Assessment of Bees’ Diversity within Ngel-Nyaki Forest Reserve at Taraba State, Nigeria

L. C. Garba

Department of Biological Sciences, Taraba State University, Jalingo, Taraba State, Nigeria.

D. L. David

Department of Biological Sciences, Taraba State University, Jalingo, Taraba State, Nigeria.

E. Elisha

Nigerian Montane Forest Project, Ngel-Nyaki, Taraba State, Nigeria.

S. D. Titus

Department of Biological Sciences, Taraba State University, Jalingo, Taraba State, Nigeria.

J. H. Bulus

Department of Biological Sciences, Taraba State University, Jalingo, Taraba State, Nigeria.

J. P. Yani *

Department of Forestry and Wildlife, Taraba State University, Jalingo, Taraba State, Nigeria.

*Author to whom correspondence should be addressed.


Abstract

A field survey was conducted in Ngel-Nyaki Forest Reserve to assess the diversity of bees within the Reserve. Two methods of sampling techniques were used to sample bee species, opportunistic sampling and systematic sweep netting. Opportunistic sampling method was applied by sweep netting bees along 100 m plot where flowering plants were blooming. Collection was conducted by a single collector using an active search by walking randomly around the plot observing flowering plants and searching for bees foraging on the flowers then a sweep net was used for capturing bees. Sweep netting was conducted, line transect established within the plots for two hours, from 6:00am to 11:00am spending 20 minutes in each plot considering when the weather is conducive for bees’ activity. This was done using entomological sweep net.   Bees captured were killed in a killing bottle containing 70% ethanol. Specimens were pinned on a board and unique codes were assigned to each species before identification. Bees were identified to species level by using published systematic keys, Bees field guide and use of online materials. All data were computed using Microsoft® Excel® 2016 and percentage abundance composition of bees were calculated.575 bees spreading across 3 families and 12 species were sampled. The most abundant species was the honey bee (Apismellifera) (245; 42.53%),followed by memic bee (Megachile sp.)(89;15.45%),and the least was leafcutter bee(Osmiasp.) (2;0.35%). In terms of diversity by species, Shannon Diversity Index (H) and Shannon Equitability Index (EH) were 1.694893 and 0.736083respectively while diversity by plots using Shannon Diversity Index (H) and Shannon Equitability Index (EH) were 1.750688 and 0.977078 respectively. This study therefore, brings to the fore the diversity of bees within Ngel-Nyaki Forest Reserve and underline the need for sustainable actions to be taken to conserve beneficial rare species while managing the abundant ones.

Keywords: Assessment, diversity, forest, Ngel-Nyaki


How to Cite

Garba , L. C., David , D. L., Elisha , E., Titus , S. D., Bulus , J. H., & Yani , J. P. (2023). Assessment of Bees’ Diversity within Ngel-Nyaki Forest Reserve at Taraba State, Nigeria. Asian Journal of Research in Agriculture and Forestry, 9(3), 112–118. https://doi.org/10.9734/ajraf/2023/v9i3213

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