Results 11 to 20 of about 14,758 (206)

Revisiting the relationship between stomatal size and speed across species - a meta-analysis. [PDF]

open access: yesNew Phytol
Summary The rate of stomatal opening and closure in response to changes in light affects leaf photosynthesis and water use. However, it is unclear how strongly stomatal size (SS) and density (SD) influence stomatal conductance (gs) kinetics, and whether variation arises from methodological differences, guard cell type or degree of amphistomaty.
Woning N   +31 more
europepmc   +2 more sources

Invasive Predator Management Can Mitigate the Impacts of Fire and Low Rainfall for Some Herpetofauna. [PDF]

open access: yesEcol Evol
Fire, invasive predators, and drought are major threats for herpetofauna. These key global drivers are known to interact, yet, research investigating their interactive effects on wildlife remains limited. We found the management of invasive predators could partially mitigate the negative effects of prescribed fire and low rainfall for some species ...
Macdonald KJ   +3 more
europepmc   +2 more sources

Update of the <i>Xylella</i> spp. host plant database - Systematic literature search up to 30 June 2025. [PDF]

open access: yesEFSA J
Abstract This scientific report provides an update of the Xylella spp. host plant database, aiming to provide information and scientific support to risk assessors, risk managers and researchers dealing with Xylella spp. Upon a mandate of the European Commission, EFSA created and regularly updates a database of host plant species of Xylella spp.
European Food Safety Authority (EFSA)   +8 more
europepmc   +2 more sources

Ptaquiloside and Pterosin B Levels in Mature Green Fronds and Sprouts of Pteridium arachnoideum

open access: yesToxins, 2020
Pteridium arachnoideum, a fern of the Pteridium aquilinum species complex found in South America, is responsible for several different syndromes of poisoning.
Debora da Silva Freitas Ribeiro   +2 more
doaj   +1 more source

Pteridófitas da região noroeste do Estado de São Paulo, Brasil: Dennstaedtiaceae Pteridophytes of the North-western region of the State of São Paulo, Brazil: Dennstaedtiaceae

open access: yesActa Botânica Brasílica, 1998
O trabalho faz parte de uma série de estudos sobre pteridófitas da região noroeste do Estado de São Paulo. Os representantes da família Dennstaedtiaceae são encontrados principalmente nas margens das matas ciliares e em barrancos úmidos e sombreados, com
Claudia R Siqueira, Paulo G Windisch
doaj   +1 more source

Late Holocene palynology and palaeovegetation of tephra-bearing mires at Papamoa and Waihi Beach, western Bay of Plenty, North Island, New Zealand. [PDF]

open access: yes, 1995
The vegetation history of two mires associated with Holocene dunes near the western Bay of Plenty coast, North Island, New Zealand, is deduced from pollen analysis of two cores.
Campbell E. O.   +20 more
core   +2 more sources

Intoxicações em eqüinos no Brasil Intoxications in horses in Brazil

open access: yesCiência Rural, 1998
Relatam-se algumas intoxicações descritas em eqüídeos no Brasil. Dentre as intoxicações por plantas, incluem-se: Senecio spp., Ateleia glazioviana, Crotalaria juncea, Equisetum spp., Pteridium aquilinum, Baccharis coridifolia, Senna occidentalis e ...
Franklin Riet-Correa   +2 more
doaj   +1 more source

Variation in aboveground biomass and necromass of two invasive species in the Atlantic rainforest, southeast Brazil Variação da biomassa e necromassa aérea de duas espécies invasoras na floresta atlântica, sudeste do Brasil

open access: yesActa Botânica Brasílica, 2009
This paper describes the variation of the above-ground biomass, necromass, and net above-ground primary production (NAGPP) of two weed species, Panicum maximum Jacquin (Poaceae) and Pteridium arachnoideum (Kaulf.) Maxon.
Rita Cássia Quitete Portela   +5 more
doaj   +1 more source

Determinação de ptaquilosídeo no leite de vacas por CLAE-UV

open access: yesSemina: Ciências Agrárias, 2019
Samambaias do gênero Pteridium são reconhecidas como responsáveis por casos de intoxicação em bovinos. As espécies de Pteridium comumente encontradas no Brasil são P. arachnoideum e P. caudatum.
Debora da Silva Freitas Ribeiro   +3 more
doaj   +1 more source

Adaptive plant traits under anthropogenic burning regimes: A database for UK heath and mire plant species. [PDF]

open access: yesAm J Bot
Abstract Premise Humans have used fire to manage landscapes for millennia, but this use of fire is declining in many ecosystems. Understanding how plants respond to these changes is key to predicting ecosystem resilience and impacts on services such as biodiversity and carbon sequestration. However, many ecosystems lack data on plant fire responses.
Simpson KJ, Belcher CM, Baker SJ.
europepmc   +2 more sources

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