The Ulmus fall at the transition atlanticum-subboreal in pollen diagrams
Palaeogeography, Palaeoclimatology, Palaeoecology, 1968 Abstract The views of previous authors on the elm fall, especially backgrounded by Tauber's (1965) theory on differential pollen dispersion, are discussed. Five possible explanations are given: climate, competition and edaphical factors, human influence, diseases, selective pollen filtering. For the time being the present author concludes that the
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Stresses, 2023 The proboscis extension response (PER) assay revealed the responsiveness of three subspecies of the honeybee Apis mellifera [A. m. jemenitica (AMJ), A. m. carnica (AMC), and A. m. ligustica (AML)] to water and different concentrations (0.00001, 0.0001, 0.
Abdulaziz S. Alqarni +3 more
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Flower-Visiting Insect Assemblages on Fall-Blooming Native California Sage Scrub Shrubs
Diversity, 2022 Pollinator studies in the endangered California sage scrub ecosystem have focused on spring insect assemblages, when most plant species bloom. Consequently, the insect assemblages using common fall-blooming sage scrub shrubs Lepidospartum squamatum ...
Sofia Dartnell +5 more
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Vegetational response to tephra deposition and land-use change in Iceland: a modern analogue and multiple working hypothesis approach to tephropalynology [PDF]
, 2004 Evidence is provided from the joint application of tephrochronology and palynology in two Icelandic locations — the island of Papey off the east coast and Seljaland in the south.
Blackford, J. J. +2 more
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ANALYSIS OF ATMOSPHERIC POLLEN GRAINS IN DURSUNBEY (BALIKESİR), TURKEY
Trakya University Journal of Natural Sciences, 2018 In this study, airborne pollen grains in the atmosphere of Dursunbey (Balıkesir, Turkey) were collected using a gravimetric method. The pollen grains were investigated by light microscopy and a total of 6265 pollen grains per cm2 were counted.
Hanife Akyalcin +2 more
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Pollen-mediated transfer of herbicide resistance between johnsongrass (Sorghum halepense) biotypes
Scientific Reports, 2022 Johnsongrass (Sorghum halepense) is a troublesome weed in row crop production in the United States. Herbicide resistance is a growing concern in this species, with resistance to ACCase-, ALS-, and EPSPS-inhibitors already reported.
Aniruddha Maity +3 more
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Atmospheric dispersion of airborne pollen evidenced by near-surface and columnar measurements in Barcelona, Spain [PDF]
, 2016 Hourly measurements of pollen near-surface concentration and lidar-derived profiles of particle backscatter coefficients and of volume and particle depolarization ratios during a 5-day pollination event observed in Barcelona, Spain, between 27 – 31 March,
Alarcón Jordán, Marta +7 more
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Analysis of airborne pollen fall in Nicosia (Cyprus)
Environmental Monitoring and Assessment, 2012 Airborne pollen distribution in the city of Nicosia (Cyprus) was measured volumetrically during two consecutive years 2007-2008 on weekly basis using Lanzoni trap (Lanzoni VPPS 2000). A total of 7,880 pollen grains/m(3) belonging to 44 taxa, in 2007 were 3,593 pollen grains/m(3) and in 2008 it was 4,287 pollen grains/m(3), were determined. Out of these,
Çelik, Ali +3 more
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Late Holocene palynology and palaeovegetation of tephra-bearing mires at Papamoa and Waihi Beach, western Bay of Plenty, North Island, New Zealand. [PDF]
, 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
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Pollen calendar of Lublin, 1995-2000
Acta Agrobotanica, 2012 The measurements of pollen fall were carried out in Lublin in 1995 - 2000 years by the gravimetric method. The modified Durham sampler was applied, located at 9 m above ground level.
Krystyna Piotrowska
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