HOME >> BIOLOGY >> NEWS
Salamanders change spots: Was it environmental stress?

ITHACA, N.Y. -- Salamanders with unusual, asymmetrical spots have been found in a pond in the middle of an Ithaca golf course. Cornell University biologists, who have compared the amphibians with symmetrically spotted specimens gathered from the same pond six decades earlier, believe they are seeing indications that changes in a salamander's spots can signal environmental trouble.

"Salamanders and frogs are considered an early-warning system for environmental stress," says Kelly Zamudio, Cornell assistant professor of ecology and evolutionary biology. "With the dramatic change in these spots, this is an early-warning system for an early warning system."

Zamudio and Amber N. Wright, a Columbia University biology graduate student, who conducted the research while she was a Cornell undergraduate, have published their findings, "Color Pattern Asymmetry as a Correlate of Habitat Disturbance in Spotted Salamanders," in the March 2002 issue of The Journal of Herpetology. The biologists embarked on this research to determine if evidence of environmental health or stress could be seen in the degree of the salamander populations' spot symmetry. Comparing today's salamanders with those gathered in the same breeding area 60 years ago, they found that over the decades the salamander spots have changed from a regular pattern to a more-asymmetrical one.

Zamudio and Wright collected salamander samples from two breeding areas that are about six miles apart and within the same watershed area in Ithaca: Bull Pasture Pond, on Cornell's Robert Trent Jones golf course, and Ringwood Pond, part of a nature reserve protected and managed by Cornell. Zamudio and Wright also examined salamanders in the Cornell Museum of Vertebrates, where the specimens are kept in ethanol-filled jars, gathered from the 1910s to the 1960s by Cornell herpetologist Albert Hazen Wright and hi
'"/>

Contact: Blaine P. Friedlander Jr.
bpf2@cornell.edu
607-255-3290
Cornell University News Service
24-Apr-2002


Page: 1 2 3

Related biology news :

1. Salamanders may one day monitor degradation in small streams
2. Salamanders May Reveal Best Way To Manage Forests
3. Climate change plus human pressure caused large mammal extinctions in late Pleistocene
4. Researchers create nanotubes that change colors, form nanocarpet and kill bacteria
5. A fishy change in diet
6. Adaptive changes in the genome may provide insight into the genetics of complex disease
7. Modest climate change could lead to substantially more and larger fires
8. Evidence for the impact of climate change on deep-sea biodiversity
9. Gene changes linked to increased eye pressure may have implications for glaucoma therapy
10. Avalanche of change
11. Fundamental change to Immunology 101

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:1/23/2020)... (PRWEB) , ... January 23, ... ... of a new public-private Manufacturing USA initiative, the Advanced Regenerative Manufacturing Institute ... Institute. ARMI brings together a consortium of over 100 partner organizations from ...
(Date:1/22/2020)... ... January 21, 2020 , ... ... chain operations, developing transport validation strategies, supporting global regulatory applications, and executing ... and the Houston Business Journal as a fastest growing company, and ISO ...
(Date:1/7/2020)... ... January 07, 2020 , ... ... features not just part numbers like what can be found in most catalogs, ... supports, and that is all linked to the impact it has on the ...
Breaking Biology News(10 mins):
(Date:1/27/2020)... , ... January 27, 2020 , ... ... in neuroscience and cloud and mobile computing, today announced the availability of neuroscience ... an organization to use the latest neuroscience of leadership and change research to ...
(Date:1/23/2020)... ... 2020 , ... Ideal Implant CEO and President Robert S ... North American investor forums specializing in medical advancements. New technology was presented to ... on November 21, 2019 in New York City, and the Aesthetic Technology Summit ...
(Date:1/10/2020)... ... January 09, 2020 , ... ... establishes benchmarks for the vendor qualification process, a critical element of clinical ... volume and complexity of the vendor qualification process creates delays in initiation in ...
(Date:1/7/2020)... ... January 07, 2020 , ... Absolute Antibody Ltd. , ... of its VivopureX™ recombinant mouse antibodies for in vivo research in mouse models. ... hamsters, which Absolute Antibody has engineered into mouse-anti-mouse recombinant versions to improve research ...
Breaking Biology Technology:
Cached News: