Navigation Links
New amphibian species result from exploration, not from rule changes

Researchers have discovered amphibian species at an accelerating rate in recent decades, with over 1,000 new ones recognized between 1992 and 2003. At the same time, amphibians are, for reasons not entirely clear, declining more rapidly than either mammals or birds, underscoring the importance of an accurate evaluation.

An analysis published in the August 2005 issue of BioScience, the monthly journal of the American Institute of Biological Sciences, indicates that, contrary to some published expert opinions, new amphibian discoveries are a consequence of increasing exploratory effort, not of changing criteria for recognizing a species, or "taxonomic inflation." The authors of the new analysis, Jörn Köhler of the Hessisches Landesmuseum Darmstadt, Germany, and colleagues, conclude that "Taxonomic exploration is still desperately needed to avoid misinterpretations in global conservation policy."

Köhler and his coauthors reached their conclusions after examining genetic data on a Madagascan frog family, the Mantellidae, that grew from 143 to 203 species between 1992 and 2003. The investigators compared the sequence of a particular mitochondrial gene in mantellid species recognized at various times from the 19th century to the present. The gene sequences were no more similar in recently recognized species than in long-recognized species, a result that argues again taxonomic inflation as the explanation for the growth. Moreover, the Mantellidae include few subspecies that could complicate an analysis. Köhler and colleagues credit the boost in the number of amphibian species descriptions to new bioacoustic and genetic tools, and urge the continuation and expansion of efforts to identify further examples. They acknowledge, however, that taxonomic inflation might explain the growing number of species in some other animal groups, such as primates and birds.

The complete list of research articles in the August issue of BioScience follows:

*
'"/>

Source:American Institute of Biological Sciences


Page: 1 2

Related biology news :

1. Researchers find new giant amphibian fossils in Africa
2. Roundup®highly lethal to amphibians, finds University of Pittsburgh researcher
3. Climate change drives widespread amphibian extinctions
4. African amphibians make extreme parental sacrifice: The skin off their backs
5. Major initiative proposed to address amphibian crisis
6. Race to halt global amphibian crisis boosted by rediscovery of endangered Colombian frogs
7. Ancient amphibians evolved a bite before migrating to dry land
8. New species from old data
9. Same mutation aided evolution in many fish species, Stanford study finds
10. Fibril Shape Is The Basis Of Prion Strains And Cross-species Prion Infection
11. Reservoirs may accelerate the spread of invasive aquatic species, researchers say
Post Your Comments:
*Name:
*Comment:
*Email:
TAG: New amphibian species result from exploration not from rule changes

(Date:2/12/2015)... 12, 2015 NXT-ID, Inc. (NASDAQ: ... biometric authentication company focused on the growing mobile commerce ... 62/113114 for DISTRIBUTED METHOD AND SYSTEM TO ... patent further establishes NXT-ID,s position in the emerging "Internet ... the ability for multiple devices to collaborate with one ...
(Date:2/9/2015)... 2015  Lintec of America recently announced an exclusive ... (CNT) macrostructures, including sheets, yarns and ribbons, developed at ... Leveraging the vast industrial resources of the global Lintec ... Lintec of America is forming the Nano-Science and Technology ... focusing on scaling up the manufacturing and commercialization of ...
(Date:2/5/2015)... Epic Sciences , a precision diagnostics company dedicated to improving ... , Ph.D., president and CEO, is scheduled to present at ... Valley, which is taking place at the Computer History Museum ... 26-28, 2015. Dr. Prahalad will give a ... Epic Sciences was a finalist in the PMWC,s Most Promising ...
Breaking Biology News(10 mins):NXT-ID Patents Collaborative Services to Enable the "Internet of Things" 2NXT-ID Patents Collaborative Services to Enable the "Internet of Things" 3Lintec announces exclusive license to commercialize innovative carbon nanotube technology from the University of Texas at Dallas 2Lintec announces exclusive license to commercialize innovative carbon nanotube technology from the University of Texas at Dallas 3Lintec announces exclusive license to commercialize innovative carbon nanotube technology from the University of Texas at Dallas 4Epic Sciences to Present at Personalized Medicine World Conference 2015 on the Use of Circulating Tumor Cells as Cancer Biomarkers 2
... their way, biological research may soon be transformed by a ... into individual cells without harm to the host. Welcome to ... medicine in which light-based devices lasers and light-emitting diodes ... and influence of living cells. The team described ...
... Silicon, the material of high-tech devices from computer chips to ... applications. The coating "passivates" the material, tying up loose atomic ... But this passivation process consumes a lot of heat and ... that can be added to the devices. Now a ...
... Institute researchers have identified a previously unrecognized layer of ... undesirable white fat cells. When this regulation is disrupted, ... or mature from their precursors. "We,re trying to ... make fat cells," says Whitehead Founding Member Harvey Lodish, ...
Cached Biology News:Light-emitting bioprobe fits in a single cell 2Light-emitting bioprobe fits in a single cell 3Light-emitting bioprobe fits in a single cell 4A cooler way to protect silicon surfaces 2A cooler way to protect silicon surfaces 3Long noncoding RNAs control development of fat cells 2
(Date:2/27/2015)... The fully automated supercritical fluidic ... sequentially analyze up to 48 samples utilizing automatic ... of targets by mass spectrometry. , The ... measurement requirements of a wide range of applications, ... and search for disease biomarkers, additives in forming ...
(Date:2/27/2015)... 2015 Cytokinetics, Incorporated (Nasdaq: CYTK) announced ... with patients and health care advocates in the United ... Day®. Rare Disease Day is dedicated to elevating ... the special challenges faced by patients with rare diseases ... proud to stand alongside patients and caregivers representing the ...
(Date:2/26/2015)... N.J. , Feb. 26, 2015 On ... and its affiliated companies, Wilentz, Goldman & Spitzer, ... trade secrets lawsuit against Genewiz Inc. in excess of ... and utilized GenScript,s trade secrets, and that it improperly ... entered an order denying motions for judgment notwithstanding the ...
(Date:2/26/2015)... 26, 2015   Regulus Therapeutics Inc . (NASDAQ: ... discovery and development of innovative medicines targeting microRNAs, today ... and Chief Executive Officer of Regulus, will present a ... Annual Healthcare Conference on Wednesday, March 4, 2015 ... at the Boston Marriott Copley Place.  ...
Breaking Biology Technology:Shimadzu Corporation Launches Nexera UC - The World’s Foremost Unified Chromatography System 2Shimadzu Corporation Launches Nexera UC - The World’s Foremost Unified Chromatography System 3Cytokinetics Joins Global Movement to Raise Awareness for Rare Diseases 2Cytokinetics Joins Global Movement to Raise Awareness for Rare Diseases 3Cytokinetics Joins Global Movement to Raise Awareness for Rare Diseases 4Cytokinetics Joins Global Movement to Raise Awareness for Rare Diseases 5Cytokinetics Joins Global Movement to Raise Awareness for Rare Diseases 6Wilentz Client GenScript Awarded $10 Million in Trade Secrets Case Against Genewiz 2Wilentz Client GenScript Awarded $10 Million in Trade Secrets Case Against Genewiz 3Regulus to Present at Cowen and Company 35th Annual Healthcare Conference 2Regulus to Present at Cowen and Company 35th Annual Healthcare Conference 3
... DNDN ) today announced that management will participate ... Life Sciences Conference Grand Hyatt New York ... The presentation will be audio webcast live and available ... Corporation is a biotechnology company whose mission is to,target ...
... Sept. 18 Premier Research Group plc (AIM:,PRG) ... its Vice President,Global Human Resources. Mr. Keenen will ... activities related to maximizing the,effectiveness of Premier Research,s ... strategy. Dr. Troy McCall, COO, commented: "We ...
... places Bioscrypt,s fingerprint reader on biometrics access control ... approved products list for airports, ... a,leading provider of enterprise access control technology, today announced,that its ... (TSA) and placed on the TSA,s "Biometrics for,Access Control" Qualified ...
Cached Biology Technology:Premier Research Appoints Global Head of Human Resources 2Bioscrypt's V-Station MIFARE Placed on Transportation Security Administration's Qualified Products List 2Bioscrypt's V-Station MIFARE Placed on Transportation Security Administration's Qualified Products List 3
... ChemiLucent™ Plus is a chemiluminescent ... used independently to boost the signal ... blot detection kits. ChemiLucent™ Plus is ... technology. Unlike conjugated complex- or chemiluminescent ...
... for proteomic scale kinase profiling, quantitative ... drug discovery research built on the ... synthesis platform. These microarrays are available ... Kinase Substrate - Peptide Microarray Service. ...
... Imaging System, Basic Package Superior Protein ... Range: The ProXPRESS 2D Proteomic Imaging System ... for both proteomic and general life science ... enabling the use of all dyes in ...
... time, you can identify and characterize high-value, ... interferences. The Agilent Multiple Affinity Removal System ... proteins from human serum, plasma, CSF samples ... With this revolutionary system, you can: ...
Biology Products: