Navigation Links
New book explores relentless evolution in a constantly changing world
Date:4/18/2013

When we look around in nature, most species seem well adapted to their environment. Scientists have found, however, that species evolve relentlessly and that evolutionary changes occur at a surprisingly rapid pace.

How to reconcile these observations is the focus of a new book by John N. Thompson, distinguished professor of ecology and evolutionary biology at the University of California, Santa Cruz. In Relentless Evolution (University of Chicago Press), Thompson argues that species must be able to evolve constantly or they will not persist.

"Evolution is more relentless and often more rapid than we thought as recently as a decade ago," Thompson said.

Populations within species evolve in different ways, adapting to local physical conditions and to a continually changing web of interacting species. Generation after generation, natural selection constantly adjusts the traits of populations. For the most part, however, this relentless evolution is not what most people envision when they think of evolution--it does not lead to the emergence of new species or "directional" change in the traits of a species.

"Much of adaptive evolution does not lead anywhere, yet these small changes are crucially important," Thompson writes. "These continual microevolutionary changes keep populations in the evolutionary game as they interact with other species that are themselves constantly evolving. These seemingly aimless meanderings are the essential dynamics of evolution, with directional change and speciation as occasional outcomes."

Pathogens and pests that affect people and crops offer some of the most familiar and compelling examples of relentless evolution. Bacteria evolve resistance to antibiotics, insects evolve resistance to pesticides, and plant pathogens evolve to overcome disease-resistant varieties of crops.

In natural systems, biologists have documented hundreds of cases of ongoing evolution in a wide range of
'/>"/>

Contact: Tim Stephens
stephens@ucsc.edu
831-459-2495
University of California - Santa Cruz
Source:Eurekalert

Page: 1 2

Related biology news :

1. Study explores long-term water quality trends in near-pristine streams
2. The Scars of Human Evolution briefing explores physical fallout from 2-footed walking
3. UA explores promoting teen health via text message
4. USDA explores using novel genetic labs for faster detection of E. coli
5. New clinical trial explores use of smartphone application for postpartum weight loss
6. Forest killer plant study explores rapid environmental change factors
7. Boston Healthcare Associates Roundtable Explores Challenges and Opportunities Surrounding the Value of Big Data within the Life Sciences
8. Whats in a surname? New study explores what the evolution of names reveals about China
9. New clinical trial explores novel noninvasive colon cancer screening test
10. Genome sequencing of the living coelacanth sheds light on the evolution of land vertebrate
11. Evolution Marketing Research Grows its Practice with Addition of Three Key Industry Professionals
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:9/18/2014)... camouflage: you don,t just blend in, the background shows ... as you might think. Kathryn Feller, from the University ... life stages of many marine species are transparent. However, ... creatures cannot make transparent. Feller explains that the animals ... unit with an opaque pigment to prevent light leaking ...
(Date:9/18/2014)... protective tentacles of host anemones, but new research shows ... across the open ocean. Although the process of long-distance ... the first time that the high level exchange of ... Steve Simpson, Senior Lecturer in Marine Biology and Global ... the Australian Research Council Centre of Excellence for Coral ...
(Date:9/17/2014)... scientists were instrumental in the creation of the Santa ... classify the fire threat potential of the powerful, hot, ... into an inferno. The index was introduced Sept. 17 ... and San Diego Gas and Electric. , The index ... that will be used to help fire agencies and ...
Breaking Biology News(10 mins):Transparent larvae hide opaque eyes behind reflections 2Expedition finds Nemo can travel great distances to connect populations 2Expedition finds Nemo can travel great distances to connect populations 3UCLA scientists play key role in developing new Santa Ana Wildfire Threat Index 2
... of the brain, which scavenge pathogens and damaged neurons, are ... research by Duke neuroscientists. Earlier studies by Staci Bilbo, ... laboratory rats experiencing an infection at an early age have ... their learning and memory. In a study published ...
... Lake City Physicians preparing to deliver a baby look ... whether or not to perform a C- section. But a ... shows that those heart rate patterns may not be a ... lead to unnecessary interventions and higher costs. "We,re trying ...
... a class of theoretical concepts for manipulating the climate ... caused by greenhouse gasses. But its potential effectiveness and ... could help narrow these uncertainties. A team composed of ... and Harvard,s David Keith used modeling to determine the ...
Cached Biology News:Source found for immune system effects on learning, memory 2Source found for immune system effects on learning, memory 3New study finds fetal heart rate not a good indicator of a baby's health 2New study finds fetal heart rate not a good indicator of a baby's health 3Testing geoengineering 2
(Date:9/19/2014)... September 19, 2014 ... http://www.researchandmarkets.com/research/b2jxhs/micro_market ) has announced the addition of the  ...  report to their offering.       (Logo: ... one of the fastest-growing segments in the chromatography ... in 2013, and expected to reach $2.0 billion ...
(Date:9/18/2014)... TX (PRWEB) September 18, 2014 ... integrated urological and interventional radiology products and services, ... known as cryotherapy and cryoablation) versus external beam ... Section of the American Urological Association (MAAUA) Annual ... , "Comparing Relative Effectiveness of Cryosurgery and External ...
(Date:9/18/2014)... Sept. 18, 2014  Health Enhancement Products, Inc. (OTCQB: HEPI), ... algae bioactive compounds and metabolic processes, is pleased to announce ... of directors. Ms. Nola E. Masterson , a ... the board effective September 17, 2014. "We,re ... join our board," states Andrew Dahl , President and ...
(Date:9/18/2014)... Research and Markets has announced the addition ... Report, 2014-2017" report to their offering. ... differentiate into specialized cells and can divide (through mitosis) ... be applied to treatment of cardiovascular diseases, leukemia (a ... or lesion of liver, kidney and other parenchymal organs, ...
Breaking Biology Technology:Micro Market Monitor : Global Pre-packed Chromatography Columns 2HealthTronics Announces Data Comparing Cryotherapy Versus Radiation for Treating Prostate Cancer Poster Presented at the American Urological Association Regional Meeting 2Health Enhancement Announces New Board Member In Advance Of Annual Shareholder Meeting 2Global and Chinese Stem Cell Industry Report, 2014-2017 2Global and Chinese Stem Cell Industry Report, 2014-2017 3
... LI-COR Biosciences has released a,new Technical ... the Odyssey Infrared,Imaging System. The E-PAGE 48- ... a high-throughput SDS-PAGE,method for processing protein samples. ... System, up to 96 different proteins samples can ...
... 19 PharmAthene, Inc.,(NYSE Alternext US: PIP), a ... threats, announced today that,it has signed an agreement ... in Israel. , ... combat the risk of,terrorist attacks with biological or ...
... Jazz Pharmaceuticals,Inc. (Nasdaq: JAZZ ) announced that it ... Capital Markets 5th Annual Healthcare,Conference due to the proximity of ... pivotal clinical trial of JZP-6 (sodium oxybate) for,the treatment of ... anticipates that it will release the preliminary top-line data,within the ...
Cached Biology Technology:Technical Note: E-PAGE(TM) 48- and 96-Well Gels on the Odyssey(R) Infrared Imaging System 2PharmAthene Signs Agreement with Medison Pharma Ltd. to Commercialize and Distribute Biodefense Medical Countermeasures in Israel 2PharmAthene Signs Agreement with Medison Pharma Ltd. to Commercialize and Distribute Biodefense Medical Countermeasures in Israel 3PharmAthene Signs Agreement with Medison Pharma Ltd. to Commercialize and Distribute Biodefense Medical Countermeasures in Israel 4
...
... versatile enclosures are designed ... or other process gas ... environment. HEPA filtration, heating/cooling, ... modules also available, along ...
... The new Hummingbird has the ability to quickly ... plate makes it a perfect candidate for inclusion ... simple OCX interface supplied with all the Cartesian ... store. Hummingbirds ability to copy plates in ...
Sigmas E-TOXATE (Limulus Amebocyte Lysate) test kits are intended for the detection and semiquantitation of endotoxins for research purposes. sensitivity 0.05-0.1 EU/mL...
Biology Products: