Navigation Links
Beavers use their noses to assess their foes
Date:4/9/2013

For territorial animals, such as beavers, "owning" a territory ensures access to food, mates and nest sites. Defending that territory can involve fights which cause injury or death. How does an animal decide whether to take on an opponent or not? A new study by Helga Tinnesand and her colleagues from the Telemark University College in Norway has found that the anal gland secretions of beavers contain information about age and social status which helps other beavers gauge their level of response to the perceived threat. The study is published online today in Springer's journal Behavioral Ecology and Sociobiology.

Beavers are monogamous, highly territorial rodents with a territory usually consisting of a dominant pair in a long-term relationship and their offspring. Offspring usually leave to find their own mates and territories at the age of two and aggressive encounters are common at this time. Beavers use anal gland secretions to mark their territories and this has been found to contain a variety of information such as animal species, subspecies, gender, individuality and kinship.

The researchers hypothesized that information about social status and age or body size may also be contained in the anal gland secretions of male beavers. This would enable established territory owners to accurately assess the level of threat posed by an intruder.

To find out whether this might be the case, anal gland secretions samples were taken from a territory owner and one of his sons, with the son being either aged 2-7 or a yearling. The researchers placed the samples in other beavers' territories within sniffing distance of each other so the beaver could detect them both at a similar time. This allowed an accurate assessment of which anal gland secretions sample the resident beavers showed the most interest in.

Tinnesand and her colleagues found that resident beavers spent more time sniffing anal gland secretions from older sons a
'/>"/>

Contact: Joan Robinson
joan.robinson@springer.com
49-622-148-78130
Springer
Source:Eurekalert

Page: 1 2

Related biology news :

1. Do beavers benefit Scottish wild salmon?
2. Busy beavers give Canada geese a lift, study shows
3. 2 servings of salmon a week is healthy for pregnant women and their babies
4. Study finds peoples niceness may reside in their genes
5. Lizard moms may prepare their babies for a stressful world
6. Deterring signals: Tobacco plants advertise their defensive readiness to attacking leafhoppers
7. Vampire jumping spiders identify victims by their antennae
8. New Tool Helps Drug Developers Optimize Their Research and Target Development for Better Results and a Stronger Competitive Edge
9. Parasitic plants steal genes from their hosts
10. Cougars are re-populating their historical range, new study confirms
11. Research: Many programs to help diabetics manage their health do work
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:8/12/2015)... As the digital payment services ... advanced biometrics technology is accelerating beyond expectations.  While the ... using their credit cards, the digital currency, mobile payment ... services led by companies in the space such as ... (NASDAQ: GOOG ), Apple Inc. (NASDAQ: AAPL ...
(Date:8/12/2015)... 12, 2015  Synaptics Inc. (NASDAQ: SYNA ... today announced that four of its fingerprint ID ... officially been named FIDO Certified™ by the Fast ... certification, Synaptics, Natural ID™ fingerprint solutions are fully ... (UAF) standard and are interoperable among other products ...
(Date:8/10/2015)... TELTOW, Germany , August 10, 2015 ... a world leader in Eye Tracking Technology for more ... OEM Eye Tracking Platform for integration into all consumer ... reference designs for seamless integration of eye tracking into ... HMDs and augmented reality smart glasses. Omnivision,s leading sensor ...
Breaking Biology News(10 mins):Digital Wallet Devices & Mobile Payment Management Services Gain a Distinct Advantage in the Digital Payment Evolution as Demand Continues to Grow 2Digital Wallet Devices & Mobile Payment Management Services Gain a Distinct Advantage in the Digital Payment Evolution as Demand Continues to Grow 3Digital Wallet Devices & Mobile Payment Management Services Gain a Distinct Advantage in the Digital Payment Evolution as Demand Continues to Grow 4Digital Wallet Devices & Mobile Payment Management Services Gain a Distinct Advantage in the Digital Payment Evolution as Demand Continues to Grow 5Digital Wallet Devices & Mobile Payment Management Services Gain a Distinct Advantage in the Digital Payment Evolution as Demand Continues to Grow 6Synaptics Announces FIDO Certification of Natural ID Fingerprint Solutions 2Synaptics Announces FIDO Certification of Natural ID Fingerprint Solutions 3SMI Completes OEM Eye Tracking Platform to Cover All Consumer Displays 2SMI Completes OEM Eye Tracking Platform to Cover All Consumer Displays 3
... of Marine Geology and Geophysics at the University of Miami ... off the fall semester with the inauguration of sophisticated equipment ... manner. Stable isotopes are used by biogeochemists to help ... using small organisms found in sediment cores. ...
... October issue of Infection Control and Hospital Epidemiology, ... uses a famous case of international intrigue and murder to ... while treating patients with radiation poisoning. The study ... Litvinenko, the Russian dissident and former KGB operative who died ...
... delivered directly to a particularly stubborn type of breast ... of recurrence and helps increase the effectiveness of some ... MD Anderson Cancer Center reported in the Sept. 13 ... and mouse studies, scientists found the gene mutation BikDD ...
Cached Biology News:'Clumps' of opportunities for cutting edge science 2Polonium poisoning case sheds light on infection control practices 2Gene therapy kills breast cancer stem cells, boosts chemotherapy 2Gene therapy kills breast cancer stem cells, boosts chemotherapy 3
(Date:8/31/2015)... 2015  US-Australian drug discovery company, Novogen Limited ... its comprehensive scientific review has identified high value ... of unmet patient need. Novogen is moving as ... prior to entering into Phase 1 clinical trials ... Chief Executive Officer, Iain Ross , said ...
(Date:8/31/2015)... ... August 31, 2015 , ... ... priority in the drug development approval process. Thus, innovator companies must understand what ... Technologies, Inc., a Chicago-based CMO, has been hosting multiple educational panels and seminars ...
(Date:8/28/2015)... 28, 2015 Research and ... the "Global & USA BioSimilar Market Analysis to ... highly awaited US Biosimilar market will be initiated in ... Zarxio. How will the global market react? Will biosimilars ... biosimilars could save the US economy up to $250 ...
(Date:8/28/2015)... , ... August 28, 2015 , ... ... and orthopedic surgeon, Wade McKenna, DO, announced today that the use of sterile, ... resulted in complete healing of an otherwise non-healing surgical knee wound. , The ...
Breaking Biology Technology:Novogen Announces The Outcome Of A Comprehensive Science Review 2Novogen Announces The Outcome Of A Comprehensive Science Review 3Novogen Announces The Outcome Of A Comprehensive Science Review 4Novogen Announces The Outcome Of A Comprehensive Science Review 5Novogen Announces The Outcome Of A Comprehensive Science Review 6Regis Shares Expert Advice on Impurities in Drug Development 2Regis Shares Expert Advice on Impurities in Drug Development 3Global & USA BioSimilar Market Analysis Report 2015-2021 2Global & USA BioSimilar Market Analysis Report 2015-2021 3Dallas-Fort Worth Stem Cell Researchers Use Amniotic Tissue To Successfully Treat Non-Healing Surgical Wound 2Dallas-Fort Worth Stem Cell Researchers Use Amniotic Tissue To Successfully Treat Non-Healing Surgical Wound 3Dallas-Fort Worth Stem Cell Researchers Use Amniotic Tissue To Successfully Treat Non-Healing Surgical Wound 4
... ... to provide online tutorial suite, Quick Reference Cards, and other training and outreach programs. ... Seattle, WA (PRWEB) April 13, ... has partnered with OpenHelixTM to provide comprehensive training and outreach programs for its ...
... Researchers at Uppsala University have developed a new method ... Hopes are strong that the method represents an important ... new diagnostic tests. The new method, which ... should enable studies of the effects of genetic variation ...
... ... Deliver Results Faster with New User Interface and Improved Support for Complex Experiments. ... (PRWEB) April 12, ... life science research, today announced Genedata Screener® 8. Developed over the past year to ...
Cached Biology Technology:RCSB PDB Teams with OpenHelix to Announce Free Tutorial and Training Materials 2RCSB PDB Teams with OpenHelix to Announce Free Tutorial and Training Materials 3Mutations directly identifiable in active genes 2Genedata Screener 8 Advancing Analysis of HCS, HTS and Time Series Data Debuts at SBS 16th Annual Conference 2Genedata Screener 8 Advancing Analysis of HCS, HTS and Time Series Data Debuts at SBS 16th Annual Conference 3Genedata Screener 8 Advancing Analysis of HCS, HTS and Time Series Data Debuts at SBS 16th Annual Conference 4
... Kits are designed for ultra-sensitive detection ... or PVDF membranes. Since all necessary ... primary antibodies), the WesternBreeze Kits save ... protocol and getting your final results. ...
Carbonate-Bicarbonate Buffer Capsules. For use in coating ELISA plates. Dissolve contents of 1 capsule in 100 ml deionized water to yield 0.05 M carbonate-bicarbonate buffer, pH 9.6....
... Adhesion Molecule The L1CAM ... involved in three distinct conditions: 1) HSAS ... MASA (mental retardation, aphasia, shuffling gait, adductus ... Immunogen: Homogenous suspension of ...
...
Biology Products: