Journal Of Tropical Biosciences
Volume No: 10|
Page No: 54
| FullText PDF
Title: SURVEY OF THE AVIAN FAUNA OF KAGORO - TSONJE RIPARIAN FOREST, KADUNA STATE - NIGERIA
1-ABAGAI, R. AND 2-TANKO, D.
1DEPARTMENT OF BIOLOGY, KADUNA STATE COLLEGE OF EDUCATION,&NBSP;GIDAN-WAYA
2DEPARTMENT OF BIOLOGICAL SCIENCES, FEDERAL UNIVERSITY&NBSP;LOKOJA, KOGI STATE
The current ecological status of the Kogoro -Tsonje forest was assessed and information was gathered on the bird fauna. The vegetation analysis was done using modified Whittaker’s technique (Direct Count Method). Avian fauna was estimated using the point count technique. The forest had a woody plant density of 336/ha during the wet season and 121/ha during the dry season. There were 52 species of plants belonging to 18 families. Family Fabaceae with 13 species had the highest species diversity followed by family Moraceae with 8 species. Members of the Fabaceae were dominant probably due to economic value of most of the Fabaceae seeds and probably there mode of dispersal. Moraceae family on the other hand retains water in their woody tissue for a very long time before drying into fuel wood. This probably made fuel wood gatherers and lumbering to avoid members of the family. The avian fauna recorded 69 species in 35 families. There were more species in the wet season than the dry season. Human-related/land use activities at the site were lumbering, logging and grazing. As a result of the disturbance of the forest, the important avian species such as Vannellus superciliosus, Chrysococyx flavigularis, Cossypha natalensis and Camphephaga quiscalina which made the forest to be known for its ornithological importance, were not sighted within the study period. Therefore, further research on the avifauna of the forest to ascertain its status as an Important Bird Area (IBA) is recommended.
The vegetation of the forest has greatly reduced resulting in loss of some animal species. This have been shown in the disappearance of birds like Vanelluss upercilliosus, Chrysoccocyx flavigularis, Campephaga quiscalina that in recent past made the Kagoro -Tsonje forest to be of ornithological importance. At the time of this research work, these birds were not sighted either in the dry or wet seasons.
This work further reveals that Kagoro –Tsonje forest which was once an extra zonal low land rainforest in this location practically disappeared. The delineating drivers have been: Fuel wood extraction, slash and burn agriculture, uncontrolled lumbering activities, over hunting and fishing among other possible causes. The status of the forest as an Important Bird Area (IBA) in doubtful as the bird that warranted this area were not encountered at the time of this study.