Navigation Links
Species reemergence after collapse: Possible but different
Date:5/20/2011

Species pairs that disappear through hybridization after human-induced changes to the environment can reemerge if the disturbance is removed, according to a new mathematical model that shows the conditions under which reemergence might happen.

The findings, published in the journal Evolution, are important for conservationists and ecosystem managers interested in preserving, or even restoring, systems that have been disturbed by human activity.

By simulating environmental disturbances that reduce the ability of individuals to identify and select mates from their own species, the model explores the mechanisms that cause hybridization between closely-related species. Hybridization can lead to population decline and the loss of biodiversity. For instance, certain species of stickleback fish have collapsed into hybrid swarms as water clarity in their native lakes has changed, and certain species of tree frogs have collapsed as vegetation has been removed around their shared breeding ponds. Such hybrid swarms can replace the original species.

"What is happening isn't just speciation in reverse. The model shows that populations after collapse are likely to be different from the parental populations in ways that affect the future evolution of the system," said Tucker Gilman, postdoctoral fellow at the National Institute for Mathematical and Biological Synthesis and the paper's lead author.

According to the model, the reemergence of species pairs was more likely when disturbances were strong than when they were weak, and most likely when disturbances were quickly corrected. However, even temporary bouts of hybridization often led to substantial homogenization of species pairs. This suggests that ecosystem managers may be able to refill ecological niches, but probably won't be able to resurrect lost species after species collapse.

"The encouraging news from an ecosystems service point of view is that, if we act quick
'/>"/>

Contact: Catherine Crawley
ccrawley@nimbios.org
865-974-9350
National Institute for Mathematical and Biological Synthesis (NIMBioS)
Source:Eurekalert

Page: 1 2

Related biology news :

1. Social network helps in discovery of a species of plant lice for the first time in Europe
2. Anthropologist discovers new fossil primate species in West Texas
3. Aggressive male mating behavior can endanger species
4. Species are to ecosystems as cells are to the human body, according to a mathematical model
5. Latitude and rain dictated where species lived
6. How ants tame the wilderness: Rainforest species use chemicals to identify which plants to prune
7. Deepwater Horizon spill threatens more species than legally protected
8. Beneficial bacteria help repair intestinal injury by inducing reactive oxygen species
9. Could bacterial hitchhikers influence formation of new host species?
10. Jump in communication skills led to species explosion in electric fishes
11. Protecting your garden from invasive species
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:7/21/2015)... Sweden , July 21, 2015 Today, ... FPC1025. Already received as well as expected revenues in 2015 that ... in FPC,s communicated revenue guidance of approximately 2,200 MSEK for 2015. ... is a leading smartphone manufacturer in China ... selected FPC1 02 5 for Axon ...
(Date:7/21/2015)... , July 21, 2015 Passwords ... as seen in the recent U.S. Office of ... solution to the infosec conundrum, but developers and ... stored. To address this dilemma, Biometrics-as-a-Service provider HYPR ... Biometric Tokenization SDK for third party integration. ...
(Date:7/13/2015)... JOSE, Calif. , July 13, 2015 /PRNewswire/ ... leading developer of human interface solutions, today announced ... generation touch and display driver integration (TDDI) product ... is the first to combine Synaptics , ... with proven display driver technology developed in the ...
Breaking Biology News(10 mins):FPC's Touch Fingerprint Sensor FPC1025 in ZTE's Smartphone Axon 2HYPR Corp. Launches Industry First Biometric Tokenization Platform 2HYPR Corp. Launches Industry First Biometric Tokenization Platform 3HYPR Corp. Launches Industry First Biometric Tokenization Platform 4Synaptics Announces Sampling of Second Generation TDDI Solutions 2Synaptics Announces Sampling of Second Generation TDDI Solutions 3
... The Federation of American Societies for Experimental ... the Science Research Conference (SRC): Glucose transport: Gateway ... Science Research Conference "Glucose transport: Gateway for Metabolic ... role of glucose transport in the control of ...
... of American Societies for Experimental Biology (FASEB) announces ... Conference (SRC): Mitochondrial Assembly and Dynamics in Health, ... Mitochondrial Assembly and Dynamics in Health, Disease and ... where diverse aspects of mitochondrial biology and dysfunction ...
... American Societies for Experimental Biology (FASEB) announces the ... (SRC): Neural Mechanisms in Cardiovascular Regulation. The ... Cardiovascular Regulation, is an important and unique scientific ... regulate normal cardiovascular function, and how dysregulation of ...
Cached Biology News:
(Date:7/24/2015)... July 24, 2015  Champions Oncology (OTC-BB: CSBR), a ... and services to personalize the development and use of ... and operational results for the fourth quarter and fiscal ... 28, 2015, before market open. The company ... that day at 9:00 a.m. EDT (6:00 a.m. PDT). ...
(Date:7/24/2015)... -- The global next generation sequencing ... by 2022, growing at an estimated CAGR of 40.1% ... by Grand View Research, Inc. Development of faster, more ... significant reduction in cost of sequencing one base pair. ... of next generation sequencing throughout the forecast period. Revenue ...
(Date:7/23/2015)... LOS ANGELES , July 23, 2015 ImmunoCellular ... plans to report financial results for the second quarter 2015 ... hold a conference call and webcast on that day at ... results and provide a business update. The call will be ...   , , , LIVE CALL: ...
(Date:7/23/2015)... ... July 23, 2015 , ... One hundred years ago ... 1915 National Model Aeroplane Competition, with hopes of winning the Henry S. Villard Trophy. ... centennial. , Participants will have the opportunity to build a Free Flight fantasy club ...
Breaking Biology Technology:Champions Oncology to Announce Fourth Quarter Financial Results on Tuesday, July 28 2Next Generation Sequencing (NGS) Market To Reach $27.8 Billion By 2022: Grand View Research, Inc. 2Next Generation Sequencing (NGS) Market To Reach $27.8 Billion By 2022: Grand View Research, Inc. 3Next Generation Sequencing (NGS) Market To Reach $27.8 Billion By 2022: Grand View Research, Inc. 4Next Generation Sequencing (NGS) Market To Reach $27.8 Billion By 2022: Grand View Research, Inc. 5ImmunoCellular Therapeutics to Report Second Quarter 2015 Financial Results on August 6, 2015 2Academy of Model Aeronautics to Start Online Fantasy Flight Competition 2
... NEW YORK, August 28 XTL Biopharmaceuticals,Ltd. (NASDAQ: ... biopharmaceutical company,engaged in the acquisition, development and commercialization ... particularly,neuropathic pain and hepatitis C, today announced that ... Company,s depositary bank,The Bank of New York, will ...
... PARIS, August 28 ExonHit Therapeutics, a drug,and ... discovery,collaboration with Allergan Inc. (NYSE: AGN ), ... reached a success milestone.,As a result of the ... human,clinical testing will be initiated on the first ...
... (Nasdaq:,IDMI) today announced that Jeffrey W. Sherman, M.D., F.A.C.P. ... Senior Vice President,of Research and Development. Dr. Sherman will ... and CEO Timothy P. Walbert. Dr. Sherman brings ... and will lead the regulatory and clinical strategy for ...
Cached Biology Technology:Processing Fees on ADRs to be Waived for two Months 2Processing Fees on ADRs to be Waived for two Months 3ExonHit Therapeutics: Allergan and ExonHit's First Collaboration Compound to Begin Human Clinical Trials 2ExonHit Therapeutics: Allergan and ExonHit's First Collaboration Compound to Begin Human Clinical Trials 3IDM Pharma Names Dr. Jeffrey W. Sherman Chief Medical Officer and Senior Vice President of Research and Development 2IDM Pharma Names Dr. Jeffrey W. Sherman Chief Medical Officer and Senior Vice President of Research and Development 3IDM Pharma Names Dr. Jeffrey W. Sherman Chief Medical Officer and Senior Vice President of Research and Development 4IDM Pharma Names Dr. Jeffrey W. Sherman Chief Medical Officer and Senior Vice President of Research and Development 5
PMM2 Immunogen: PMM2 (NP_000294, 47 a.a. ~ 112 a.a) partial recombinant protein with GST tag. Storage: -20 C, Avoid Freeze/Thaw Cycles *Available for distribution in the US only...
HOXC11 Antibody...
Rabbit polyclonal to Raf1 ( Abpromise for all tested applications). entrezGeneID: 5894 SwissProtID: P04049...
Sheep polyclonal to hCG beta core fragment ( Abpromise for all tested applications). Antigen: Full length native protein (purified) from human urine. Entrez GeneID: 1082 Swiss Protein ID...
Biology Products: