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Evolutionary distance explains shade tree selection in agroforestry systems

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Title Evolutionary distance explains shade tree selection in agroforestry systems
 
Creator Sauvadet, M.
Asare, R.
Isaac, M.E.
 
Subject agrobiodiversity
agroecosystems
farmers
decision making
indigenous knowledge
phylogeny
theobroma cacao
ecology
 
Description Enhancing agrobiodiversity offers a suite of functions key to the sustainability of low input agroecosystems. The pairing of shade trees in pan-tropical tree-crop systems represents one of the most common and widespread applications of agroecosystem diversification, yet given the vastly heterogeneous conditions in which shade tree selection is made, generalizable advances in the identification of suitably paired tree-crop and shade tree is essential for performance and adoption. Here, we determine the phylogenetic distance between 78 reported shade tree genera and the dominant tree-crop, Theobroma cacao L (cocoa), across four countries in sub-Sahara Africa. We hypothesize that shade trees classified as desirable will be phylogenetically distant from T. cacao, based on the well-established theory that disparate evolutionary histories confer niche differentiation. Our analyses confirm that shade tree taxa categorized as desirable by farmers and institutions present higher phylogenetic distance with T. cacao than shade trees taxa categorized as undesirable. These results demonstrate that shade tree evolutionary distance to the target crop could be a useful tool to predict a taxon’s a priori suitability in cocoa agroforests, as well as the ability of phylogenetic analyses in prescribing appropriate shade trees in other current and future agroforestry systems.
 
Date 2020-12
2022-01-24T09:16:42Z
2022-01-24T09:16:42Z
 
Type Journal Article
 
Identifier Evolutionary distance explains shade tree selection in agroforestry systems. Agriculture, Ecosystems & Environment, 304: 107125, 1-4.
0167-8809
https://hdl.handle.net/10568/117709
https://doi.org/10.1016/j.agee.2020.107125
NATURAL RESOURCE MANAGEMENT
 
Language en
 
Rights Copyrighted; all rights reserved
Limited Access
 
Format 1-4
 
Publisher Elsevier BV
 
Source Agriculture, Ecosystems and Environment