Browsing Center for Applied Tropical Ecology and Conservation by Issue Date
Now showing items 1-20 of 65
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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 ... -
How microbes and hosts interact?
(External Scientific Advisory Committe (ESAC), 2009-10) -
There goes the neighborhood: Reproductive success of Bletia patula when Spathoglottis plicata moves in
(External Scientific Advisory Committe (ESAC), 2009-11)Naturalized exotic species are homogenizing the earth’s biota and are increasing densities of pests in newly colonized areas. When exotics change ecosystems and affect native species, then they are invasive. Do high density ... -
A preliminary phylogeny of Caribbean Tabebuia based on the nrDNA ITS region
(External Scientific Advisory Committe (ESAC), 2009-11)Tabebuia Gomes ex DC. (Bignoniaceae) is an extremely diverse Neotropical genus of woody species with great economical value and wide distribution from Mexico to Argentina. Although ca 108 taxa have been described (Gentry, ... -
Roadside Ménage à Trois: A Native Pest on an Exotic Orchid Weed Defended by Ants?
(External Scientific Advisory Committe (ESAC), 2009-11)The resource concentration hypothesis states that herbivores are more likely to find and remain on hosts that are growing in dense stands. Some areas in the Rio Abajo Reserve of Puerto Rico have dense populations of ... -
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 ... -
Age-Related Changes in the Hoatzin Crop Bacterial Community
(External Scientific Advisory Committe (ESAC), 2009-11)The hoatzin (Opisthocomus hoazin)is a South American folivorous bird, with a crop microbial ecosystem that ferments dietary plant material. Juvenile birds progressively become independent from the chicks fed by adults ... -
The Exotic Fresh Water Fish Community of Several Puerto Rico Reservoirs: Similarity Patterns and Recreational Opportunities
(External Scientific Advisory Committe (ESAC), 2009-11)To compare the exotic freshwater fish community and determine similarity patterns among several reservoirs. -
Pollination Biology of Harrisia portoricensis (Cactaceae), an Endangered Caribbean Species
(External Scientific Advisory Committe (ESAC), 2009-11)Information on the breeding system of endangered plants is often useful piece of information for conservation and management of wild populations. This is so as the foraging behavior of the pollinators and the plant breeding ... -
Carbon Fates in Tropical Stratify Estuaries
(External Scientific Advisory Committe (ESAC), 2009-11)Estuaries are highly productive coastal ecotones. Influenced by tidal, wave, and wind actions that control water mixing. Estuaries recipients of allochthonous organic matter (OM). OM is processed and exported to ocean under ... -
UPR Herbarium Botanical Garden of the University of Puerto Rico
(External Scientific Advisory Committe (ESAC), 2009-11)The UPR Herbarium is the center of the scientific activity of the Botanical Garden. The herbarium preserves approximately 40,000 plants specimens from the Flora of Puerto Rico. Our plant specimen collection includes Type ... -
Biodegradability of Dissolved Organic Carbon in the Río Piedras Watershed, Puerto Rico
(External Scientific Advisory Committe (ESAC), 2009-11)Organic matter is classified in groups, and total organic carbon (TOC) is the sum of dissolved organic carbon (DOC) and particulate organic carbon (POC). DOC composes most of the TOC and therefore it is our main focus. Puerto ... -
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 ... -
Status of viruses causing symptoms in cucurbits in Puerto Rico
(External Scientific Advisory Committe (ESAC), 2009-11)Cucurbits provide important basic ingredients for the Caribbean diet. Pumpkins are the second most important vegetable crop in terms of revenue generated in Puerto Rico. Virus and severe virus vector outbreaks are a frequent ... -
Spatial Distribution and Performance of Native and Invasive Ardisia (Myrsinaceae) Species in Puerto Rico: The anatomy of an invasion
(External Scientific Advisory Committe (ESAC), 2009-11)Establishing and spread of invasive species into new habitat is considered the second most significant threat to biodiversity worldwide, this is in part due to displacement and extinction of native species. However, the ... -
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 ... -
Mycorrhizal specificity of the invasive orchid Oeceoclades maculata in Puerto Rico
(External Scientific Advisory Committe (ESAC), 2009-11)The terrestrial orchid Oeceoclades maculata is found throughout Puerto Rico. Originally from Africa, it has been called the most widespread orchid around the world. This success has been attributed to its tendency for ... -
The crop bacterial microbiota in adult hoatzins from different geographical locations
(External Scientific Advisory Committe (ESAC), 2009-11)The hoatzin is the only folivorous bird known to have foregut fermentation. Since changes in plant availability must influence the dietary choices and affect the structure of the digestive microbiota in herbivores, we ... -
Spatial analysis of foraging activity of the Polygynous Red Imported Fire Ant Solenopsis invicta (Hymenoptera: Formicidae).
(External Scientific Advisory Committe (ESAC), 2009-11)Densities of polygyne Solenopsis invicta are higher in the introduced range than the monogyne social form and this might be because the lack of intraspecific aggression, but the mechanisms of how polygyne colonies persist ... -
Changes in structural characteristics of leaves as related to water availability from trees growing in the Costal Plateau of Guánica Dry Forest
(External Scientific Advisory Committe (ESAC), 2009-11)Trees in the Coastal Plateau of Guánica Dry Forest are growing under a combination of environmental stressors such as water, nutrient availability, salt spray, and wind that determine their capacity to grow and maintain ...