Etiqueta: animal behavior
A large brain increases the capacity to adjust behavior to new circumstances through learning, improving resource-gathering in a changing environment. Greater understanding of this capacity can improve predictions of what species of birds and other animals will be most vulnerable to global change.
Around the world, invasive animal species are pushing out the natives, sometimes forever altering ecosystems. House sparrows are a prime example, having spread from Europe to most inhabited parts of the world. Daniel Sol has collaborated in an dissemination article for the Science journal that have gleaned key traits underlying its incredible success.
A new international study relates brain size to the amount of stress hormone in birds. A larger brain increases cognitive ability, which allows them to face new challenges and, ultimately, a more relaxed lifestyle compared to those with a small brain.
According to experts at the CREAF, this capability assures success in the city and the possibility to become "urbanite" animals. A comprehensive review of published studies concludes that in urban environments, species often change their eating habits, lose their fear of humans and modify their way of communicating.