Results 41 to 50 of about 3,176 (128)

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

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  

Flora of Espírito Santo: Dennstaedtiaceae

Rodriguésia
As part of the Flora of Espírito Santo project, it is presented the taxonomic treatment of Dennstaedtiaceae, with keys, descriptions, illustrations, and list of specimens examined.
Pedro B. Schwartsburd
doaj   +1 more source

Taxonomic Status of Diploid Southern Hemisphere Brackens (Pteridium: Dennstaedtiaceae) [PDF]

, 2012
Diploid bracken ferns separate morphologically, genetically and reproductively into a predominantly northern hemisphere clade comprising 11 subspecies placed in Pteridium aquilinum (L.) Kuhn and a predominantly southern hemisphere Austral/South American ...
Thomson, John, Thomson, John Alexander
core   +1 more source

Trait‐based species selection for restoration: A case study from tropical landscapes dominated by bracken

Journal of Applied Ecology, Volume 63, Issue 1, January 2026.
Our results can be used by stakeholders to select the species best suited for active restoration projects in bracken‐dominated areas throughout the tropical region. Furthermore, our trait‐based approach, which considers seedling performance in disturbed areas, can serve as a guide for species selection in restoration programmes in other disturbed ...
Silvia C. Gallegos, Cecilia L. López, Kazuya Naoki, Andrea Soliz, Alfredo F. Fuentes, Cesar Mayta, Leslie Cayola, J. Sebastian Tello, Isabell Hensen   +8 more
wiley   +1 more source

Flora das cangas da Serra dos Carajás, Pará, Brasil: Dennstaedtiaceae

Rodriguésia
Resumo Este estudo trata dos táxons de Dennstaedtiaceae encontrados nas formações ferríferas da Serra dos Carajás, estado do Pará, com descrições, ilustrações, distribuição geográfica e comentários.
Alexandre Salino, André Jardim Arruda
doaj   +1 more source

Non‐native invasive plants in tropical dry forests: a global review of presence, impacts, and management

Restoration Ecology, Volume 33, Issue 1, January 2025.
Tropical dry forests (TDF) are among the most‐threatened terrestrial ecosystems, experiencing ongoing conversion to agricultural fields, pasture, and human settlements. Human disturbances are often precursors to invasion of ecosystems by non‐native species, but research on invasion patterns in tropical ecosystems is sparse, and there is no ...
Nora G. Hardy, Sara E. Kuebbing, Marlyse C. Duguid, Mark S. Ashton, Karam C. Sheban, Seth E. Inman, Meredith P. Martin   +6 more
wiley   +1 more source

Conservation status of three rare endemic Phaseolus bean (Leguminosae, Phaseoleae) species of Costa Rica

Nordic Journal of Botany, Volume 2024, Issue 12, December 2024.
We aimed at an inventory of all populations of wild Phaseolus (bean) species in Costa Rica, in relation to future plant breeding. During the field work in 2003–2018, three new and rare bean species (i.e. P. albicarminus, P. angucianae and P. hygrophilus) were found in different montane forest habitats which originally occupy a small acreage.
Daniel G. Debouck, Néstor Chaves Barrantes, Rodolfo Araya Villalobos   +2 more
wiley   +1 more source

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

Achados clínico-patológicos e métodos de controle da intoxicação por Pteridium (aquilinum) arachnoideum [PDF]

, 2015
A infestação de pastagens por populações de Pteridium arachnoideum é um problema que afeta a pecuária, em diversas partes do mundo. Os efeitos deletérios da infestação pela planta sobre a bovinocultura são manifestados na forma de mortalidades e de ...
Boabaid, Fabiana M.
core   +1 more source