Results 71 to 80 of about 66,393 (312)

Airborne Quercus Pollen in SW Spain: Identifying Favourable Conditions for Atmospheric Transport and Potential Source Areas

open access: yes, 2016
The pollen grains of Quercus spp. (oak trees) are allergenic. This study investigates airborne Quercus pollen in SW Spain with the aim identifying favourable conditions for atmospheric transport and potential sources areas.
Maya-Manzano, J.M.   +11 more
core   +1 more source

Late Holocene environmental history of Dojran, Macedonia: Investigating the interplay of imperial dynamics and climatic change

open access: yesJournal of Quaternary Science, EarlyView.
ABSTRACT This study presents a high‐resolution, multi‐proxy reconstruction of environmental and land‐use change from Lake Dojran over historical times (last 2500 years), combining pollen, biomarkers, radiocarbon dating, Ottoman taxation records and other historical data.
Alessia Masi   +15 more
wiley   +1 more source

Descripción de la primera especie neotropical de Bassettia Ashmead, 1887 de Panamá (Hymenoptera, Cynipidae, Cynipini)

open access: yesGraellsia, 2010
Se describe una nueva especie de Bassettia Ashmead, 1887, Bassettia caulicola (Hymenoptera, Cynipidae, Cynipini), de Panamá. La nueva especie induce agallas en los tallos de Quercus bumelioides Liebm. (Fagaceae secc. Quercus).
E. Medianero, J. L. Nieves-Aldrey
doaj   +1 more source

Kermes quercus Linn. [PDF]

open access: yesPsyche: A Journal of Entomology, 1901
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
openaire   +2 more sources

Microsporogenesis and Embryogenesis in Quercus [PDF]

open access: yes, 1962
Representative species from two subgenera in the genus Quercus were examined for floral structure and phenology, microsporogenesis, and embryogenesis. The species selected for investigation were: Quercus alba in the Lepidobalanus subgenera, and Quercus ...
Stairs, G. R.
core   +1 more source

The elephant underground: Belowground plant traits and their increasing importance in ecological studies

open access: yes
The Bulletin of the Ecological Society of America, EarlyView.
Jacqueline P. Ott   +3 more
wiley   +1 more source

Oxygen transmission rate in American oak barrel staves used for wine aging: Influence of wood macrostructure

open access: yesJournal of the Science of Food and Agriculture, EarlyView.
Abstract Background Oak barrels are widely used in wine and spirit aging, where oxygen transmission plays a key role in the development of chemical and sensory properties. In cooperage, stave selection is traditionally based on grain width; however, the extent to which grain and wood macrostructure determine oxygen transmission under barrel conditions ...
Maria del Alamo‐Sanza   +3 more
wiley   +1 more source

Pollen morphology of Quercus (subgenus Quercus, section Quercus) in Iran and its systematic implication

open access: yesActa Societatis Botanicorum Poloniae, 2012
For the first time, pollen morphology of 9 (4 spp. and 5 subspp.) taxa representing lobed leaved oaks of Iran in the family of Fagaceae has been examined and illustrated using light microscopy and scanning electron microscopy of acetolysed material. Detailed pollen morphological characteristics are given for <em>Quercus</em> section.
Parisa Panahi   +3 more
openaire   +3 more sources

Behavioral responses of black bears to human presence and infrastructure in Yosemite National Park

open access: yesThe Journal of Wildlife Management, EarlyView.
Using GPS collar data from black bears in Yosemite National Park, we examined how bear spatiotemporal activity in relation to human development shifted during the COVID‐19 park closure in 2020. In the absence of visitors, bears maintained consistent landscape‐scale space use but altered fine‐scale spatial and temporal behaviors.
Jennifer R. Green   +9 more
wiley   +1 more source

Intercepción de lluvia en bosques de montaña en la cuenca del río Texcoco, México

open access: yesRevista Mexicana de Ciencias Forestales, 2017
El proceso de intercepción de lluvia por la masa arbórea, como componente del ciclo hidrológico en áreas forestales, está determinado, entre otras causas, por las condiciones climáticas, orográficas y por las características de la vegetación. Se
Eulogio Angel Flores Ayala   +6 more
doaj   +1 more source

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