About the Authors

Festus W. Ihwagi

f.w.ihwagi@utwente.nl

Affiliations Department of Natural Resources, Faculty of Geo-Information Science and Earth Observation (ITC), University of Twente, P.O. Box 217, 7500 AE, Enschede, The Netherlands, Save the Elephants, P.O. Box 54667–00200, Nairobi, Kenya

Tiejun Wang

Affiliation Department of Natural Resources, Faculty of Geo-Information Science and Earth Observation (ITC), University of Twente, P.O. Box 217, 7500 AE, Enschede, The Netherlands

George Wittemyer

Affiliations Save the Elephants, P.O. Box 54667–00200, Nairobi, Kenya, Graduate Degree Program in Ecology, Colorado State University, Ft. Collins, Colorado, 80523–1474, United States of America

Andrew K. Skidmore

Affiliation Department of Natural Resources, Faculty of Geo-Information Science and Earth Observation (ITC), University of Twente, P.O. Box 217, 7500 AE, Enschede, The Netherlands

Albertus G. Toxopeus

Affiliation Department of Natural Resources, Faculty of Geo-Information Science and Earth Observation (ITC), University of Twente, P.O. Box 217, 7500 AE, Enschede, The Netherlands

Shadrack Ngene

Affiliation Kenya Wildlife Service, P.O. Box 40241–00100, Nairobi, Kenya

Juliet King

Affiliation Northern Rangelands Trust, Private Bag—60300, Isiolo, Kenya

Jeffrey Worden

Affiliation Northern Rangelands Trust, Private Bag—60300, Isiolo, Kenya

Patrick Omondi

Affiliation Kenya Wildlife Service, P.O. Box 40241–00100, Nairobi, Kenya

Iain Douglas-Hamilton

Affiliation Save the Elephants, P.O. Box 54667–00200, Nairobi, Kenya

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: FI TW GW AS AT ID. Performed the experiments: FI GW JK SN PO ID. Analyzed the data: FI TW. Contributed reagents/materials/analysis tools: FI TW GW AS AT JK SN JW PO ID. Wrote the paper: FI TW AS AT SN JW GW.