Results 41 to 50 of about 3,245 (114)

Bird perches and artificial bat roosts increase seed rain and seedling establishment in tropical bracken‐dominated deforested areas

Restoration Ecology, Volume 32, Issue 7, September 2024.
Tropical forests are being reduced by human activities. The use of fire for agricultural expansion generates areas dominated by the bracken fern Pteridium, where forest regeneration is slow. This may be caused by seed limitation, especially of animal‐dispersed seeds, due to the absence of seed dispersers from the forest in deforested areas, calling for
Cesar Mayta, Cecilia L. López, Mariana Villegas, Luis F. Aguirre, Isabell Hensen, Silvia C. Gallegos   +5 more
wiley   +1 more source

Systematic review and best practices for drone remote sensing of invasive plants

Methods in Ecology and Evolution, Volume 15, Issue 6, Page 998-1015, June 2024.
Abstract Drones have emerged as a cost‐effective solution to detect and map plant invasions, offering researchers and land managers flexibility in flight design, sensors and data collection schedules. A systematic review of trends in drone‐based image collection, data processing and analytical approaches is needed to advance the science of invasive ...
Kunwar K. Singh, Thilina D. Surasinghe, Amy E. Frazier   +2 more
wiley   +1 more source

Pteridófitas da Mata do Estado, município de São Vicente Férrer, estado de Pernambuco, Brasil: Cyatheaceae, Dennstaedtiaceae

Revista de Biologia Neotropical, 2007
O presente trabalho trata da pteridoflora da Mata do Estado, localizada no município de São Vicente Férrer, Zona da Mata norte do estado de Pernambuco.
Marcio Roberto Pietrobom, Iva Carneiro Leão Barros   +1 more
doaj   +1 more source

Habitat differences in seed‐dispersing vertebrates indicate dispersal limitation in tropical bracken‐dominated deforested areas

Biotropica, Volume 56, Issue 3, May 2024.
Forest regeneration in tropical bracken‐dominated deforested areas is mainly hindered by dispersal limitation. We found differences in species composition of seed‐dispersing birds and bats between the forest and bracken‐dominated areas, which could be one of the main causes of dispersal limitation in forest regeneration in tropical bracken‐dominated ...
Silvia C. Gallegos, Cesar Mayta, Mariana Villegas, Guido M. Ayala, Kazuya Naoki, Josef Rechberger, Valeria Rojas, María E. Viscarra, Nuria Bernal‐Hoverud, Mauricio Espejo, Isabell Hensen   +10 more
wiley   +1 more source

Systematic reduction in seed rain of large‐seeded and endozoochorous species in pastures compared to forests along a tropical elevational gradient

Applied Vegetation Science, Volume 27, Issue 2, April/June 2024.
By analyzing variation in seed rain among old‐growth montane forests and livestock pastures along a 2,000 m elevational gradient in the tropical Andes of southern Ecuador, this study reveals that large seeds and endozoochorous species are less prevalent in seed rain from pastures compared to seed rain from forests at the same elevation.
Diana Carolina Acosta‐Rojas, Maciej K. Barczyk, Carlos Iván Espinosa, Boris A. Tinoco, Eike Lena Neuschulz, Matthias Schleuning   +5 more
wiley   +1 more source

Recognition of two morpho-types in eastern South American brackens (Pteridium—Dennstaedtiaceae—Polypodiopsida)

, 2014
In this work we propose the recognition of two well defined morpho-types of Pteridium from eastern South America: P. arachnoideum subsp. arachnoideum s. str., wide-spread from north-eastern Brazil southwards to north-eastern Argentina and Uruguay, and P.
De Moraes, Pedro L. R., Pedro B. Schwartsburd, Karina L. B. Lopes-mattos, Pedro L. R. De Moraes, De Moraes, Pedro L. R. [UNESP], Lopes-Mattos, Karina L. B., Schwartsburd, Pedro B.   +6 more
core   +1 more source

BANCO DE SEMENTES DO SOLO PARA USO NA RECUPERAÇÃO DE MATAS CILIARES DEGRADADAS NA REGIÃO NOROESTE FLUMINENSE

Ciência Florestal, 2018
The objective of this study was to characterize the germination and species diversity of the seed bank of a fragment of riparian forest located at the Experimental Station of PESAGRO-RJ, in Itaocara city, RJ state, and evaluate its potential use in ...
Tiago José Freitas de Oliveira, Deborah Guerra Barroso, Aluísio Granato de Andrade, Ismael Lourenço Jesus Freitas, Reynaldo Tancredo Amim   +4 more
doaj   +1 more source

RESULTADOS LABORATORIAIS COMPARATIVOS EM FÊMEAS NELORE DE DIFERENTES CATEGORIAS PROVENIENTES DE FAZENDAS COM E SEM A PRESENÇA DE Pteridium arachnoideum NAS PASTAGENS [PDF]

, 2016
A Pteridium arachnoideum, anteriormente classificada como Pteridium aquilinum, popularmente conhecida por samambaia, é um dos vegetais tóxicos mais preocupantes em vários países, incluindo o Brasil.
Marçal, Wilmar Sachetin, Watanabe, André Hiroshi Quadros   +1 more
core   +2 more sources

Integração de técnicas de manejo para a restauração de restinga superdominada por Pteridium esculentum subsp. arachnoideum (Dennstaedtiaceae) [PDF]

, 2022
TCC (graduação) - Universidade Federal de Santa Catarina, Centro de Ciências Biológicas, Ciências Biológicas.Espécies superdominantes são espécies nativas cujas populações se proliferam desproporcionalmente após distúrbios de origem antrópica, de modo a ...
Silva, Gabriela Moraes da
core  

Enzootic hematuria in cattle from Northeastern Brazil

Brazilian Journal of Veterinary Pathology, 2016
Two outbreaks (A and B) of bovine enzootic hematuria in Bahia in the period 2012-2013 were described. In the outbreak A, a cow was necropsied and 27 cattle were slaughtered in a slaughterhouse, and the second outbreak two cattle were necropsied.
Suélen D. S. Reis, Juliana T. S. A. Macêdo, Ricardo S. Oliveira, Tiago C. Peixoto, Margareth M. Ferreira, André Luís Gasper, Pedro M. O. Pedroso   +6 more
doaj   +1 more source