Tropical wing snail (Conomurex persicus), an Indo-Pacific species, off the Israeli coast (© Jan Steger) |
Communities of introduced tropical species differ significantly in their biological properties from the native wildlife in the eastern Mediterranean, as an international team of researchers led by Jan Steger from the Institute of Paleontology found. As a result - and due to the progressive collapse of Mediterranean species - the shallow water ecosystems in the region are changing particularly profoundly. The study was published in the journal Global Ecology and Biogeography.
The eastern Mediterranean is undergoing dramatic ecological change - while native species are disappearing more and more, tropical organisms introduced through the Suez Canal, called Lesseps’s species, thrive splendidly as a result of ever warmer water temperatures. However, they do not directly displace the native species, but rather occupy "free niches", according to a study that has now been published in the Journal Global Ecology and Biogeography.
"To understand how the increase in tropical species affects the native fauna and the function of the ecosystems, one has to compare their biological properties - such as lifestyle or nutrition - with those of the native fauna," says Jan Steger, doctoral student and first author of the new one Study.