Results 41 to 50 of about 3,267 (186)

Palinotaxonomia de espécies de Chrysolaena H. Rob., Echinocoryne H. Rob. e Stenocephalum Sch. Bip. (Vernonieae-Compositae) ocorrentes no sudeste do Brasil Palynotaxonomy of Chrysolaena H. Rob., Echinocoryne H. Rob. and Stenocephalum Sch. Bip. (Vernonieae-Compositae) species from Southeast Brazil

open access: yesActa Botânica Brasílica, 2007
Realizou-se o estudo polínico de 11 espécies distribuídas em três gêneros, Chrysolaena H. Rob., Echinocoryne H. Rob. e Stenocephalum Sch. Bip., pertencentes à subtribo Vernoniinae, com o objetivo de contribuir para a caracterização polínica dessas ...
Cláudia Barbieri Ferrreira Mendonça   +3 more
doaj   +1 more source

Palinologia dos folhelhos da Fazenda Muzinho, Floriano, Piauí

open access: yesBoletim IG, 1980
Os folhelhos da Fazenda Muzinho representam atualmente um dos horizontes estratigraficos mesozoicos mais comumente citados no âmbito da Paleontologia. O trabalho ora apresentado refere-se, principalmente, a analise polinica desses sedimentos.
Murilo Rodolfo de Lima   +1 more
openaire   +1 more source

Preliminary study of the airborne pollen in the atmosphere of Puerto Ayora (Galapagos Islands, Ecuador) [PDF]

open access: yes, 2017
Galapagos is an archipelago of volcanic islands located 972 km west from the continental Ecuador. They were declared by the UNESCO as a World Heritage Site and Biosphere Reserve due to their singular environmental value, where a third part of the ...
Jaramillo Díaz, Patricia   +3 more
core  

Fire, Fuel, and Climate Interactions in Temperate Climates

open access: yesAGU Advances, Volume 6, Issue 2, April 2025.
Abstract Temperate regions around the world are experiencing longer fire weather seasons, yet trends in burned area have been inconsistent between regions. Reasons for differences in fire patterns can be difficult to determine due to variable vegetation types, land use patterns, fuel conditions, and human influences on fire ignition and suppression ...
Stephanie K. Kampf   +9 more
wiley   +1 more source

Multiporate Pollen of Poaceae as Bioindicator of Environmental Stress: First Archaeobotanical Evidence from the Early–Middle Holocene Site of Takarkori in the Central Sahara

open access: yesQuaternary, 2022
This paper reports on the most ancient unusual morphological trait of the apertures of Poaceae pollen found in archaeological layers. In Poaceae, high levels of hybridization, polyploidy, apomixis, and multiporate pollen are often related.
Anna Maria Mercuri   +2 more
doaj   +1 more source

Compendio bibliografico sulla paleobotanica in Sardegna [PDF]

open access: yes, 1985
In this work 87 papers dealing with Sardinian Paleobotany, have been catalogued.
Filigheddu, Rossella Speranza
core  

Corrigendum to “Pollen-based paleoenvironmental and paleoclimatic change at Lake Ohrid (south-eastern Europe) during the past 500 ka” published in Biogeosciences, 13, 1423–1437, 2016 [PDF]

open access: yes, 2018
In this corrigendum we report an updated pollen record from the Lake Ohrid DEEP site spanning the past 500 ka whereby we have reprocessed and re-analyzed 104 samples affected by chemical procedure problems that occurred in one palynological laboratory ...
Bertini, A.   +16 more
core   +1 more source

Deposição Subaquática Diferencial de Pólen e Esporos [PDF]

open access: yesAnuário do Instituto de Geociências, 2013
O presente trabalho pretende apresentar a importância de realizar uma rigorosa análise espacial de taxas diferenciais de deposição de pólen e esporos em ambientes subaquáticos para uma melhor correlação com a vegetação de origem.
Cynthia Fernandes Pinto da Luz
doaj  

Plants, Fire and Landscape at the Prehistoric Pile-Dwelling Village of Palù di Livenza (PaluON1), UNESCO Site in the Italian Alps

open access: yesQuaternary, 2023
This paper presents palynological data obtained from a trench excavated at the Neolithic pile-dwelling archaeological site of Palù di Livenza (northeastern Italy). The site is in a wetland located in a tectonic basin at the foot of the Cansiglio plateau,
Jessica Zappa   +7 more
doaj   +1 more source

PALINOLOGIA E A INTERAÇÃO PLANTA-ABELHA: REVISÃO DE LITERATURA

open access: yesArquivos de Ciências Veterinárias e Zoologia da UNIPAR, 2017
A Palinologia é responsável pelo estudo do pólen de angiospermas, esporos de pteridófitas e de fungos, cistos de algas, dinoflagelados, foraminíferos acritarcas e partículas de carvão. Três hipóteses embasam as análises palinológicas: (1) a chuva polínica vigente reflete a vegetação presente na área em estudo; (2) o acúmulo e a conservação dos ...
Francisco Cildomar da Silva Correia   +2 more
openaire   +2 more sources

Home - About - Disclaimer - Privacy