Predicting the impacts of human population growth on forest mammals in the highlands of southwestern Ethiopia
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Predicting the impacts of human population growth on forest mammals in the highlands of southwestern Ethiopia. / Rodrigues, Patrícia; Dorresteijn, Ine; Guilherme, João L. et al.
In: Biological Conservation, Vol. 256, 109046, 01.04.2021.Research output: Journal contributions › Journal articles › Research › peer-review
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TY - JOUR
T1 - Predicting the impacts of human population growth on forest mammals in the highlands of southwestern Ethiopia
AU - Rodrigues, Patrícia
AU - Dorresteijn, Ine
AU - Guilherme, João L.
AU - Hanspach, Jan
AU - De Beenhouwer, Matthias
AU - Hylander, Kristoffer
AU - Bekele, Birhanu
AU - Senbeta, Feyera
AU - Fischer, Joern
AU - Nimmo, Dale
N1 - Publisher Copyright: © 2021 Elsevier Ltd
PY - 2021/4/1
Y1 - 2021/4/1
N2 - Projections of human population growth for 2050 indicate that Africa is expected to steadily increase its rural population, raising questions on how to best accommodate people while minimizing impacts on biodiversity. We explored the outcomes of scenarios of rural population growth mediated by housing development. We designed our scenarios based on (i) patterns of housing development (i.e., housing densification versus expansion), (ii) level of human population growth, and (iii) forest protection. Using camera traps, we surveyed mammals in the moist Afromontane forests of southwestern Ethiopia. We modelled mammals' responses to current and alternative housing development trajectories, using generalized additive mixed models. Our results suggest that (i) rural population growth is likely to negatively influence several mammal species, including a threatened predator (the leopard) as well as common crop raiding species such as baboons; (ii) negative impacts of population growth are likely to be exacerbated if new housing encroaches the forest (i.e., expansion), and likely to be less detrimental if houses are built within the existing human footprint (i.e., densification); and (iii) effects of human population growth can be modified by land-use decisions unrelated to biodiversity conservation, such as protection of economically important forest cover (native coffee forest in our study area). The location, extent and magnitude of housing development in southwestern Ethiopia can limit the ability of several mammal species to persist in the landscape. Our findings suggest that incorporating the ecological effects of housing development into landscape planning is fundamental to align conservation goals with development plans.
AB - Projections of human population growth for 2050 indicate that Africa is expected to steadily increase its rural population, raising questions on how to best accommodate people while minimizing impacts on biodiversity. We explored the outcomes of scenarios of rural population growth mediated by housing development. We designed our scenarios based on (i) patterns of housing development (i.e., housing densification versus expansion), (ii) level of human population growth, and (iii) forest protection. Using camera traps, we surveyed mammals in the moist Afromontane forests of southwestern Ethiopia. We modelled mammals' responses to current and alternative housing development trajectories, using generalized additive mixed models. Our results suggest that (i) rural population growth is likely to negatively influence several mammal species, including a threatened predator (the leopard) as well as common crop raiding species such as baboons; (ii) negative impacts of population growth are likely to be exacerbated if new housing encroaches the forest (i.e., expansion), and likely to be less detrimental if houses are built within the existing human footprint (i.e., densification); and (iii) effects of human population growth can be modified by land-use decisions unrelated to biodiversity conservation, such as protection of economically important forest cover (native coffee forest in our study area). The location, extent and magnitude of housing development in southwestern Ethiopia can limit the ability of several mammal species to persist in the landscape. Our findings suggest that incorporating the ecological effects of housing development into landscape planning is fundamental to align conservation goals with development plans.
KW - Biodiversity conservation
KW - Coffee forests
KW - Housing density
KW - Rural growth
KW - Scenarios
KW - Environmental planning
KW - Biology
KW - Ecosystems Research
UR - http://www.scopus.com/inward/record.url?scp=85101956014&partnerID=8YFLogxK
U2 - 10.1016/j.biocon.2021.109046
DO - 10.1016/j.biocon.2021.109046
M3 - Journal articles
AN - SCOPUS:85101956014
VL - 256
JO - Biological Conservation
JF - Biological Conservation
SN - 0006-3207
M1 - 109046
ER -