HOME >> BIOLOGY >> NEWS
When lava flows and glaciers recede, predicting how species take over

Whenever an event such as a fire, clear cut, or lava flow creates an empty habitat, species arrive, interact, and assemble to form a new ecological communitya process known as "succession." How quickly does succession proceed" Most ecologists might expect change to be rapid at first and then decline as the community ages, but there was no systematic analysis of this idea until recently. In a study published in the June issue of the American Naturalist, ecologist Kristina Anderson of the University of New Mexico showed that in many communitiesranging from plants in abandoned agricultural fields to arthropods on carcassesspecies do indeed turn over most rapidly early in succession, when many new species arrive to take advantage of available resources. However, she also found that certain adverse conditionssuch as isolation of the new community or an unfavorable climatemay hinder the arrival of new species, thereby slowing the rate at which the community fills with species and sometimes causing peak rates of change to occur later in succession.

Anderson's study provides a framework to understand why communities mature at different rates. According to the author, "Understanding how quickly new ecological communities develop is fundamental to numerous ecological questions ranging from, 'How often should fires or clear cuts be allowed on landscapes"' to 'What determines how many species are found on an island"' yet we were unable to make many generalizations about succession rate. That is what motivated this study." In her study, Anderson first developed a method for quantifying rates of community change and how these vary as the community ages. She then collected data on over 60 different communitiesa novel approach in succession researchand documented the changes in species composition throughout succession. Using these results, she was able to relate temporal patterns in rates of community change to processes that limit colonization and persistence of spec
'"/>

Contact: Patricia Morse
pmorse@press.uchicago.edu
773-702-0446
University of Chicago Press Journals
22-May-2007


Page: 1 2

Related biology news :

1. Orbiter provides new hints of past groundwater flows on Mars
2. Brains reward circuit activity ebbs and flows with a womans hormonal cycle
3. Historic Colorado River streamflows reconstructed back to 1490
4. Go with the flow: How cells use biological flows to signal and organize
5. Map predicting spread of avian flu
6. Measuring plant diversity, predicting vulnerability to invasive species
7. Towards predicting late-stage radiation toxicity
8. Lost forest yields several new species
9. Surprising new species of light-harvesting bacterium discovered in Yellowstone
10. Smithsonians National Zoo researchers use electronic eggs to help save threatened species
11. One species, many genomes

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:1/27/2020)... ... , ... On Thursday, February 20, 2020 at 10am EST (3pm GMT/UK), join ... Richard Castle, Global Account Manager Medical Device at PRISYM ID for an ... timing deadlines, best practices in creating and submitting product data and best practices in ...
(Date:1/23/2020)... ATLANTA (PRWEB) , ... January 23, 2020 , ... ... to manufacture lifesaving mature red blood cells from stem cells. The red ... red blood cells, under strictly controlled conditions, for transfusion therapy and replaces the ...
(Date:1/22/2020)... ... January 21, 2020 , ... Modality ... supporting global regulatory applications, and executing global clinical trial operations. Milestone highlights ... a fastest growing company, and ISO 9001:2015 certification with the scope of ...
Breaking Biology News(10 mins):
(Date:2/3/2020)... ... February 03, 2020 , ... Ovation Travel Group ... Travel, Technology Industry Travel and Biotech/Healthcare Industry Travel Indexes. , All of the ... following statistics:, Average airfare price paid Domestically, Internationally ...
(Date:1/27/2020)... ... January 27, 2020 , ... Cerebyte, the leader in ... computing, today announced the availability of neuroscience of transformational leadership workshops. These highly ... neuroscience of leadership and change research to become great transformational leaders. The ...
(Date:1/23/2020)... ... 2020 , ... Ideal Implant CEO and President Robert S ... North American investor forums specializing in medical advancements. New technology was presented to ... on November 21, 2019 in New York City, and the Aesthetic Technology Summit ...
(Date:1/10/2020)... ... January 09, 2020 , ... A new report ... for the vendor qualification process, a critical element of clinical trial set up ... of the vendor qualification process creates delays in initiation in 7% of clinical ...
Breaking Biology Technology:
Cached News: