Giraffe productivity and calf survival in a savannah area outside an east African protected area: Implications for conservation

Author:

Becker C. Dustin1ORCID,Campbell Petra Elisabeth2,Kadane Leslie Ann3,Nagut Reuben Kilutori4,Kinata David Limpaso5,Stevens Henry C.6

Affiliation:

1. Life Net Nature Havana Florida USA

2. Private Biological Consultant Hannover Germany

3. Primate Global Foundation Seattle Washington USA

4. Maasai Moran Conservation and Walking Safaris Narok Kenya

5. Maasai Mara Wildlife Conservancies Association Narok Kenya

6. Department of Biology Georgetown University Washington District of Columbia USA

Abstract

AbstractProtection of nursery areas where newborn survival is successful is critical to recovery of endangered mammals. In Kenya, 2014 to 2022, we surveyed Endangered Masai giraffes (Giraffa camelopardalis tippelskirchi) on the Siria Plateau at Oloirien Group Ranch (OGR) and Oloisukut Conservancy (OC), and in the Rift Valley's Mara Triangle Conservancy (MTC). MTC and OC have high lion densities while OGR does not. Using counts and photographic mark‐recapture (PMR), we estimated percentages of newborn (<3 months) and juvenile giraffe calves (<1 year) per adult female and per total giraffes sampled. Cormack‐Jolly‐Seber models were used to estimate annual survival of giraffes at OGR. The mean percentage of newborn calves: adult female at OGR (~18%) was significantly higher than at OC (3.3%) and MTC (0%). The mean juvenile: adult female percentage at the Siria Plateau sites was 62 ± 12.8% versus 12% in MTC. Total juvenile calves averaged 22% on the plateau, four times higher than MTC (5.3%). At OGR, giraffe survival for all ages and sexes was 0.86, higher than protected areas with lions. Only one female giraffe in 229 used both plateau sites, suggesting independent matrilines. Human‐populated savannah next to reserves contributes to giraffe recovery, but nursery areas like OGR need robust protection.

Publisher

Wiley

Reference49 articles.

1. Habitat-performance relationships of a large mammal on a predator-free island dominated by humans

2. Becker C. D.(2017).Encouraging wildlife conservation by Maasai youth in Kenya. Life Net Nature Technical Report 2017‐2https://doi.org/10.13140/RG.2.2.30436.27524

3. Becker C. D.(2021).Giraffe monitoring and wildlife conservation with Maasai in Kenya – 2021 field report. Life Net Nature Technical Report 2021‐21013140/RG.2.2.10513.56168.

4. Becker C. D. Naiyainoi D. Nagut R. &McKay K.(2023).Farewell to a Maasai commons in western Kenya: Drivers and consequences for people and wildlife. Panel Discussion 9.16. Conservation Environmental Justice and the Commons. XV11 Conference of the International Association for the Study of Common Property Conference. University of Nairobi. Kenyahttps://doi.org/10.13140/RG.2.2.18412.54407

5. Fear, human shields and the redistribution of prey and predators in protected areas

同舟云学术

1.学者识别学者识别

2.学术分析学术分析

3.人才评估人才评估

"同舟云学术"是以全球学者为主线,采集、加工和组织学术论文而形成的新型学术文献查询和分析系统,可以对全球学者进行文献检索和人才价值评估。用户可以通过关注某些学科领域的顶尖人物而持续追踪该领域的学科进展和研究前沿。经过近期的数据扩容,当前同舟云学术共收录了国内外主流学术期刊6万余种,收集的期刊论文及会议论文总量共计约1.5亿篇,并以每天添加12000余篇中外论文的速度递增。我们也可以为用户提供个性化、定制化的学者数据。欢迎来电咨询!咨询电话:010-8811{复制后删除}0370

www.globalauthorid.com

TOP

Copyright © 2019-2024 北京同舟云网络信息技术有限公司
京公网安备11010802033243号  京ICP备18003416号-3