Featured Research

from universities, journals, and other organizations

Two new crustaceans discovered in Iberian Peninsula, Spain

Date:
March 2, 2011
Source:
Plataforma SINC
Summary:
Scientists have now described two cladocerous crustaceans, which could be endemic to the Iberian Peninsula, and which were found in two lagoons, one in the lower basin of the Guadalquivir river, and the other in the grasslands of Extremadura. Both of these arthropods may today inhabit more areas in the Mediterranean region.

Illustrations of new crustaceans.
Credit: Miguel Alonso

A team of scientists has described two cladocerous crustaceans, which could be endemic to the Iberian Peninsula, and which were found in two lagoons, one in the lower basin of the Guadalquivir river, and the other in the grasslands of Extremadura. Both of these arthropods may today inhabit more areas in the Mediterranean region.

"These two new crustaceans (Leydigia) are a species of living fossil and are very powerful bio-geographic and historical indicators," Miguel Alonso, one of the authors of the study, and a researcher in the Department of Ecology of the University of Barcelona (UB),said.

The first of the species discovered on the Peninsula, Leydigia iberica, had been previously described with the name Leydigia acanthocercoides. The crustacean was found in the Longuilla lagoon, in the lower basin of the Guadalquivir river.

"Leydigia acanthocercoides had always been cited in the Iberian Peninsular, and it is very probable that many crustaceans that have been identified with this name belong to one of the new species discovered. However, it is possible that Leydigia acanthocercoides does not even exist on the Peninsula," explains Alonso.

The second kind, Leydigia korovchinskyi, was discovered in the Chaparral lagoon, a cattle watering hole on the grasslands of Extremadura. These cladocerous crustaceans are one millimetre long and inhabit bodies of fresh water that frequently dry out.

The research, which has recently been published in the journal Zootaxa, shows that the arthropods are very ancient -- from the Permian period (250 million years ago), and have a very slow rate of morphological change. "This is why we think they divided a long time ago," the researcher adds.

The Mediterranean region -- a "hotbed"

The two crustaceans seem to be endemic to the Iberian Peninsula. However, the study shows that they may be distributed across a more extensive area the length of the Mediterranean region. All these areas are "a hotbed of endemism for cladocerous crustaceans, as is also the case in Japan and eastern Russia," says Alonso.

In Spain, these endemic species are some of the faunal remnants from before the Pleistocene fauna, more than 1.8 million years ago, due to the "marginal" nature of their habitat during glaciations. The crustaceans did not colonise new territories until after the ice had melted.


Story Source:

The above story is based on materials provided by Plataforma SINC. Note: Materials may be edited for content and length.


Journal Reference:

  1. Kotov. Two new species of Leydigia Kurz, 1875 (Chydoridae, Cladocera) from Spain. Zootaxa, 2673: 39%u201355 (10 Nov. 2010) [link]

Cite This Page:

Plataforma SINC. "Two new crustaceans discovered in Iberian Peninsula, Spain." ScienceDaily. ScienceDaily, 2 March 2011. <www.sciencedaily.com/releases/2011/03/110302075955.htm>.
Plataforma SINC. (2011, March 2). Two new crustaceans discovered in Iberian Peninsula, Spain. ScienceDaily. Retrieved September 18, 2014 from www.sciencedaily.com/releases/2011/03/110302075955.htm
Plataforma SINC. "Two new crustaceans discovered in Iberian Peninsula, Spain." ScienceDaily. www.sciencedaily.com/releases/2011/03/110302075955.htm (accessed September 18, 2014).

Share This



More Plants & Animals News

Thursday, September 18, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Raw: Elephant Undergoes Surgery in Tbilisi Zoo

Raw: Elephant Undergoes Surgery in Tbilisi Zoo

AP (Sep. 18, 2014) Grand the elephant has successfully undergone surgery to remove a portion of infected tusk at Tbilisi Zoo in Georgia. British veterinary surgeons used an electric drill to extract the infected piece. (Sept. 18) Video provided by AP
Powered by NewsLook.com
Chimp Violence Study Renews Debate On Why They Kill

Chimp Violence Study Renews Debate On Why They Kill

Newsy (Sep. 17, 2014) The study weighs in on a debate over whether chimps are naturally violent or become that way due to human interference in the environment. Video provided by Newsy
Powered by NewsLook.com
Some Tobacco Farmers Thrive Amid Challenges

Some Tobacco Farmers Thrive Amid Challenges

AP (Sep. 16, 2014) The South's tobacco country is surviving, and even thriving in some cases, as demand overseas keeps growers in the fields of one of America's oldest cash crops. (Sept. 16) Video provided by AP
Powered by NewsLook.com
Scientists Given Rare Glimpse of 350-Kilo Colossal Squid

Scientists Given Rare Glimpse of 350-Kilo Colossal Squid

AFP (Sep. 16, 2014) Scientists say a female colossal squid weighing an estimated 350 kilograms (770 lbs) and thought to be only the second intact specimen ever found was carrying eggs when discovered in the Antarctic. Duration: 00:47 Video provided by AFP
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:
from the past week

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins