Results 21 to 30 of about 9,816 (197)

Holocentric Chromosomes of Luzula elegans Are Characterized by a Longitudinal Centromere Groove, Chromosome Bending, and a Terminal Nucleolus Organizer Region [PDF]

, 2011
The structure of holocentric chromosomes was analyzed in mitotic cells of Luzula elegans. Light and scanning electron microscopy observations provided evidence for the existence of a longitudinal groove along each sister chromatid.
A. Houben, Albertson DG, Albertson DG, Allshire RC, Bizzaro D, Black BE, Black BE, Black BE, Braselton JP, Buchwitz BJ, Carroll CW, Cattani MV, Comings DE, Cox AV, da Silva CR, Dernburg AF, Desai A, E. Schroeder-Reiter, Earnshaw WC, Fuchs J, Fukova I, G. Wanner, Gerlach WL, Guerra M, Guerra M, Houben A, Howe M, K. Kumke, K. Nagaki, Kato A, Kitagawa R, L. Ma, M. Murata, Maddox PS, Madej A, Mandakova T, Mandrioli M, Martin R, Moore LL, Nagaki K, Papeschi AG, Pimpinelli S, Raska I, Rebagliati PJ, S. Heckmann, Schneider MC, Schroeder-Reiter E, Sekulic N, Sullivan KF, Valarik M, Vanzela ALL, Vanzela ALL, Viera A, Wanner G   +53 more
core   +1 more source

Characterisation of Holocene plant macrofossils from North Spanish ombrotrophic mires: vascular plants [PDF]

Mires and Peat, 2016
Methods and criteria that were used to identify plant macrofossils from four ombrotrophic mires in northern Spain are presented. Twelve monocotyledon and ten dicotyledon species were recorded.
M. Souto, D. Castro, X. Pontevedra-Pombal, E. Garcia-Rodeja, M.I. Fraga   +4 more
doaj   +1 more source

Guanacos’ and domestic livestock’s summer diets comparison in ecotone of “Tierra del Fuego” (Argentina) [PDF]

, 2018
At present, it is believed that the population of guanacos has increased in the “Isla Grande de Tierra del Fuego”, arising a conflict with livestock and forestry activities.
Alvarenga, Eugenia Celeste, Arriaga, Mirta Olga, Escobar, Julio Martin, Fernández Pepi, María Gabriela, Moretto, Alicia Susana, Stampacchio, Monica Liliana, Zucol, Alejandro Fabián   +6 more
core   +1 more source

Long-term effects of snowmelt timing and climate warming on phenology, growth, and reproductive effort of Arctic tundra plant species1

Arctic Science, 2022
Arctic regions are particularly affected by rapidly rising temperatures and altered snow regimes. Snowmelt timing depends on spring temperatures and winter snow accumulation.
Esther R. Frei, Gregory H.R. Henry
doaj   +1 more source

Vascular plant biodiversity of Katannilik Territorial Park, Kimmirut and vicinity on Baffin Island, Nunavut, Canada: an annotated checklist of an Arctic flora [PDF]

PhytoKeys, 2023
The Arctic ecozone is undergoing a rapid transformation in response to climate change. Establishing a baseline of current Arctic biodiversity is necessary to be able to track changes in species diversity and distribution over time.
Jeffery M. Saarela, Paul C. Sokoloff, Lynn J. Gillespie, Roger D. Bull   +3 more
doaj   +3 more sources

The vegetation of landscape unit Khilinski Gory on Polesie

Інтродукція Рослин, 2009
The unique complex of pine forest and mire vegetation of landscape unit Khilinski Gory are characterized. New locations of rare species of flora Polesie (Jurinea cyanoides, Luzula sylvatica, Otites eugeniae, Polypodium vulgare, Tragopogon ukrainicus) are
V.I. Melnik, O.R. Baransky, O.I. Shynder, O.О. Rak   +3 more
doaj   +1 more source

High-Arctic gamasid mites (Acari, Mesostigmata): community composition on Spitsbergen, Svalbard [PDF]

Polar Research, 2011
This study investigates assemblages of mesostigmatid mites on Spitsbergen, in the Arctic archipelago of Svalbard, Norway. Soil samples were collected from three areas with differing vegetational communities in Adventdalen.
Stephen J. Coulson, Dariusz J. Gwiazdowicz   +1 more
doaj   +1 more source

Natural variation in snow depth and snow melt timing in the High Arctic have implications for soil and plant nutrient status and vegetation composition1

Arctic Science, 2022
Snow cover is a key component in Arctic ecosystems and will likely be affected by changes in winter precipitation. Increased snow depth and consequent later snowmelt leads to greater microbial mineralization in winter, improving soil and vegetation ...
Mikel Moriana-Armendariz, Lennart Nilsen, Elisabeth J. Cooper   +2 more
doaj   +1 more source

Dubious or disappeared phanerogamic species from Romania

Notulae Botanicae Horti Agrobotanici Cluj-Napoca, 1991
In this paper the authors notify the Pteridophyta and Anthophyta - Monocotyledonatae species, that after their opinion are dubious or disappeared from Romania-flora.
Denes PAZMANY, Eugenia CHIRCA
doaj   +1 more source

La familia Juncaceae en México

Acta Botanica Mexicana, 2015
Se presenta un tratamiento de la familia Juncaceae Juss. para la flora de México. La familia incluye dos géneros en dicho país: Juncus L. yLuzula DC. El primero comprende 31 especies y el segundo cinco.
Henrik Balslev, Rodrigo Duno de Stefano
doaj   +1 more source