Browsing Center for Applied Tropical Ecology and Conservation by Title
Now showing items 21-40 of 65
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Development of Microsatellite Markers for Population Genetic Studies of Harrisia portoricensisand Related Species
(External Scientific Advisory Committe (ESAC), 2009-11)Harrisia portoricensis is a columnar cactus endemic to Puerto Rico. It was first collected and described from southern Puerto Rico, but urban and agricultural development extirpated these populations. At present, the species ... -
Diversity of fungi in the Hoatzin crop: an 18S rDNA-based approach
(Extenal Scientific Advisory Committe (ESAC), 2009-11)The Hoatzin is a unique South American herbivorous bird and the smallest vertebrate to have a fermentative crop, similar to the cow rumen. Like bacteria, fungi play an important role in ... -
Ecophysiological evaluation of the invasive capacity of an exotic plant (Spathodea campanulata-tulipánafricano) in a secondary forest of Puerto Rico
(External Scientific Advisory Committe (ESAC), 2009-11)The purpose of this research is to evaluate the potential invasibility of Spathodeacampanulata (Africantulip) in a secondary forest at the University of Puerto Rico at Humacao. We intended to assess ecophysiological ... -
Effect of exotic grass Megathyrsus maximuson soil mites fauna in Mona Island Reserve
(External Scientific Advisory Committe (ESAC), 2009-11)Biological invasions alter ecosystem processes in invaded areas, there by causing functional as well as compositional change (D’Antonio and Vitousek,1992). In dominated sites, grasses can alter ecosystem processes from ... -
Effect of exotic grass, Megathyrsus maximus, on native biodiversity in Mona Island Reserve
(External Scientific Advisory Committe (ESAC), 2009-11)Species invasions are considered one of the leading causes of global biodiversity loss (Wonham,2005)and are the second cause of species endangerment in the United States(Brooksand Pyke, 2002. The African grass, Megathyrsus ... -
Effects of climate change on Lepanthes rupestris
(External Scientific Advisory Committe (ESAC), 2009-11)The last decades have experienced dramatic changes in the overall climate (UNFCCC 2002, EEA 2006, Chambers 2006). In the Caribbean, the annual average temperature has increased about 0.5°C with an expected trend for drier ... -
Effects of salinity on the growth and survival of tadpoles of the Puerto Rican Crested Toad (Peltophryne lemur)
(External Scientific Advisory Committe (ESAC), 2009-10)Aquatic habitats play an important role in the reproduction of adult amphibians and in the development of their larvae. In these habitats, the interactions of biotic and abiotic factors influence tadpole ecology. Tadpole ... -
Factors affecting seed germination and seedling establishment of Harrisia portoricensis (Cactaceae) in Mona Island
(External Scientific Advisory Committe (ESAC), 2009-11)Germination, establishment, and survival of young plants appear to be the most critical phases in the life cycle of cacti (Godínez-Alvarez et al. 2003). Thus, understand factors affecting processes of germination and ... -
Frugivory in Puerto Rican Anolis lizards and its possible effects on seed dispersal in tropical dry and moist forests on karst
(External Scientific Advisory Committe (ESAC), 2009-11)Feeding is an important component in consumer-resource interactions of population-community ecology and in energy and nutrient transfers of ecosystems ecology (Bengtsson 1998). Food webs are used to describe the complexity ... -
Genetic Characterization of Mona Island Feral Goats and Pigs using Microsatellite Markers
(External Scientific Advisory Committe (ESAC), 2009-11)Feral goats (Caprahircus) and pigs (Susscrofa) were introduced more than four centuries ago by Spanish settlers to Mona Island. They were set loose to reproduce and provide a source of fresh meat for travelers to Mona and ... -
Glyphosate in Urban Rivers: Environmental and Health Impacts
(External Scientific Advisory Committe (ESAC), 2009-11) -
Ground Water Dynamics of the Littoral Coastal Zone of the Guanica Dry Forest, Puerto Rico
(External Scientific Advisory Committe (ESAC), 2009-11)Climatic change may have detrimental effects on the coastal habitats of Puerto Rico due to reductions in rainfall, increase in sea levels, and changes in the hydrology of coastal wetlands. Due to these concerns, a ground ... -
How microbes and hosts interact?
(External Scientific Advisory Committe (ESAC), 2009-10) -
Hydrologic dynamics in a Urban Tropical Lagoon, San Juan Bay Estuary, Puerto Rico
(External Scientific Advisory Committe (ESAC), 2009-11)The San Juan Bay Estuary (SJBE) is an important natural coastal resource which comprises several types of habitats, five lagoons, and the largest mangrove forest in Puerto Rico: the Piñones Commonwealth Forest. During the ... -
Hydrologic dynamics in a Urban Tropical Lagoon, San Juan Bay Estuary, Puerto Rico
(External Scientific Advisory Committe (ESAC), 2009-11)The San Juan Bay Estuary (SJBE) is an important natural coastal resource which comprises several types of habitats, five lagoons, and the largest mangrove forest in Puerto Rico: the Piñones Commonwealth Forest. During the ... -
Hydrologic impacts and community perceptions of land use change in the Southern Aquifer Recharge Area, Santa Isabel and Salinas, Puerto Rico
(External Scientific Advisory Committe (ESAC), 2009-11)A research project is being proposed to study the relationship between land use and the hydrology of the Southern Aquifer between Santa Isabel and Salinas, Puerto Rico. Land use change in the area will be studied from ... -
Leaf Fall in a New Forest: ecosystem functioning of stands dominated by an introduced species
(External Scientific Advisory Committe, 2009-11)Today about half of the island has been naturally reforested with native and introduced species (Lugo and Helmer 2004). These new forests have been criticized around the world, but studies showing the real influence of ... -
Leaf litter decomposition in tropical and temperate rainforests: teaching climate-driven ecosystem processes outside the science classroom.
(External Scientific Advisory Committe (ESAC), 2009-11)One of my goal as a future teacher is to motivate students to better understand the environment and the the natural processes that regulates the ecosystem functionality. One way to accomplish this is by teaching ecosystem ... -
Location Drone Congregation Areas (DCA) or honey bee mating congregation
(External Scientific Advisory Committe (ESAC), 2009-11)Honey bee mating at 30 meters above ground and 12 miles/hour make studies on conservation, hybridization, and mating behavior difficult. Establishing a reliable set of criteria that could aid in finding DCAs are important ... -
Microsatellite and Mitochondrial Markers Show Low Genetic Structure in the Elkhorn Coral of Puerto Rico
(External Scientific Advisory Committe (ESAC), 2009-11)Fine scale genetic structure of the coral Acropora palmata was investigated by sampling 9 reefs in Puerto Rico and 1 in the Bahamas as an out-group. Of a total of 276 samples, 201 had unique genotypes and the remaining 75 ...