Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

New type of peccary discovered in Amazon region

02.11.2007
Dutch biologist Marc van Roosmalen has discovered a new species of peccary in the basin of the Rio Aripuanã in the south-eastern Amazon region.

Van Roosmalen’s research has been supported by scientists from Leiden, Germany and Belgium. The genetic analysis was conducted by the Leiden Centre for Environmental Sciences (CML). The divergence time from the already known peccary species (the time which has passed since the evolutionary division) has been set at one to 1.2 million years.

This species has been christened giant peccary (Pecari maximus) by the researchers on account of its size. The holotype of the species can be found in the museum of the Instituto Nacional de Pesquisas da Amazônia (INPA) in Manaus. The research findings were published in the scientific journal Bonner zoologische Beiträge on 29 October. The giant peccary was known by the local Tupi Indians as Caitetú Mundè, which means ‘great peccary which lives in pairs’.

Peccaries belong to the pig family from the New World (Tayassuidae).
Until recently, the species consisted of three types: the collared peccary, the white-lipped peccary and the Chaccoan peccary. In his contacts with local hunters in area of the Rio Aripuanã basin, Van Roosmalen came across three hides of a species of peccary which he had encountered several times in the local jungle, and which differed strongly from the collared peccary which was also indigenous to the area. The measurements of the body and the skull confirmed that the new species is larger than the other peccary species.

The giant peccary has comparatively longer legs and its fur markings are also completely different. The skull sizes of the giant peccary also appear to differ from the other species. Genetic analysis indicates a divergence time with the collared and white-lipped peccary of between one and 1.2 million years. The giant peccary occurs sympatrically with the white-lipped and collared species, in other words they are found in the same region.

The new species also exhibits very different behaviour from its family members, the white-lipped and collared peccaries. These species are found in large to very large groups (even up to hundreds of individual animals in the case of the white-lipped peccary), while the giant peccary is only found in pairs or in small family groups with one or two offspring. The other peccary types root in the ground for seeds and roots. The giant peccary eats mainly fruit and exhibits little or no rooting behaviour. The habitat of the giant peccary is limited to terra firme, dry wooded areas, in a small region of the basin of the Rio Aripuanã. The researchers therefore expect the giant peccary population to be small, and they recommend that this new species should be placed on the Red List of threatened species of the International Union for Conservation of Nature and Natural Resources (IUCN).

Van Roosmalen has previously discovered new types of primates, including two species of titi monkeys, one of which is the Callicebus bernhardi, the Bernhard monkey, named after Prince Bernhard. This is the first time that he has discovered a new, large land mammal.

Hilje Papma | alfa
Further information:
http://research.leidenuniv.nl/

More articles from Ecology, The Environment and Conservation:

nachricht Upcycling of PET Bottles: New Ideas for Resource Cycles in Germany
25.06.2018 | Fraunhofer-Institut für Betriebsfestigkeit und Systemzuverlässigkeit LBF

nachricht Dry landscapes can increase disease transmission
20.06.2018 | Forschungsverbund Berlin e.V.

All articles from Ecology, The Environment and Conservation >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Future electronic components to be printed like newspapers

A new manufacturing technique uses a process similar to newspaper printing to form smoother and more flexible metals for making ultrafast electronic devices.

The low-cost process, developed by Purdue University researchers, combines tools already used in industry for manufacturing metals on a large scale, but uses...

Im Focus: First evidence on the source of extragalactic particles

For the first time ever, scientists have determined the cosmic origin of highest-energy neutrinos. A research group led by IceCube scientist Elisa Resconi, spokesperson of the Collaborative Research Center SFB1258 at the Technical University of Munich (TUM), provides an important piece of evidence that the particles detected by the IceCube neutrino telescope at the South Pole originate from a galaxy four billion light-years away from Earth.

To rule out other origins with certainty, the team led by neutrino physicist Elisa Resconi from the Technical University of Munich and multi-wavelength...

Im Focus: Magnetic vortices: Two independent magnetic skyrmion phases discovered in a single material

For the first time a team of researchers have discovered two different phases of magnetic skyrmions in a single material. Physicists of the Technical Universities of Munich and Dresden and the University of Cologne can now better study and understand the properties of these magnetic structures, which are important for both basic research and applications.

Whirlpools are an everyday experience in a bath tub: When the water is drained a circular vortex is formed. Typically, such whirls are rather stable. Similar...

Im Focus: Breaking the bond: To take part or not?

Physicists working with Roland Wester at the University of Innsbruck have investigated if and how chemical reactions can be influenced by targeted vibrational excitation of the reactants. They were able to demonstrate that excitation with a laser beam does not affect the efficiency of a chemical exchange reaction and that the excited molecular group acts only as a spectator in the reaction.

A frequently used reaction in organic chemistry is nucleophilic substitution. It plays, for example, an important role in in the synthesis of new chemical...

Im Focus: New 2D Spectroscopy Methods

Optical spectroscopy allows investigating the energy structure and dynamic properties of complex quantum systems. Researchers from the University of Würzburg present two new approaches of coherent two-dimensional spectroscopy.

"Put an excitation into the system and observe how it evolves." According to physicist Professor Tobias Brixner, this is the credo of optical spectroscopy....

All Focus news of the innovation-report >>>

Anzeige

Anzeige

VideoLinks
Industry & Economy
Event News

Leading experts in Diabetes, Metabolism and Biomedical Engineering discuss Precision Medicine

13.07.2018 | Event News

Conference on Laser Polishing – LaP: Fine Tuning for Surfaces

12.07.2018 | Event News

11th European Wood-based Panel Symposium 2018: Meeting point for the wood-based materials industry

03.07.2018 | Event News

 
Latest News

Detecting damage in non-magnetic steel with the help of magnetism

23.07.2018 | Materials Sciences

Researchers move closer to completely optical artificial neural network

23.07.2018 | Information Technology

Enabling technology in cell-based therapies: Scale-up, scale-out or program in-place

23.07.2018 | Health and Medicine

VideoLinks
Science & Research
Overview of more VideoLinks >>>