Results 31 to 40 of about 804 (141)

A comparative study of resource allocation in Pteridium in different Brazilian ecosystems and its relationship with European studies [PDF]

Brazilian Journal of Biology
Pteridium is a cosmopolitan genus that acts as an invasive species in many parts of the world. Most research on this genus has occurred in Europe, and there is a lack of data on it from South America, in spite of causing considerable conservation ...
ALONSO-AMELOT ME, ALONSO-AMELOT ME, BRADSHAW AD, CARNIER E, DE KROON H, DEN OUDEN J, DM Silva Matos, FAN JW, FCS Tiberio, FRANÇA TN, GHORBANI BJ, GOODWIN BJ, HAMMER Ø, HARTIG K, HOFFMANN WA, HOFFMANN WA, HUBER H, JIMÉNEZ-AMBRIZ G, LAWSON GJ, LE DUC MG, LOWDAY JE, MARRS RH, MARRS RH, MARRS RH, MARRS RH, MARRS RH, MARÇAL WS, MARÇAL WS, MCCARTHY MC, MCCONNAUGHAY KDM, MIATTO RC, MINER BG, MULLER I, MYERS N, NIKLAS KJ, PAKEMAN RJ, PAKEMAN RJ, PAKEMAN RJ, PATERSON S, PEARSALL WH, PEREIRA AC, PIVELLO VR, POTTIER J, REJMANEK M, RH Marrs, RICHARDS CL, RO Xavier, SHIPLEY B, SILVA JF, SILVA MATOS DM, SILVA MATOS DM, SILVA MATOS DM, SILVA USR, STUEFER JF, THOMSON JA, THOMSON JA, WATT AS, WEINER J, YANG Y   +58 more
core   +3 more sources

Alterações anátomo-histopatológicas em ratos submetidos à dieta com extrato de broto de samambaia (Pteridium aquilinum var. arachnoideum) de dois municípios do estado do Paraná Macroscopic and microscopic changes in rats fed on a bracken fern diet (Pteridium aquilinum var. arachnoideum) from different regions of Parana State, Brazil

Arquivo Brasileiro de Medicina Veterinária e Zootecnia, 2005
The carcinogenicity of bracken fern harvest from two regions of Paraná State to induce hematury in rats was studied. In order to do that, 33 Wistar rats were divided in three groups. Groups I and II received an aqueous extract of bracken fern from Londrina-PR or Ibaiti-PR, respectively, in drinking water for 60 days.
G.D. Cruz, A.P.F.R.L. Bracarense, L. Yamasaki, D.E.A. Cortez   +3 more
openaire   +3 more sources

Bovine upper alimentary squamous cell carcinoma associated with bracken fern poisoning: Clinical-pathological aspects and etiopathogenesis of 100 cases. [PDF]

PLoS One, 2018
Upper digestive tract (UDT) cancer is rare in cattle, however in Southern Brazil, the UDT squamous cell carcinomas (SCCs) are relatively common and have been associated with bracken fern consumption and the presence of papillomas.
Faccin TC, Cargnelutti JF, Rodrigues FS, de Menezes FR, Piazer JVM, de Melo SMP, Lautert BF, Flores EF, Kommers GD.   +8 more
europepmc   +2 more sources

Ants associated with fronds of the tropical bracken fern Pteridium esculentum subsp. arachnoideum

Biota Neotropica, 2022
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, Antônio José Mayhé-Nunes, Rodrigo Machado Feitosa, Anderson dos Santos Portugal, Marcelo Guerra Santos   +4 more
openaire   +2 more sources

Who will win where and why? An ecophysiological dissection of the competition between a tropical pasture grass and the invasive weed Bracken over an elevation range of 1000 m in the tropical Andes. [PDF]

PLoS One, 2018
In tropical agriculture, the vigorously growing Bracken fern causes severe problems by invading pastures and out-competing the common pasture grasses. Due to infestation by that weed, pastures are abandoned after a few years, and as a fatal consequence ...
Knuesting J, Brinkmann MC, Silva B, Schorsch M, Bendix J, Beck E, Scheibe R.   +6 more
europepmc   +2 more sources

Proximity and abundance of mother trees affects recruitment patterns in a long‐term tropical forest restoration study

Ecography, Volume 44, Issue 12, Page 1826-1837, December 2021., 2021
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, Leland K. Werden, Miriam San‐José, Juan Abel Rosales, Jeffry Flores, Karen D. Holl   +5 more
wiley   +1 more source

Growth of Tropical Bracken (Pteridium arachnoideum): Response to Weather Variations and Burning [PDF]

Invasive Plant Science and Management, 2010
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, Rütger Rollenbeck, Thorsten Peters, Jörg Bendix, Erwin Beck   +4 more
openaire   +1 more source

Inventorying of the tree fern Genus Cibotium of Sumatra: Ecology, population size and distribution in North Sumatra [PDF]

, 2011
Praptosuwiryo TNg, Pribadi DO, Puspitaningtyas DM, Hartini S (2011) Inventorying the tree fern Genus Cibotium of Sumatra: Ecology, population size and distribution in North Sumatra. Biodiversitas 12: 204-211.
DIDIT OKTA PRIBADI, DWI MURTI PUSPITANINGTYAS, SRI HARTINI, TITIEN NGATINEM PRAPTOSUWIRYO   +3 more
core   +1 more source

Variation in aboveground biomass and necromass of two invasive species in the Atlantic rainforest, southeast Brazil Variação da biomassa e necromassa aérea de duas espécies invasoras na floresta atlântica, sudeste do Brasil

Acta Botânica Brasílica, 2009
This paper describes the variation of the above-ground biomass, necromass, and net above-ground primary production (NAGPP) of two weed species, Panicum maximum Jacquin (Poaceae) and Pteridium arachnoideum (Kaulf.) Maxon.
Rita Cássia Quitete Portela, Dalva Maria Silva Matos, Ludmila Pugliese de Siqueira, Maria Isabel Guedes Braz, Leonardo Silva-Lima, Robert Hunter Marrs   +5 more
doaj   +1 more source

Accounting for multiple ecosystem services in a simulation of land‐use decisions: Does it reduce tropical deforestation?

Global Change Biology, Volume 26, Issue 4, Page 2403-2420, April 2020., 2020
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, Carola Paul, Anja Rammig, Elizabeth Gosling, Patrick Hildebrandt, Fabian Härtl, Thorsten Peters, Michael Richter, Karl‐Heinz Diertl, Luz Maria Castro, Baltazar Calvas, Santiago Ochoa, Liz Anabelle Valle‐Carrión, Ute Hamer, Alexander Tischer, Karin Potthast, David Windhorst, Jürgen Homeier, Wolfgang Wilcke, Andre Velescu, Andres Gerique, Perdita Pohle, Julia Adams, Lutz Breuer, Reinhard Mosandl, Erwin Beck, Michael Weber, Bernd Stimm, Brenner Silva, Peter H. Verburg, Jörg Bendix   +30 more
wiley   +1 more source