Results 101 to 110 of about 19,489 (264)

Sinningia pampeana sp. nov. (Gesneriaceae) from the Pampa's rocky outcrops in southern Brazil and Uruguay

open access: yesNordic Journal of Botany, EarlyView.
Sinningia pampeana is a new rupicolous species from the rocky outcrops of the Pampa biome in southern Brazil and Uruguay. Morphological analyses based on herbarium material, field observations, and detailed illustrations support its recognition as a distinct species from Sinningia sellovii.
Gabriel Emiliano Ferreira   +4 more
wiley   +1 more source

Two new endemic species of Portulaca (Portulacaceae) from the Brazilian Pampa grasslands

open access: yesNordic Journal of Botany, EarlyView.
Portulaca L. is a monophyletic, cosmopolitan genus of succulent plants comprising ca 153 species, with particularly high diversity in xerophytic ecosystems in tropical and subtropical regions. Based on morphological evidence, we describe and illustrate two new species from the Brazilian Pampa, Portulaca guaritensis and Portulaca guenoa.
José Roberto Ferraz   +3 more
wiley   +1 more source

Habitat loss reshuffles ecological and evolutionary interactions in a seed dispersal network

open access: yesOikos, EarlyView.
In tropical forests, habitat loss reshapes species composition, favoring generalists and recently emerged lineages while specialists and older evolutionary lineages are lost. However, how changes in species ecological attributes and evolutionary history affect ecological processes is poorly explored.
Fernando César Gonçalves Bonfim   +8 more
wiley   +1 more source

Outbreak of aggressions and transmission of rabies in human beings by vampire bats in northeastern Brazil

open access: yesRevista da Sociedade Brasileira de Medicina Tropical, 2002
Outbreaks of attacks upon human beings by vampire bats seems to be a common phenomenon in several regions of Latin America, but the occurrence of rabies infection among humans bled by vampires, is relatively low.
Marcio A.S. Gonçalves   +2 more
doaj  

Population recovery of an endangered macaw enhances long‐distance seed dispersal via stomatochory

open access: yesOikos, EarlyView.
Seed dispersal by large, mobile vertebrates plays a key role in shaping plant spatial dynamics and community structure. However, how variation in animal population size influences the magnitude and spatial scale of seed dispersal remains poorly understood.
Giulyana A. Benedicto   +2 more
wiley   +1 more source

Trait‐associated pathway links plant diversity to litterfall phenology in a seasonally dry tropical forest

open access: yesOikos, EarlyView.
Phenology plays a central role in regulating energy flow and nutrient cycling, yet remains insufficiently integrated into biodiversity–ecosystem functioning frameworks. This gap is especially relevant in strongly seasonal systems, where community‐wide synchrony in leaf litterfall may arise from either temporal niche differentiation among species or ...
Ana E. Bonato Asato   +14 more
wiley   +1 more source

Reflections on Comparative Teaching in Public Administration

open access: yesPublic Administration and Development, EarlyView.
ABSTRACT This article integrates our scholarly experience of teaching comparative public administration. In doing so, we offer a unique perspective as the co‐authors carry several diverse attributes, among them their countries of origin, current country in which they are teaching, and their academic experience.
Kim Moloney   +6 more
wiley   +1 more source

Electrospun PVA Scaffolds Containing MCM‐41/CNC Nanocomposites for Controlled Drug Release in Wound Dressings

open access: yesPolymer Engineering &Science, EarlyView.
Cellulose nanocrystals extracted from Mauritia flexuosa petiole were combined with MCM‐41 mesoporous silica to create a diclofenac‐loaded hybrid nanocomposite. Incorporation into electrospun PVA scaffolds enabled controlled diclofenac release and high cell viability, highlighting their potential for localized drug delivery.
Karoliny V. Barbosa   +11 more
wiley   +1 more source

Resistance to thiophanate‐methyl and azoxystrobin in Colletotrichum species from Brazilian grapes

open access: yesPest Management Science, EarlyView.
First report of resistance to both quinone outside inhibitor (QoI; azoxystrobin) and methyl benzimidazole carbamate (MBC; thiophanate‐methyl) fungicides in Colletotrichum isolates associated with grapevine in Brazil. Abstract BACKGROUND Grape ripe rot (GRR) caused by Colletotrichum species can cause yield loss in vineyards in Southern and Northeast ...
Daniel Ricardo Maass Steiner   +5 more
wiley   +1 more source

Scale dependence of the marine atmospheric boundary‐layer response to ocean surface‐temperature variability in the EUREC4$$ {\mathrm{EUREC}}^4 $$A region

open access: yesQuarterly Journal of the Royal Meteorological Society, EarlyView.
With a minimal physics model and a high‐resolution fully 3D simulation, we demonstrate that the marine atmospheric boundary layer (MABL) response to sea‐surface temperature (SST) variability displays a dependence on the horizontal scales of motion.
Alessandro Storer   +3 more
wiley   +1 more source

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