A5078277794- Cocoa and Sweet Potato Agronomy
- Agronomic Practices and Intercropping Systems
- Ecology and Vegetation Dynamics Studies
- Agroforestry and silvopastoral systems
- Soil Carbon and Nitrogen Dynamics
- Plant nutrient uptake and metabolism
- Legume Nitrogen Fixing Symbiosis
- Agricultural Innovations and Practices
- Conservation, Biodiversity, and Resource Management
- Coffee research and impacts
- Plant and animal studies
- African Botany and Ecology Studies
- Seedling growth and survival studies
- Banana Cultivation and Research
- Land Use and Ecosystem Services
- Agriculture and Rural Development Research
- Agriculture, Land Use, Rural Development
- Plant Water Relations and Carbon Dynamics
- Soil erosion and sediment transport
- Organic Food and Agriculture
- Tree Root and Stability Studies
- Forest ecology and management
- Cooperative Studies and Economics
- Forest Insect Ecology and Management
- Microfinance and Financial Inclusion
The Scarborough Hospital
2016-2025
University of Toronto
2016-2025
Ecologie fonctionnelle & biogéochimie des sols & des agro-systèmes
2010-2012
Centre de Coopération Internationale en Recherche Agronomique pour le Développement
2011
Institut de Recherche pour le Développement
2011
Université Joseph Ki-Zerbo
2010
United Nations Research Institute for Social Development
2007
Princeton University
2007
University of Guelph
2005
Abstract Motivation Trait data are fundamental to the quantitative description of plant form and function. Although root traits capture key dimensions related responses changing environmental conditions effects on ecosystem processes, they have rarely been included in large‐scale comparative studies global models. For instance, remain absent from nearly all that define spectrum Thus, overcome conceptual methodological roadblocks preventing a widespread integration trait into analyses we...
Agricultural simplification continues to expand at the expense of more diverse forms agriculture. This simplification, for example, in form intensively managed monocultures, poses a risk keeping world within safe and just Earth system boundaries. Here, we estimated how agricultural diversification simultaneously affects social environmental outcomes. Drawing from 24 studies 11 countries across 2655 farms, show five strategies focusing on livestock, crops, soils, noncrop plantings, water...
Isaac, M. E., B. H. Erickson, S. Quashie-Sam, and V. R. Timmer. 2007. Transfer of knowledge on agroforestry management practices: the structure farmer advice networks. Ecology Society 12(2): 32. https://doi.org/10.5751/ES-02196-120232
Summary Functional trait‐based ecological research has been instrumental in advancing our understanding of natural plant community dynamics. However, to date, principles functional trait ecology have not widely applied agricultural and management. Here, we discuss why how a approach – distinct from traditional agronomic that focuses strictly on crop yield components can provide valuable framework for research. We illustrate these points with an emphasis commodity crops. The literature...
Summary Understanding species differences in plant functional traits has been critical developing a mechanistic understanding of terrestrial ecological processes. Greater attention is now being placed on the extent, causes and consequences intraspecific trait variation ( ITV ). especially important governing processes cropping systems, where only small number or genotypes exist high abundances. However, it remains unclear if key principles trait‐based ecology – namely leaf economics spectrum...
Abstract Although invasive plants increasingly contribute to the current biodiversity crisis, mechanisms through which they impact native communities are still poorly understood. Community ecology theory has emphasized direct competitive displacement over common resources, but invasion‐driven ecosystem modifications, such as altered soil pH, might also have consequences for plant diversity. However, relative importance of modification compared resource competition rarely been tested. Here we...
Farming systems that support locally diverse agricultural production and high levels of biodiversity are in rapid decline, despite evidence their benefits for climate, environmental health, food security. Yet, policies, financial incentives, market concentration increasingly constrain the viability diversified farming systems. Here, we present a conceptual framework to identify novel processes promote emergence sustainability systems, using three real-world examples where communities have...
Hypotheses on the existence of a universal "Root Economics Spectrum" (RES) have received arguably least attention all trait spectra, despite key role root variation plays in resource acquisition potential. There is growing interest quantifying intraspecific (ITV) plants, but there are few studies evaluating (i) an RES within plant species, or (ii) how may be coordinated with other spectra such as leaf economics spectrum (LES). Using Coffea arabica (Rubiaceae) model we measured seven...
Abstract Plant invasions have consistently been shown to cause significant reductions in the diversity of recipient plant communities; an effect that can cascade through ecosystems impact stocks and flows nutrients energy as well higher trophic levels. However, manner which invasive plants alter ecosystem functioning interactions is highly variable occur direct effects invader's abundance its indirect via changes community diversity. Understanding nature these between invasion, provide...
The inclusion of shade trees into cocoa (Theobroma cacao L.) systems can generate livelihood opportunities for smallholder farmers. Yet, there is the need to examine ecological context within which trees, and their functional traits, have a positive impact on ecosystem services in systems. Here, we used network farms similar aged hybrid cocoa, nested design consisting agroforestry or monoculture management, three initial soil quality levels (poor, moderate good) two agroecological zones...
Social ties play an important role in agricultural knowledge exchange, particularly developing countries with high exposure to agriculture development interventions. Institutions often facilitate training projects, a focus on agroecological practices, such as agroforestry and agrobiodiversity. The structural characteristics of social networks amongst land managers influences decision-making adopt adaptive agroecoloigcal practice; however, the extent transfer beyond direct project...
Agricultural expansion and intensification are contributing to the world's most pressing environmental issues including global climatic change, widespread depletion contamination of soil water resources, major disruptions in Earth's biogeochemical cycles rates species extinctions that conspicuous on geological time-scales (Burney, Davis, & Lobell, 2010; Foley et al., 2005, 2011; Vitousek 1997). Additionally, dominant models agricultural production—largely envisioned as intensively managed...