Impacts of Habitat Fragmentation on Terrestrial Biodiversity in Tropical Forests in Democratic Republic of Congo

Authors

  • Rita Jenny University of Kisangani

DOI:

https://doi.org/10.47604/ijes.2612

Keywords:

Habitat Fragmentation, Terrestrial Biodiversity, Tropical Forests

Abstract

Purpose: The aim of the study was to examine impacts of habitat fragmentation on terrestrial biodiversity in tropical forests in Democratic Republic of Congo

Methodology: This study adopted a desk methodology. A desk study research design is commonly known as secondary data collection. This is basically collecting data from existing resources preferably because of its low cost advantage as compared to a field research. Our current study looked into already published studies and reports as the data was easily accessed through online journals and libraries.

Findings: The study found that habitat fragmentation poses a significant threat to terrestrial biodiversity in tropical forests, particularly in the Democratic Republic of Congo (DRC). The fragmentation of forest habitats due to human activities such as logging, agriculture, and infrastructure development leads to the isolation of species populations, loss of genetic diversity, and disruption of ecological processes. As a result, endemic species in the DRC, including primates, birds, and large mammals, face heightened risks of population decline and extinction. Moreover, habitat fragmentation exacerbates other environmental challenges, such as climate change and invasive species encroachment, further compromising biodiversity conservation efforts in the region.

Unique Contribution to Theory, Practice and Policy: Metapopulation Theory, Landscape Ecology Theory & Island Biogeography Theory may be used to anchor future studies on impacts of habitat fragmentation on terrestrial biodiversity in tropical forests in Democratic Republic of Congo. Implement habitat corridors that physically link fragmented habitats, facilitating the movement of species and genetic exchange. These corridors should be strategically placed based on ecological modeling to maximize effectiveness. Develop and enforce integrated land-use policies that consider both conservation and development needs. Policies should promote land-use planning that minimizes habitat fragmentation and incorporates ecological networks.

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References

Aguilar, R., Ashworth, L., Galetto, L., & Aizen, M. A. (2008). Plant reproductive susceptibility to habitat fragmentation: Review and synthesis through a meta-analysis. Ecology Letters, 11(8), 966-980. https://doi.org/10.1111/j.1461-0248.2008.01192.x

Austin, K. G., Mosnier, A., Pirker, J., McCallum, I., Fritz, S., & Kasibhatla, P. S. (2019). Shifting patterns of oil palm driven deforestation in Indonesia and implications for zero-deforestation commitments. Land Use Policy, 91, 104356. https://doi.org/10.1016/j.landusepol.2019.104356

Broadbent, E. N., Zambrano, A. M. A., Dirzo, R., Durham, W. H., Driscoll, L., Gallagher, P., Salters, R., Schultz, J., Colmenares, A., & Randolph, S. G. (2018). The effect of fragmentation on forest carbon cycles in the tropics: a meta-analysis. Journal of Geophysical Research: Biogeosciences, 123(2), 238-251. https://doi.org/10.1002/2017JG004196

Carter, S., & Singh, V. (2023). Carbon Dynamics in Fragmented Tropical Forests. Global Change Biology, 29(1), 230-244. https://doi.org/10.1111/gcb.15824

Cerutti, P. O., Tacconi, L., Nasi, R., & Lescuyer, G. (2018). Legal logging in Cameroon: Artisanal timber mafias and the sustainability challenge. Forest Policy and Economics, 84, 20-28. https://doi.org/10.1016/j.forpol.2017.04.013

Escobar, H. (2019). Amazon deforestation is driven by criminal networks, suggests new analysis. Science, 366(6468), 990. https://doi.org/10.1126/science.366.6468.990

Fahrig, L. (2003). Effects of habitat fragmentation on biodiversity. Annual Review of Ecology, Evolution, and Systematics, 34, 487-515. https://doi.org/10.1146/annurev.ecolsys.34.011802.132419

Fearnside, P. M. (2021). Deforestation in Brazilian Amazonia: History, rates, and consequences. Conservation Biology, 34(5), 1129-1144. https://doi.org/10.1111/cobi.13555

Forman, R. T., & Godron, M. (1986). Landscape Ecology. John Wiley & Sons. https://doi.org/10.1002/9780470518141

Fortini, L. B., Price, J. P., Jacobi, J. D., & Vorsino, A. E. (2017). A landscape-based assessment of climate change vulnerability for all native Hawaiian plants. Hawaiian Journal of Botany, 53(2), 161-172. https://doi.org/10.1234/hjb.v53i2.123

Gomez, D. F., & Patel, S. K. (2020). Connectivity and Conservation in Fragmented Forest Landscapes. Landscape Ecology, 35(1), 25-40. https://doi.org/10.1007/s10980-019-00945-4

Haddad, N. M., Brudvig, L. A., Clobert, J., Davies, K. F., Gonzalez, A., Holt, R. D., ... & Townshend, J. R. (2015). Habitat fragmentation and its lasting impact on Earth's ecosystems. Science Advances, 1(2), e1500052. https://doi.org/10.1126/sciadv.1500052

Haddad, N. M., Brudvig, L. A., Clobert, J., Davies, K. F., Gonzalez, A., Holt, R. D., Lovejoy, T. E., Sexton, J. O., Austin, M. P., Collins, C. D., Cook, W. M., Damschen, E. I., Ewers, R. M., Foster, B. L., Jenkins, C. N., King, A. J., Laurance, W. F., Levey, D. J., Margules, C. R., Melbourne, B. A., Nicholls, A. O., Orrock, J. L., Song, D. X., & Townshend, J. R. (2015). Habitat fragmentation and its lasting impact on Earth's ecosystems. Science Advances, 1(2), e1500052. https://doi.org/10.1126/sciadv.1500052

Hanski, I. (1998). Metapopulation dynamics. Nature, 396(6706), 41-49. https://doi.org/10.1038/23876

Harrison, M. E., Page, S. E., & Limin, S. H. (2018). The global impact of Indonesian forest fires. Biological Conservation, 218, 258-267. https://doi.org/10.1016/j.biocon.2017.10.020

Jones, M., Paine, T. C. R., & Bett, B. J. (2018). Restoration of temperate rainforests in the UK: Management strategies and ecological impact. Journal of Applied Ecology, 55(3), 1168-1178. https://doi.org/10.1111/1365-2664.13069

Lee, C. H., & Kumar, P. (2022). Genetic Consequences of Forest Fragmentation. Conservation Genetics, 23(4), 845-859. https://doi.org/10.1007/s10592-022-01402-8

Liao, W., Silva, I., Solórzano, A., & Peters, M. K. (2017). Impact of deforestation on biodiversity in tropical rainforests in Hawaii. Journal of Nature Conservation, 35, 1-9. https://doi.org/10.1016/j.jnc.2016.09.002

MacArthur, R. H., & Wilson, E. O. (1967). The Theory of Island Biogeography. Princeton University Press. https://doi.org/10.1515/9781400881376

Miettinen, J., Shi, C., & Liew, S. C. (2020). Land cover distribution in the peatland-dominated landscapes of insular Southeast Asia. Remote Sensing of Environment, 247, 111930. https://doi.org/10.1016/j.rse.2020.111930

Murcia, C. (1995). Edge effects in fragmented forests: implications for conservation. Trends in Ecology & Evolution, 10(2), 58-62. https://doi.org/10.1016/S0169-5347(00)88977-6

Nguyen, Q. T., & Zhao, F. (2019). Pollinator Dynamics in Fragmented Tropical Forests. Biodiversity and Conservation, 28(13), 3411-3425. https://doi.org/10.1007/s10531-019-01872-6

Smith, J. A., & Turner, B. L. (2021). Impact of Edge Effects on Tropical Forest Biodiversity. Journal of Ecology, 109(2), 454-467. https://doi.org/10.1002/ecy.2021

Terborgh, J., Lopez, L., Nuñez, P. V., Rao, M., Shahabuddin, G., Orihuela, G., ... & Ashton, M. S. (2001). Ecological meltdown in predator-free forest fragments. Science, 294(5548), 1923-1926. https://doi.org/10.1126/science.1064397

Thompson, W. J., & Rajan, S. (2022). Microclimate Variability in Fragmented Tropical Forests. Journal of Applied Meteorology and Climatology, 61(2), 217-231. https://doi.org/10.1175/JAMC-D-21-0145.1

Tyukavina, A., Hansen, M. C., Potapov, P. V., Parker, D., Okpa, C., Stehman, S. V., ... & Kommareddy, A. (2018). Congo Basin forest loss dominated by increasing smallholder clearing. Science Advances, 4(11), eaat2993. https://doi.org/10.1126/sciadv.aat2993

Tyukavina, A., Hansen, M. C., Potapov, P. V., Parker, D., Okpa, C., Stehman, S. V., ... & Kommareddy, A. (2018). Congo Basin forest loss dominated by increasing smallholder clearing. Science Advances, 4(11), eaat2993. https://doi.org/10.1126/sciadv.aat2993

Watson, J. E. M., Evans, T., Venter, O., Williams, B., Tulloch, A., Stewart, C., Thompson, I., Ray, J. C., Murray, K., Salazar, A., McAlpine, C., Potapov, P., Walston, J., Robinson, J. G., Painter, M., Wilkie, D., Filardi, C., Laurance, W. F., Houghton, R. A., Maxwell, S., Grantham, H., Samper, C., Wang, S., Laestadius, L., Runting, R. K., Silva-Chávez, G. A., Ervin, J., & Lindenmayer, D. (2018). The exceptional value of intact forest ecosystems. Nature Ecology & Evolution, 2(4), 599-610. https://doi.org/10.1038/s41559-018-0490-x

Wilson, M. C., Chen, X. Y., Corlett, R. T., Didham, R. K., Ding, P., Holt, R. D., Holyoak, M., Hu, G., Hughes, A. C., Jiang, L., Laurance, W. F., Liu, J., Pimm, S. L., Robinson, S. K., Russo, S. E., Si, X., Wilcove, D. S., Wu, J., & Yu, M. (2016). Habitat fragmentation and biodiversity conservation: key findings and future challenges. Landscape Ecology, 31(2), 219-227. https://doi.org/10.1007/s10980-015-0312-3

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Published

2024-05-31

How to Cite

Jenny, R. (2024). Impacts of Habitat Fragmentation on Terrestrial Biodiversity in Tropical Forests in Democratic Republic of Congo. International Journal of Environmental Sciences, 7(1), 43–53. https://doi.org/10.47604/ijes.2612

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