Ciska P. J. Scheijen

ORCID: 0000-0003-0938-8235
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About
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Research Areas
  • Wildlife Ecology and Conservation
  • Animal Behavior and Reproduction
  • Animal Behavior and Welfare Studies
  • Rangeland Management and Livestock Ecology
  • Wildlife-Road Interactions and Conservation
  • Rangeland and Wildlife Management
  • Primate Behavior and Ecology
  • Pesticide Exposure and Toxicity
  • Ecology and biodiversity studies
  • Genetic diversity and population structure
  • Animal Ecology and Behavior Studies
  • Animal Vocal Communication and Behavior
  • Species Distribution and Climate Change
  • Reproductive Physiology in Livestock

University of the Free State
2019-2021

Van Hall Larenstein University of Applied Sciences
2014-2018

Humans and human infrastructure are known to alter the relationship between predators prey, typically by directly or indirectly shielding one of species from other. In addition these overt changes animals' behavior, observers may have more subtle impacts on foraging decisions. However, anthropogenic alteration risk-taking behavior has rarely been acknowledged quantified, particularly in behavioral ecological studies reliant habituated animals. We tested magnitude "human shield effect"...

10.1093/beheco/aru110 article EN Behavioral Ecology 2014-01-01

Abstract Non-lethal mitigation of crop use by elephants Loxodonta africana is an increasingly important part protected area management across Africa and Asia. Recently, beehive fences have been suggested as a potential strategy. We tested the effectiveness this method in farming community adjacent to Udzungwa Mountains National Park southern Tanzania. Over 5.5-year period (2010–2016) fence was introduced subsequently extended along boundary. The probability that one or more farms experienced...

10.1017/s0030605317001727 article EN Oryx 2018-05-21

Giraffes are an important tourist attraction, and human presence to wildlife is increasing. This has impact on animal’s behavior its endocrine correlates. Studies other species show alterations in movement patterns, vigilance, stress-related hormone levels the of humans. Limited information available how anthropogenic activities alter giraffe’s behavior, social structure, related parameters. The purpose this study was obtain insight into influences adrenal activity. We used GPS devices...

10.3390/ani11051239 article EN cc-by Animals 2021-04-25

ABSTRACT Most populations of giraffes have declined in recent decades, leading to the decision upgrade species vulnerable status, and some subspecies endangered. Translocations been used as a conservation tool re-introduce previously occupied areas or establish new populations, but guidelines for founding are lacking. To provide general translocation projects regarding feasibility, we simulated various scenarios translocated giraffe identify viable age sex distributions using Population...

10.1101/619114 preprint EN cc-by-nc-nd bioRxiv (Cold Spring Harbor Laboratory) 2019-04-30

I declare there is no conflict of interest. This article does not contain data.

10.1111/aje.12785 article EN African Journal of Ecology 2020-09-08

<p>Human presence to wildlife is increasing, this has an impact on animal’s behavior and endocrinology. This work presents a first insight in the effect of human observers stress hormones free-roaming giraffes as well their habituation process. </p> <p>Our data shows that may have influence social structure reproductive fitness species. More research needed compare different sites anthropogenic influences.

10.38140/ufs.14221889.v1 preprint EN cc-by 2021-03-16

<p>Human presence to wildlife is increasing, this has an impact on animal’s behavior and endocrinology. This work presents a first insight in the effect of human observers stress hormones free-roaming giraffes as well their habituation process. </p> <p>Our data shows that may have influence social structure reproductive fitness species. More research needed compare different sites anthropogenic influences.

10.38140/ufs.14221889 preprint EN cc-by 2021-03-16
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