The Nature Explorers South Los Padres Expedition Part 2 of 8

submitted by: thenatureexplorers

In this expedition we travel to South Los Padres National forest, 25 miles north of Los Angeles California. This diverse eco-system is situated just outside one of the largest cities in the world, but it's amazing what the Piru Creek and surrounding Echo Valley ecosystem has to offer.

The Nature Explorers South Los Padres Expedition Part 1 of 8

submitted by: thenatureexplorers

In this expedition we travel to South Los Padres National forest, 25 miles north of Los Angeles California. This diverse eco-system is situated just outside one of the largest cities in the world, but it's amazing what the Piru Creek and surrounding Echo Valley ecosystem has to offer.

DNA Barcoding and biodiversity of the Mediterranean sea

submitted by: irenes
Today only about 250,000 marine species have been described, with a underestimation of biodiversity at all levels. Identify every species is a challenging job and the taxonomic approaches are not sufficient to complete the work. DNA Barcoding has recently been developed, a method that analyses a short sequence of mitochondrial DNA to identify taxa. An innovative support for the study of marine biodiversity: to ascertain the true correspondence between unknown and known species, the genetic...

Estimating the ecological impact of the invasive lionfish, Pterois volitans, in the Western Caribbean Sea (Roatan, Bay Islands, Honduras) through gut content analysis

submitted by: Astrid_Mejia

Mejia Martinez AY (Bay Islands Conservation Association, Honduras) ? Puncher GN (Roatan Marine Park, Honduras) ? Erzini K (Center of Marine Sciences, Portugal) ? Gonçalves JMS (Center of Marine Sciences, Portugal)

Predicted levels of future ocean acidification and temperature rise could alter community structure and biodiversity in marine benthic communities

submitted by: R_Hale
 A mesocosm experiment was conducted to quantify the effects of pH and temperature on an intact marine invertebrate community. Standardised communities from the low intertidal zone were exposed to one of eight nominal treatments (four pH × two temperature levels). After 60 days exposure communities showed significant changes in structure and diversity. At higher pH levels elevated temperature treatments contained higher species abundances and diversity than the lower temperature treatments.