Results 31 to 40 of about 274 (128)
Ants associated with fronds of the tropical bracken fern Pteridium esculentum subsp. arachnoideum
Abstract: Pteridium is a cosmopolitan genus of ferns that possess nectaries on its fronds (fern leaves), thereby attracting ants. Foliar (or extrafloral) nectaries are nectar-producing glands that are not related to pollination, but rather attract ants and other arthropods.
Isabella Rodrigues Lancellotti +4 more
openaire +2 more sources
Remnant trees and forest fragments in agricultural landscapes can be important sources of propagules to facilitate forest recovery. However, many studies simply quantify forest cover in the surrounding landscape as a percentage, with little attention given to species composition, and subsequently fail to detect an effect on recruitment patterns.
Rakan A. Zahawi +5 more
wiley +1 more source
Growth of Tropical Bracken (Pteridium arachnoideum): Response to Weather Variations and Burning [PDF]
AbstractThe ecology of tropical bracken, which occurs in tropical regions, is not well known. We studied its response to weather variations and burning in the south Ecuadorian Andes, where this weed had already overgrown 40% of the pastureland. In field observations, a constant 1 : 1 ratio of emerging and dying leaves suggested limitation of frond ...
Kristin Roos +4 more
openaire +1 more source
Fern flora of Viçosa, Minas Gerais State, Brazil: Dennstaedtiaceae, Lindsaeaceae and Saccolomataceae
As part of an ongoing project treating the ferns and lycophytes from the region of Viçosa, Minas Gerais State, Brazil, we here present the taxonomic treatment of the early divergent lineages of the leptosporangiate ferns: the families Dennstaedtiaceae ...
Nelson Túlio Lage Pena +1 more
doaj +1 more source
Our simulation of decision‐making under uncertainty shows that accounting for multiple ecosystem services (ES) in addition to socio‐economic objectives has heterogeneous effects on tropical land‐use allocation. It saves some natural forest if the initial natural forest share is below 38%, and can stop deforestation once the natural forest share drops ...
Thomas Knoke +30 more
wiley +1 more source
Intercellular protuberances (IPs) are projections on the cell surface and have been reported for families of ferns, Gymnosperms, and Angiosperms. Data on the type, chemical composition, and distribution of these structures among vascular plants are ...
Ivan Becari-Viana +2 more
doaj +1 more source
Control of bracken by promoting regeneration of woody vegetation in the Yucatan Peninsula
In the tropical dry forest of the Yucatan Peninsula in southern Mexico, as in many parts of the Neotropics, deforested areas have been colonized by the highly competitive invasive bracken (Pteridium arachnoideum), which inhabits naturally regenerated and
Samuel Israel Levy-Tacher +1 more
doaj +1 more source
La restauración activa y la restauración pasiva son estrategias utilizadas para recuperar paisajes forestales. Pocos estudios han evaluado la recuperación de la fauna comparando diferentes estrategias de restauración de la misma edad en un paisaje ...
Juan M. Díaz García +2 more
doaj +1 more source
Although fire occurrence plays a central role in the dominance of the super-dominant bracken fern Pteridium arachnoideum in Neotropical forests, it is unclear whether this applies to the Brazilian savanna (Cerrado), which vegetation is naturally adapted to fire. We assessed fire effects on the aboveground biomass of P.
Fernanda C.S. Tiberio +3 more
openaire +1 more source
La restauración ecológica procura restablecer las funciones ecosistémicas y gestionar los recursos naturales, por esta razón debe hacerse monitoreo para conocer la dinámica de las especies sembradas y de la vegetación que va formándose.
Leonardo González +3 more
doaj +1 more source

