i) provides a typology of terms, sometimes confusing, used in biodiversity work,
ii) introduce two new concepts (Service Providing Protocol and Ecosystem Dis-function) which are vital in understanding the function of the spiral pathway, and
iii) demonstrates the ideal pathway from understanding what biodiversity is, to harnessing its power to achieve a more sustainable agriculture.
We point out within the spiral, caveats and potential pitfalls (represented as a warning triangle) along the way which further emphasise the complexities involved in making a real difference to future global food security. Throughout this approach, we have selected key, recent references to enable the reader to access the scientific basis of each dot in the spiral.
Over the last 50 years, mankind has changed the natural dynamics of the planet at a rate that has never been seen before. Due to high fossil-fuel consumption and land use change, humanity faces “wicked” problems, such as climate change and biodiversity loss (Steffen 2010; Folke et al. 2011; Bellard et al. 2012; Cardinale et al. 2012; Steffen et al. 2015a). One activity that contributes significantly to these issues is modern conventional agriculture, which has simplified the agroecosystem to maximize short-term economic profit (Tilman 1999), while generating very large external costs to human health (Barański et al. 2014) and the environment (Tilman et al. 2001; Wratten et al. 2013; Tubiello et al. 2015; Turner et al. 2016). These global-scale problems have been highlighted in recent years by several authors, in prestigious scientific journals (e.g., Foley et al. 2011; Folke and Rockström 2011; Steffen et al. 2011, 2015b; Hooper et al. 2012). However, despite the advances of agro-ecological research and associated techniques worldwide (Koohafkan et al. 2011; Altieri et al. 2015; Gurr et al. 2016; Reganold and Wachter 2016), which have the potential to produce enough food for the growing human population without markedly damaging the environment (De Schutter 2010; Reganold and Wachter 2016), there is still largely a lack of implementation of this ecological knowledge in conventional agricultural systems, especially in under-developed countries (Reganold and Wachter 2016). Even in “western” agriculture, many attempts at enhancing functional biodiversity on farms have failed because they are not founded on sound science (Kleijn and Sutherland 2003) or the ecosystem services they generate are not recognized by governments at local or national levels (i.e., goals and policies for Paying for Ecosystem Services (PES) that have value within and beyond the farm have not commonly been applied (Farley and Costanza 2010; Sandhu et al. 2016). Confounding those challenges is the dominance of agrochemical companies with their intensive marketing practices, leading to the high frequency of prophylactic pesticide use, with its wide-ranging negative environmental and economic consequences. For example, recent work on rice pests in south-east Asia has shown that enhancing biological control leads to fewer pesticide applications and higher yields than under a prophylactic pesticide regime (Gurr et al. 2016).
Therefore, the aim of this pathway is to clarify a plethora of poor/overlapping definitions of the processes involved in delivering real agro-ecological outcomes, starting from the idea that appropriate management of biodiversity and the functions which it delivers can lead to more sustainable agriculture. We then demonstrate a framework, using a spiral device, that can be used in any region of the world to investigate, promote and apply ecologically-based techniques that enhance ecosystem services in agricultural landscapes, with positive outcomes for farmers and the society as a whole. The need is urgent.
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