Navigation Links
The collared treerunner is more than a single species
Date:11/25/2013

The lowland tropics were once though filled with widespread species, while moderate and higher elevations were thought to contain species with more restricted distributions. That idea is turning out to be partially incorrect. Widespread species now appear to be the exception, instead of the rule. A new study describes four species once considered to be the collared treerunner, a lizard known to the scientific community as Plica plica. The study was published in the open access journal ZooKeys.

The collared treerunner was originally described in 1758 and has been the subject of many biological, ecological, and behavioral studies in recent years. A new ZooKeys paper by John C. Murphy, Field Museum (Chicago) and Michael J. Jowers, Estacin Biolgica de Doana (Sevilla, Spain) describe four new species formerly thought to be one.

"The collard treerunner was considered a single species ranging from Trinidad and Tobago and northern Venezuela southward into the Amazon Basin, south of the Amazon River." Murphy said. " The Treerunners ancestor diverged about 25-30 million years ago, and throughout this time the South American continent has undergone dramatic remodeling, including the rise of the Andes, rising and falling sea levels, and changing climates that isolated populations for long periods of time, allowing them to become new species. Treerunners live on vertical surfaces, such as tree trunks, rock walls, and even buildings and they eat a variety of insects.

The new paper focuses on populations of this lizard in northern South America, but in an overall survey the authors examined specimens from across the Amazon basin and suspect there may be at least another five to seven undescribed species in what is currently considered the collared treerunner. The treerunners from Trinidad and northern Venezuela were 4.5% genetically different from those in southern Venezuela, and more than 5% different from those in Brazil. For comparison purposes humans and chimpanzees are less than 2% genetically different.

While some species may form by genetic divergence without showing any morphological differences from their ancestor, other often show subtle or obvious morphological differences that may be quite easy to detect. The latter is the case with the collard treerunners.

Some had as few as 92 scales around the body while others had 202 scales around the body. Some adult males have yellow heads while other have red heads, some have distinctive patterns of spots while others have transverse bands.

Unraveling cryptic species is important for a more complete understanding of biodiversity, evolution, and for long term conservation efforts.

The take home message here is that there are many more species of squamate reptiles (lizards and snakes) in the world than previously thought, and it is likely many species have and will disappeared before science is even aware of them. Cutting forests and draining swamps undoubtedly causes extinctions of the species depending upon those habitats. While none of the treerunners described in this paper are likely to be threatened with extinction this discovery and many other similar recent discoveries suggest our knowledge of biodiversity is lacking.


'/>"/>

Contact: John C. Murphy
fordonia1@comcast.net
Pensoft Publishers
Source:Eurekalert  

Related biology news :

1. First snow leopards collared in Afghanistan
2. Deletion of any single gene provokes mutations elsewhere in the genome
3. Single-cell genome sequencing gets better
4. Single mutation gives virus new target
5. Improved smartphone microscope brings single-virus detection to remote locations
6. Genomes of cholera bacteria from Haiti confirm epidemic originated from single source
7. Single-cell transfection tool enables added control for biological studies
8. Philips CX50 xMATRIX now offers world-class interventional and diagnostic features on single portable system
9. How much a single cell breathes
10. Cat and mouse: A single gene matters
11. Dartmouth researchers find there is no single sexy chin
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
The collared treerunner is more than a single species
(Date:5/9/2016)... UAE, May 9, 2016 Elevay ... comes to expanding freedom for high net worth professionals ... in today,s globally connected world, there is still no ... could ever duplicate sealing your deal with a firm ... passports by taking advantage of citizenship via investment programs ...
(Date:4/28/2016)... BANGALORE, India , April 28, 2016 ... subsidiary of Infosys (NYSE: INFY ), and Samsung ... global partnership that will provide end customers with a ... and payment services.      (Logo: http://photos.prnewswire.com/prnh/20130122/589162 ... for financial services, but it also plays a fundamental part ...
(Date:4/26/2016)... BANGALORE, India and LONDON ... Infosys Finacle, part of EdgeVerve Systems, a ... ), and Onegini today announced a partnership to ... banking solutions.      (Logo: http://photos.prnewswire.com/prnh/20151104/283829LOGO ... banks to provide their customers enhanced security to ...
Breaking Biology News(10 mins):
(Date:6/24/2016)... ... June 24, 2016 , ... Researchers at the Universita Politecnica delle Marche ... with peritoneal or pleural mesothelioma. Their findings are the subject of a new article ... Diagnostic biomarkers are signposts in the blood, lung fluid or tissue of mesothelioma patients ...
(Date:6/23/2016)... ... June 23, 2016 , ... UAS ... the launch of their brand, UP4™ Probiotics, into Target stores nationwide. The company, ... proud to add Target to its list of well-respected retailers. This list includes ...
(Date:6/23/2016)... - FACIT has announced the creation of a ... Propellon Therapeutics Inc. ("Propellon" or "the Company"), to ... of first-in-class WDR5 inhibitors for the treatment of ... an exciting class of therapies, possessing the potential ... patients. Substantial advances have been achieved with the ...
(Date:6/23/2016)... Houston Methodist Willowbrook Hospital has signed ... to serve as their official health care provider. ... will provide sponsorship support, athletic training services, and ... volunteers, athletes and families. "We are ... and to bring Houston Methodist quality services and ...
Breaking Biology Technology: