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Recreation and hunting differentially affect deer behaviour and sapling performance

Mols, Bjorn and Lambers, Evert and Cromsigt, Joris and Kuijper, Dries P. J. and Smit, Christian (2022). Recreation and hunting differentially affect deer behaviour and sapling performance. Oikos :1
[Research article]

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Abstract

Humans are increasingly acknowledged as apex predators that shape landscapes of fear to which herbivores adapt their behaviour. Here, we investigate how humans modify deer space-use and their effects on vegetation at two spatial scales; zones with different types of human use (largescale risk factor) and, nested within that, trails (fine-scale risk factor). In zones with three contrasting types of human activities: 1) no recreation, no hunting, 2) with recreation, no hunting and 3) with recreation and hunting, we linked deer space-use (dropping counts) to browsing intensity, relative growth and survival of planted saplings. Plots were located at two distances to trails (20 versus 100 m) to test how trails affect deer space-use and sapling performance. Additionally, plots were distributed over forest and heathland as risk effects are habitat-dependent. Deer space-use was highest in the zone without recreation or hunting, resulting in higher browsing levels and lower sapling growth and survival, but only in heathland. In contrast, deer space-use and sapling performance did not differ between zones with recreation only and zones with recreation and hunting. Deer dropping counts were lower near trails used for recreation, but this was not associated with browsing impact or sapling performance. Our results show that recreational use modifies deer space-use which is associated with browsing impact on woody vegetation, while seasonal hunting activities in zones with recreation did not have additive year-round effects. Yet, effects were only observed at the larger scale of recreation zones and not near trails. Furthermore, deer space-use was only associated with sapling performance in open heathland, where high visibility presumably increases avoidance behaviour because it increases detectability and decreases escape possibilities. This suggests that recreation creates behaviourally mediated cascading effects that influence vegetation development, yet these effects are context-dependent. We advocate incorporating human-induced fear effects in conservation, management and research.

Authors/Creators:Mols, Bjorn and Lambers, Evert and Cromsigt, Joris and Kuijper, Dries P. J. and Smit, Christian
Title:Recreation and hunting differentially affect deer behaviour and sapling performance
Series Name/Journal:Oikos
Year of publishing :2022
Number:1
Number of Pages:13
Publisher:WILEY
ISSN:0030-1299
Language:English
Publication Type:Research article
Article category:Scientific peer reviewed
Version:Published version
Copyright:Creative Commons: Attribution 4.0
Full Text Status:Public
Subjects:(A) Swedish standard research categories 2011 > 1 Natural sciences > 106 Biological Sciences (Medical to be 3 and Agricultural to be 4) > Ecology
Keywords:ecology of fear, human disturbance, hunting for fear, landscapes of fear, tree recruitment, ungulate browsing
URN:NBN:urn:nbn:se:slu:epsilon-p-114654
Permanent URL:
http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-p-114654
Additional ID:
Type of IDID
DOI10.1111/oik.08448
Web of Science (WoS)000725077800001
ID Code:27097
Faculty:S - Faculty of Forest Sciences
Department:(S) > Dept. of Wildlife, Fish and Environmental Studies
Deposited By: SLUpub Connector
Deposited On:14 Feb 2022 14:25
Metadata Last Modified:16 May 2022 20:33

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