Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Biodiversity Maps to Help Conservation in East Africa

08.07.2008
Conservation biologists from UC San Diego are collaborating with scientists from the African Conservation Centre and other institutions to map patterns of biodiversity and land use in East Africa in unprecedented detail.

Their maps, combined with climate models, will project how climate change will alter biodiversity and help to shape policy for setting aside conservation easements.

Wildlife, people and livestock have weathered past variation in climate by shifting their seasonal migration patterns though the varied of ecological zones in the Great Rift Valley, which runs through the center of Kenya and Tanzania.

“When you go from the bottom of the rift, it’s almost desert. By the time you get up to the top, no more than 15-20 km away, it’s rainforest,” said David Western, adjunct professor of biology at UCSD, director of the African Conservation Centre in Nairobi and former director of Kenya Wildlife Service. “Previously this was communal land where people moved with the seasons and they moved with changing climates.”

Now, as climate change is expected to shift the balance between habitats in this region, increased farming has fragmented the landscape, Western said. “It’s removed the highland grazing for both livestock and wildlife. The crop residues can keep the livestock going, but it’s a complete lockout for wildlife.”

The project will identify areas that, if protected, would allow both wildlife and pastoralists to move to more favorable conditions as climate shifts. “What we want to do is identify key pathways where, working with landowners, you can actually keep the land open, through a conservation easement,” Western said.

To determine how the centers of biological richness are likely to shift, UCSD biology assistant professor Walter Jetz and Daniel Kissling, a postdoctoral fellow, have mapped the ranges of 2,700 species of birds, mammals, amphibians and reptiles across all of Kenya, Tanzania, Uganda, Rwanda and Burundi.

For each species, they have plotted an ‘ecological envelope.’ “Within those boundaries, we are likely to encounter those species,” Jetz said. “With the distribution map, we can determine the species’ climatic niche.”

The next step, Jetz said, is to revise their maps using satellite images and field notes, to a finer scale. Their current maps are drawn to a 100 kilometer resolution. “You need some refinement if you want to be able to make predictions, so we are taking global maps and refining them to the scale of actual conservation decision-making: to a 10 or 20 km resolution,” Jetz said.

Jetz’s group’s maps of animal diversity will be combined with those for plants and human land use to gain a fuller picture of how ranges and interactions between species are likely to shift under different climate changes. A plant and an animal may respond differently to the same climate shift, for example, causing their ranges to diverge until the two species no longer co-exist.

At a recent meeting at the University of York in the UK, participants in the project agreed to join their completed distribution maps in a single database, and to combine that multilayered map with two climate models – one based on the minimum expected change and another that anticipates larger climate shifts – to develop six future ecological scenarios for East Africa: two each for the years 2025, 2055 and 2085. These scenarios will inform decisions about setting aside additional reserves in Kenya and Tanzania.

“The organization David Western represents has close ties to the stakeholders in Kenya, and therefore there is hope that some of the findings will actually be implemented,” Jetz said. “We sense a clear willingness in Kenya and Tanzania to put more reserves in place to mitigate the impacts of global change. For that they are looking to scientists for guidance. So we have a situation where good science can lead to significant basic insights and also make a difference for the people and their wildlife. We are very excited to be involved.

The project is funded by the Liz Claiborne Art Ortenberg Foundation. Other participating institutions include the Missouri Botanical Garden; the University of York, UK; and Clark University.

Contact:
Walter Jetz, wjetz@ucsd.edu, (858) 822-6731
David Western, dwestern@africaonline.co.ke, +254 20 891360

Susan Brown | Newswise Science News
Further information:
http://www.ucsd.edu

More articles from Ecology, The Environment and Conservation:

nachricht Global threat to primates concerns us all
19.01.2017 | Deutsches Primatenzentrum GmbH - Leibniz-Institut für Primatenforschung

nachricht Reducing household waste with less energy
18.01.2017 | FIZ Karlsruhe – Leibniz-Institut für Informationsinfrastruktur GmbH

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: Traffic jam in empty space

New success for Konstanz physicists in studying the quantum vacuum

An important step towards a completely new experimental access to quantum physics has been made at University of Konstanz. The team of scientists headed by...

Im Focus: How gut bacteria can make us ill

HZI researchers decipher infection mechanisms of Yersinia and immune responses of the host

Yersiniae cause severe intestinal infections. Studies using Yersinia pseudotuberculosis as a model organism aim to elucidate the infection mechanisms of these...

Im Focus: Interfacial Superconductivity: Magnetic and superconducting order revealed simultaneously

Researchers from the University of Hamburg in Germany, in collaboration with colleagues from the University of Aarhus in Denmark, have synthesized a new superconducting material by growing a few layers of an antiferromagnetic transition-metal chalcogenide on a bismuth-based topological insulator, both being non-superconducting materials.

While superconductivity and magnetism are generally believed to be mutually exclusive, surprisingly, in this new material, superconducting correlations...

Im Focus: Studying fundamental particles in materials

Laser-driving of semimetals allows creating novel quasiparticle states within condensed matter systems and switching between different states on ultrafast time scales

Studying properties of fundamental particles in condensed matter systems is a promising approach to quantum field theory. Quasiparticles offer the opportunity...

Im Focus: Designing Architecture with Solar Building Envelopes

Among the general public, solar thermal energy is currently associated with dark blue, rectangular collectors on building roofs. Technologies are needed for aesthetically high quality architecture which offer the architect more room for manoeuvre when it comes to low- and plus-energy buildings. With the “ArKol” project, researchers at Fraunhofer ISE together with partners are currently developing two façade collectors for solar thermal energy generation, which permit a high degree of design flexibility: a strip collector for opaque façade sections and a solar thermal blind for transparent sections. The current state of the two developments will be presented at the BAU 2017 trade fair.

As part of the “ArKol – development of architecturally highly integrated façade collectors with heat pipes” project, Fraunhofer ISE together with its partners...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

Sustainable Water use in Agriculture in Eastern Europe and Central Asia

19.01.2017 | Event News

12V, 48V, high-voltage – trends in E/E automotive architecture

10.01.2017 | Event News

2nd Conference on Non-Textual Information on 10 and 11 May 2017 in Hannover

09.01.2017 | Event News

 
Latest News

Bodyguards in the gut have a chemical weapon

20.01.2017 | Life Sciences

SF State astronomer searches for signs of life on Wolf 1061 exoplanet

20.01.2017 | Physics and Astronomy

Treated carbon pulls radioactive elements from water

20.01.2017 | Materials Sciences

VideoLinks
B2B-VideoLinks
More VideoLinks >>>