Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

WCS Radio Collars Iconic South American Mammal

15.01.2015

Guanaco populations rebounding in Tierra del Fuego now come in conflict with sheep ranchers and loggers

Where the Guanaco Roam: New Study Documents Wanderings of South America’s Iconic Hoofed Mammal


WCS

WCS’s Andrés Novaro examines a young guanaco before releasing it.

• Guanaco populations rebounding in Tierra del Fuego now come in conflict with sheep ranchers and loggers

• WCS scientific team radio collared guanacos and followed them in and around Karukinka Natural Park in Chile

• Guanacos are wild cousins to llamas

• Study: online edition of journal Oryx

Guanacos are back – and getting into trouble – says a team of scientists from WCS (Wildlife Conservation Society) tracking these iconic hoofed mammals across a variety of landscapes on the Chilean side of the island of Tierra del Fuego.

The team says that guanacos – wild cousins to domestic llamas – are coming into increased conflict with sheep ranchers and loggers. The results of their study indicate that better understanding guanacos’ seasonal movements, coupled with a limited science-based, sustainable a harvest of animals, may be the key to conserving this quintessential species of Tierra del Fuego.

The study appears in the online issue of the journal Oryx. Authors include: Claudio Moraga, Martín Funes, Cristóbal Pizarro, Cristóbal Briceno and Andrés Novaro of WCS.

Guanacos once numbered in the many millions in South America. In Tierra del Fuego, by the mid 1970s as a result of hunting, competition from sheep, and habitat degradation, the guanaco population had collapsed to approximately 7,000 individuals on the Chilean side of the island. Since then, guanaco numbers have recovered to more than 60,000 as a result of hunting restrictions and reduced sheep numbers.

The WCS team conducted seasonal counts of guanacos and fitted 10 animals with radio collars in and around Karukinka Natural Park, a vast wilderness owned and managed by WCS as a protected area. Before the animals were released, blood samples were taken so that the scientists could conduct complementary health and genetic tests.

The team found that while some guanacos were more sedentary, others conducted seasonal migrations spending time in grasslands in the summer and forests in the winter sometimes even crossing into Argentina. Once they ventured outside of the park, they often came into conflict with sheep ranchers and loggers.

High sheep densities and poor range conditions on the ranches reduced key forage resources available to guanacos forcing them into forests where they fed on seedlings affecting forest regeneration and increasing conflict with logging interests.

Guanaco density was highest in low-elevation areas with more grassland cover and little snow accumulation in winter. In these areas, guanaco density decreased with increasing livestock density.

Said lead author Claudio Moraga of WCS: “Our results provide insight into the interactions among guanacos, forests and livestock ranching, and may be used to reduce conflicts and guide conservation of Tierra del Fuego’s unique ecosystems. Ultimately, conservation of these ecosystems depends on reconciling the interests of livestock husbandry, guanaco conservation, and the timber industry.”

Chilean authorities hope that the sale of guanaco meat from recently allowed legal harvests will be viewed as a contribution to the economy of the Magallanes region. The authors say that harvesting guanacos may be a useful tool to promote guanaco conservation in parts of Tierra del Fuego, but it should be part of an integrated management strategy, and it must allow maintenance of key ecological processes such as seasonal migration between forests and grasslands.

Wildlife Conservation Society (WCS)
MISSION: WCS saves wildlife and wild places worldwide through science, conservation action, education, and inspiring people to value nature. VISION: WCS envisions a world where wildlife thrives in healthy lands and seas, valued by societies that embrace and benefit from the diversity and integrity of life on earth. To achieve our mission, WCS, based at the Bronx Zoo, harnesses the power of its Global Conservation Program in more than 60 nations and in all the world’s oceans and its five wildlife parks in New York City, visited by 4 million people annually. WCS combines its expertise in the field, zoos, and aquarium to achieve its conservation mission. Visit: www.wcs.org ; http://www.facebook.com/TheWCS ; http://www.youtube.com/user/WCSMedia  Follow: @thewcs.

Contact Information
CONTACT: STEPHEN SAUTNER: (1-718-220-3682; ssautner@wcs.org
JOHN DELANEY: (1-718-220-3275; jdelaney@wcs.org)

Stephen Sautner
Executive Director of Communications
ssautner@wcs.org
Phone: 718-220-3682

Stephen Sautner | newswise

More articles from Ecology, The Environment and Conservation:

nachricht Scientists team up on study to save endangered African penguins
16.11.2017 | Florida Atlantic University

nachricht Climate change: Urban trees are growing faster worldwide
13.11.2017 | Technische Universität München

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: A “cosmic snake” reveals the structure of remote galaxies

The formation of stars in distant galaxies is still largely unexplored. For the first time, astron-omers at the University of Geneva have now been able to closely observe a star system six billion light-years away. In doing so, they are confirming earlier simulations made by the University of Zurich. One special effect is made possible by the multiple reflections of images that run through the cosmos like a snake.

Today, astronomers have a pretty accurate idea of how stars were formed in the recent cosmic past. But do these laws also apply to older galaxies? For around a...

Im Focus: Visual intelligence is not the same as IQ

Just because someone is smart and well-motivated doesn't mean he or she can learn the visual skills needed to excel at tasks like matching fingerprints, interpreting medical X-rays, keeping track of aircraft on radar displays or forensic face matching.

That is the implication of a new study which shows for the first time that there is a broad range of differences in people's visual ability and that these...

Im Focus: Novel Nano-CT device creates high-resolution 3D-X-rays of tiny velvet worm legs

Computer Tomography (CT) is a standard procedure in hospitals, but so far, the technology has not been suitable for imaging extremely small objects. In PNAS, a team from the Technical University of Munich (TUM) describes a Nano-CT device that creates three-dimensional x-ray images at resolutions up to 100 nanometers. The first test application: Together with colleagues from the University of Kassel and Helmholtz-Zentrum Geesthacht the researchers analyzed the locomotory system of a velvet worm.

During a CT analysis, the object under investigation is x-rayed and a detector measures the respective amount of radiation absorbed from various angles....

Im Focus: Researchers Develop Data Bus for Quantum Computer

The quantum world is fragile; error correction codes are needed to protect the information stored in a quantum object from the deteriorating effects of noise. Quantum physicists in Innsbruck have developed a protocol to pass quantum information between differently encoded building blocks of a future quantum computer, such as processors and memories. Scientists may use this protocol in the future to build a data bus for quantum computers. The researchers have published their work in the journal Nature Communications.

Future quantum computers will be able to solve problems where conventional computers fail today. We are still far away from any large-scale implementation,...

Im Focus: Wrinkles give heat a jolt in pillared graphene

Rice University researchers test 3-D carbon nanostructures' thermal transport abilities

Pillared graphene would transfer heat better if the theoretical material had a few asymmetric junctions that caused wrinkles, according to Rice University...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

Ecology Across Borders: International conference brings together 1,500 ecologists

15.11.2017 | Event News

Road into laboratory: Users discuss biaxial fatigue-testing for car and truck wheel

15.11.2017 | Event News

#Berlin5GWeek: The right network for Industry 4.0

30.10.2017 | Event News

 
Latest News

NASA detects solar flare pulses at Sun and Earth

17.11.2017 | Physics and Astronomy

NIST scientists discover how to switch liver cancer cell growth from 2-D to 3-D structures

17.11.2017 | Health and Medicine

The importance of biodiversity in forests could increase due to climate change

17.11.2017 | Studies and Analyses

VideoLinks
B2B-VideoLinks
More VideoLinks >>>