Untitled Document


Enter your search terms (e.g., carbon cycle), or get help.

   
Ingrese los términos de búsqueda (e.g., ciclo de carbon), u obtenga ayuda.


1.+ 72% Produccion y uso de Erythrina: manual de campo. [USR]
2.+ 72% Biotechnology for developing countries. The case of the Central American isthmus. [USR]
3.+ 70% Aggressiveness and damage potential of Central American and Caribbean populations of Radopholus spp. in banana. [USR]
4.+ 70% Manejo sustentable de un bosque natural tropical en Costa Rica: definicion de un plan operacional y resultados de su aplicacion. [USR]
5.+ 70% A GIS assessment of deforestation in the Coto Brus valley of Costa Rica. [USR]
6.+ 70% Restoring hope in the clouds. [USR]
7.+ 70% Les Phalangopsidae neotropicaux (Orthoptera: Grylloidea) II. Le groupe des Aclodae. [USR]
8.+ 70% Occurrence of propanil resistance in Echinochloa colona in Central America. [USR]
9.+ 70% Revision of the Mesoamerican species of Airosimus Howden (Coleoptera: Curculionidae). [USR]
10.+ 70% Conservacion voluntaria en Costa Rica: Aportes de la sociedad civil para el desarrollo sostenible. [USR]
11.+ 68% Evaluacion de lineas de Catimor de la serie T-8600; en el canton de San Carlos, Costa Rica. [USR]
12.+ 68% Metodologia para estimar la extraccion de las capas externas del arroz integral durante la etapa de beneficiado. [USR]
13.+ 68% Evaluacion fitoquimica de la parte aerea de Verbena litoralis HBK. [USR]
14.+ 68% Arieianal, a prenylated benzoic acid from Piper arieianum. [USR]
15.+ 68% The effect of a teak (Tectona grandis) plantation on the establishment of native species in an abandoned pasture in Costa Rica. [USR]
16.+ 68% Disparate phylogeographic patterns of molecular genetic variation in four closely related South American small cat species. [USR]
17.+ 68% Catalogue of Saphenista Walsm. (Lepidoptera, Tortricidae) with description of new species. [USR]
18.+ 68% Nocturnality and species survival. [USR]
19.+ 68% Evaluating policies for sustainable land use: a sub-regional model with farm types in Costa Rica. [USR]
20.+ 68% Epiphytic biomass and nutrient status of a Colombian upper montane rain forest. [USR]
21.+ 68% Policies affecting forests and people: ten elements that work. [USR]
22.+ 68% Balance hidrico de la subcuenca del Rio Sarai. [USR]
23.+ 68% Land-use choice and forest patches in Costa Rica. [USR]
24.+ 68% Identificacion de alternativas para el manejo integral de los bosques privados en la zona de Monteverde, Cordillera de Tilaran. [USR]
25.+ 68% Chemical attractants for Central American felids. [USR]
26.+ 68% Functions of the male genitalic surstyli in the Mediterranean fruit fly, Ceratitis capitata (Diptera: Tephritidae). [USR]
27.+ 68% Remote sensing of watershed characteristics in Costa Rica. [USR]
28.+ 66% Life history consequences of feeding versus non feeding in a facultatively non feeding toad larva. [USR]
29.+ 66% Evaluacion del patron de distribucion del sistema radical de la palma aceitera (Elaeis guineensis). [USR]
30.+ 66% Saving forests, protecting people?: environmental conservation in Central America. [USR]
31.+ 66% Sea turtle conservation training course. [USR]
32.+ 66% Geographic variation in the yellow-billed cacique, Amblycercus holosericeus, a partial bamboo specialist. [USR]
33.+ 66% Mosquito studies (Diptera, Culicidae). XXXV. The new sabathine genus Johnbelkinia and a preliminary reclassification of the composite genus Trichoprosopon. [USR]
34.+ 66% Avicennia germinans (L.) Stearn. [USR]
35.+ 66% Classification of the Blattaria as indicated by their wings (Orthoptera). [USR]
36.+ 66% Mosquito studies (Diptera, Culicidae) XX. The Terrens group of Aedes (Finlaya). [USR]
37.+ 66% New World Limnichinae IX: A revision of neotropical Byrrhinus Motschulsky (Coleoptera: Dryopoidea: Limnichidae). [USR]
38.+ 66% Chiropterophily: on bat-flowers and flower bats. [USR]
39.+ 66% The Florida bonneted bat, Eumops floridanus (Chiroptera: Molossidae): distribution, morphometrics, systematics, and ecology. [USR]
40.+ 66% Physiological and morphologicl basis of shade tolerance in rain forest understory palms. [USR]
41.+ 66% The changing context of forest protection: investigating the influence of socioeconomic change on forest regrowth in the Guanacaste Conservation Area, Costa Rica. [USR]
42.+ 66% Forests of hope: stories of regeneration. [USR]
43.+ 66% Principales enfermedades que afectan a las abejas meliferas. [USR]
44.+ 66% Biomass, productivity and density of the seagrass Thalassia testudinum at three sites in Cahuita National Park, Costa Rica. [USR]
45.+ 66% The link between cloud forest conservation and community benefit: The roles of Resplendent Quetzal (Pharomachrus mocinno) and Aguacatillo (Persea caerulea). [USR]
46.+ 66% Bosques como fuente de desarrollo socioeconomico: el papel de la sociedad civil en cuatro casos en America Latina. [USR]
47.+ 66% Cambios en la estructura fina de las celulas de cloro y prolactina en Dormitator latifrons R. (Pisces: Eleotridae) durante adaptacion osmotica. [USR]
48.+ 66% Seeing the people behind the trees [studien zu Waldnutzung, Ressourcenmanagement und Naturschutz in Asien, Afrika und Zentralamerika]. [USR]
49.+ 66% Ultrastructural alterations in mouse capillary blood vessels after experimental injection of venom from the snake Bothrops asper (Terciopelo). [USR]
50.+ 66% The Rio San Juan. [USR]
51.+ 66% The spider genus Tinus (Pisauridae). [USR]
52.+ 66% Noctuid moths of the American genus Eusceptis Hubner. [USR]
53.+ 66% La sensibilidad economica de las actividades forestales a cambios que afectan el manejo forestal. [USR]
54.+ 66% Climatic sensitivity of wood in a dry tropical forest in Costa Rica. [USR]
55.+ 66% Abundancia relativa de Stomoxys calcitrans (L.) (Diptera: Muscidae) en seis localidades del Pacifico Sur de Costa Rica. [USR]
56.+ 66% Determinacion de la concentracion de ureidos en tres leguminosas fijadoras de nitrogeno: soya, frijol y mani. [USR]
57.+ 66% Estudio de la dinámica del bosque seco tropical a través de parcelas permanentes de muestreo en el Parque Nacional Palo Verde, Bagaces, Guanacaste, Costa Rica. [USR]
58.+ 66% Migratory birds and the spread of West Nile. [USR]
59.+ 66% Informe de Costa Rica para la implementacion de la Convencion de Las Naciones Unidas de Lucha contra la Desertificacion (UNCCD). [USR]
60.+ 64% Species Image Page [DATA]
61.+ 64% Estrategias para el control de los fenomenos torrenciales y la ordenacion sustentable de las aguas, suelos y bosques de las cuencas de montana. [USR]
62.+ 64% Analisis del crecimiento y de la absorcion de nutrimentos en tomate (Lycopersicon esculentum Mill.) en Alajuela. [USR]
63.+ 64% Land trends and sustainability in Latin American agriculture. [USR]
64.+ 64% Marginellidae (Mollusca: Neogastropoda) from the Galapagos Islands and Cocos Island. [USR]
65.+ 64% Los nombres comunes de las plantas en Costa Rica. [USR]
66.+ 64% Use of oxen in logging operations in rural areas of Costa Rica. [USR]
67.+ 64% Descripcion de la perdida de frescura del pescado por metodo organoleptico en especies costarricenses de exportacion. [USR]
68.+ 64% Wuchsformuntersuchungen im Paramo Costa Ricas: IV. Untersuchungen an Senecio- und Hypericum-Arten. [USR]
69.+ 64% Fire in a tropical dry forest of Central America: A natural part of the disturbance regime? [USR]
70.+ 64% Factores que Determinan el Establecimiento y Distribución de Laguncularia racemosa en Ambientes de Alta Sedimentación en la Costa Pacífica de Costa Rica [USR]
71.+ 64% Growth, foliar and nutrient status of Terminalia amazonia planted in southwestern Costa Rica. [USR]
72.+ 64% New synonymy and new species of American bark beetles (Coleoptera: Scolytidae). Part III. [USR]
73.+ 64% Efecto de cuatro fuentes energeticas sobre la produccion de leche de vacas en pastoreo suplementadas con follaje de poro (Erythrina poeppigiana (Walpers) O.F. Cook). [USR]
74.+ 64% Pago por servicios ambientales en Costa Rica. [USR]
75.+ 64% GAP analysis in Costa Rica: overview of an ongoing project. [USR]
76.+ 64% Consideraciones sobre el manejo del recurso. [USR]
77.+ 64% Evaluating land use at the sub-regional level in the Atlantic zone of Costa Rica, considering biophysical land potentials. [USR]
78.+ 64% Systematic and ecological studies of Central American Annonaceae. [USR]
79.+ 64% A review of the leafhopper genus Nielsonia Young with descriptions of new species (Homoptera: Cicadellidae: Cicadellinae). [USR]
80.+ 64% Tropical moist forest restoration on agricultural land in Latin America. [USR]
81.+ 64% Determinacion de recursos con potencial interpretativo de los sectores y senderos del Jardin Botanico Lankester, Cartago, Costa Rica. [USR]
82.+ 64% Analisis del crecimiento y fenologia del maiz (Zea mays L. c.v. Tuxpeno) en un cultivo en callejones con poro (Erythrina Poeppigiana) (Walpers) O.F. Cook, plantado en cuatro arreglos espaciales. [USR]
83.+ 64% Aspectos agroecologicos del cultivo de pimienta (Pipper nigrun L.) en Costa Rica. [USR]
84.+ 64% Notes on density dependence in Welfia georgii Wendl. ex Burret (Palmae) a lowland rainforest species in Costa Rica. [USR]
85.+ 64% Schlussel der mir bekannten Cephalolia - Arten (Col. Chrys.) 65. Beitrag zur Kenntnis der Hispinen. [USR]
86.+ 64% Trees, people and power: social dimensions of deforestation and forest protection in Central America. [USR]
87.+ 64% A new Xanthodirphia Michener (Lepidoptera, Saturniidae, Hemileucinae) from Costa Rica. [USR]
88.+ 64% Conservation for development: success stories from Central America. [USR]
89.+ 64% Spatial and temporal variability of nitrogen oxide and methane fluxes from a fertilized tree plantation in Costa Rica. [USR]
90.+ 64% Conus mahogani (Reeve, 1843). The first specimen from Cocos Island, Costa Rica. [USR]
91.+ 64% Rhizoglyphus costarricensis spec. nov. (Acari: Acaridae) asociado con el dano en semilla de arroz (Oryza sativa L.) en Costa Rica. [USR]
92.+ 64% Population studies on dominant and abundant tree species in the montane tropical rain forests of the Biological Reserve North of San Ramon (Sierra de Tilaran, Costa Rica). [USR]
93.+ 64% Notes concerning some moths described by William Schaus in 1915 (Lepidoptera). [USR]
94.+ 64% Two species of Synhimantus (Dispharynx) Railliet, Henry and Sisoff, 1912 (Nematoda: Acuarioidea: Acuariidae), in passerine birds from the Area de Conservacion Guanacaste, Costa Rica. [USR]
95.+ 64% Electric resistance as a measure of tree water status during seasonal drought in a tropical dry forest in Costa Rica. [USR]
96.+ 64% Financing environmental projects: landfill gas energy recovery at the Rio Azul landfill, San Jose metropolitan area, Costa Rica. [USR]
97.+ 64% Directorio de bases de datos de Costa Rica. [USR]
98.+ 64% The effectiveness of plus-tree selection for yield. [USR]
99.+ 64% Efecto de tres niveles de vinaza y tres epocas de aplicacion sobre las propiedades quimicas del suelo y rendimiento del maiz (Zea mays L.) en un suelo ustic humitropept. [USR]
100.+ 64% Taller de Erosion de Suelos; Memoria. Heredia. CR. 22-24 Jul., 1991. [USR]
101.+ 64% Sky Walk-Sky Trek: A successful community project in the mountains of Monteverde, Costa Rica. [USR]
102.+ 64% Acaros fitoparasitos asociados al cultivo del mango (Mangifera indica L.) en Costa Rica. [USR]
103.+ 62% Potential consequences of extinction of frugivorous birds for shrubs of a tropical wet forest. [USR]
104.+ 62% Studies of neotropical caddisflies LV - Trichoptera of Trinidad and Tobago. [USR]
105.+ 62% Ecological succession in the Valle del General, Costa Rica. [USR]
106.+ 62% The composition and properties of eight gum exudates (Leguminosae) of American origin. [USR]
107.+ 62% Male competition in a Wandering spider (Cupiennius getazi, Ctenidae). [USR]
108.+ 62% Determinacion del contenido de humedad en granos de cafe (Coffea arabica L.) con los medidores Motomco 919 y Tecator P25. [USR]
109.+ 62% Behavioral sampling in the field: Continuous focal versus focal interval sampling. [USR]
110.+ 62% New directions for livestock policy: an environmental perspective. [USR]
111.+ 62% Ecotourism and interpretation in Costa Rica: parallels and peregrinations. [USR]
112.+ 62% Sistema experto para el diagnostico de plagas insectiles del cultivo de maiz (Zea mays) en Centroamerica. [USR]
113.+ 62% Radon como precursor de sismos en Costa Rica. [USR]
114.+ 62% Efecto de la madurez de los frutos de Hieronyma alchorneoides [Hyeronima] en la germinacion de las semillas. [USR]
115.+ 62% A biosystematic revision of the blackflies (Diptera: Simuliidae) of Belize, Central America. [USR]
116.+ 62% Efecto de la fertilizacion con nitrogeno y potasio sobre el rendimiento del platano currare (Musa sp., Horn Plantain cv. Harton) en Rio Frio, Heredia. [USR]
117.+ 62% Size-related foraging behaviour of the leaf-cutting ant Atta colombica. [USR]
118.+ 62% Expansion del ambito de distribucion del cuclillo faisan Dromococcyx phasianellus (Aves: Cuculidae) en Costa Rica. [USR]
119.+ 62% Description de nouvelles espŠces de Phanaeides (Col. Scarabeidae [Scarabaeidae]). [USR]
120.+ 62% Estudio de suelos y capacidad de uso en las areas piloto, 7: Tierra Blanca de Cartago. [USR]
121.+ 62% The mangrove forests of Sierpe, Costa Rica. [USR]
122.+ 62% Desarrollo del Proyecto Globesar en Costa Rica. [USR]
123.+ 62% Male behavior, courtship and nesting in Trypoxylon (Trypargilum) monteverdeae (Hymenoptera: Sphecidae). [USR]
124.+ 62% New Guinea Impatiens plant named Celebration Hot Pink. [USR]
125.+ 62% Dispersal of Stemmadenia donnell-smithii by birds and monkeys. [USR]
126.+ 62% Enraizamiento de estacas juveniles de Gmelina arborea Linn. [USR]
127.+ 62% Mating pattern and population structure in Escazu, Costa Rica: A study using marriage records. [USR]
128.+ 62% Control de virus, insectos y malezas mediante el uso de variedades de arroz mejoradas por ingenieria genetica. [USR]
129.+ 62% Diversidad genetica y patogenica del hongo Magnaporthe grisea, agente causal del tizon del arroz en Costa Rica. [USR]
130.+ 62% Ants and pepper plants - alliance in a tropical forest? [USR]
131.+ 62% The first cases of Helicobacter pylori (Campylobacter pilori) reported from Costa Rica. [USR]
132.+ 62% EMBIA. Contributions to the biosystematics of the insect order Embiidina. Part 5. A review of the family Anisembiidae with descriptions of new taxa. [USR]
133.+ 62% Za zelvimi obry (2). [USR]
134.+ 62% Basidiomicetos de Costa Rica. Exobasidiales, Cryptobasidiales. Notas historicas, taxonomicas y fitogeograficas. [USR]
135.+ 62% Estrategias a corto plazo de produccion de semilla mejorada geneticamente para la reforestacion en Costa Rica. [USR]
136.+ 62% Land-cover change detection for the tropics using remote sensing and geographic information systems. [USR]
137.+ 62% Along-strike variations in underthrust sediment dewatering on the Nicoya margin, Costa Rica related to the updip limit of seismicity. [USR]
138.+ 62% Illegal palm heart (Geonoma edulis) harvest in Costa Rican national parks: patterns of consumption and extraction. [USR]
139.+ 62% Propagacion de la mora (Rubus sp.) variedad Brazos, por esquejes de raiz. [USR]
140.+ 62% Duas novas especies de Ablaptus St†l (Heteroptera, Pentatomidae, Discocephalinae). [USR]
141.+ 62% Observations on the growth, ecology, and uses of Minquartia guianensis, a humid tropical tree. [USR]
142.+ 62% Epidemiology, modes of transmission and reservoir hosts of Chagas' disease. [USR]
143.+ 62% Humpback whales and other marine mammals off Costa Rica and surrounding waters, 1996-2003. Report of the Oceanic Society 2003 field season in cooperation with Elderhostel volunteers. [USR]
144.+ 60% Factibilidad financiera y economica para el establecimiento de cuarenta y dos hectareas de palmito de pejibaye (Bactris gasipaes H.B.K.) en el distrito de Rio Cuarto del canton de Grecia, Provincia de Alajuela. [USR]
145.+ 60% Partial molecular characterization of bean golden mosaic virus isolates from Jamaica and Central America. [USR]
146.+ 60% New records of azooxanthellate stony corals (Cnidaria, Scleractinia and Stylasteridae) from the Neogene of Panama and Costa Rica. [USR]
147.+ 60% Manual de inseminacion artificial porcina para pequenos productores. [USR]
148.+ 60% Arboreal tropical forest vertebrates: current knowledge and research trends. [USR]
149.+ 60% An improved technique to capture bats using macro mist nets. [USR]
150.+ 60% Reproductive biology on Neotropical wet forest understory plants. [USR]
151.+ 60% The spatio-temporal distribution of acoustical signaling in a neotropical rain forest. [USR]
152.+ 60% Investigacion en fenologia y manejo de frutos y semillas en especies forestales nativas del tropico humedo en la zona Atlantica de Costa Rica. [USR]
153.+ 60% Biodiversity -- source of inspiration and innovation. [USR]
154.+ 60% Hypocrea nigrovirens, a new species with a gliocladium-like anamorph. [USR]
155.+ 60% Community structure and geographic distribution of the coral reefs of Nayarit, Mexican Pacific. [USR]
156.+ 60% Seleccion de especies y procedencias forestales. [USR]
157.+ 60% Implications of seed dispersal by animals for tropical reserve management. [USR]
158.+ 60% Tropical montane cloud forest: a unique hydrological case. [USR]
159.+ 60% Organic matter sedimentation and resuspension in tilapia (Oreochromis niloticus) ponds during a production cycle. [USR]
160.+ 60% Teak (Tectona grandis) in Central America. [USR]
161.+ 60% Informe nacional de Costa Rica para Rio + 10 y Anexos. [USR]
162.+ 60% Mitos y realidad de la biodiversidad neotropical: ¨que hemos hecho, donde estamos y hacia donde vamos? [USR]
163.+ 60% The Crematogaster (Hymenoptera, Formicidae, Myrmicinae) of Costa Rica. [USR]
164.+ 60% Forest genetic resources in Central America: the challenge of conservation. [USR]
165.+ 60% Lineamientos para la estrategia de desarrollo rural sostenible. Version preliminar para consulta. [USR]
166.+ 60% Foliicolous lichens and bryophytes from Cocos Island, Costa Rica. A taxonomical and ecogeographical study. I. Lichens. [USR]
167.+ 60% Gene prospecting for sustainable use of the biodiversity in Costa Rica. [USR]
168.+ 60% Dinamica de potasio en un Andisol de Coto Brus, Costa Rica. [USR]
169.+ 60% Modelo optimizador de trozado de arboles basado en funciones de ahusamiento y programacion dinamica. [USR]
170.- 60% Neutralization of the cytolytic and myotoxic activities of phospholipases A2 from Bothrops asper snake venom by glycosaminoglycans of the heparin/heparan sulfate family. [USR]
171.- 60% Brucella evolution and taxonomy. [USR]
172.- 60% CD ROM Passalidae de Nicaragua. [USR]
173.- 60% Seed predation in _Pentaclethra_ _macroloba_ [USR]
174.- 58% Estimacion y valoracion economica del almacenamiento de carbono. [USR]
175.- 58% Prevalencia del virus X en plantaciones comerciales de papa en la zona del volcan Irazu, Costa Rica. [USR]
176.- 58% Tree-fall gap environments and forest dynamic processes. [USR]
177.- 58% Ein seltener molch aus Costa Rica, Bolitoglossa subpalmata (Boul. 1896). [USR]
178.- 58% Propuesta metodologica: sistemas de produccion de autosuficiencia (SIPROA) basados en la capacidad organizativa de las comunidades. [USR]
179.- 58% A phenotypic and genetic comparison of egg to adult life-history traits between and within two strains of the larger grain borer, Prostephanus truncatus (Horn) (Coleoptera: Bostrichidae). [USR]
180.- 58% Basic limnology of Lago Bonilla, a Tropical lowland lake. [USR]
181.- 58% Localizacion hipocentral y mecanismo focal de algunos temblores fuertes de Costa Rica-Nicaragua. [USR]
182.- 58% Plants of Semillas Sagradas: an ethnomedicinal garden in Costa Rica. [USR]
183.- 58% Plan de manejo del bosque natural de la reserva del Asentamiento La Guaria (Junquillal). [USR]
184.- 58% Strategy for monitoring the management of protected areas in Central America. [USR]
185.- 58% La estructura genetica de las poblaciones de arboles. [USR]
186.- 58% Memorias del seminario internacional " Ecoturismo: politicas locales para oportunidades globales". [USR]
187.- 58% The thermal sensitivity of sprint speed in lizards: the effects of altitude and latitude. [USR]
188.- 58% The dendrobatid frogs of Central America. [USR]
189.- 58% Estudio de caso: promocion de la conservacion y del desarrollo comunitario en Tortuguero, Costa Rica: participacion de una ONG. [USR]
190.- 56% Costa Rican gut fungi (Trichomycetes) infecting lotic insect larvae. [USR]
191.- 56% Hazardous pesticides in Central America. [USR]
192.- 56% New Mexican and Central American species of Acanthoderini with notes on others, part I. (Coleoptera, Cerambycidae, Lamiinae). [USR]
193.- 56% Improvements in cover systems: frijol tapado [USR]
194.- 56% Directrices para un programa de educacion ambiental para las comunidades de Bolson y Ortega, Santa Cruz de Guanacaste. [USR]
195.- 56% Comportamiento de la produccion de leche en hatos Holstein y Jersey del Valle Central de Costa Rica. [USR]
196.- 56% Ensayo de comportamiento de especies forestales en las zonas altas de la Peninsula de Nicoya. [USR]
197.- 56% Rayado fino virus: detection in salivary glands and evidence of increase in virus titer in the leafhopper vector Dalbulus maidis. [USR]
198.- 54% Evaluacion inicial del sistema nampi-maiz en un cultivo en callejones de Erythrina fusca y Calliandra calothyrsus con tres arreglos espaciales. [USR]
199.- 54% Plant diversity in paramo: Towards a checklist of paramo plants and a generic flora. [USR]
200.- 54% Special issue: recreation fees and pricing issues in the public sector. [USR]
201.- 54% Models for recognizing indigenous land rights in Latin America. [USR]