Zobrazeno 1 - 10
of 33
pro vyhledávání: '"Hanna Ranta"'
Publikováno v:
Nordina: Nordic Studies in Science Education, Vol 20, Iss 2 (2024)
Systems thinking is considered an important skill when teaching biology and sustainable development in the 21st century. The key to understanding biodiversity and thus sustainability in biology is understanding reproduction as a phenomenon. The aim o
Externí odkaz:
https://doaj.org/article/c0a20664a5f14da7be9fbea41f327dce
Autor:
Pilvi Siljamo, Mikhail Sofiev, Alix Rasmussen, Hanna Ranta, Tapio Linkosalo, Jaakko Kukkonen, Auli Rantio-Lehtimäki, Elena Severova, S. Jaeger
Publikováno v:
International Journal of Biometeorology
A birch pollen emission model is described and its main features are discussed. The development of the model is based on a double-threshold temperature sum model that describes the propagation of the flowering season and naturally links to the therma
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3a89b4e368c815db27c1682d3f591baf
http://europepmc.org/articles/PMC3527742
http://europepmc.org/articles/PMC3527742
Autor:
Siegfried Jäger, Pilvi Siljamo, Auli Rantio-Lehtimäki, Sara Ortega Jimenez, Ekaterina Khoreva, Łukasz Grewling, Mikhail Sofiev, Jaakko Kukkonen, Laura Veriankaite, Hanna Ranta, Tapio Linkosalo, Ekaterina Yakovleva, Anton Svetlov, Elena Filatova
Publikováno v:
International Journal of Biometeorology
An evaluation of performance of the System for Integrated modeLling of Atmospheric coMposition (SILAM) in application to birch pollen dispersion is presented. The system is described in a companion paper whereas the current study evaluates the model
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e4783063048794f2e382085e53d185bb
Autor:
Annukka Oksanen, Alpo Luomajoki, Jaakko Kukkonen, Hanna Ranta, Mikhail Sofiev, Tapio Linkosalo, Pilvi Siljamo
Publikováno v:
Agricultural and Forest Meteorology. 150:1579-1584
The accurate prediction of the flowering period and the amount of released pollen of wind-pollinated trees is important for predicting the aerobiological pollen amounts and for estimating the intensity of background pollination of orchard seed produc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::36b39fc6937607df2f4ef0b8ed88ff97
https://doi.org/10.1016/j.agrformet.2010.08.007
https://doi.org/10.1016/j.agrformet.2010.08.007
Publikováno v:
Trees. 24:99-104
Pre-zygotic pollen competition is believed to play an important role in nonrandom mating, i.e., the unequal success of different pollen donors. We studied pollen–pollen interactions of Scots pine in vitro using multiwell plates with freely permeabl
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8ff1690826657da4a9ca7d892469310c
https://doi.org/10.1007/s00468-009-0382-4
https://doi.org/10.1007/s00468-009-0382-4
Publikováno v:
International Journal of Environmental Research and Public Health, Vol 6, Iss 6, Pp 1706-1723 (2009)
International Journal of Environmental Research and Public Health; Volume 6; Issue 6; Pages: 1706-1723
International Journal of Environmental Research and Public Health
International Journal of Environmental Research and Public Health; Volume 6; Issue 6; Pages: 1706-1723
International Journal of Environmental Research and Public Health
In this 31-year retrospective study, we examined the influence of meteorology on airborne Betula spp. (birch) pollen concentrations in Turku, Finland. The seasonal incidence of airborne birch pollen in Turku occurred over a brief period each year dur
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7efc728c6d663d0de80202608a82756f
https://doi.org/10.3390/ijerph6061706
https://doi.org/10.3390/ijerph6061706
Publikováno v:
Grana. 47:285-296
We compared two >20 year long data sets of airborne and deposited pollen from northern Finnish Lapland (Kevo) and the middle boreal forest zone (Oulu) in terms of the plant taxa represented and their annual pollen quantities. Tree pollen (Betula spp.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::61df7dd0d192edd59912d6cd1624fc76
https://doi.org/10.1080/00173130802457230
https://doi.org/10.1080/00173130802457230
Autor:
Elena Severova, Mikhail Sofiev, Pilvi Siljamo, Alexander Minin, Svetlana Polevova, Jaakko Kukkonen, Hanna Ranta, Eero Kubin
Publikováno v:
Aerobiologia. 24:211-230
The paper presents an assessment of birch pollen seasons in Finland and Russia. The re-analysis covered the period from 1994 to 2005 and was focused on suspected long-range transport events that were recorded both in Moscow and at several Finnish sit
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7cfcd2732651e9197da5ffaf2b3b07ca
https://doi.org/10.1007/s10453-008-9100-8
https://doi.org/10.1007/s10453-008-9100-8
Autor:
Hanna Ranta, Annukka Oksanen, Tapio Linkosalo, Liisa Laukkanen, Tatu Hokkanen, Kristoffer Bondestam
Publikováno v:
Forest Ecology and Management. 255:643-650
The magnitude of flowering of many forest tree species varies intermittently and extensively from year to year. Besides its great consequences for the reproductive biology of plant species, the phenomenon has manifold implications for silviculture, e
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6e8f9dcdace0904cdd7d6893ee362446
https://doi.org/10.1016/j.foreco.2007.09.040
https://doi.org/10.1016/j.foreco.2007.09.040
Autor:
Hanna Ranta, Pinja Satri
Publikováno v:
Grana. 46:274-284
Many anemophilous, early‐flowering tree genera include allergy plants of world‐wide significance. We studied the synchronisation of high and low pollen years in the genera Betula, Alnus, Corylus, Salix and Populus and the cumulative effects that
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ff71c3087698722781403d5a4db25f95
https://doi.org/10.1080/00173130701653079
https://doi.org/10.1080/00173130701653079