1887

n African Zoology - Digestive efficiency of indigenous and invasive avian species fed fruit of invasive alien plants in South Africa

Volume 50, Issue 4
  • ISSN : 1562-7020
  • E-ISSN: 2224-073X
This article is unavailable for purchase outside of Africa

 

Abstract

Many highly invasive plant species produce fleshy fruit that are consumed and dispersed by frugivorous birds. However, little is known about assimilation efficiency of invasive fruit by indigenous and invasive avian species. We investigated whether indigenous Knysna () and Purple-crested () Turacos and invasive alien Rose-ringed Parakeets () met their energy demands when fed fruits of four fleshy fruitedinvasive alien plant species: Birds were fed single-fruit diets for two consecutive days and energetic parameters were calculated for all fruit diets. Our results showed that generally both invasive and indigenous avian species managed to gain their daily energy requirements from fruits of the four respective invasive plants, suggesting that they can meet their energetic demands by feeding on them only. The exception was , which did not feed on . These findings may explain why fruits of invasive alien plants are attractive to most avian frugivores and highlight the role of avian frugivores in their dispersal.

Loading full text...

Full text loading...

Loading

Article metrics loading...

/content/afzoo/50/4/EJC183120
2015-01-01
2020-09-30

This is a required field
Please enter a valid email address
Approval was a Success
Invalid data
An Error Occurred
Approval was partially successful, following selected items could not be processed due to error