Navigation Links
'Empty nester' parent birds use recruitment calls to extend offspring care

By studying a habituated population of pied babblers (Turdoides bicolor) in the Kalahari Desert, researchers have discovered a surprising new way in which parent birds can extend the period of their care of offspring. The findings are reported by Andrew Radford of the University of Cambridge and Amanda Ridley of the University of Cape Town and appear in the September 5th issue of Current Biology, published by Cell Press.

It is well known that birds feed their young directly, but it is usually assumed that care ends when the young leave the nest and begin to forage for themselves. In many species, however, parents and young continue to associate with one another beyond this point of nutritional independence. Because juveniles are poor foragers, they might benefit from staying close to experienced adults, who can find the best feeding sites.

The new study shows that adult babblers continue to care for their young during this period. By observing the birds closely and performing simple playback and feeding experiments, the biologists found that babbler adults use a special "purr" call to recruit inexperienced fledglings to rich, divisible food sources (adults responding to the calls often met with aggression from the caller). The researchers found that fledglings that responded to this call were much more successful than those sticking to areas chosen by themselves. This work shows that recruitment calls by adult birds may prolong offspring care beyond the onset of nutritional independence, and it sheds new light on the sophistication of parental care among birds.


Source:Cell Press

Page: 1

Related biology news :

1. The transparent organism: EMBLEM and Carl Zeiss give labs a unique look at life
2. Divergent mating systems and parental conflict as a barrier to hybridization in flowering plants
3. African amphibians make extreme parental sacrifice: The skin off their backs
4. Scientists discover why cornea is transparent and free of blood vessels, allowing vision
5. Proteins as parents
6. Newborn screening can cause unnecessary parental stress
7. Embryo tests give parents the choice
8. Technology for monitoring fetal oxygen during labor offers no apparent benefit
9. Penn researchers replace organ in adult mice using single-parent stem cells
10. Migratory songbirds have a specialized night-vision brain area
11. The lopsided brain: Attention bias is shared by humans and birds
Post Your Comments:

(Date:5/3/2016)... 2016  Neurotechnology, a provider of high-precision biometric ... Biometric Identification System (ABIS) , a complete system ... ABIS can process multiple complex biometric transactions with ... fingerprint, face or iris biometrics. It leverages the ... MegaMatcher Accelerator , which have been used ...
(Date:4/26/2016)... and LONDON , April ... part of EdgeVerve Systems, a product subsidiary of ... today announced a partnership to integrate the Onegini ...      (Logo: ) ... their customers enhanced security to access and transact ...
(Date:4/15/2016)... April 15, 2016  A new partnership announced ... accurate underwriting decisions in a fraction of the ... priced and high-value life insurance policies to consumers ... With Force Diagnostics, rapid testing (A1C, Cotinine ... readings (blood pressure, weight, pulse, BMI, and activity ...
Breaking Biology News(10 mins):
(Date:6/23/2016)... ... 2016 , ... UAS LifeSciences, one of the leading manufacturers ... Probiotics, into Target stores nationwide. The company, which has been manufacturing high quality ... list of well-respected retailers. This list includes such fine stores as Whole Foods, ...
(Date:6/23/2016)... ... June 23, 2016 , ... Charm ... Mold) microbial test has received AOAC Research Institute approval 061601. , “This is ... last year,” stated Bob Salter, Vice President of Regulatory and Industrial Affairs. “The ...
(Date:6/23/2016)... ... 2016 , ... STACS DNA Inc., the sample tracking software company, today announced ... has joined STACS DNA as a Field Application Specialist. , “I am thrilled ... COO of STACS DNA. “In further expanding our capacity as a scientific integrator, Hays ...
(Date:6/23/2016)... -- On Wednesday, June 22, 2016, the NASDAQ ... Dow Jones Industrial Average edged 0.27% lower to finish at ... has initiated coverage on the following equities: Infinity Pharmaceuticals ... NKTR ), Aralez Pharmaceuticals Inc. (NASDAQ: ARLZ ... Learn more about these stocks by accessing their free trade ...
Breaking Biology Technology: