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Top-down and bottom...
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Ramirez, J. IgnacioUmeå universitet,Institutionen för ekologi, miljö och geovetenskap
(author)
Top-down and bottom-up forces explain patch utilization by two deer species and forest recruitment
- Article/chapterEnglish2023
Publisher, publication year, extent ...
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2022-11-24
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Springer,2023
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electronicrdacarrier
Numbers
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LIBRIS-ID:oai:DiVA.org:umu-201428
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https://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-201428URI
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https://doi.org/10.1007/s00442-022-05292-8DOI
Supplementary language notes
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Language:English
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Summary in:English
Part of subdatabase
Classification
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Subject category:ref swepub-contenttype
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Subject category:art swepub-publicationtype
Notes
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Ungulates play an important role in temperate systems. Through their feeding behaviour, they can respond to vegetation by selecting patches or modify vegetation composition by herbivory. The degree in which they interact with vegetation can either reinforce landscape heterogeneity by creating disturbance or reduce heterogeneity in case of overbrowsing. This study evaluates how bottom-up (patch quality, structure), top-down forces (hunting, distance to village, forest edge) and deer features (feeding type, abundance) mediate patch utilization in a temperate forest and assess the implications of patch utilization and light on forest recruitment. Theory predicts that animals seek to maximize their energetic gains by food intake while minimizing the costs associated to foraging, such as the energy required for avoiding predators and exploiting resources. We focused on two deer species with contrasting feeding type: a browser (C. capreolus) and a mixed feeder (C. elaphus). We paired camera traps to vegetation sub-plots in ten forest sites in the Netherlands that widely ranged in deer abundance and landscape heterogeneity. Results showed that patch utilization is simultaneously explained by bottom-up, top-down forces and by deer abundance, as predicted by the safety-in-numbers hypothesis. Yet, forces best explaining patch utilization differed between deer species. Overall, higher patch utilization came with higher browsing, lower tree diversity and a large difference in forest composition: from a mix of broadleaves and conifers towards only conifers. We conclude that these two deer species, although living in the same area and belonging to the same guild, differentially perceive, interact with and shape their surrounding landscape.
Subject headings and genre
Added entries (persons, corporate bodies, meetings, titles ...)
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Poorter, LourensForest Ecology and Forest Management Group, Wageningen University and Research, Wageningen, Netherlands
(author)
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Jansen, Patrick A.Wildlife Ecology and Conservation Group, Wageningen University and Research, Wageningen, Netherlands; Smithsonian Tropical Research Institute, Balboa, Ancon, Panama
(author)
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den Ouden, JanForest Ecology and Forest Management Group, Wageningen University and Research, Wageningen, Netherlands
(author)
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Siewert, Matthias B.,1985-Umeå universitet,Institutionen för ekologi, miljö och geovetenskap(Swepub:umu)masi0110
(author)
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Olofsson, JohanUmeå universitet,Institutionen för ekologi, miljö och geovetenskap(Swepub:umu)jool0004
(author)
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Umeå universitetInstitutionen för ekologi, miljö och geovetenskap
(creator_code:org_t)
Related titles
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In:Oecologia: Springer201:1, s. 229-2400029-85491432-1939
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