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Registros recuperados: 35 | |
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Faure, Guy; D'Hotel, Elodie Maitre; le Coq, Jean-Francois; Saenz, Fernando. |
Small holders' agriculture is currently facing new stakes due to State's withdrawal from agricultural support and to higher market requests for producing agricultural products. Different coordination mechanisms can be observed inside the supply chains involving farmers, farmers' organizations, and others stakeholders. They depend on the nature of the product, the characteristics of the stakeholders involved, the technical specifications related to the transactions, and the institutional environment. Relying on a comparative case study methodology, the paper analyzes the consequences of different coordination mechanisms on inclusion or exclusion of small farmers in the northern region of Costa Rica. Market coordination could be an efficient way to integrate... |
Tipo: Conference Paper or Presentation |
Palavras-chave: Supply chain; Small holders; Farmers; Contracting; Coordination; Costa Rica; Agribusiness. |
Ano: 2007 |
URL: http://purl.umn.edu/7943 |
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Wehrtmann,Ingo S.; Magalhães,Célio; Hernáez,Patricio; Mantelatto,Fernando L.. |
Freshwater crabs are an important component of the fauna of limnic environments, and out of the two true freshwater crab families present in the Neotropics, Pseudothelphusidae is the most diverse. Considering the lack of information regarding reproductive features of neotropical freshwater crabs, we studied, for the first time, the fecundity and the presence of juveniles carried by females of two pseudothelphusids from the Amazon region - Kingsleya latifrons (Randall, 1840) and Kingsleya ytupora Magalhães, 1986 - and one from Central America - Potamocarcinus magnus (Rathbun, 1896). The two Kingsleya species produced relatively few (56-114) and large eggs (1.9-3.7 mm), typical for species with an abbreviated or direct development. Recently produced eggs... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Brazil; Costa Rica; Freshwater crabs; Direct development; Fecundity; Parental care. |
Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702010000600019 |
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Santos,Allan Paulo Moreira; Takiya,Daniela Maeda; Nessimian,Jorge Luiz. |
Costatrichia Mosely, 1937 is a Neotropical genus included in the subfamily Leucotrichiinae. Previously, this genus included 14 described species, two from Brazil and eight from Costa Rica. Based on recent specimens collected with light traps in the Brazilian Amazon and Costa Rica, we describe two new species: Costatrichia ipixuna sp. nov. from the state of Amazonas, Brazil (C. lodora group) and C. falsa sp. nov. from Puntarenas, Costa Rica (C. simplex group). Costatrichia ipixuna sp. nov. is most similar to C. noite Angrisano, 1995, but can be distinguished by the shallower U-shaped incision on posterior margin of sternum VIII, by the absence of the lateral projection of the same segment bearing very long setae, and by the phallus with a pair of spine-like... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Amazon Forest; Costa Rica; Costatrichia ipixuna sp. nov.; Costatrichia falsa sp. nov.; Microcaddisflies. |
Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702013000400012 |
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CHINCHILLA-CARMONA,MISAEL; VALERIO-CAMPOS,IDALIA; SÁNCHEZ-PORRAS,RONALD; MORA-CHAVES,VÍCTOR; BAGNARELLO-MADRIGAL,VANESSA; MARTÍNEZ-ESQUIVEL,LAURA; GONZÁLEZ-PANIAGUA,ANTONIETA; VANEGAS,JUAN CARLOS. |
Se realizó una evaluación in vivo de la actividad antimalárica de las hojas, flores, frutos, corteza y raíz de 25 plantas de la Reserva Biológica Alberto Manuel Brenes (REBAMB), situada en San Ramón, Alajuela, Costa Rica. Las plantas estudiadas fueron Aphelandra aurantiaca (Scheidw.) Lindl., Aphelandra tridentata Hemsl. (Acanthaceae), Xanthosoma undipes (K. Koch & C.D. Bouché) K. Koch. (Araceae), Iriartea deltoidea Ruiz & Pav. (Arecaceae), Neurolaena lobata (L.) Cass. (Asteraceae), Lonchocarpus pentaphyllus (Poir.) Kunth ex DC., Pterocarpus hayesii Hemsl., Senna papillosa (Britton & Rose) H.S. Irwin & Barneby., Cinnamomum chavarrianum (Hammel) Kosterm. (Fabaceae), Nectandra membranacea (Sw.) Griseb., Persea povedae W.C.... |
Tipo: Journal article |
Palavras-chave: Antimaláricos; Costa Rica; In vivo; Plantas; Plasmodium berghei. |
Ano: 2011 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-078X2011000100009 |
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Moure,Jesus S.. |
Friese (1916) described Parapsaenythia flavescens, changing the name to P. argentina. This species is a Colletidae, Paracolletini and belongs in Eulonchopria Brèthes, 1909, and a new combination Eulonchopria flavescens (Friese, 1916) is proposed. The second species apparently was not described: it is a Panurgini and here described as Friesina carinulata gen.n. and sp.n.. At Berlin Museum Psaenythia bernardinensis syn.n., decribed by Strand (1910), from Paraguay, is the male of' Eulonchropiaparaguayen-sis Brèthes, 1909, syn.n. |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Eulonchopria; Paracolletini; Friesina; Panurgini; Costa Rica; Psaenythia bernardinensis; Eulonchopria psaenythiodes. |
Ano: 1999 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751999000500005 |
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Registros recuperados: 35 | |
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