Search
Now showing items 1-10 of 15
Parasitic eggs in ancient coprolites from archeological sites in Puerto Rico
(2012)
Parasites have accompanied the human species since its origin and through their migrations around the world. Evidence of ancient parasitic diseases has been recovered from ancient human remains since 1910. The present work ...
Diversity of Actinobacteria associated with common ant species in the Guánica Tropical Dry Forest, Puerto Rico
(2012)
The diversity of Actinobacteria associated with ants that do not grow fungi was determined in the Guánica subtropical dry forest. Actinobacteria produces secondary metabolites used as antibiotics antifungals and antivirals. ...
Detection of integron-encoded integrases in environments with moderate anthropogenic impact from Puerto Rico
(2012)
Integrons are genetic elements with a site-specific recombination system which includes an integrase (IntI) capable of capturing and expressing promoterless, circular DNA molecules known as gene cassettes. Although integrons ...
Understory Plant Communities in the Surroundings of the Joyuda Lagoon, Puerto Rico
(2012)
Studies focused on the distribution of understory species associated with mangrove forests are very scarce. This research provides a detailed description of the understory community and their environmental requirements at ...
Revision and phylogeny of the genus Pselaphomorphus Motschulsky, 1855 (Staphylinidae, Pselaphinae: Jubini).
(2012)
The Neotropical genus Pselaphomorphus Motschulsky, 1855 (Coleoptera: Staphylinidae: Pselaphinae: Jubini Raffray) is revised, including the redescription of P. sculpturatus Motshulsky, 1855 (Panama), P. longiceps Raffray, ...
Drosophila as a versatile in vivo testbed for nanomaterial toxicity assessment.
(2012)
Dramatic advances in nanomaterials synthesis and characterization provide promising possibilities for biomedical applications. Consequently, there is a growing demand for well- characterized, low cost toxicity assays for ...
Generation of large-insert metagenomic libraries from subtropical hypersaline microbial mats and their screening for antibiotic resistance
(2012)
Most of the microbial diversity in an environment cannot be studied through laboratory standard media culture methods. For this, an emerging science, coined “Metagenomics”, has been developed as an effort to access the ...
Anaerobic bioconversion of collagen to methane
(2012)
This thesis reports the use of two anaerobic batch reactors (ABRs) to transform a protein solid waste into a renewable energy source. The “heart” of this type of reactor depends on the microbial community within the reactor, ...
Interaction between the fungus-growing ant Cyphomyrmex minutus and its symbionts at Cambalache Forest, Puerto Rico
(2012)
The ants in the tribe Attini cultivate a fungus (Basidiomycota: Agaricales) as food and protect it from specific mycoparasites, Escovopsis (Ascomycota: Hypocreales), using the antibiotic production capacity of Actinobacteria ...
Effects of food concentration in the competition between larvae of the introduced cane toad (Rhinella marina) and the native white-lipped frog (Leptodactylus albilabris)
(2012)
Invasive species are a major focus within conservation biology. The widely introduced cane toad, Rhinella marina, has gained particular interest in studies of effects of invasive species on native communities. In this study ...