Publikation:

Long Distance Seed Dispersal by Forest Elephants

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2021

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Poulsen, John R.
Beirne, Christopher
Rundel, Colin
Baldino, Melissa
Kim, Seokmin
Knorr, Julia
Minich, Taylor
Jin, Lingrong
Xiao, Shuyun
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Frontiers in Ecology and Evolution. Frontiers. 2021, 9, 789264. eISSN 2296-701X. Available under: doi: 10.3389/fevo.2021.789264

Zusammenfassung

By dispersing seeds long distances, large, fruit-eating animals influence plant population spread and community dynamics. After fruit consumption, animal gut passage time and movement determine seed dispersal patterns and distances. These, in turn, are influenced by extrinsic, environmental variables and intrinsic, individual-level variables. We simulated seed dispersal by forest elephants (Loxodonta cyclotis) by integrating gut passage data from wild elephants with movement data from 96 individuals. On average, elephants dispersed seeds 5.3 km, with 89% of seeds dispersed farther than 1 km. The longest simulated seed dispersal distance was 101 km, with an average maximum dispersal distance of 40.1 km. Seed dispersal distances varied among national parks, perhaps due to unmeasured environmental differences such as habitat heterogeneity and configuration, but not with human disturbance or habitat openness. On average, male elephants dispersed seeds farther than females. Elephant behavioral traits strongly influenced dispersal distances, with bold, exploratory elephants dispersing seeds 1.1 km farther than shy, idler elephants. Protection of forest elephants, particularly males and highly mobile, exploratory individuals, is critical to maintaining long distance seed dispersal services that shape plant communities and tropical forest habitat.

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570 Biowissenschaften, Biologie

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seed dispersal, elephant, tropical forest, animal movement, central Africa, gut passage time, long distance dispersal

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ISO 690POULSEN, John R., Christopher BEIRNE, Colin RUNDEL, Melissa BALDINO, Seokmin KIM, Julia KNORR, Taylor MINICH, Lingrong JIN, Chase L. NUNEZ, Shuyun XIAO, 2021. Long Distance Seed Dispersal by Forest Elephants. In: Frontiers in Ecology and Evolution. Frontiers. 2021, 9, 789264. eISSN 2296-701X. Available under: doi: 10.3389/fevo.2021.789264
BibTex
@article{Poulsen2021-12-22Dista-56366,
  year={2021},
  doi={10.3389/fevo.2021.789264},
  title={Long Distance Seed Dispersal by Forest Elephants},
  volume={9},
  journal={Frontiers in Ecology and Evolution},
  author={Poulsen, John R. and Beirne, Christopher and Rundel, Colin and Baldino, Melissa and Kim, Seokmin and Knorr, Julia and Minich, Taylor and Jin, Lingrong and Nunez, Chase L. and Xiao, Shuyun},
  note={Article Number: 789264}
}
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