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:12/11/2014)... , Dec. 10, 2014  That blood pressure plays ... a while. Hypertension – the medical term for high blood ... early 1800s, and the inflatable cuff that,s used in measuring ... however, mean there,s nothing new about hypertension, its triggers and ... beliefs about the condition and the best ways to treat ...
(Date:12/10/2014)... 2014 CIE San Diego has launched an ... connective tissue that enhances care coordination among social service ... client-level information; earned a second $1 million grant from ... seniors aging in community and; will be recognized as ... th 4-6p. CIE San Diego today ...
(Date:12/4/2014)... BEACH GARDENS, Fla. , Dec. 3, 2014 ... management solutions, today announced that its DigitalPersona ® ... 4500 fingerprint readers have been deployed throughout First ... , South Carolina ... headquartered in Southern Pines, North Carolina ...
Breaking Biology News(10 mins):Research points to need for new approaches to treatment of high blood pressure 2Research points to need for new approaches to treatment of high blood pressure 3Research points to need for new approaches to treatment of high blood pressure 4Community Information Exchange San Diego Launches Pilot, Secures $1 Million Expansion Grant, and Becomes a "Live Well San Diego" Partner 2Community Information Exchange San Diego Launches Pilot, Secures $1 Million Expansion Grant, and Becomes a "Live Well San Diego" Partner 3Community Information Exchange San Diego Launches Pilot, Secures $1 Million Expansion Grant, and Becomes a "Live Well San Diego" Partner 4First Bank Partners with Crossmatch to Increase Log In Security 2First Bank Partners with Crossmatch to Increase Log In Security 3
... been shed on proteorhodopsin, the light-sensitive protein found in ... of Energy's Lawrence Berkeley National Laboratory (Berkeley Lab) and ... when the ability to respire oxygen is impaired, bacterium ... carry out vital life processes. , ...
... an increased risk of fetal heart problems when mothers ... an abstract presented by Yale School of Medicine researchers ... in San Francisco. , Congenital heart block (CHB) ... heart's electrical signaling from the upper to the lower ...
... system to produce antibodies that act against some essential ... can act against sperm, eggs or reproductive hormones, which ... ova. , Proponents of the technique, which ... as more humane than the conventional methods of controlling ...
Cached Biology News:Shedding new light on proteorhodopsin 2Shedding new light on proteorhodopsin 3Manipulating nature: Scientists query wildlife birth-control method 2
(Date:12/17/2014)... (PRWEB) December 17, 2014 Ipsen ... IPN; ADR: IPSEY), today announced that ... to as Somatuline®) was approved by the U.S. ... of gastroenteropancreatic neuroendocrine tumors (GEP-NETs) in adult patients ... or metastatic disease to improve progression-free survival (PFS). ...
(Date:12/17/2014)... 17, 2014 This report is ... Tubing industry. For an overview analysis, the report ... industry chain structure, industry overview, policy analysis, and ... industry has witnessed rapid development with key ... acquisitions. This report mentions quartz tubing upstream raw ...
(Date:12/17/2014)... Menlo Park, CA (PRWEB) December 17, 2014 ... Inc. announces today that it has entered into ... Daniels Midland Company (ADM) to apply DNA2.0’s proprietary ... industrial enzyme engineering process. , “We are extremely ... our ProteinGPS engineering platform. This proprietary bioengineering ...
(Date:12/17/2014)... 16, 2014  Vermillion, Inc. (NASDAQ: VRML ... today announced the next step in its expanded strategy ... provider with the naming of current Chief Operating Officer, ... Officer, while current Chairman of the Board and CEO ... Chairman. These changes are effective January 1, 2015. ...
Breaking Biology Technology:Ipsen Announces the FDA Approval of Somatuline® Depot® (lanreotide) Injection for the Treatment of Gastroenteropancreatic Neuroendocrine Tumors 2Ipsen Announces the FDA Approval of Somatuline® Depot® (lanreotide) Injection for the Treatment of Gastroenteropancreatic Neuroendocrine Tumors 3Ipsen Announces the FDA Approval of Somatuline® Depot® (lanreotide) Injection for the Treatment of Gastroenteropancreatic Neuroendocrine Tumors 4Ipsen Announces the FDA Approval of Somatuline® Depot® (lanreotide) Injection for the Treatment of Gastroenteropancreatic Neuroendocrine Tumors 5Ipsen Announces the FDA Approval of Somatuline® Depot® (lanreotide) Injection for the Treatment of Gastroenteropancreatic Neuroendocrine Tumors 6Ipsen Announces the FDA Approval of Somatuline® Depot® (lanreotide) Injection for the Treatment of Gastroenteropancreatic Neuroendocrine Tumors 7Ipsen Announces the FDA Approval of Somatuline® Depot® (lanreotide) Injection for the Treatment of Gastroenteropancreatic Neuroendocrine Tumors 82020 Quartz Tubing Market: Global Development & Forecasts Analysis Now at DeepResearchReports.com 2ADM and DNA2.0 Enter Into Protein Engineering Technology Access and Service Agreement 2Vermillion Names Valerie Palmieri CEO; James LaFrance to continue as Chairman of Board 2Vermillion Names Valerie Palmieri CEO; James LaFrance to continue as Chairman of Board 3Vermillion Names Valerie Palmieri CEO; James LaFrance to continue as Chairman of Board 4
... Herremans Joins SPO Medical to Endorse New... -- NEW YORK, October 5, 2010 ... ... --> ... s = ,; var first_result; // Results are keyed by longUrl, so we need to grab the ...
... Ore. Nanotechnology is about to emerge in the world ... approaches are needed to understand the implications for public health, ... and prevent possible risks, researchers say in a new report. ... Journal of Occupational and Environmental Health , scientists from Oregon ...
... Reportlinker.com announces that a new market research report ... Global Soft Tissue Allografts Industry ... the worldwide markets for Soft Tissue Allografts in ... Meniscus Allografts, and Tendon Allografts. The report provides ...
Cached Biology Technology:Philadelphia Eagles' Offensive Lineman Todd Herremans Joins SPO Medical to Endorse New SPO Wellness(TM) Product Line 2Philadelphia Eagles' Offensive Lineman Todd Herremans Joins SPO Medical to Endorse New SPO Wellness(TM) Product Line 3Philadelphia Eagles' Offensive Lineman Todd Herremans Joins SPO Medical to Endorse New SPO Wellness(TM) Product Line 4Philadelphia Eagles' Offensive Lineman Todd Herremans Joins SPO Medical to Endorse New SPO Wellness(TM) Product Line 5Philadelphia Eagles' Offensive Lineman Todd Herremans Joins SPO Medical to Endorse New SPO Wellness(TM) Product Line 6Philadelphia Eagles' Offensive Lineman Todd Herremans Joins SPO Medical to Endorse New SPO Wellness(TM) Product Line 7Philadelphia Eagles' Offensive Lineman Todd Herremans Joins SPO Medical to Endorse New SPO Wellness(TM) Product Line 8Philadelphia Eagles' Offensive Lineman Todd Herremans Joins SPO Medical to Endorse New SPO Wellness(TM) Product Line 9Philadelphia Eagles' Offensive Lineman Todd Herremans Joins SPO Medical to Endorse New SPO Wellness(TM) Product Line 10New approaches needed to gauge safety of nanotech-based pesticides 2New approaches needed to gauge safety of nanotech-based pesticides 3Reportlinker Adds Global Soft Tissue Allografts Industry 2Reportlinker Adds Global Soft Tissue Allografts Industry 3Reportlinker Adds Global Soft Tissue Allografts Industry 4Reportlinker Adds Global Soft Tissue Allografts Industry 5Reportlinker Adds Global Soft Tissue Allografts Industry 6Reportlinker Adds Global Soft Tissue Allografts Industry 7Reportlinker Adds Global Soft Tissue Allografts Industry 8Reportlinker Adds Global Soft Tissue Allografts Industry 9Reportlinker Adds Global Soft Tissue Allografts Industry 10Reportlinker Adds Global Soft Tissue Allografts Industry 11
...
... collection and automation that is controlled from ... with Microsoft Excel , Pre-configured library ... density meters, force gauges, spectrophotometers, etc ... be added and configured by the user ...
DNA sequencing - plasmids or PCR fragments, 3-7 working days service....
Nuclear/Cytosol Fractionation Kit Research Focus: other Storage Temperature: 4C Shipping Temperature: 4C...
Biology Products: