Results 21 to 30 of about 83,600 (300)

Late Little Ice Age palaeoenvironmental records from the Anzali and Amirkola Lagoons (south Caspian Sea): Vegetation and sea level changes [PDF]

open access: yes, 2011
This is a postprint version of the article. The official published article can be found from the link below - Copyright @ 2011 Elsevier Ltd.Two internationally important Ramsar lagoons on the south coast of the Caspian Sea (CS) have been studied by ...
A. Naqinezhad   +89 more
core   +1 more source

Phenology of flowering and pollen release of selected herbaceous plants in Szczecin and Gudowo (Western Pomerania) and the risk of pollen allergy

open access: yesActa Agrobotanica, 2012
This paper presents the course of the pollen season of selected allergenic taxa (Secale spp., Rumex spp., Plantago spp., Urtica spp., Artemisia spp., Chenopodiaceae and Poaceae) in Szczecin (2009) and Gudowo (Western Pomerania, Poland) (2009–2010), and ...
Aleksandra Kruczek, Małgorzata Puc
doaj   +1 more source

Adult nutrition affects reproduction and flight performance of the invasive fall armyworm, Spodoptera frugiperda in China

open access: yesJournal of Integrative Agriculture, 2021
Floral resources, such as carbohydrate-rich nectar or pollen, can bolster fitness and raise reproductive output of adult lepidopterans. Here, we used laboratory experiments to assess how those plant-derived foods impact adult fecundity, reproductive ...
Li-mei HE   +7 more
doaj   +1 more source

A multiple profile approach to the palynological reconstruction of Norse landscapes in Greenland's Eastern Settlement [PDF]

open access: yes, 2014
Acknowledgments The Leverhulme Trust is thanked for financial support. Gordon Cook provided radiocarbon dates. Thanks are also due to Andy McMullen for botanical identifications and assistance in the field, and to Sikuu Motzfeld for hospitality during ...
Edwards, Kevin J   +2 more
core   +1 more source

Secondary Outcomes of the Ole e 1 Proteins Involved in Pollen Tube Development: Impact on Allergies

open access: yesFrontiers in Plant Science, 2020
Ole e 1 protein is involved in olive fertilization mechanisms controlling pollen tube development. Similarly to the process by which pollen grains hydrated and form a pollen tube upon arrival at the female gametophyte, when pollen grains fall on the ...
M. Fernández-González   +5 more
doaj   +1 more source

Iron Age to Medieval entomogamous vegetation and Rhinolophus hipposideros roost in south-eastern Wales (UK) [PDF]

open access: yes, 2006
Karst cave systems are well developed in Wales (UK) and, in some instances, constitute important bat roosts. Ogof Draenen, near Blaenavon in south-east Wales, is the most recent major cave discovery (1994) with already > 70 km of passages explored ...
Bronk   +24 more
core   +1 more source

Vegetation responses to past volcanic disturbances at the Araucaria araucana forest‐steppe ecotone in northern Patagonia

open access: yesEcology and Evolution, 2022
Volcanic eruptions play an important role in vegetation dynamics and its historical range of variability. However, large events are infrequent and eruptions with a significant imprint in today's vegetation occurred far in the past, limiting our ...
Ricardo Moreno‐Gonzalez
doaj   +1 more source

Compilation of relative pollen productivity (RPP) estimates and taxonomically harmonised RPP datasets for single continents and Northern Hemisphere extratropics [PDF]

open access: yesEarth System Science Data, 2020
Relative pollen productivity (RPP) estimates are fractionate values, often in relation to Poaceae, that allow vegetation cover to be estimated from pollen counts with the help of models.
M. Wieczorek   +3 more
doaj   +1 more source

Constraining Holocene hydrological changes in the Carpathian–Balkan region using speleothem δ18O and pollen-based temperature reconstructions [PDF]

open access: yes, 2014
Here we present a speleothem isotope record (POM2) from Ascunsă Cave (Romania) that provides new data on past climate changes in the Carpathian–Balkan region from 8.2 ka until the present.
Dragusin, Virgil   +5 more
core   +1 more source

Climate, Carbon Dioxide, and Plant-Based Aero-Allergens: A Deeper Botanical Perspective

open access: yesFrontiers in Allergy, 2021
There is global evidence of a general increase in the incidence and prevalence of respiratory diseases including allergic rhinitis and associated asthma.
Lewis H. Ziska
doaj   +1 more source

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