Results 81 to 90 of about 2,324 (181)

Madagascar's grasses and grasslands:anthropogenic or natural? [PDF]

open access: yes, 2016
Grasses, by their high productivity even under very low pCO2, their ability to survive repeated burning and to tolerate long dry seasons, have transformed the terrestrial biomes in the Neogene and Quaternary.
Bosser J   +21 more
core   +1 more source

Pre‐contact and post‐colonial ecological legacies shape Surinamese rainforests

open access: yesEcology, Volume 105, Issue 5, May 2024.
Abstract Disturbances in tropical forests can have long‐lasting ecological impacts, but their manifestations (ecological legacies) in modern forests are uncertain. Many Amazonian forests bear the mark of past soil modifications, species enrichments, and fire events, but the trajectories of ecological legacies from the pre‐contact or post‐colonial ...
Nina H. Witteveen   +10 more
wiley   +1 more source

Embryo sac development in some representatives of the tribe Cynodonteae (Poaceae)

open access: yesBothalia: African Biodiversity & Conservation, 1994
Chloris virgata Sw., Cynodon dactylon (L.) Pers., Harpochloa falx (L. f.) Kuntze, and Tragus berteronianus Schult. have a Polygonum type of embryo sac development.
A. Strydom, J. J. Spies
doaj   +1 more source

O gênero Chloris (Poaceae) em Pernambuco, Brasil

open access: yesRodriguésia
Com o objetivo de colaborar com o conhecimento da riqueza de Poaceae em Pernambuco, foi estudado o gênero Chloris Sw. As coletas foram realizadas no estado, bem como dados foram coligidos de levantamento em herbários da região.
Jefferson Rodrigues Maciel   +2 more
doaj   +1 more source

Subtropical grass pollen allergens are important for allergic respiratory diseases in subtropical regions [PDF]

open access: yes, 2012
Background: Grass pollen allergens are a major cause of allergic respiratory disease but traditionally prescribing practice for grass pollen allergen-specific immunotherapy has favoured pollen extracts of temperate grasses. Here we aim to compare allergy
Davies, Janet M.   +4 more
core   +1 more source

Savannahs of Asia: Antiquity, biogeography, and an uncertain future [PDF]

open access: yes, 2016
The savannahs of Asia remain locally unrecognized as distinctive ecosystems, and continue to be viewed as degraded forests or seasonally dry tropical forests.
Ashton P   +36 more
core   +2 more sources

Phylogenetics of Andropogoneae (Poaceae: Panicoideae) Based on Nuclear Ribosomal Internal Transcribed Spacer and Chloroplast trnL–F Sequences [PDF]

open access: yes, 2007
Phylogenetic relationships among 85 species representing 35 genera in the grass tribe Andropogoneae were estimated from maximum parsimony and Bayesian analyses of nuclear ITS and chloroplast trnL–F DNA sequences.
Cerros-Tlatilpa, Rosa   +2 more
core   +3 more sources

Molecular phylogenies disprove a hypothesized C4 reversion in Eragrostis walteri (Poaceae) [PDF]

open access: yes, 2017
Background and Aims The main assemblage of the grass subfamily Chloridoideae is the largest known clade of C4 plant species, with the notable exception of Eragrostis walteri Pilg., whose leaf anatomy has been described as typical of C3 plants. Eragrostis
Christin, Pascal-Antoine   +2 more
core  

DISTRIBUCIÓN E INVASIÓN DE GRAMÍNEAS C3 Y C4 (POACEAE) EN UN GRADIENTE ALTITUDINAL DE LOS ANDES DE COLOMBIA

open access: yesCaldasia, 2010
Se estudiaron el patrón de distribución, la riqueza de especies, la composición y lainvasión de gramíneas C3 y C4 en nueve áreas localizadas entre los 300 y los 4250 m dealtitud, en una gradiente altitudinal del Transecto Sumapaz (vertiente occidental de
Giraldo-Cañas Diego
doaj  

Desarrollo y caracterización de marcadores moleculares SSR para Trichloris crinita usando secuencias de gramíneas filogenéticamente cercanas [PDF]

open access: yes, 2018
Trichloris crinita is among the most important native forage grasses in arid regions of America. Despite its importance, molecular resources and sequence data are extremely scarce in this species.
Barboza, Karina   +3 more
core   +2 more sources

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