Navigation Links
Sequence matters in droughts and floods
Date:1/8/2009

When extremes of drought and flood come in rapid succession, the extent of damage to vegetation may depend in part on the sequence of those events, according to a new study published in The American Naturalist.

The study, which focused on tree species common to the Everglades in Florida, found that seedlings maintained higher growth rates and were less likely to die when subjected to drought first then flood, rather than vice versa. The findings could have significant implications for predicting how vegetation responds to climate extremesespecially amid forecasts of increasingly severe droughts and floods associated with climate change, say authors ShiLi Miao (South Florida Water Management), Chris B. Zou and David D. Breshears (both University of Arizona).

According to Dr. Miao, most previous studies on how vegetation responds to hydrological events have been based largely on responses to a single hydrological condition. Few studies have investigated multiple events in succession.

"Our research suggests that you can't really predict how the plants will respond to combinations of drought and flood by studies that look just at a single drought or a single flood," Dr. Miao said. "We found that plants respond very differently depending on the sequence of flood and drought."

In a greenhouse, Dr. Miao's team subjected seedlings to sequences of conditions that simulated drought and flood, with each phase lasting four months.

The three species chosen for the experiments have varying tolerances to hydrological events. The pond-apple tree (annona glabra) tends to be flood tolerant. The gumbo-limbo (bursera simaruba, also known as West Indian birch) tends to be drought tolerant. The red maple (acer rabrum, also known as swamp maple) has intermediate tolerances to drought and flood.

Each species tested showed higher mortality and lower growth rate when flood was first in the sequence, compared to when drought
'/>"/>

Contact: Kevin Stacey
kstacey@uchicago.edu
773-834-0386
University of Chicago Press Journals
Source:Eurekalert

Page: 1 2

Related biology news :

1. Meth exposure in young adults leads to long-term behavioral consequences
2. First individual genome sequence published
3. Inconsistencies with Neanderthal genomic DNA sequences
4. Microarray sequence capture speeds large-scale resequencing of targeted genomic regions
5. Scientists complete genome sequence of fungus responsible for dandruff, skin disorders
6. What are the causes and consequences of childhood obesity?
7. Tiny genetic differences have huge consequences: McGill researchers
8. Bacterium sequenced makes rare form of chlorophyll
9. Washington University increases fleet of Roche Genome Sequencer FLX Systems
10. Washington University unveils draft sequence of corn genome
11. Giant panda genome to be sequenced
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:9/18/2014)... tropical rabbitfish which have devastated algal forests in the ... entire Mediterranean basin if their distribution continues to expand ... study, by an international team of researchers led by ... Tomas of the Mediterranean Institute for Advanced Studies in ... ., Members of the team surveyed more than 1000 ...
(Date:9/18/2014)... of camouflage: you don,t just blend in, the background ... uncommon as you might think. Kathryn Feller, from the ... larval life stages of many marine species are transparent. ... most creatures cannot make transparent. Feller explains that the ... eye unit with an opaque pigment to prevent light ...
(Date:9/17/2014)... for the Arts and Humanities has received a $260,000 ... two-year project, "The Boundaries of the Human in the ... support a wide-ranging series of events aimed at exploring ... involves artists and researchers who are exploring the boundaries ... of humanism, and the other involves the increasingly influential ...
Breaking Biology News(10 mins):Tropical fish a threat to Mediterranean Sea ecosystems 2Transparent larvae hide opaque eyes behind reflections 2Mellon Foundation awards grant for major project in the humanities and sciences 2
... Drugs that target the way cells convert nutrients ... range of conditions including heart attack and stroke. ... a team led by Massachusetts General Hospital (MGH) researchers ... drug, that can shift cellular energy metabolism processes in ...
... proteins found in our intestines can recognize and kill bacteria ... at Emory University School of Medicine have discovered. The ... appear in the journal Nature Medicine . Many ... surfaces of bacteria, but these proteins are different because they ...
... 2010) The wait is over for 16-year-old Francesco "Frank" ... heart in a nine-hour transplant operation at Texas Children,s Heart ... child ever discharged from a pediatric hospital with an implanted ... pediatric patients with VADs remained in the hospital, often in ...
Cached Biology News:Shifting cellular energy metabolism may help treat cardiovascular disease 2Shifting cellular energy metabolism may help treat cardiovascular disease 3Bacteria-killing proteins cover blood type blind spot 2Bacteria-killing proteins cover blood type blind spot 3Texas Children's discharges history-making patient 2
(Date:9/18/2014)... , Sept. 18, 2014 /PRNewswire-iReach/ -- DeepResearchReports.com ... China Acetic Acid Industry" and "2014 Deep Research ... reports to its research database. Photo ... Deep Research Report on Global and China Acetic ... report on China and ...
(Date:9/18/2014)... September 18, 2014 ... http://www.researchandmarkets.com/research/czvg3s/biocompatible ) has announced the addition ... Global Strategic Business Report" report ... ,This report analyzes the worldwide markets ... by the following Product Segments: Polymeric ...
(Date:9/18/2014)... DUBLIN , Sept. 18, 2014 ... the "Global and Chinese Stem Cell Industry Report, ... Stem cells are undifferentiated biological cells that can differentiate ... produce more stem cells. Stem cell therapy can be ... of hematological system disease), nervous system diseases, damage or ...
(Date:9/18/2014)... 2014 Research and Markets has ... (Polymerase Chain Reaction, In-situ hybridization, Immunohistochemistry) Market - Trends ... The global companion diagnostics market is ... 2014 to 2019. Factors such as rising need for ... diagnostics by the pharmaceutical industry, support from regulatory authorities, ...
Breaking Biology Technology:Acetic Acid Market & Sodium Stannate Industry (China, Global) Research Report 2Acetic Acid Market & Sodium Stannate Industry (China, Global) Research Report 3Acetic Acid Market & Sodium Stannate Industry (China, Global) Research Report 4Biocompatible Materials - Global Strategic Business Report 2014 2Biocompatible Materials - Global Strategic Business Report 2014 3Global and Chinese Stem Cell Industry Report, 2014-2017 2Global and Chinese Stem Cell Industry Report, 2014-2017 3Global Companion Diagnostics (Polymerase Chain Reaction, In-situ hybridization, Immunohistochemistry) Market - Trends & Forecasts to 2019 2Global Companion Diagnostics (Polymerase Chain Reaction, In-situ hybridization, Immunohistochemistry) Market - Trends & Forecasts to 2019 3
... 5 , - Exchange: OTCBB, Immureboost Inc. announced ... Inc., Fountain Healthy Aging Inc. said this approval follows ... Directors and the Shareholders,of the Company., CEO, Dr Tony ... a,new direction and a completely new business plan ", ...
... the first to use rapid, automated DNA sequencing to ... perform microbial ,fingerprinting, ... in the,development of state of the art genomic and informational ... Patent,and Trademark Office (USPTO) recently issued U.S. Patent no. 7,449,808, ...
... 5 /Xinhua-PRNewswire-FirstCall/ -- Huifeng Bio-,Pharmaceutical Technology, Inc (OTC ... producer of plant extracts and pharmaceutical raw,materials for ... China, is pleased to announce a Letter of ... Qinba Xintong Medical Ltd. ("Qinba").,Under the proposed terms ...
Cached Biology Technology:Immureboost Inc Announces a Change of Name to Fountain Healthy Aging Inc 2eGenomics Awarded First U.S. Patent Covering Rapid DNA Sequencing Technology Platform to Control Hospital-Acquired Infections 2eGenomics Awarded First U.S. Patent Covering Rapid DNA Sequencing Technology Platform to Control Hospital-Acquired Infections 3Huifeng Bio-Pharmaceutical (HFGB) Enters into Letter of Intent with Xi'an Qinba Xintong Medical Ltd. 2
... The StatMatic I provides a convenient and ... culture work. Used with an eight-port disposable ... not possible with multi-channel pipettes. The eight-port ... in volumes of 100, 200, 250, or ...
384 Well PCR Plate Carrier for Thermo-Sealer...
These 18x18 square No.1 Corning cover glasses are made from No. 0211 zinc titania glass and are 0.16 to 0.19mm thick....
... are hydrophobic cover slips for in ... genomic arrays on glass slides., ... Hybri-slips do not adsorb probes. , ... to use. , Avoid RNA degradation-Hybri-slips ...
Biology Products: