Spatio-temporal variations of the LUCC of the Djoudj National Bird Sanctuary in the past 40 years and its sustainable development

Abstract

Djoudj National Bird Sanctuary, as a UNESCO natural heritage site, is a critical habitat for migratory birds along the East Atlantic Flyway (EAF). The bird habitat has undergone the dramatic variations of the Land Use and Land Cover Change (LUCC) under the influence of climate change and human activities, posing a serious threat to the survival of migratory birds along the EAF. In order to explore the spatio-temporal variations of LUCC in Djoudj National Bird Sanctuary during 1984 to 2023, this study employs multitemporal satellite image data to extract the LUCC of this heritage site and adjacent region, and comprehensively analyze the impact factors induced the variations of LUCC. Our results show that it went through two stages of the significant change in LUCC over the past 40 years. The first stage of significant change is from 1984 to 1990, when the areas of soil land and saline soil land had largely transformed into water bodies, vegetation, and wetlands. The areas of soil and saline soil land were decreased by 28.86% and 8.96%, respectively. Meanwhile, the areas of wetland, water body and vegetation increased to 30.53%, 4.92% and 2.37%, separately. The second stage of significant change in LUCC is from 2000 to 2010, while the area of vegetation (including the invasive plants) increased significantly to 54.02%, and the areas of water bodies, wetlands, and saline soil areas decreased to 6.19%, 10.37%, and 10.05% respectively. At the same time, the area of agricultural land around the heritage site rapidly increased from 13.292 km² in 2006 to 114.2603 km² in 2023. These significant variations of LUCC led to a decrease in the number of migratory birds, and the Djoudj National Bird Sanctuary had been listed as List of World Heritage in Danger twice by the World Heritage Committee. The major factors contributing to these significant changes in LUCC are mainly caused by human activities, such as the construction of the Diama Dam and improper use of upstream of the dam, as well as the expansion of agricultural land around the heritage site. Thus, we suggest that the heritage administrative authorities should make relevant measures to scientifically minimize the impact of human activities on ecosystem of the heritage site, and conduct regularly an integrated “space-to-ground” monitoring and assessment of water usage of the dam, controlling of invasive plants, strictly regulating the expansion of agricultural land within the heritage site and adjacent region.

Keywords

East Atlantic Flyway / migratory bird habitat / land use and land cover change / natural heritage site / space intergrated monitoring and assessment

References

[1] L. Albed, L. Kumar, Y.Y. Aldakheel. Assessing soil sainity using soil sainity and vegetation indices derived from IKONOS high-spatial resolution imageries: Applications in a date palm dominated region. Geoderma, 230-231 (17) (2014), pp. 1-8, 10.1016/j.geoderma.2014.03.025

[2] J.A. Allcock, T.C. Bonebrake, Y.H. Sung, C. Dingle.Shifts in phenology of autumn migration and wing length among reedbed passerines along the East Asian-Australasian Flyway. Avian Research, 13 (2022), Article 100052, 10.1016/j.avrs.2022.100052

[3] AQUASTAT Programme.Dams and agriculture in Africa. Retrieved from https://www.fao.org/fishery/en/publications/56890 (2007)

[4] J.P. Barusseau, M. Bâ, C. Descamps, E.S. Diop, B. Diouf, A. Kane, … A. Soumaré. Morphological and sedimentological changes in the Senegal River estuary after the construction of the Diama dam. Journal of African Earth Sciences, 26 (2) (1998), pp. 317-326, 10.1016/S0899-5362(98)00014-1

[5] A.J. Beintema. Management of the Djoudj National Park in Senegal. Landscape and Urban Planning, 20 (1-3) (1991), pp. 81-84, 10.1016/0169-2046(91)90095-4

[6] V. Claudino-Sales. Djoudj National Bird Sanctuary, Senegal. V. Claudino-Sales (Ed.), Coastal world heritage sites, Springer, Dordrecht (2019), 10.1007/978-94-024-1528-5_3

[7] C. Cortes, V. Vapnik. Support-vector networks. Machine Learning, 20 (3) (1995), pp. 273-297, 10.1007/BF00994018

[8] C.P. Deniau, R. Mathevet, D. Gautier, A. Besnard, G. Cornu, S. Le Bel.Flyways to hell? An empirical assessment of Palearctic migratory waterbird harvest practices in key wetlands of Sahel-sub-Saharan Africa. Biological Conservation, 265 (2022), Article 109419, 10.1016/j.biocon.2021.109419

[9] A.Y. Diallo, T. Piersma, A.O.K. Eerden, S. Ndiaye, P.I. Ndiaye. Seasonal occurrence and daytime behaviour of Eurasian spoonbills Platalea leucorodia leucorodia in Senegal’s Atlantic coastal areas. Waterbirds, 45 (2) (2023), pp. 199-205, 10.1675/063.045.0210

[10] K. Ferretti-Gallon, E. Griggs, A. Shrestha, G. Wang. National parks best practices: Lessons from a century's worth of national parks management. International Journal of Geoheritage and Parks, 9 (3) (2021), pp. 335-346, 10.1016/j.ijgeop.2021.05.004

[11] A.D. Gregorio, L.J. Jansen.Land cover classification system. (2000) Retrieved from https://www.fao.org/3/x0596e/x0596e00.htm

[12] X.Y. Guo, B.H. Fu, J. Du, P.L. Shi, J.X. Li, Z. Li, … H. Fu. Monitoring and assessment for the susceptibility of landslide changes after the 2017 Ms 7.0 Jiuzhaigou earthquake using the remote sensing technology. Frontiers in Earth Science, 9 (2021), Article 633117, 10.3389/feart.2021.633117

[13] G. Gutman, A. Lgnatov. The derivation of the green vegetation fraction from NOAA/AVHRR data for use in numerical weather prediction models. International Journal of Remote Sensing, 19 (8) (1998), pp. 1533-1543, 10.1080/014311698215333

[14] A. Hamoud, H. El Hadi, A. Tahiri, S. Chakiri, S. Mehdioui, B. Baghdad, A. El Maidani, Z. Bejjaji, M. Aoufa. Mauritanian geological resources: A lever for sustainable regional development via geotourism. International Journal of Geoheritage and Parks, 9 (4) (2021), pp. 415-429, 10.1016/j.ijgeop.2021.11.003

[15] R. Jeroen. Climate change effects on Wadden Sea birds along the East-Atlantic flyway. Wadden Academy, Leiden (2020)

[16] R. Khatami, G. Mountrakis, S.V. Stehman. A meta-analysis of remote sensing research on supervised pixel-based land-cover image classification processes: General guidelines for practitioners and future research. Remote Sensing of Environment, 177 (2016), pp. 89-100, 10.1016/j.rse.2016.02.028

[17] J.X. Li, B.H. Fu. Pattern change of the coastal wetland system and its dynamic impact on the habitat of red-crowned cranes in Yancheng, Jiangsu Province. National Remote Sensing Bulletin, 25 (12) (2021), pp. 2507-2519, 10.11834/jrs.20210606 (in Chinese)

[18] Q. Liang, J. Zhai, C. Li.From separation to incorporation: Development of a unifying framework that integrated bird habitats with public recreation spaces within the wetland park system. Journal of Cleaner Production, 430 (2023), Article 139647, 10.1016/j.jclepro.2023.139647

[19] Ma Z.J.(2009). Methods and research progress in the study of bird migration. Bulletin of Biology, 44 (3),5-9.(In Chinese).

[20] Ma Z.J., Li B., & Chen J.K. (2005). Study on the utilitizaion of stopover sites and migration strategies of migratory birds. Acta Ecologica Sinica. 25(6), 1404-1412. (In Chinese)

[21] J. Monteillet, A. Kane, J. Saos. Les environments sédimentaires du bas Sénégal après les barrages de Diama et de Manantali [Sedimentary environnements in the lower Senegal river after the settlementof Diama and Manantali dams]. Geobios, 26 (6) (1993), pp. 751-760, 10.1016/S0016-6995(93)80059-Z

[22] F.D. Ngom, S. Tweed, J.-C. Bader, J.-L. Saos, R. Malou, C. Leduc, M. Leduc. Rapid evolution of water resources in the Senegal delta. Global and Planetary Change, 144 (2016), pp. 34-47, 10.1016/j.gloplacha.2016.07.002

[23] T. Patrick, A. Tiéga, D. Pritchard. Report of the experts mission to Djoudj National Bird Sanctuary, Senegal (UNSECO Report WHC-2000/CONF. 203/INF.8). (2000). Retrieved from UNESCO website: https://unesdoc.unesco.org/ark:/48223/pf0000384500

[24] K. Peng, W. Jiang, P. Hou, Z. Wu, Z. Ling, X. Wang, Z. Niu, D. Mao.Continental-scale wetland mapping: A novel algorithm for detailed wetland types classification based on time series Sentinel-1/2 images. Ecological Indicators, 148 (2023), Article 110113, 10.1016/j.ecolind.2023.110113

[25] H. Qian, N. Bao, D. Meng, B. Zhou, H. Lei, H. Li.Mapping and classification of Liao River Delta coastal wetland based on time series and multi-source GaoFen images using stacking ensemble model. Ecological Informatics, 80 (2024), Article 102488, 10.1016/j.ecoinf. 2024.102488

[26] J. Rogan, J. Franklin, D.A. Roborts. A comparison of methods for monitoring multitemporal vegetation change using thematic mapper imagery. Remote Sensing of Environment, 80 (1) (2002), pp. 143-156, 10.1016/S0034-4257(01)00296-6

[27] D.A. Ruban, A.V. Mikhailenko, N.N. Yashalova, A.V. Scherbina. Global geoparks: Opportunity for developing or “toy” for developed. International Journal of Geoheritage and Parks, 11 (1) (2023), pp. 54-63, 10.1016/j.ijgeop.2022.11.003

[28] N. Seifert, C. Tegetmeyer, A. Schmitz Ornés. Habitat selection, home range and population size of Baillon’s Crake Zapornia pusilla in the Senegal Delta, North-West Senegal. Bird Conservation International, 28 (1) (2017), pp. 38-58, 10.1017/S0959270 917000077

[29] M. Shackley. Appendix 1-The world heritage list (December 1996). M. Shackley (Ed.), Visitor management: Case studies from World Heritage Sites, Elsevier, Amsterdam (1998), 10.1016/B978-0-7506-4783-0.50016-1

[30] UNSECO.Djoudj National Bird Sanctuary-UNESCO World Heritage Centre. Retrieved from https://whc.unesco.org/en/list/25/ (2023)

[31] Y. Wang, G. Cai, L. Yang, N. Zhang, M. Du. Monitoring of urban ecological environment including air quality using satellite imagery. PLoS One, 17 (8) (2022), Article e0266759, 10.1371/journal.pone.0266759

[32] K. Whitney. Domesticating nature? Surveillance and conservation of migratory shorebirds in the “Atlantic Flyway”. Studies in History and Philosophy of Biological and Biomedical Science Part C :Studies in History and Philosophy of Biological and Biomedical Sciences, 45 (1) (2014), pp. 78-87, 10.1016/j.shpsc.2013.10.008

[33] J. Xie, B. Xie, K. Zhou, J. Li, J. Xiao, C. Liu, X. Zhang.Evolution of bird habitat quality driving mechanisms and ecological network weights. Global Ecology and Conservation, 46 (2023), Article e02618, 10.1016/j.gecco.2023.e02618

[34] H.Q. Xu. A study on information extraction of water body with the modified normalized difference water index (MNDWI). National Remote Sensing Bulletin, 9 (5) (2005), pp. 589-595, 10.11834/jrs.20050586 (in Chinese)

[35] Y.S. Zhao. Principles and methods of remote sensing applications analysis. Science Press, Beijing (2013) (In Chinese)