Results 51 to 60 of about 1,186 (148)

Lower competition in grasslands and higher facilitation in forests as potential drivers of the higher species richness of calcareous than siliceous communities

Oikos, Volume 2025, Issue 12, December 2025.
We tested the hypothesis that, in calcareous and siliceous ecosystems from the wet temperate climate of southwest France, competition primarily explains differences in community composition and species richness in grasslands but that facilitation is more determinant in forests. In a first experiment, we transplanted, in dry and wet years, grass species
Richard Michalet, Florian Delerue, Pierre Liancourt   +2 more
wiley   +1 more source

Holocene Land‐Use and Climate Forcing of Ombrotrophic Peatland Dynamics in Northwest Estonia

Journal of Geophysical Research: Biogeosciences, Volume 130, Issue 12, December 2025.
Abstract We present a high‐resolution, multi‐proxy record from Mustjärve bog, northwest Estonia, covering the past ∼2,500 years. By integrating paleoecological, historical, and climate data, we evaluate how climate and land use shaped peatland hydrology, vegetation, and carbon dynamics.
Harry Roberts, Luke Andrews, Michał Słowiński, Katarzyna Marcisz, Piotr Kołaczek, Leeli Amon, Siim Veski, Normunds Stivrins, Atko Heinsalu, Mariusz Lamentowicz   +9 more
wiley   +1 more source

Hego Euskal Herrian ustiatutako garo-sailetan aurkitutako makromizetoak [PDF]

Munibe Ciencias Naturales, 2003
En el presente artículo se tratan los macromicetos de los helechales explotados del sur del País Vasco. En estas comunidades dominadas por el helecho (Pteridium aquilinum), se han aportado 29 taxones, de los cuales, según nuestros datos, 6 no están ...
OLARIAGA, I., PASABAN, P.M.
doaj  

First Report of Colletotrichum siamense and Description of Lasiodiplodia adeniicola sp. nov. Causing Leaf Spot on Desert Rose in Brazil

Journal of Phytopathology, Volume 173, Issue 6, November/December 2025.
ABSTRACT In July 2021, desert rose plants were consistently observed with symptoms of brown spots on the leaves, which coalesced and promoted leaf fall. The causal agent of the disease was unknown. This study aimed to identify the pathogen responsible for the symptoms through morphological and molecular characterisation, as well as pathogenicity tests.
Alan Izaías dos Santos Carvalho, Beatriz Meireles Barguil, Kedma Silva Matos, Enayra Silva Sousa, Elys Rejanne Marques Cruz Araújo, José Evando A. Beserra Jr.   +5 more
wiley   +1 more source

PRIMER REPORTE DE Pteridium caudatum (DENNSTAEDTIACEAE) EN LA ISLA DE PROVIDENCIA, COLOMBIA

Acta Biológica Colombiana, 2011
Se reporta por la primera vez la presencia del helecho invasor Pteridium aquilinum(L.) Kunh en la Isla de Providencia, Colombia. La especie ha sido encontrada confinada como planta decorativa en jardines y patios, como silvestre en la localidad El Pico ...
Brigitte Gavio, Alerxandra Tobar-Vargas
doaj  

Mensuration of sialic acid seric level in nelore cattle exposed and nonexposed to bracken fern (Pteridium aquilinum) /
Aferição da concentração sérica de ácido siálico em novilhas da raça nelore expostas e não expostas à samambaia (Pteridium aquilinum)

Semina: Ciências Agrárias, 2008
The Pteridium aquilinum is one toxic plant present in several countries of the world. The chronic ingestion causes diseases to livestock with negative economics repercussion.
Wilmar Sachetin Marçal, Marcos Coelho de Carvalho, Nelson Parizotto Junior, Mariana Itimura de Camargo   +3 more
doaj   +1 more source

Bovine papillomavirus type 2 in enzootic haematuria aetiology/
Papilomavírus bovino tipo 2 na etiologia da hematúria enzoótica bovina

Semina: Ciências Agrárias, 2002
Bovine enzootic haematuria (EH) occurs worldwide and is endemic in regions with bracken fern (Pteridium aquilinum) infested grassland. EH is chronic disease that is characterized by clinical signs of intermitent haematuria, anemia and progressive ...
Amauri Alcindo Alfieri, Alice Fernandes Alfieri, Antônio Carlos Faria dos Reis, Sheila Rezler Wosiacki   +3 more
doaj   +1 more source

Plantas tóxicas para ruminantes do Sudoeste de Goiás

Ciência Rural, 2014
Com o objetivo de verificar quais são as plantas incriminadas como tóxicas para ruminantes do Sudoeste de Goiás, foram realizadas 108 entrevistas com produtores rurais, médicos veterinários, zootecnistas e agrônomos de 18 municípios da região.
Fabiano José Ferreira de Sant'Ana, Janildo Ludolf Reis Junior, Argemiro Pereira Freitas Neto, Carlos Alberto Moreira Junior, Valcinir Aloisio Scalla Vulcani, Rogério Elias Rabelo, Juliano Pereira Terra   +6 more
doaj   +1 more source

Cianogênese em esporófitos de pteridófitas avaliada pelo teste do ácido pícrico Cyanogenesis in sporophytes of pteridophytes evidenced by the picric acid test

Acta Botânica Brasílica, 2005
Os glicosídeos cianogênicos são substâncias de defesa encontradas em alguns vegetais, capazes de liberar ácido cianídrico por meio de reações de hidrólise.
Marcelo Guerra Santos, Carlos Eduardo Martins Carvalho, Alphonse Kelecom, Maria Luiza Ribeiro da Costa Ribeiro, Camila Vaz Chagas de Freitas, Leonardo Moreira da Costa, Livia Viana de Godoy Fernandes   +6 more
doaj   +1 more source

Manometric studies of bracken [Pteridium aquilinum (L.) Kuhn] thiaminase [PDF]

Biochemical Journal, 1958
RESP ...
openaire   +2 more sources