Navigation Links
The alpine marmot spreads into the Catalan Pyrenees
Date:3/9/2010

Researchers from the Centre for Ecological Research and Forestry Applications (CREAF) and the Autonomous University of Barcelona (UAB) have demonstrated, using a map of the potential distribution, the alpine marmot's capacity for adaptation in the fields of the Pyrenees. Its quick proliferation makes it a successful example of species introduction.

At the end of the Pleistocene (10,000 years ago), the increase in temperatures brought an end to the alpine marmot (Marmota marmota) in the Pyrenees, but between 1950 and 1988, the French government introduced around 400 specimens into the Pyrenees. The first appearances in Spain date back to 1962-1964 in the valley of Otal (Huesca).

"As an herbivore that lives in colonies, its impact on the flora of the alpine and subalpine fields can be significant. In addition, it can be a key competitor for other herbivores that it coexists with, like the ptarmigan", Bernat Claramunt, main author and researcher in CREAF and in UAB, explains to SINC adding that the impact on the ptarmigan is "very low".

But to determine the magnitude of the direct or indirect effects of the presence of the alpine marmot on the alpine community, the team of scientists from CREAF-UAB, together with the association for environmental studies LUTRA, has ascertained the potential extent of the expansion of this species.

The results, published in Ethology Ecology and Evolution, are visualised on a map showing the potential distribution of the species in the Catalan Pyrenees. In this way, the marmot could occupy all the alpine and subalpine fields of the Pyrenees. In addition, "it is capable of occupying abandoned fields at altitudes lower than its optimum altitudinal level for distribution", points out the Catalan scientist.

The alpine marmot is the largest rodent mammal in Europe. According to some estimates made in 2000, the population is more than 10,000 specimens. Other studies carried out in CREAF-UAB also suggest that "the presence of the alpine marmot favours the biodiversity of the Pyrenees", the researcher highlights.

The benefits of the marmot

By again becoming an abundant species which is of a medium size, the predators of the Pyrenees have found "prey that is easy to capture". Studies on the remains of golden eagles' (Aquila chrysaetos) nests indicate that this bird eats marmot frequently. The scientists have observed that foxes also capture them.

"Very probably, the adaptive flexibility of marmots, the best climatic conditions on the southern slope of the range, and the lower density of significant predators, explain the rapid expansion of the species", Claramunt points out.


'/>"/>

Contact: SINC
info@plataformasinc.es
34-914-251-820
FECYT - Spanish Foundation for Science and Technology
Source:Eurekalert  

Related biology news :

1. Old hay and Alpine ibex horns reveal how grasslands respond to climate change
2. Alpine rivers hold important clues for preserving biodiversity and coping with climate change
3. International experts collect alpine fungi in Beartooth Mountains of Montana
4. Einstein researchers develop a new way to study how breast cancer spreads
5. Deadly rugby virus spreads in sumo wrestlers
6. UCLA researchers locate and image prostate cancer as it spreads to lymph nodes
7. How cancer spreads by aggregating platelets
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
The alpine marmot spreads into the Catalan Pyrenees
(Date:6/22/2016)... ANGELES , June 22, 2016 /PRNewswire/ ... identity management and verification solutions, has partnered ... edge software solutions for Visitor Management, Self-Service ... provides products that add functional enhancements ... partnership provides corporations and venues with an ...
(Date:6/21/2016)... Columbia , June 21, 2016 ... to the new role of principal product architect ... named the director of customer development. Both will ... chief technical officer. The moves reflect NuData,s strategic ... in response to high customer demand and customer ...
(Date:6/16/2016)... , June 16, 2016 ... is expected to reach USD 1.83 billion by ... View Research, Inc. Technological proliferation and increasing demand ... are expected to drive the market growth. ... The development of advanced multimodal techniques ...
Breaking Biology News(10 mins):
(Date:6/23/2016)... ... June 23, 2016 , ... Mosio, a leader in ... Trials Patient Recruitment and Retention Tips.” Partnering with experienced clinical research professionals, Mosio ... practical tips, tools, and strategies for clinical researchers. , “The landscape of how ...
(Date:6/23/2016)... SILVER SPRING, Md. , June 23, 2016 ... evidence collected from the crime scene to track the criminal ... sick, and the U.S. Food and Drug Administration (FDA) uses ... Sound far-fetched? It,s not. ... whole genome sequencing to support investigations of foodborne illnesses. Put ...
(Date:6/23/2016)... NEW YORK , June, 23, 2016  The ... students to envision new ways to harness living systems ... of Modern Art (MoMA) in New York ... more than 130 participating students, showcased projects at MoMA,s ... included Paola Antonelli , MoMA,s senior curator of ...
(Date:6/23/2016)... ... 2016 , ... In a new case report published today in STEM CELLS ... developed lymphedema after being treated for breast cancer benefitted from an injection of stem ... with this debilitating, frequent side effect of cancer treatment. , Lymphedema refers ...
Breaking Biology Technology: