level Approaches to the Carex (Cyperaceae) Phylogeny Using ITS, ETS, and matK Sequences: Implications for Classification [PDF]

, 2016
We present the first large-scale phylogenetic hypothesis for the genus Carex based on 996 of the 1983 accepted species (50.23%). We used a supermatrix approach using three DNA regions: ETS, ITS and matK.
Escudero Lirio, Marcial, Global Carex Group, Hahn, Marlene, Jiménez Mejías, Pedro, Maguilla Salado, Enrique, Roalson, Eric H., Villlaverde, Tamara, Waterway, Marcia J.   +7 more
core  

Aquatic and Littoral Successions in Various Post‐Mining Sites—Patterns and Possible Use in Ecological Restoration

Land Degradation &Development, EarlyView.
ABSTRACT Vegetation succession in aquatic and littoral habitats has received much less attention than terrestrial habitats have. We sampled differently aged successional stages at five different types of post‐mining sites, that is, sandpits, stone quarries, clay quarries, brown coal spoil heaps and black coal subsidences, across the Czech Republic ...
Anna Müllerová, Klára Řehounková, Karel Prach   +2 more
wiley   +1 more source

Canadians’ knowledge of cancer risk factors and belief in cancer myths

BMC Public Health
Background Many untrue statements about cancer prevention and risks are circulating. The objective of this study was to assess Canadians’ awareness of known cancer risk factors and cancer myths (untruths or statements that are not completely true), and ...
E Rydz, J Telfer, EK Quinn, SS Fazel, E Holmes, G Pennycook, CE Peters   +6 more
doaj   +1 more source

The "Carex" fen vegetation of northern New South Wales [PDF]

, 2009
The floristic composition and extent of Carex-dominated fens in the New South Wales New England Tablelands Bioregion and Barrington Tops area (lat 28° 41’ S–31° 55’ S; long 151° 23’ E–152° 05’ E) together with outliers from the central west ...
Bell, Dorothy, Hunter, John T.
core  

Alpine flora of Kashmir Himalaya: floristic assessment, life history traits and threat status

Nordic Journal of Botany, EarlyView.
Alpine ecosystems in the Himalaya are considered to be at a higher risk to anthropogenic global change drivers. The Kashmir Himalaya, located in the north‐western side of the Himalayan biodiversity hotspot, harbors a diverse alpine flora, which remains systematically little investigated.
Bilal A. Rasray, Showkeen A. Lone, Rameez Ahmad, Tajamul Islam, Hitendra Padalia, Anzar Ahmad Khuroo   +5 more
wiley   +1 more source

Stilbenes in Carex acuta and Carex lepidocarpa

Molecules
Stilbenes in the roots of Carex acuta and Carex lepidocarpa were studied. Root samples were extracted with 100% methanol and analyzed by HPLC and LC-MS. In this way, trans-resveratrol dimers (m/z 455 Da [M + H]+), trimers (m/z 681 Da [M + H]+) and tetramers (m/z 907 Da [M + H]+) were identified in the extracts.
Jan Tříska, Naděžda Vrchotová, Štěpán Horník, Jan Sýkora, Andrea Kučerová   +4 more
openaire   +4 more sources

Typification of Carex helodes Link, Carex laevigata Sm. and Carex patula Link ex Schkuhr (Cyperaceae) [PDF]

, 2009
The name of Carex helodes Link is neotypified. This species has been erroneously considered as a synonym of Carex laevigata Sm. and Carex patula Schkuhr, which the names are also lectotypified.
Escudero Lirio, Marcial, Luceño Garcés, Modesto, Muñoz Garmendia, Félix   +2 more
core  

Impacts of reindeer grazing on phosphorus sorption and nutrient availability in a tundra site

Oikos, EarlyView.
Reindeer Rangifer tarandus, a large circumpolar herbivore, can influence whether nitrogen (N) or phosphorus (P) is the primary limiting nutrient in tundra plant communities. Specifically, findings from a site in northern Scandinavia suggest that under conditions where reindeer grazing stimulates inorganic N availability, grazing may drive ecosystems ...
Jerzy Szejgis, Johan Olofsson, Henni Ylänne, Michael J. Gundale, Reiner Giesler, Maja K. Sundqvist   +5 more
wiley   +1 more source

Effect of long-term grazing on the contents of phenolic compounds in Carex and Aster plants in Mongolia

Mongolian Journal of Chemistry
Long-term grazing changes the plant diversity and their growth significantly. At the metabolite level, the contents and compositions of the specialized metabolic compounds in plants could also be altered under long-term grazing conditions.
Purevdorj Erdenetsogt, Nomin Munkhbat, Enkhriimaa Narmandakh, Tuvshintogtokh Idree, Chuan-Ming Yeh, Munkhtsetseg Tsednee   +5 more
doaj   +1 more source