Araştırma Makalesi
BibTex RIS Kaynak Göster

Tree Species Biodiversity of a Sahelien Ecosystem in North-East Nigeria

Yıl 2017, Cilt: 19 Sayı: 2, 166 - 173, 01.12.2017

Öz

Trees species are crucial part of the ecosystem,
they provides tangible and intangible benefits. The need for periodic
assessment of these resources for management and conservation purposes is
imperative. This study was therefore carried out to assess the tree species composition,
diversity and richness of a Sahel ecosystem with the view of providing
information for management and conservation purposes. The study area was
stratified into three (3) from which transect of 1000 m was laid in each of the
strata. 12 Sample plots of 40 m × 40 m in size were established in alternate
position along each transect at 40 m interval. The height and diameter at
breast height (dbh) of all living trees with dbh ≥10.0 cm were measured and
counted. The results from the study show that the study area has a total of 174
trees, 8 species and 14 Families. Margalef's index of species richness of 2.52,
Pielou's species evenness index (EH) of 0.38, Shannon-Weiner index (H') of 1.97
and Simpson index of dominance (D) of 0.46 were recorded. The recorded
biodiversity indices indicate a poor state of tree species, richness,
composition and distribution within the environment.

Kaynakça

  • Adekunle, V.A., Olagoke, A.O., Akindele, S.O. 2013. Tree species diversity and structure of a Nigerian strict nature reserve. Tropical Ecology, 54(3): 275-289
  • Aigbe, H.I. and Omokhua, G.E. 2015. Tree species composition and diversity in Oban Forest Reserve, Nigeria. Journal of Agricultural Studies, 3(1): 10-24
  • Aregheore, E.M. 2009. Country Pasture/Forage Resource Profiles Nigeria. Food and Agriculture Organization of the United Nations (FAO) Rome Italy Pp 42
  • Attua. E.M. and Pabi O. 2013. Tree species composition, richness and diversity in the northern forest-savanna ecotone of Ghana. Journal of Applied Biosciences 69:5437 – 5448
  • Bello, A. G., Isah, A.D and Ahmad, B. 2013. Tree species diversity analysis of Kogo forest reserve in north-western Nigeria. International Journal of Plant, Animal and Environmental Sciences 3(3):189 - 196. Accessed from www.ijpaes.com on 12/01/2016.
  • Brashears, M. B., Fajvan, M.A and Schuler. T.M. 2004. An assessment of canopy stratification and tree species diversity following clear cutting in central Appalachian hardwoods. Forest Science 50: 54-64.
  • Buba, T. 2015. Impacts of Different Tree Species of Different Sizes on Spatial Distribution of Herbaceous Plants in the Nigerian Guinea Savannah Ecological Zone. Scientifica Volume 2015 1 – 8 http://dx.doi.org/10.1155/2015/106930
  • Curtis, J.T. 1959. The vegetation of Wiscousin. An ordination of plant community. University Wisconsin Press, Madison, Wisconsin, pp. 657
  • Curtis, J.T., McIntosh, R.P. 1950. The interrelations of certain analytic and synthetic phytosociological characters. Ecology, 31: 434-455.
  • Endress, A.G. 1990. The importance of diversity in selecting trees for urban areas. Journal of Arboriculture 16(6):143 – 147
  • Ikyaagba, T. E., Tee, T. N., Dagba, B.I., Ancha, U. P., Ngibo, K. D., and Tume, C. 2015. Tree composition and distribution in federal university of agriculture makurdi, Nigeria. Journal of research in forestry, wildlife and environment, 7 (2):147 – 157.
  • Iloeje, N.P. 2001. A new geography of Nigeria. New Revised Edition. Longman Nigeria PLC. 200 p
  • Magurran, A.E. 1988. Ecological diversity and its measurement. Published by springer Netherland 1988
  • Naibbi., A.I., Baily, B., Healey, R.G. and Collier, P. 2014. Changing Vegetation Patterns in Yobe State Nigeria: An Analysis of the Rates of Change, Potential Causes and the Implications for Sustainable Resource Management,. International Journal of Geosciences, 2014, 5, 50-62 http://dx.doi.org/10.4236/ijg.2014.51007
  • Naidu, M.T and Kumar O.A 2016. Tree diversity, stand structure, and community composition of tropical forests in Eastern Ghats of Andhra Pradesh, India. Journal of Asia-Pacific Biodiversity 9:328-334
  • Ogunjemite, B.G. 2015. Assessment of floristic composition of Ologbo Concession, Edo State, Nigeria, for conservation planning Revue Scientifique et Technique Forêt et Environnement du Bassin du Congo 4:10-19
  • Osawaru, M. E, Ogwu M.C, and Aiwansoba R.O. 2015. Hierarchical Approaches to the Analysis of Genetic Diversity in Plants: A Systematic Overview. University of Mauritius Research Journal 21:1 – 36
  • Pielou, E.C. 1966. The measurement of diversity in different types of biological collections. Journal of Theoretical Biology 13:131-144.
  • Redhead, J.F. 1971. Timber resource of Nigeria. Niger. J. For., 1:7 -11
  • Saka, M. G Jatau, D.F and Olaniyi, W.A 2013. Status of indigenous tree species in girei forest reserve of Adamawa state. Journal of research in forestry, wildlife and environmental 5(1):28 – 40
  • Scholes, R.J, Archer S.R. 1997. Tree-grass interactions in savannas. Annu. Rev. Ecol. Syst. 28:517–44
  • Simpson, E.H. 1949. Measurement of Diversity. Nature 163:688.
  • Shannon, C.E, Weiner, W. 1963. The Mathematical Theory of Communication. Urbana: University of Illinois Press
  • Swingland, I. R. 2001. Biodiversity, Definition of. Encyclopedia of Biodiversity 1, 377-390
  • Tukur, R. 2013. Access use and management of tree and shrubs in the savanna: an approach to environmental sustainability in northern Nigeria Lambert academic publishing Pp 97. Accessed from http://www.academia.com on 12/01/2016.
  • Varshney, A and Anis, M. 2014. Trees: Propagation and Conservation Biotechnological Approaches for Propagation of a Multipurpose Tree, Balanites aegyptiaca Del. Springer New Delhi Dordrecht Heidelberg London New York Pp 116
  • Wakawa, L.D., Adam, L.I., Bichi, A.M. 2016. Tree Species Composition within Kano State University of Science and Technology Wudil, Kano State, Nigeria. Journal of Research in Forestry, Wildlife and Environment 8(2):100-111. Available online at http://www.ajol.info/index.php/jrfwe
  • Zakaluk, R and Sri Ranjan, R. 2008. Predicting the leaf water potential of potato plants using RGB reflectance. Canadian Biosystems engineering 50:7.1 – 7.12

Tree Species Biodiversity of a Sahelien Ecosystem in North-East Nigeria

Yıl 2017, Cilt: 19 Sayı: 2, 166 - 173, 01.12.2017

Öz

Trees species are crucial part of the ecosystem,
they provides tangible and intangible benefits. The need for periodic
assessment of these resources for management and conservation purposes is
imperative. This study was therefore carried out to assess the tree species composition,
diversity and richness of a Sahel ecosystem with the view of providing
information for management and conservation purposes. The study area was
stratified into three (3) from which transect of 1000 m was laid in each of the
strata. 12 Sample plots of 40 m × 40 m in size were established in alternate
position along each transect at 40 m interval. The height and diameter at
breast height (dbh) of all living trees with dbh ≥10.0 cm were measured and
counted. The results from the study show that the study area has a total of 174
trees, 8 species and 14 Families. Margalef's index of species richness of 2.52,
Pielou's species evenness index (EH) of 0.38, Shannon-Weiner index (H') of 1.97
and Simpson index of dominance (D) of 0.46 were recorded. The recorded
biodiversity indices indicate a poor state of tree species, richness,
composition and distribution within the environment.

Kaynakça

  • Adekunle, V.A., Olagoke, A.O., Akindele, S.O. 2013. Tree species diversity and structure of a Nigerian strict nature reserve. Tropical Ecology, 54(3): 275-289
  • Aigbe, H.I. and Omokhua, G.E. 2015. Tree species composition and diversity in Oban Forest Reserve, Nigeria. Journal of Agricultural Studies, 3(1): 10-24
  • Aregheore, E.M. 2009. Country Pasture/Forage Resource Profiles Nigeria. Food and Agriculture Organization of the United Nations (FAO) Rome Italy Pp 42
  • Attua. E.M. and Pabi O. 2013. Tree species composition, richness and diversity in the northern forest-savanna ecotone of Ghana. Journal of Applied Biosciences 69:5437 – 5448
  • Bello, A. G., Isah, A.D and Ahmad, B. 2013. Tree species diversity analysis of Kogo forest reserve in north-western Nigeria. International Journal of Plant, Animal and Environmental Sciences 3(3):189 - 196. Accessed from www.ijpaes.com on 12/01/2016.
  • Brashears, M. B., Fajvan, M.A and Schuler. T.M. 2004. An assessment of canopy stratification and tree species diversity following clear cutting in central Appalachian hardwoods. Forest Science 50: 54-64.
  • Buba, T. 2015. Impacts of Different Tree Species of Different Sizes on Spatial Distribution of Herbaceous Plants in the Nigerian Guinea Savannah Ecological Zone. Scientifica Volume 2015 1 – 8 http://dx.doi.org/10.1155/2015/106930
  • Curtis, J.T. 1959. The vegetation of Wiscousin. An ordination of plant community. University Wisconsin Press, Madison, Wisconsin, pp. 657
  • Curtis, J.T., McIntosh, R.P. 1950. The interrelations of certain analytic and synthetic phytosociological characters. Ecology, 31: 434-455.
  • Endress, A.G. 1990. The importance of diversity in selecting trees for urban areas. Journal of Arboriculture 16(6):143 – 147
  • Ikyaagba, T. E., Tee, T. N., Dagba, B.I., Ancha, U. P., Ngibo, K. D., and Tume, C. 2015. Tree composition and distribution in federal university of agriculture makurdi, Nigeria. Journal of research in forestry, wildlife and environment, 7 (2):147 – 157.
  • Iloeje, N.P. 2001. A new geography of Nigeria. New Revised Edition. Longman Nigeria PLC. 200 p
  • Magurran, A.E. 1988. Ecological diversity and its measurement. Published by springer Netherland 1988
  • Naibbi., A.I., Baily, B., Healey, R.G. and Collier, P. 2014. Changing Vegetation Patterns in Yobe State Nigeria: An Analysis of the Rates of Change, Potential Causes and the Implications for Sustainable Resource Management,. International Journal of Geosciences, 2014, 5, 50-62 http://dx.doi.org/10.4236/ijg.2014.51007
  • Naidu, M.T and Kumar O.A 2016. Tree diversity, stand structure, and community composition of tropical forests in Eastern Ghats of Andhra Pradesh, India. Journal of Asia-Pacific Biodiversity 9:328-334
  • Ogunjemite, B.G. 2015. Assessment of floristic composition of Ologbo Concession, Edo State, Nigeria, for conservation planning Revue Scientifique et Technique Forêt et Environnement du Bassin du Congo 4:10-19
  • Osawaru, M. E, Ogwu M.C, and Aiwansoba R.O. 2015. Hierarchical Approaches to the Analysis of Genetic Diversity in Plants: A Systematic Overview. University of Mauritius Research Journal 21:1 – 36
  • Pielou, E.C. 1966. The measurement of diversity in different types of biological collections. Journal of Theoretical Biology 13:131-144.
  • Redhead, J.F. 1971. Timber resource of Nigeria. Niger. J. For., 1:7 -11
  • Saka, M. G Jatau, D.F and Olaniyi, W.A 2013. Status of indigenous tree species in girei forest reserve of Adamawa state. Journal of research in forestry, wildlife and environmental 5(1):28 – 40
  • Scholes, R.J, Archer S.R. 1997. Tree-grass interactions in savannas. Annu. Rev. Ecol. Syst. 28:517–44
  • Simpson, E.H. 1949. Measurement of Diversity. Nature 163:688.
  • Shannon, C.E, Weiner, W. 1963. The Mathematical Theory of Communication. Urbana: University of Illinois Press
  • Swingland, I. R. 2001. Biodiversity, Definition of. Encyclopedia of Biodiversity 1, 377-390
  • Tukur, R. 2013. Access use and management of tree and shrubs in the savanna: an approach to environmental sustainability in northern Nigeria Lambert academic publishing Pp 97. Accessed from http://www.academia.com on 12/01/2016.
  • Varshney, A and Anis, M. 2014. Trees: Propagation and Conservation Biotechnological Approaches for Propagation of a Multipurpose Tree, Balanites aegyptiaca Del. Springer New Delhi Dordrecht Heidelberg London New York Pp 116
  • Wakawa, L.D., Adam, L.I., Bichi, A.M. 2016. Tree Species Composition within Kano State University of Science and Technology Wudil, Kano State, Nigeria. Journal of Research in Forestry, Wildlife and Environment 8(2):100-111. Available online at http://www.ajol.info/index.php/jrfwe
  • Zakaluk, R and Sri Ranjan, R. 2008. Predicting the leaf water potential of potato plants using RGB reflectance. Canadian Biosystems engineering 50:7.1 – 7.12
Toplam 28 adet kaynakça vardır.

Ayrıntılar

Bölüm Biodiversity, Environmental Management and Policy, Sustainable Forestry
Yazarlar

Lucky Wakawa

Aminu Suleıman Bu kişi benim

Yakubu Ibrahım Bu kişi benim

Lawan Adam Bu kişi benim

Yayımlanma Tarihi 1 Aralık 2017
Yayımlandığı Sayı Yıl 2017 Cilt: 19 Sayı: 2

Kaynak Göster

APA Wakawa, L., Suleıman, A., Ibrahım, Y., Adam, L. (2017). Tree Species Biodiversity of a Sahelien Ecosystem in North-East Nigeria. Bartın Orman Fakültesi Dergisi, 19(2), 166-173. https://doi.org/10.24011/barofd.327669


Bartin Orman Fakultesi Dergisi Editorship,

Bartin University, Faculty of Forestry, Dean Floor No:106, Agdaci District, 74100 Bartin-Turkey.

Tel: +90 (378) 223 5094, Fax: +90 (378) 223 5062,

E-mail: bofdergi@gmail.com