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:
*Name:
*Comment:
*Email:


(Date:6/2/2016)... June 2, 2016 Perimeter Surveillance ... Unmanned Systems, Physical Infrastructure, Support & Other Service  ... visiongain offers comprehensive analysis of the global ... will generate revenues of $17.98 billion in 2016. ... Inc, a leader in software and hardware technologies for ...
(Date:5/16/2016)... YORK , May 16, 2016   EyeLock ... solutions, today announced the opening of an IoT Center ... to strengthen and expand the development of embedded iris ... an unprecedented level of convenience and security with unmatched ... authenticate one,s identity aside from DNA. EyeLock,s platform uses ...
(Date:4/28/2016)... BANGALORE, India , April 28, 2016 /PRNewswire/ ... product subsidiary of Infosys (NYSE: INFY ), and ... global partnership that will provide end customers with ... banking and payment services.      (Logo: http://photos.prnewswire.com/prnh/20130122/589162 ... area for financial services, but it also plays a fundamental ...
Breaking Biology News(10 mins):
(Date:6/23/2016)... ... June 23, 2016 , ... ... its second eBook, “Clinical Trials Patient Recruitment and Retention Tips.” Partnering with experienced ... this eBook by providing practical tips, tools, and strategies for clinical researchers. , ...
(Date:6/23/2016)... HOUSTON , June 23, 2016 ... agreement with the Cy-Fair Sports Association to serve ... of the agreement, Houston Methodist Willowbrook will provide ... education and connectivity with association coaches, volunteers, athletes ... partner with the Cy-Fair Sports Association and to ...
(Date:6/23/2016)... , ... June 23, 2016 , ... ... announced the launch of the Supplyframe Design Lab . Located in Pasadena, ... explore the future of how hardware projects are designed, built and brought to ...
(Date:6/23/2016)... , June 23, 2016 ... Review, 2016;12(1):22-8 http://doi.org/10.17925/OHR.2016.12.01.22 Published ... the peer-reviewed journal from touchONCOLOGY, Andrew D ... cost of cancer care is placing an increasing ... of expensive biologic therapies. With the patents on ...
Breaking Biology Technology: