Spatial variation in human disturbances and their effects on forest structure and biodiversity across an Afromontane forest

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Spatial variation in human disturbances and their effects on forest structure and biodiversity across an Afromontane forest. / Beche, Dinkissa; Tack, Ayco; Nemomissa, Sileshi et al.
In: Landscape Ecology, Vol. 37, No. 2, 01.02.2022, p. 493-510.

Research output: Journal contributionsJournal articlesResearchpeer-review

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Beche D, Tack A, Nemomissa S, Warkineh B, Lemessa D, Rodrigues P et al. Spatial variation in human disturbances and their effects on forest structure and biodiversity across an Afromontane forest. Landscape Ecology. 2022 Feb 1;37(2):493-510. doi: 10.1007/s10980-021-01395-4

Bibtex

@article{3914d6d5557842f38992f399d4f4dc91,
title = "Spatial variation in human disturbances and their effects on forest structure and biodiversity across an Afromontane forest",
abstract = "Context: Human disturbances can have large impacts on forest structure and biodiversity, and thereby result in forest degradation, a property difficult to detect by remote sensing. Objectives: To investigate spatial variation in anthropogenic disturbances and their effects on forest structure and biodiversity. Methods: In 144 plots of 20 × 20 m distributed across a forest area of 750 km2 in Southwest Ethiopia, we recorded: landscape variables (e.g., distance to forest edge), different human disturbances, forest structure variables, and species composition of trees and epiphyllous bryophytes. We then first assessed if landscape variables could explain the spatial distribution of disturbances. Second, we analysed how forest structure and biodiversity were influenced by disturbances. Results: Human disturbances, such as coffee management and grazing declined with distance to forest edges, and penetrated at least a kilometer into the forest. Slope was not related to disturbance levels, but several types of disturbances were less common at higher elevations. Among human disturbance types, coffee management reduced liana cover and was associated with altered species composition of trees. The presence of large trees and basal area were not related to any of the disturbance gradients. Conclusions: Although most anthropogenic disturbances displayed clear edge effects, surprisingly the variation in the chosen forest degradation indices were only weakly related to these disturbances. We suggest that the intersection between edge effects and forest degradation is very context specific and relies much on how particular societies use the forests. For example, in this landscape coffee management seems to be a key driver.",
keywords = "Coffea arabica, Coffee management, Edge effects, Epiphyllous bryophytes, Forest degradation, Human-inhabited landscapes, Liana, Trees, Environmental planning",
author = "Dinkissa Beche and Ayco Tack and Sileshi Nemomissa and Bikila Warkineh and Debissa Lemessa and Patricia Rodrigues and Joern Fischer and Kristoffer Hylander",
note = "Publisher Copyright: {\textcopyright} 2022, The Author(s), under exclusive licence to Springer Nature B.V.",
year = "2022",
month = feb,
day = "1",
doi = "10.1007/s10980-021-01395-4",
language = "English",
volume = "37",
pages = "493--510",
journal = "Landscape Ecology",
issn = "0921-2973",
publisher = "Springer Science and Business Media B.V.",
number = "2",

}

RIS

TY - JOUR

T1 - Spatial variation in human disturbances and their effects on forest structure and biodiversity across an Afromontane forest

AU - Beche, Dinkissa

AU - Tack, Ayco

AU - Nemomissa, Sileshi

AU - Warkineh, Bikila

AU - Lemessa, Debissa

AU - Rodrigues, Patricia

AU - Fischer, Joern

AU - Hylander, Kristoffer

N1 - Publisher Copyright: © 2022, The Author(s), under exclusive licence to Springer Nature B.V.

PY - 2022/2/1

Y1 - 2022/2/1

N2 - Context: Human disturbances can have large impacts on forest structure and biodiversity, and thereby result in forest degradation, a property difficult to detect by remote sensing. Objectives: To investigate spatial variation in anthropogenic disturbances and their effects on forest structure and biodiversity. Methods: In 144 plots of 20 × 20 m distributed across a forest area of 750 km2 in Southwest Ethiopia, we recorded: landscape variables (e.g., distance to forest edge), different human disturbances, forest structure variables, and species composition of trees and epiphyllous bryophytes. We then first assessed if landscape variables could explain the spatial distribution of disturbances. Second, we analysed how forest structure and biodiversity were influenced by disturbances. Results: Human disturbances, such as coffee management and grazing declined with distance to forest edges, and penetrated at least a kilometer into the forest. Slope was not related to disturbance levels, but several types of disturbances were less common at higher elevations. Among human disturbance types, coffee management reduced liana cover and was associated with altered species composition of trees. The presence of large trees and basal area were not related to any of the disturbance gradients. Conclusions: Although most anthropogenic disturbances displayed clear edge effects, surprisingly the variation in the chosen forest degradation indices were only weakly related to these disturbances. We suggest that the intersection between edge effects and forest degradation is very context specific and relies much on how particular societies use the forests. For example, in this landscape coffee management seems to be a key driver.

AB - Context: Human disturbances can have large impacts on forest structure and biodiversity, and thereby result in forest degradation, a property difficult to detect by remote sensing. Objectives: To investigate spatial variation in anthropogenic disturbances and their effects on forest structure and biodiversity. Methods: In 144 plots of 20 × 20 m distributed across a forest area of 750 km2 in Southwest Ethiopia, we recorded: landscape variables (e.g., distance to forest edge), different human disturbances, forest structure variables, and species composition of trees and epiphyllous bryophytes. We then first assessed if landscape variables could explain the spatial distribution of disturbances. Second, we analysed how forest structure and biodiversity were influenced by disturbances. Results: Human disturbances, such as coffee management and grazing declined with distance to forest edges, and penetrated at least a kilometer into the forest. Slope was not related to disturbance levels, but several types of disturbances were less common at higher elevations. Among human disturbance types, coffee management reduced liana cover and was associated with altered species composition of trees. The presence of large trees and basal area were not related to any of the disturbance gradients. Conclusions: Although most anthropogenic disturbances displayed clear edge effects, surprisingly the variation in the chosen forest degradation indices were only weakly related to these disturbances. We suggest that the intersection between edge effects and forest degradation is very context specific and relies much on how particular societies use the forests. For example, in this landscape coffee management seems to be a key driver.

KW - Coffea arabica

KW - Coffee management

KW - Edge effects

KW - Epiphyllous bryophytes

KW - Forest degradation

KW - Human-inhabited landscapes

KW - Liana

KW - Trees

KW - Environmental planning

UR - http://www.scopus.com/inward/record.url?scp=85122308510&partnerID=8YFLogxK

UR - https://www.mendeley.com/catalogue/2dee4996-72d9-3abd-967a-50fd9b53c0d4/

U2 - 10.1007/s10980-021-01395-4

DO - 10.1007/s10980-021-01395-4

M3 - Journal articles

AN - SCOPUS:85122308510

VL - 37

SP - 493

EP - 510

JO - Landscape Ecology

JF - Landscape Ecology

SN - 0921-2973

IS - 2

ER -

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