Range-wide population genetic structure of the Caribbean marine angiosperm .

Many marine species have widespread geographic ranges derived from their evolutionary and ecological history particularly their modes of dispersal. Seagrass (marine angiosperm) species have ranges that are unusually widespread, which is not unexpected following recent reviews of reproductive strategies demonstrating the potential for long-distance dispersal combined with longevity through clonality. An exemplar of these dual biological features is turtle grass () which is an ecologically important species throughout the tropical Atlantic region.

Mega Clonality in an Aquatic Plant-A Potential Survival Strategy in a Changing Environment.

Many ecosystems are experiencing rapid transformations due to global environmental change. Understanding how ecological shifts affect species persistence is critical to modern management strategies. The edge of a species range is often where physiological tolerances are in conflict with ability to persist.

Factors associated with intensification of oral diabetes medications in primary care provider-patient dyads: a cohort study.

Objective: Although suboptimal glycemic control is known to be common in diabetic adults, few studies have evaluated factors at the level of the physician-patient encounter. Our objective was to identify novel visit-based factors associated with intensification of oral diabetes medications in diabetic adults.

Research Design And Methods: We conducted a nonconcurrent prospective cohort study of 121 patients with type 2 diabetes and hyperglycemia (A1C > or =8%) enrolled in an academically affiliated managed-care program.

Antibiotic treatment for Clostridium difficile-associated diarrhea in adults.

Background: Clostridium difficile (C. difficile) is recognized as a frequent cause of antibiotic-associated diarrhea and colitis.

Objectives: The aim of this review is to establish the efficacy of antibiotic therapy for C.