Results 151 to 160 of about 33,635 (264)

Portulaca abscondita (Portulacaceae, Caryophyllales), a new microendemic species from Monte Azul, Minas Gerais, Brazil

open access: yesNordic Journal of Botany, EarlyView.
Portulaca (Portulacaceae) is a cosmopolitan genus with centers of diversity in Africa and South America. In Brazil, 22 species are recognized, most occurring in xerophytic environments of the Cerrado, particularly in Campos Rupestres. These rocky montane habitats, especially in northern Minas Gerais state, remain undercollected despite their high ...
Danilo Alvarenga Zavatin   +7 more
wiley   +1 more source

Two new species of Calea ser. Multiplinerviae (Asteraceae: Neurolaeneae) from Brazil

open access: yesNordic Journal of Botany, EarlyView.
Detailed studies of specimens from Rondônia and Mato Grosso do Sul showed that two new species have been misidentified: Calea micropappa resembles Calea pilosa, but differs by leaf apex obtuse to acuminate (versus acute), paleae present (versus paleae absent), disc corolla lobes 1.2–1.3 mm long (versus 0.7–0.8 mm), and pappus scales 0.1–0.25 mm long ...
Vinícius Resende Bueno   +2 more
wiley   +1 more source

From Plant Metabolites to Pollinator Safety: Rethinking Selectivity of Botanical Insecticides in Bees-A Review. [PDF]

open access: yesBiology (Basel)
Souza SA   +5 more
europepmc   +1 more source

Estimation of the Botanical Composition of Clover-Grass Leys from RGB Images Using Data Simulation and Fully Convolutional Neural Networks. [PDF]

open access: yesSensors (Basel), 2017
Skovsen S   +8 more
europepmc   +1 more source

Seed co‐occurrence caused by shared frugivores leaves a long‐lasting signal in the spatial co‐occurrence among plants

open access: yesOikos, EarlyView.
By dispersing seeds, frugivorous animals affect spatial co‐occurrence of plants, ultimately influencing plant community dynamics. Frugivorous animals are intrinsically involved in plant community dynamics, by dispersing seeds of fleshy‐fruited plants and influencing their spatial co‐occurrence.
Antonio J. Perea   +8 more
wiley   +1 more source

Patterns and environmental drivers of root traits across hydrological gradients in old growth boreal forests

open access: yesOikos, EarlyView.
Many key ecosystem functions are affected by plant roots and their traits. However, understanding of the patterns in, and drivers of, root traits lags far behind equivalent knowledge of above‐ground tissues, particularly in boreal old growth forests. We surveyed community‐level root traits across 11 old growth forests spanning a wide latitudinal range ...
Naomi Vöhringer   +4 more
wiley   +1 more source

Botanical Extracts for the Control of Plant-Parasitic Nematodes: Diversity, Modes of Action, Advanced Formulations, and Efficacy. [PDF]

open access: yesPlants (Basel)
Manjarrez-Quintero JP   +5 more
europepmc   +1 more source

Mesoclimatic origin affects alpine plant germination but not its plasticity

open access: yesOikos, EarlyView.
Mountain ecosystems are disproportionately exposed to global warming, which may put alpine plant species in particular at risk. Plant species' migration and persistence depend on successful seed regeneration, with demographic traits such as germination being strongly sensitive to both present and ancestral climate.
Lukas Dietrichstein   +6 more
wiley   +1 more source

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