This study investigates stable isotope signatures of five species of Silurian and Devonian deep-water, ahermatypic rugose corals, providing new insights into isotopic fractionation effects exhibited by Palaeozoic rugosans, and possible role of diagenetic processes in modifying their original isotopic signals. To minimize the influence of intraskeletal cements on the observed signatures, the ana...

Corals are powerful ecosystem engineers and can form reef communities with extraordinary biodiversity through time. Understanding the processes underlying spatial distribution of corals allows us to identify key biological physical that structure coral how these interactions have evolved. However, few ecology studies been conducted on assemblages in fossil record. Here we use point process anal...

Throughout the Caribbean, coral reefs are transitioning from rugose, coral-dominated communities to flat, soft habitats, triggering declines in biodiversity. To help mitigate these losses, artificial structures have been used re-create substrate complexity and support reef inhabitants. This study natural investigate factors influencing use of habitat by fish. During 2018 2019, divers added moni...

This study uses taphonomic, sedimentologic, and stratigraphic evidence from fossiliferous beds in Marblehead Quarry to review two hypotheses: 1) that the fossiliferous beds at Marblehead Quarry represent a series of in situ paleocommunities, and 2) whether fossiliferous concentrations in carbonate environments are primarily caused by periods of low net sedimentation. The fossiliferous beds of M...

The Hannibal Bank sits within the Coiba UNESCO World Heritage Site in Pacific Panama and is also a fisheries management zone. Despite the protected status of the area and the importance of the Bank for commercial fish species such as snapper and tuna, the seamount has received no detailed survey except some collection of organisms. This study mapped the major topographic features and complexity...

Abstract Palaeozoic coral communities were dominated by two extinct groups: Tabulata and Rugosa. Whilst they are not closely related to modern Scleractinia, morphologically convergent, displaying many morphological characters that allow comparisons between recent ancient reef communities. The extensive shallow-water of the Devonian generally stromatoporoid sponges, with corals occupying deeper ...

Bacterial biofilm formation is a complex developmental process involving cellular differentiation and the formation of intricate 3D structures. Here we demonstrate that exposure to ferric chloride triggers rugose biofilm formation by the uropathogenic Escherichia coli strain UTI89 and by enteric bacteria Citrobacter koseri and Salmonella enterica serovar typhimurium. Two unique and separable ce...

In October, 2010, epidemic cholera was reported for the first time in Haiti in over 100 years. Establishment of cholera endemicity in Haiti will be dependent in large part on the continued presence of toxigenic V. cholerae O1 in aquatic reservoirs. The rugose phenotype of V. cholerae, characterized by exopolysaccharide production that confers resistance to environmental stress, is a potential c...