Navigation Links
Early settlers rapidly transformed New Zealand forests with fire
Date:12/13/2010

in drier eastern forests where fires were severe enough to clear vast tracts of forest and cause significant erosion of soils and nutrients. Because the initial Māori populations were small, we can only conclude that forests were highly vulnerable to burning," McWethy said.

Wilmshurst said archaeological evidence suggests that successful cultivation of introduced food crops, such as kumara and taro, was only possible in warmer northern coastal areas and the starch-rich rhizomes of bracken fern, which replaced the burnt forests, provided an essential part of Māori diets in colder regions.

"In their efforts to increase the productivity of lowland forests for food, Māori encouraged a more heterogeneous and economically useful fern-shrubland at the same time as making travel easier to search for food and stone resources for making tools," Wilmshurst said.

Newly derived records of past climate enabled the team to disprove the hypothesis that unusual climate conditions encouraged fire at around the time of Māori settlement.

"Our evidence suggests that human activity was the main cause of the fires, and that these fires were not related to any unusually dry or warm conditions at the time," McGlone said.

Before human arrival in New Zealand, fire was naturally rare in most forests, with lightning-started fires occurring perhaps only once every 1-2 thousand years.

"What is remarkable is that small mostly subsistence-based groups of people were able to burn large tracts of forests throughout the relatively large South Island (151,215 km2) in only a few decades," McWethy said.

Whitlock said "Changes in the fossils and chemistry of the lake sediments showed that soil erosion followed initial forest clearance. In some regions, this degradation was exacerbated by intensive clearance in the 19th Century by European pastoralists who developed the land for grazing sheep and farming."

Th
'/>"/>

Contact: Melynda Harrison
melynda.harrison@montana.edu
406-994-7371
Montana State University
Source:Eurekalert

Page: 1 2 3

Related biology news :

1. Higher co-payments increase chance of early discontinuation, inadequate use of breast cancer therapy
2. Phase III study compared neoadjuvant therapy with lapatinib or trastuzumab for early breast cancer
3. Novel compounds show early promise in treatment of Parkinsons, Huntingtons, Alzheimers
4. Early safety results promising for Phase I/II trial of gene therapy treatment of hemophilia B
5. SomaLogic researchers describe revolutionary new approach to protein analysis and application to early diagnosis of lung cancer
6. U of M researcher helps unlock 30 new genes responsible for early onset puberty
7. UGA researchers identify key enzyme that regulates the early growth of breast cancer cells
8. PAREXEL Completes 200 Patient Studies In Its Early Phase Units Over Three Years
9. Arsenic early in treatment improves survival for leukemia patients
10. Brookhaven chemist Jacob Hooker receives Presidential Early Career Award
11. Studying the metabolome of smokers, Lombardi researchers find early signs of damage
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:4/27/2015)... , Apr. 27, 2015 Profile Solutions, Inc. ... and security systems is pleased to announce that Dr ... a consultant and member of its scientific advisory board. ... known as a thought leader in technology-enhanced learning models. ... Group, and has published studies and books focused on ...
(Date:4/20/2015)... , April 20, 2015 The ... Glenbeigh Records Management (GRM), Ireland,s ... Dubai Islamic Bank. Having built up an impressive track record ... a leading player within the records management sector in ... to double is GCC staffbase and employ a further eight ...
(Date:4/14/2015)... 2015 NXT-ID, Inc. (NASDAQ: NXTD ) ... on the growing mobile commerce market, announces that its ... New York Design Awards under the category  ,Product Design ... Design Awards are part of a global multi-disciplinary awards ... from the marketplace, industry and judging panel. Winners will ...
Breaking Biology News(10 mins):Profile Solutions Names Medicinal Cannabis, Agriculture and Technology Expert Dr. Gerry Bedore to its Scientific Advisory Board 2Profile Solutions Names Medicinal Cannabis, Agriculture and Technology Expert Dr. Gerry Bedore to its Scientific Advisory Board 3Profile Solutions Names Medicinal Cannabis, Agriculture and Technology Expert Dr. Gerry Bedore to its Scientific Advisory Board 4Glenbeigh Records Management Wins Contract With Dubai Islamic Bank 2Glenbeigh Records Management Wins Contract With Dubai Islamic Bank 3NXT-ID's Wocket Smart Wallet Nominated for 2015 New York Design Awards in 'Product Design- Technology' 2NXT-ID's Wocket Smart Wallet Nominated for 2015 New York Design Awards in 'Product Design- Technology' 3
... Dec 03, 2010, Seoul, S. Korea Institut Pasteur ... & Development of Toulouse, France to continue research on ... agreement drawn up in the fall of 2009, illustrates ... The technology platform will be used to pinpoint active, ...
... of the most promising technological research projects at University ... of federal cash to help them through the most ... commercial market. With $5.1 million in federal funding, ... of Maryland research institutions and the U.S. Army Research ...
... has just released the first issue of its newest ... JIPM ), which is available online for free. ... that covers the field of integrated pest management. The ... is engaged in any aspect of integrated pest management, ...
Cached Biology News:$5.1 million Army-Md. alliance speeds university research to market 2$5.1 million Army-Md. alliance speeds university research to market 3$5.1 million Army-Md. alliance speeds university research to market 4$5.1 million Army-Md. alliance speeds university research to market 5Journal of Integrated Pest Management is now online 2
(Date:5/1/2015)... TRIANGLE PARK, N.C. , May 1, 2015  United ... Roger Jeffs , Ph.D., President and Co-Chief Executive Officer of ... company,s business at the Deutsche Bank 40 th Annual ... The presentation will take place on Wednesday, May ... accessed via a live webcast on the United Therapeutics website ...
(Date:4/30/2015)... --  Tamir Biotechnology , a leading developer of RNA ... antiviral therapy program. Clinical Progress ... evaluated and considered by a number of clinicians on ... first quarter of 2015, the company participated in the ... of Potential Treatments and Vaccines For Ebola In West ...
(Date:4/30/2015)... (PRWEB) April 30, 2015 Nitto ... today announces its increased capacity and production capability ... increased client variety and service fulfillment continues to ... improve process throughput capacities. , ... newly installed downstream process equipment at its Milford, ...
(Date:4/30/2015)... Hungary (PRWEB) April 30, 2015 ... lab notebook with integrated protocols and specimen management ... software solutions and consulting services for life science ... development of Labguru’s newest feature: chemical structure and ... domain features for biologists, bio-chemists, and more, the ...
Breaking Biology Technology:Tamir Biotechnology Provides Update on TMR004 Development Against Mutating Ebola 2Tamir Biotechnology Provides Update on TMR004 Development Against Mutating Ebola 3Tamir Biotechnology Provides Update on TMR004 Development Against Mutating Ebola 4Biotechnology Manufacturer Nitto Avecia Expands Capacity to Meet Client Demand 2Labguru Integrates ChemAxon's Marvin JS, to Enhance Functionality for Chemists 2
... a simple, single-step process, engineers and scientists at ... a technique to direct benign, filamentous viruses called ... for materials with a wide range of properties. ... researchers caused the viruses to self-assemble into hierarchically ...
... and scientists from Reproductive Medicine Associates of New ... groundbreaking research study entitled Cleavage Stage Embryo ... Biopsy Does Not: A Novel Paired Analysis of ... study, led by Richard T. Scott, M.D. and ...
... Process automation specialist Endress+Hauser has acquired a stake in ... distributes sensors, hardware and software for bioprocess engineering. ... the area of biotechnology through this cooperation. "Biotechnological procedures ... not only in the life sciences industry but also ...
Cached Biology Technology:Manufacturing goes viral 2Manufacturing goes viral 3Manufacturing goes viral 4Revolutionary IVF Study May Change the Way Embryos are Biopsied for Genetic Disease 2Revolutionary IVF Study May Change the Way Embryos are Biopsied for Genetic Disease 3Endress+Hauser and Finesse Solutions Form Strategic Partnership - Swiss Process Automation Provider Invests in US Biotech Company 2Endress+Hauser and Finesse Solutions Form Strategic Partnership - Swiss Process Automation Provider Invests in US Biotech Company 3
Affinity Purified Rabbit Anti-mouse sRANKL Biotinylated Polyclonal Antibody...
Rabbit polyclonal to FOXJ2 ( Abpromise for all tested applications). entrezGeneID: 55810 SwissProtID: Q9P0K8...
Selenoprotein P Purified Anti-Mouse clone 35, Isotype Mouse IgG 2b , 50 µg Consult technical datasheet for details....
Mouse monoclonal [3B6] to HSV1 + HSV2 ICP5 Major Capsid Protein ( Abpromise for all tested applications)....
Biology Products: