Imprints of high-salinity water plumes originating from the Red Sea during termination II.

International audienc

Symptoms of stress in the post K-T coastal ecosystem of Rajahmundry (SE India) in relationship with Deccan giant lava flows

International audienc

Phase lag between Intertropical Convergence Zone migration and subtropical monsoon onset over the northwestern Indian Ocean during Marine Isotopic Substage 6.5 (MIS 6.5).

[1] High-resolution faunal and isotopic analyses of foraminifera were performed on core MD96-2073 (10°94 0 N, 52°62 0 E, 3142 m depth), located close to Socotra Island in the upwelling area of the Somali Basin (NW Indian Ocean). This work focuses on Marine Isotopic Stage 6.5 in order to reconstruct paleo-upwelling changes and their links with the Arabian Sea summer monsoon and the migration of the Intertropical Convergence Zone (ITCZ). Correspondence and cluster analyses of planktonic foraminiferal abundances, partly controlled by temperature and water mass productivity, together with an upwelling intensification index, show the occurrence of a strong upwelling between 176 and 165 ka. This upwelling intensification responds to a northward migration of the ITCZ. An isotopic depletion in the planktonic foraminifera d 18 O records occurring between 180 and 167 ka is interpreted as proof of a large salinity decrease in the surface waters, probably linked to a strong input of fresh rainfall waters induced by an intense monsoon activity. The lag between the onset of upwelling intensification and the strong monsoonal impact over the same area suggests a decoupling between both phenomena. The migration of the ITCZ is influenced by obliquity and precessional forcing, while the Arabian Sea summer monsoon precipitation depends only on precessional forcing

Simulation and pleasure in participatory reenactment performance

Paper exploring the performative and ideological implications of immersive participation in historical re-enactment, with a particular focus on the re-enactment of violent encounters such as battles. Examples discussed included the Sealed Knot, the Royal Armouries museum, and the Society for Creative Anachronism

Predation on two brachiopods, Joania cordata and Argyrotheca cuneata, from an offshore reef in the Tyrrhenian Sea

Predator holes in empty shells of Joania cordata and Argyrotheca cuneata (Brachiopoda: Megathyrididae) collected in the marine protected area ‘‘Secche di Tor Paterno’’, central Tyrrhenian Sea, Italy (41350N– 12200E, at depths of 20–28 m), were analyzed. Predation intensity was low but appreciable, with the more common species J. cordata preyed on more frequently (6.7 %) than A. cuneata (3.8 %). Three main types of holes were recognized: (1) cylindrical drill holes with a circular outline, (2) larger irregular holes with a jagged outline, and (3) small holes at the bottom of depressions in the shell. They were probably produced by muricid gastropods, crabs, and Foraminifera, respectively. The large, irregular holes were the most common type in both brachiopod species. Evidence for predator selectivity with respect to which valve, the position of the hole on the valve, and the size of the brachiopod with respect to those available was assessed. The ventral valve, the postero-medial portions of both valves, and larger (J. cordata) or medium-sized (A. cuneata) shells were more frequently holed