Results 91 to 100 of about 804 (141)

Extracción, identificación, cuantificación de Ptaquilósido en leche de ganado vacuno que pastorea en zonas donde crece Pteridium arachnoideum [PDF]

open access: yes, 2013
El presente trabajo consiste en la evaluación de la presencia de ptaquilósido en muestras de leche de ganado vacuno que pastorea la zona de Tronador Grande Provincia de Bolívar, en donde se desarrolla la especie invasiva Pteridium arachnoideum.
Rosero Negrete, Danny Margarita
core  

Weak allelopathic effects of bracken fern (Pteridium esculentum subsp. arachnoideum) on early life stages of native tree species in a Neotropical montane forest

open access: yesPlant Ecology
Abstract The allelopathic effect of Pteridium ferns (hereafter bracken) is considered an important factor hindering forest recovery. We examined the effects of bracken allelopathy on seed germination, seedling emergence, survival, and relative growth rate (RGR) of two native tree species, Morella pubescens and Vismia plicatifolia, in a tropical
Yamil Maidana-Tuco   +3 more
openaire   +1 more source

Comparing the success of active and passive restoration in a tropical cloud forest landscape: A multi-taxa fauna approach. [PDF]

open access: yesPLoS One, 2020
Díaz-García JM   +4 more
europepmc   +1 more source

Los Pteridófitos de un bosque subandino en el municipio de Albán, Cundinamarca (Colombia)

open access: yesActa Biológica Colombiana, 2004
Se presenta el tratamiento taxonómico de los helechos y plantas afines de un bosque subandino localizado en el municipio de Albán, al occidente de Cundinamarca, entre 1.900 y 2.100 m de altitud.
Luz Amparo Triana Moreno   +1 more
doaj  

Validação de método e determinação de Ptaquilosídeo e Pterosina B por cromatografia líquida de alta eficiência em samambaias e no leite de vacas [PDF]

open access: yes, 2018
The species Pteridium spp. is a poisonous plant known as bracken fern. The existing species in Brazil are: P. arachnoideum and P. caudatum. The fern has already been recorded in practically all Brazilian states.
Debora da Silva Freitas Ribeiro
core  

Detecting Pteridium arachnoideum and Tithonia diversifolia in a Multiclass Land‐Cover Framework in the Cerrado: A Deep Learning Time‐Series Benchmark With Spatial Cross‐Validation

open access: yesTransactions in GIS
ABSTRACT This study presents the first deep‐learning time‐series benchmark for detecting two encroaching species in the Brazilian Cerrado: the native super‐dominant fern Pteridium arachnoideum and the invasive alien shrub
Leandro de Arruda Bruno   +3 more
openaire   +1 more source

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