Results 51 to 60 of about 105,933 (212)

Pollen Collected and Foraging Activities of Frieseomelitta varia (Lepeletier) (Hymenoptera: Apidae) in an Urban Landscape

Sociobiology, 2013
Cities provide resources for animal species that live within them or inhabit their surroundings. This has motivated an increase in ecological studies of urban areas, including the interactions between plants and pollinators.
Kátia Paula Aleixo, Letícia Biral de Faria, Carlos Alberto Garófalo, Vera Lucia Imperatriz Fonseca, Cláudia Inês da Silva   +4 more
doaj  

Sidr Honeys Physical and Chemical Characterization, a Comprehensive Approach through LC-MS/MS, NMR, and GC-MS Analysis

Separations, 2023
Honey intake is advantageous to human health due to its antioxidant, anticancer, anti-inflammatory, and antimicrobial properties, all of which are attributed to the rich bioactive compound contents.
Aida A. Abd El-Wahed, Eman H. Rashwan, Mohamed F. AlAjmi, Shaden A. M. Khalifa, Aamer Saeed, Chao Zhao, Yahya Al Naggar, Zhiming Guo, Syed G. Musharraf, Kai Wang, Hesham R. El-Seedi, Nermeen Yosri   +11 more
doaj   +1 more source

Macrofossils and pollen representing forests of the pre-Taupo volcanic eruption (c. 1850 yr BP) era at Pureora and Benneydale, central North Island, New Zealand.

, 1995
Micro- and macrofossil data from the remains of forests overwhelmed and buried at Pureora and Benneydale during the Taupo eruption (c. 1850 conventional radiocarbon yr BP) were compared. Classification of relative abundance data separated the techniques,
Lowe, David J., Matthew S. McGlone, McGlone, Matt S., Beverley R. Clarkson, Clarkson, Beverley R., David J. Lowe, Clarkson, Bruce D., Bruce D. Clarkson   +7 more
core   +1 more source

Quaternary Vegetation History of the Lower Bengal Basin (India) Inferred from Palaeo-palynological Analysis

Annals of Tropical Research, 2015
Black peat samples deposited in between sandy clay layers were collected from an uncovered profile at Rajarhat, 24 Paraganas (N), 20 km extreme North East of the city of Kolkata, (22⁰34’N, 88⁰ 30′ E) West Bengal.
Payel Roy, Chandra Barui
doaj   +1 more source

Pollen Analysis Of Peat Underlying A Treeless Heath Area In The Forest - Tundra Transition Near Churchill, Manitoba. [PDF]

, 1949
Peat from a treeless "barrens" of the forest-tundra transition has been studied by the method or pollen analysis. The frequencies of various fossil pollens at successively greater depths of the peat deposits have been determined and presented in pollen ...
Johnson, Edward J.
core  

Pollen counts in Hashilan Wetland sediment core, western Iran

, 2023
For pollen analysis, standard analytical techniques (Faegri and Iversen, 1989) were applied for pollen extraction. Samples were treated with 10% KOH, 10% HCl, 37% HF and acetolysis.
Dupont, Lydie M, Djamali, Morteza, Safaierad, Reza   +2 more
core   +1 more source

Insight into the vegetation development of the Karkonosze Mountains (southwestern Poland) during the Late Vistulian and Holocene, based on data from glacial lakes

Acta Palaeobotanica
New palaeoecological records from two glacial lakes (the Mały Staw – 1183 m a.s.l. and the Wielki Staw – 1225 m a.s.l.) from the Polish Western Sudetes were obtained with the aim of better understanding the long-term vegetation development, the ...
Agnieszka Wacnik, Ewa Madeyska
doaj   +1 more source

Human impact on an island ecosystem: pollen data from Sandoy, Faroe islands

, 2008
<b>Aim</b>: To investigate the form and dynamics of ecosystems on an isolated island in the North Atlantic before human settlement in the first millennium ad, and the effects of human activities thereafter. <b>Location</b>: The
Church, Mike J., Gathorne-Hardy, F., Edwards, KJ, Gathorne-Hardy, FJ, Cook, G.T., Newton, Anthony J., Church, M.J., Lawson, Ian T., Gathorne-Hardy, Freddy J., Church, MJ, Dugmore, Andrew J., Cook, GT, Lawson, IT, Dugmore, AJ, Lawson, I.T., Dugmore, A.J., Edwards, Kevin J., Newton, AJ, Edwards, K.J., Newton, A.J., Cook, Gordon T.   +20 more
core   +1 more source

Forecasting Birch Pollen Levels in Belgium: First Analysis of the 2021 Season

, 2023
Belgium is a highly industrialized and densely populated country with substantial air pollution and at least ~10% of the people develop allergic rhinitis symptoms due to birch tree pollen. The only information on airborne birch pollen is coming from five
C. Mensink, A.W. Delcloo, O. Jorba, W.W. Verstraeten, N. Bruffaerts, L. Hoebeke, R. Kouznetsov, M. Sofiev   +7 more
core   +1 more source

Paleoenvironmental changes and the development of lakes in the late pleistocene and holocene on the Kola Peninsula southern coast (near the village of Umba)

Transactions of the Karelian Research Centre of the Russian Academy of Sciences, 2015
New results of pollen analysis for a lake in the Umba River catchment (southern Kola Peninsula) are presented. The lake was surveyed within a study of lake sediments carried out to determine the relative White Sea shore displacements in the Late Glacial ...
Tatiana Sapelko, Vasili Kolka, Vladimir Yevzerov   +2 more
doaj   +1 more source