Do malaria parasites manipulate the escape behaviour of their avian hosts? An experimental study.
Parasitol Res
; 114(12): 4493-501, 2015 Dec.
Article
em En
| MEDLINE
| ID: mdl-26337268
ABSTRACT
Escape behaviour is the behaviour that birds and other animals display when already caught by a predator. An individual exhibiting higher intensity of such anti-predator behaviour could have greater probabilities of escape from predators. Parasites are known to affect different aspects of host behaviour to increase their own fitness. Vector-transmitted parasites such as malaria parasites should gain by manipulating their hosts to enhance the probability of transmission. Several studies have shown that malaria parasites can manipulate their vectors leading to increased transmission success. However, little is known about whether malaria parasites can manipulate escape behaviour of their avian hosts thereby increasing the spread of the parasite. Here we used an experimental approach to explore if Plasmodium relictum can manipulate the escape behaviour of one of its most common avian hosts, the house sparrow Passer domesticus. We experimentally tested whether malaria parasites manipulate the escape behaviour of their avian host. We showed a decrease in the intensity of biting and tonic immobility after removal of infection with anti-malaria medication compared to pre-experimental behaviour. These outcomes suggest that infected sparrows performed more intense escape behaviour, which would increase the likelihood of individuals escaping from predators, but also benefit the parasite by increasing its transmission opportunities.
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Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Plasmodium
/
Doenças das Aves
/
Aves
/
Malária Aviária
Limite:
Animals
Idioma:
En
Revista:
Parasitol Res
Assunto da revista:
PARASITOLOGIA
Ano de publicação:
2015
Tipo de documento:
Article
País de afiliação:
Espanha