Daniel F. Gleason

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The development of a cDNA array of coral genes and its application to investigate changes in coral gene expression associated with stressful conditions is described. The array includes both well-characterized and previously unidentified coral genes from Acropora cervicornis and Montastraea faveolata. Corals were exposed to either natural or anthropogenic(More)
In this study, we used a correlative approach to (1) test for an association between bleaching and host tissue composition during a natural bleaching event, and (2) assess whether bleaching susceptibility varies between years. In August 1997, Montastraea franksi at 15-m depth on Conch Reef, Florida, bleached and the severity of the response varied among(More)
Marine protected areas (MPAs) provide place-based management of marine ecosystems through various degrees and types of protective actions. Habitats such as coral reefs are especially susceptible to degradation resulting from climate change, as evidenced by mass bleaching events over the past two decades. Marine ecosystems are being altered by direct effects(More)
This study tested the hypothesis that waters surrounding reefs with healthy coral populations are more likely than degraded sites to induce planulae to navigate downward and begin benthic probing. In the laboratory, larvae from two brooding Caribbean coral species, Agaricia tenuifolia and Porites astreoides, were introduced to seawater collected at (1) 1 m(More)
It has been proposed that predation pressure declines with increasing latitude and a positive correlation exists between predation intensity and the investment into chemical defenses. However, little direct evidence supports the idea that tropical species are better defended chemically than their temperate counterparts. Temperate reefs of the South Atlantic(More)
Chemical defenses are an effective mode of predator deterrence across benthic marine organisms, but their production may come with associated costs to the organism as limited resources are diverted away from primary processes like growth and reproduction. Organisms concentrating ecologically relevant levels of these defenses in tissues most at risk to(More)
Examined the attitudes, beliefs, and intentions toward self-help groups of 168 graduate students in clinical psychology and social work from five universities using the theory of reasoned action as a model (Fishbein, 1979). Participants held positive attitudes and beliefs regarding self-help and intended to collaborate. Participants who were members of(More)
Assessed the needs of mutual-help groups in relation to how self-help clearinghouses can best assist. Most important problems centered on member involvement, attendance and recruitment, lack of public awareness, and finances. Most important needs were for greater public education and more referrals to groups. Significant differences were found across(More)
Dibromotyrosine-derived metabolites are of common occurrence within marine sponges belonging to the order Verongida. However, previous chemical analysis of crude extracts obtained from samples of the verongid sponge Aplysina fulva collected in Brazil did not provide any dibromotyrosine-derived compounds. In this investigation, five samples of A. fulva from(More)