Results 31 to 40 of about 145 (94)

Understanding Past and Present Vegetation Dynamics Using the Palynological Approach: An Introductory Discourse [PDF]

open access: yes, 2021
Palynology is a multi-disciplinary field of science that deals with the study and application of extinct, [fossilised] and extant palynomorphs (pollen and spore) and other related microscopic biological entities in the environment.
Obigba, Sylvester Onoriode
core   +2 more sources

Diversidade Palinológica das Convolvulaceae do Parque Nacional do Catimbau, Buíque, PE, Brasil Pollen diversity of Convolvulaceae at Catimbau National Park, Buíque, Pernambuco State, Brazil

open access: yesActa Botânica Brasílica, 2008
Foram registradas quatorze espécies de Convolvulaceae no Parque Nacional do Catimbau. Com base na morfologia polínica, os táxons foram subdivididos em dois grupos: Psiloconiae - Evolvulus elegans Moric, E. frankenioides Moric, E.
Maria Teresa Aureliano Buril Vital   +2 more
doaj   +1 more source

Genetic characterization of Genista sericea Wulfen (Cytiseae - Fabaceae) as revealed by nuclear DNA content and ITS nrDNA region analysis [PDF]

open access: yes, 2012
Genista sericea Wulfen, a northern Illyrian amphi-Adriatic species, presents a certain morphological variability. To clarify whether the genetic variations support the morphological differences among accessions of different geographic origin, analysis of
Borut Bohanec   +3 more
core   +2 more sources

Taxonomy and nomenclature in palaeopalynology: basic principles, current challenges and future perspectives [PDF]

open access: yes, 2021
Effective communication of taxonomic concepts is crucial to meaningful application in all biological sciences, and thus the development and following of best practices in taxonomy and the formulation of clear and practical rules of nomenclature underpin ...
Bachelier, Julien B.   +6 more
core   +1 more source

Palinotaxonomia de Espécies de Schultesia Mart. Gentianaceae Juss. [PDF]

open access: yes, 2021
This work is part of a more comprehensive study of taxonomic review of Schultesia Mart. Pollen grains of 17 species have been analyzed: S. angustifolia Griseb., S. aptera Cham., S. australis Griseb., S. bahiensis E.F.Guim., S.
Gonçalves-Esteves, Vânia   +3 more
core   +1 more source

Palinologia de espécies de Gesneriaceae Rich. & Juss. ocorrentes no Estado do Rio de Janeiro, Brasil Palynology of Gesneriaceae Rich. & Juss. species from Rio de Janeiro State, Brazil

open access: yesActa Botânica Brasílica, 2010
Foi realizado um estudo palinológico de 21 espécies da família Gesneriaceae reunidas em seis gêneros e três tribos: tribo Beslerieae -Besleria L. (4 spp.); tribo Episcieae - Codonanthe (Mart.) Hanst. (3 spp.), Nematanthus Schrad.
Ana Carolina da Silva Fourny   +3 more
doaj   +1 more source

Pollen morphology and exine ultrastructure of Brasiliocroton P.E. Berry & Cordeiro (Euphorbiaceae)

open access: yesActa Botânica Brasílica
The present study aimed to morphologically characterize the pollen grains of species of Brasiliocroton mamoninha and B. muricatus in order to expand palynological knowledge of the group and provide additional micromorphological information useful for ...
Lidian Ribeiro de Souza   +2 more
doaj   +1 more source

Fire drives major Holocene vegetation shifts between subtropical and Mediterranean‐type ecosystems: a case study from a biodiversity hotspot in South Africa

open access: yesEcography, Volume 2024, Issue 12, December 2024.
Fire plays a pivotal role in driving ecological shifts between Mediterranean‐type vegetation and subtropical ecosystems in South Africa. This study investigates long‐term environmental dynamics and ecological regime changes at the Mediterranean‐type vegetation /subtropical boundary using a 6000‐year palaeoecological sequence from the Baviaanskloof – a ...
Lynne J. Quick   +4 more
wiley   +1 more source

Vegetation Index and Dynamics [PDF]

open access: yes, 2022
The book contemplates different ways of approaching the study of vegetation as well as the type of indices to be used. However, all the works pursue the same objective: to know and interpret nature from different points of view, either through knowledge ...

core   +1 more source

PALINOTAXONOMIA DE ESPÉCIES BRASILEIRAS DETONTELEAAUBL. (HIPPOCRATEACEAE JUSS.) [PDF]

open access: yes, 1998
Palinotaxonomia de espécies brasileiras deTontelea Aubl. - Hippocrateaceae Juss.En el presente trabajo se propuso el estudiopalinotaxonómico de 20 especiesbrasileñas de Tontelea Aubl.(Hippocrateaceae Juss.) con el objetivo decontribuir a una mejor ...
Gonçalves-Esteves, Vania   +1 more
core   +4 more sources

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