Results 11 to 20 of about 245,945 (308)

Subfossil pollen spectra as evidence of the altitudinal zonation of the Southern Sikhote-Alin [PDF]

Геосистемы переходных зон, 2022
The correspondence of pollen spectra from surface soil samples from the Olkhovaya Mountain (height 1669 m) to vertical belt vegetation (coniferous-broadleaved forests, spruce-fir forests and golets belt) was analyzed. Attention is paid to the analysis of
Ludmila M. Mokhova, Ekaterina P. Kudryavtseva   +1 more
doaj   +1 more source

Lateglacial And Early Holocene Environments And Human Occupation In Brandenburg, Eastern Germany

Geography, Environment, Sustainability, 2019
The  paper reports   on  the  results   of  the  pollen, plant macrofossil   and geochemical  analyses and the AMS 14C-based  chronology  of the «Rüdersdorf»  outcrop situated  east of Berlin  in Brandenburg  (Germany).
Franziska Kobe, Martin K. Bittner, Christian Leipe, Philipp Hoelzmann, Tengwen Long, Mayke Wagner, Romy Zibulski, Pavel E. Tarasov   +7 more
doaj   +1 more source

Relationship between botanical origin and antioxidants vitamins of bee-collected pollen

Química Nova, 2009
This study quantified vitamin C, E and β-carotene in samples of fresh bee-collected pollen and correlating them with the botanical origin. Vitamin content varied between 13.5 and 42.5 µg/g for vitamin E; 56.3 and 198.9 µg/g for β-carotene and ...
Karla C. L. S. Oliveira, Marina Moriya, Ricardo A. B. Azedo, Ligia B. de Almeida-Muradian, Erica W. Teixeira, Maria L. T. M. F. Alves, Augusta C. de C. C. Moreti   +6 more
doaj   +1 more source

THE PALYNOLOGY CONTRIBUTION IN PALAEOENVIRONMENT INVESTIGATION. A CASE-STUDY OF A LATEGLACIAL-HOLOCENE SEDIMENTARY SEQUENCE NEAR BOLOGNA (NORTHERN ITALY)

EQA, 2017
The palynological studies are extremely relevant in the investigation of the evolution of palaeoenvironments. A case of pedopalynological studies was applied to the Lateglacial to Holocene sedimentary sequence derived from a small site located in San ...
Marco Marchesini, Silvia Marvelli, Antonella Lobietti   +2 more
doaj   +1 more source

Pollen of non-nectariferous plants in the microscopic image of honyes of some communes of the Świętokrzyskie Voivodeship

Acta Agrobotanica, 2012
In the investigated material, consisting of 143 honey samples, pollen grains of 109 taxa were identified; 80 were represented by nectariferous plants and 29 by non-nectariferous plants.
Ernest Stawiarz
doaj   +1 more source

Pollen characterisation of Maltese honey [PDF]

, 2013
In 2004 and 2005, pollen characterisation of 35 samples of honey collected from the islands of Malta and Gozo, was carried out with the aim to identify the botanical origin of honey produced on these islands.
Gambin, Claudette, Lanfranco, Edward, Mifsud, David   +2 more
core   +1 more source

Floral Resource Partitioning between Centris (Heterocentris) analis (Fabricius, 1804) and Centris (Heterocentris) terminata Smith, 1874 (Hymenoptera, Apidae, Centridini), in an Urban Fragment of the Atlantic Forest

Sociobiology, 2017
The knowledge on plant species used for the collection of floral resources is crucial to understanding interactions between plants and bees. The aim of the present study was to identify floral resources used by Centris analis and Centris terminata to ...
Reinanda Lima, Maria Ferreira-Caliman, Marcos da Costa Dórea, Caroline Tito Garcia, Francisco de Assis Ribeiro dos Santos, Favízia Freitas Oliveira, Carlos Alberto Garófalo   +6 more
doaj   +1 more source

Climate and Species Traits Drive Changes in Holocene Forest Composition Along an Elevation Gradient in Pacific Canada

Frontiers in Ecology and Evolution, 2022
Projected changes in climate are expected to shift the ranges of many tree species poleward and to higher elevations. Here, we examine past changes in forest composition in Pacific Canada using a paleoecological approach and investigate the role of past ...
Terri Lacourse, Matthew A. Adeleye
doaj   +1 more source

Molecular cloning and transcriptional activity of a new Petunia calreticulin gene involved in pistil transmitting tract maturation, progamic phase, and double fertilization [PDF]

, 2013
Calreticulin (CRT) is a highly conserved and ubiquitously expressed Ca2+-binding protein in multicellular eukaryotes. As an endoplasmic reticulum-resident protein, CRT plays a key role in many cellular processes including Ca2+ storage and release ...
A Christensen, AJ Crofts, AM Hassan, Anna Suwińska, BA Kwiatkowski, BQ Huang, CM Williams, CN Nardi, CO Lim, DE Nelson, E Gasteiger, E Zuckerkandl, F Chen, H Jin, HJ Li, HJ Li, HQ Tian, J Denecke, J Felsenstein, J Li, JC Huang, JL Went Van, JR Nevins, Justyna Prusińska, K Hsieh, K Tamura, Krzysztof Gumowski, L Navazio, L Thelin, LI Gold, LL Ge, M Iwano, M Lenartowska, M Lenartowska, M Lenartowska, M Michalak, MA Larkin, Marta Lenartowska, MTM Willemse, N Blom, N Borisjuk, N Saitou, P Mariani, P Shaw, Robert Lenartowski, S Persson, S Persson, SF Altschul, SJ Coughlan, T Dresselhaus, T Ishimizu, UK Tirlapur, WA Wang, XL Ye, XY Jia, XY Jia, Y Fu, Y Saijo, YQ An, Z Li   +59 more
core   +2 more sources

Holocene Environmental and Anthropogenic Changes of Soils and Vegetation in the Central Russian Upland: The Case Study in the “Belogorie” Natural Reserve

Geosciences, 2018
Several episodes of past afforestation were reconstructed in a grassland area of the Yamskaya Steppe site within the “Belgorie„ natural reserve on the Central-Russian Upland.
Yury Chendev, Olga Khokhlova, Elena Ponomarenko, Ekaterina Ershova, Alexander Alexandrovskiy, Tatyana Myakshina   +5 more
doaj   +1 more source