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Now showing items 181-190 of 556
Effects Of Radio Transmitter Burdening On Locomotor Ability And Survival Of Iguana Hatchlings
(Allen Press, 2009)
We performed a two-part experiment in 2007 and 2008 to investigate the effects of externally
affixed radio transmitters on the locomotor performance and survival of green iguana {Iguana iguana)
hatchlings. Using sprint ...
Effects of the protein: energy ratio in isocaloric diets on the growth of Cichlasoma managuense (Gunther 1869)
(Wiley & Sons, 1994)
A feeding experiment was conducted to evaluate the growth of tiger guapote,
Cichlasoma managuense (Gunther), fed on isocaloric diets with varying proteinxnergy ratios.
The relative metabolic growth rate increased with ...
Environmental impacts of nitrification and nitrate adsorption in fertilized andisols in the Valle Central of Costa Rica
(Williams & Wilkins, 1994)
A major scientific challenge for modern agriculture is control of off-site effects on the water resource. In the Valle Central of Costa Rica, coffee plantations may leach fertilizer-derived (Equation presented) to groundwaters, ...
Mortalidad embrionaria y éxito de eclosión en huevos de Trachemys scripta (Testudines: Emydidae) incubados en un área natural protegida
(Universidad de Costa Rica, 1996)
In the northeast of Costa Rica, ilIega! collecting, habitat destruction and heavy predation 011 adult females,
young and eggs of Trachemys scripta produced a population decline in recent years. The slider tUltle has a ...
Epiphytic bromeliad communities in secondary and mature forest in a tropical premontane area
(Universidad Nacional, Costa Rica, 2006)
We analyzed the differences in species richness, community composition, population
structure and within-tree location of epiphytic bromeliads in contiguous secondary
and mature forests in a premontane area in Costa Rica. ...
Estimación de parámetros biologico-pequeros para el pargo mancha Lutjanus guttatus en el Golfo de Nicoya, Costa Rica
(Universidad Nacional [Costa Rica], 1998-01-01)
El pargo manchado Lutjanus guttatus es una de las especies demersales más importantes de la costa del Pacífico de Costa Rica. Este pez demersal es capturado principalmente por la flota artesanal con redes de enmalle y ...
Explotación de la pesquería de arrastre de camarón durante el período 1991-1999 en el Golfo de Nicoya, Costa Rica
(Universidad de Costa Rica, 2006)
Exploitation of the shrimp trawl fishery in the period 1991-1999 at the Gulf of Nicoya, Costa
Rica. In Costa Rica, the Gulf of Nicoya shrimp fishery originated in 1952 and represented one of the most
important economic ...
Éxito reproductivo de Caligo atreus (Lepidoctera: Nymphalidae) en condiciones de cultivo
(Universidad de Costa Rica, 1999)
En Río Macho, Cartago, Costa Rica, se estudiaron en cautiverio, los estados del ciclo de vida de
Caligo atreus (Lepidoptera: Nymphalidae), con Heliconia tortuosa (Heliconiaceae) como planta hospedera. Los
huevos fueron ...
Presencia de Craspedacusta Sowerbyi en el embalse de Arenal provincia de Guanacaste, Costa Rica
(Universidad Nacional [Costa Rica], 1989-01-01)
Nuevo ámbito geográfico. En América, desde Canadá hasta Brasil, también con Costa Rica, en el Embalse de Arenal, provincia de Guanacaste.
Fecundidad, fertilidad e índice gonadosomático de Poecilia reticulata(Pisces: Poeciliidae) en Heredia, Costa Rica
(Universidad de Costa Rica, 2004)
Fertility, fecundity and gonadosomatic index of Poecilia reticulata(Pisces: Poeciliidae) in Heredia, Costa Rica. Between September and November of 1998, 1 432 females of Poecilia reticulata were collected in a ...