Navigation Links
City birds adapt to their new predators
Date:11/7/2012

Faced with the same threat, city and country birds do not react in the same way despite being from the same species. According to a new study, urban birds have changed their anti-predator behaviour in new environments.

When a bird is faced with a predator, its only objective is to escape. However, city birds do not react in the same way as their countryside counterparts, despite being from the same species. Urbanisation plays an influential role in their survival strategies.

To study this phenomenon, Juan Diego Ibez-lamo, researcher at the University of Granada (UGR) and Anders Pape Mller from Paris-Sud University (France) analysed the escape techniques of 1,132 birds belonging to 15 species in different rural and urban areas.

Published in the Animal Behaviour journal, the results show that city birds have changed their behaviour to adapt to new threats like cats (their main predator in the city) instead of their more traditional enemies in the countryside, such as the sparrow hawk.

"When they are captured, city birds are less aggressive, they produce alarm calls more frequently, they remain more paralysed when attacked by their predator and they loose more feathers than their countryside counterparts," as explained to SINC by Juan Diego Ibez-lamo.

The surprising thing is that urbanisation is directly linked with these differences, which become more acute the earlier the former has taken place. This suggests that escape strategies evolve alongside the expansion of cities; a concept that is on the increase worldwide.

Adapt or die in the territory of man

Like the habitat of many animals and plants, the habitat of birds changes and fragments. Discovering how they adapt to transformations in their habitat is "crucial" for understanding how to lessen their effects. "Predation change caused by city growth is serious," outlines Ibez-lamo.

As the scientist indicates, tactics against their hunters are "crucial" so that birds can adapt to their new environment: "Birds should modify their behaviour to be able to survive in cities because if not, they will become extinct at the mercy of urban growth."


'/>"/>
Contact: SINC
info@agenciasinc.es
34-914-251-820
FECYT - Spanish Foundation for Science and Technology
Source:Eurekalert  

Related biology news :

1. New study will help protect vulnerable birds from impacts of climate change
2. Not just for the birds: Man-made noise has ripple effects on plants, too
3. UCSB researchers find that less is more, for female cowbirds
4. Hitch-hiking with birds for life
5. Songbirds learning hub in brain offers insight into motor control
6. Scientists find that rain may not always be a welcome thing to waterbirds
7. Restoring streamside forests helps songbirds survive the winter in Californias Central Valley
8. Better looking birds have more help at home with their chicks
9. Seabirds study shows plastic pollution reaching surprising levels off coast of Pacific Northwest
10. Helping family is key for social birds
11. Fossil egg discovered in Lleida (Spain) links dinosaurs to modern birds
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
City birds adapt to their new predators
(Date:6/22/2016)... ANGELES , June 22, 2016 /PRNewswire/ ... identity management and verification solutions, has partnered ... edge software solutions for Visitor Management, Self-Service ... provides products that add functional enhancements ... partnership provides corporations and venues with an ...
(Date:6/20/2016)... , June 20, 2016 Securus Technologies, ... technology solutions for public safety, investigation, corrections and ... prisons involved, it has secured the final acceptance ... facilities for Managed Access Systems (MAS) installed. Furthermore, ... facilities to be installed by October, 2016. MAS ...
(Date:6/9/2016)... 2016  Perkotek an innovation leader in attendance control systems is proud to announce ... for employers to make sure the right employees are actually signing in, and to ... ... ... ...
Breaking Biology News(10 mins):
(Date:6/23/2016)... ... June 23, 2016 , ... STACS DNA Inc., the sample tracking software ... State Crime Laboratory, has joined STACS DNA as a Field Application Specialist. , ... Tremblay, President and COO of STACS DNA. “In further expanding our capacity as a ...
(Date:6/23/2016)... 2016  Blueprint Bio, a company dedicated to identifying, ... community, has closed its Series A funding round, according ... "We have received a commitment from Forentis Fund ... to meet our current goals," stated Matthew Nunez ... to complete validation on the current projects in our ...
(Date:6/23/2016)... ... June 23, 2016 , ... ClinCapture, the ... Convention Center and will showcase its product’s latest features from June 26 to ... a scientific poster on Disrupting Clinical Trials in The Cloud during the conference. ...
(Date:6/23/2016)... 22, 2016  Amgen (NASDAQ: AMGN ) ... QB3@953 life sciences incubator to accelerate the development ... laboratory space at QB3@953 was created to help high-potential ... for many early stage organizations - access to laboratory ... Amgen launched two "Amgen Golden Ticket" awards, providing each ...
Breaking Biology Technology: