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The Mara–Loita migration collapses by about 81%

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The separate Kenyan Mara–Loita wildebeest population fell from 123,930 animals in 1977–78 to under 20,000 by 2016, a decline of about 80.9%, driven principally by mechanised wheat farming spreading across the Loita Plains from the early 1980s and by fencing and settlement. The neighbouring Athi–Kaputiei migration collapsed further still, by roughly 95%.

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Assembled narrative · 1

Assembled from 41 blocks · 1 evidence · 39 related

  1. Story
  2. The separate Kenyan Mara–Loita wildebeest population fell from 123,930 animals in 1977–78 to under 20,000 by 2016, a decline of about 80.9%, driven principally by mechanised wheat farming spreading across the Loita Plains from the early 1980s and by fencing and settlement. The neighbouring Athi–Kaputiei migration collapsed further still, by roughly 95%.
  3. Knowledge
  4. Blue Wildebeest (Connochaetes taurinus)
  5. Maasai Mara National Reserve
  6. The Mara–Loita migration collapses by about 81%
  7. Connections
  8. Blue Wildebeest (Connochaetes taurinus)
  9. Maasai Mara National Reserve
  10. Serengeti–Mara Rainfall Gradient
  11. Thomson's Gazelle (Eudorcas thomsonii)
  12. Western Corridor and Grumeti Reserves
  13. Southern Serengeti Short-Grass Plains
  14. Serengeti National Park
  15. Southern Serengeti Short-Grass Plains
  16. Mara River
  17. Plains Zebra (Equus quagga)
  18. Nile Crocodile (Crocodylus niloticus)
  19. Spotted Hyena (Crocuta crocuta)
  20. Serengeti Biodiversity Programme
  21. Rinderpest disappears from the Serengeti–Mara ecosystem
  22. The wildebeest population irrupts from roughly 250,000 to over a million
  23. Drought kills roughly a quarter of the wildebeest population
  24. The Mara–Loita migration collapses by about 81%
  25. Edge degradation squeezes wildlife into the ecosystem core
  26. The rut
  27. The calving pulse on the short-grass plains
  28. The herds cross the Grumeti River in the western corridor
  29. The Mara River crossings
  30. TAWIRI Aerial Point Survey estimates 1,366,109 wildebeest
  31. AI satellite survey returns fewer than 600,000, and is contested
  32. Serengeti National Park
  33. Community conservancy (CBNRM model)
  34. Mara River
  35. The Mara–Loita migration collapses by about 81%
  36. Edge degradation squeezes wildlife into the ecosystem core
  37. The Mara River crossings
  38. African lion (Panthera leo)
  39. Kenya bans sport hunting nationwide
  40. Evidence
  41. The Mara–Loita wildebeest population fell about 80.9% from 123,930 in 1977–78 to under 20,000 by 2016, and the Athi–Kaputiei population by about 95%, driven by mechanised wheat farming, fencing, settlement and infrastructure
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/atlas?object=EVT_MARA_LOITA_DECLINE&experience=EVT_MARA_LOITA_DECLINE