Variabilidad espacial en comunidades bentónicas intermareales: diferencias entre hábitats rocosos con y sin arena

Grupo de Investigación BioCost, Universidade da Coruña, Facultade de Ciencias, A Coruña, España

Mouse in the House: Deer Mouse and Sin Nombre Virus Dynamics in Montana

Sin Nombre virus is a strain of Hantavirus that causes the sometimes fatal human illness Hantavirus Pulmonary Syndrome. The reservoir host of SNV is the deer mouse. Deer mice are found in a wide variety of habitats including peridomestic (in and around buildings) settings. Amy provides an overview of hantaviruses and discusses the research she has been conducting on the SNV/deer mice system since 1995 (in Arizona) and 1999 (in Montana).

Calcium isotopic composition of high-latitude proxy carrier Neogloboquadrina pachyderma (sin.)

The accurate reconstruction of sea surface temperature (SST) history in climate-sensitive regions (e.g. tropical and polar oceans) became a challenging task in palaeoceanographic research. Biogenic shell carbonate SST proxies successfully developed for tropical regions often fail in cool water environments. Their major regional shortcomings and the cryptic diversity now found within the major high latitude proxy carrier Neogloboquadrina pachyderma (sin.) highlight an urgent need to explore complementary SST proxies for these cool-water regions. Here we incorporate the genetic component into a calibration study of a new SST proxy for the high latitudes. We found that the calcium isotopic composition (δ44/40Ca) of calcite from genotyped net catches and core-top samples of the planktonic foraminifera Neogloboquadrina pachyderma (sin.) is related to temperature and unaffected by genetic variations. The temperature sensitivity has been found to be 0.17 (±0.02)‰ per 1°C, highlighting its potential for downcore applications in open marine cool-water environments. Our results further indicate that in extreme polar environments, below a critical threshold temperature of 2.0 (±0.5)°C associated with salinities below 33.0 (±0.5)‰, a prominent shift in biomineralization affects the δ44/40Ca of genotyped and core-top N. pachyderma (sin.), becoming insensitive to temperature. These findings highlight the need of more systematic calibration studies on single planktonic foraminiferal species in order to unravel species-specific factors influencing the temperature sensitivity of Ca isotope fractionation and to validate the proxies' applicability.

Intereses nacionales : españoles sin patria y la raza sefardi

Angel Pulido Fernández

Theater zu Tien-Sin.

Signatur des Originals: S 36/G02686

La didáctica en la enseñanza del código de lecto-escritura braille, en estudiantes sin deficiencia visual, cursantes de la carrera de formación docente en educación especial. 16H275

Lista de actividades realizadas durante el período: - Se definió de modo exhaustivo el problema del proyecto, a través de la elaboración de un árbol de problemas. - Exploración de fuentes bibliográficas. - Los objetivos se reanalizaron y se consideró que los planteados inauguralmente fueron adecuados. Se elaboró una primera aproximación al estado del arte y al marco teórico.