While these changes have a positive effect on the ability of lower caste groups to attain resources and engage in dairy farming , it also shows that 48% of the HHs participating in this study had no livestock, and 6.8% kept livestock only temporarily in contrast to the past.This also suggests that those who cannot afford intensive livestock production tend to reduce their livestock rearing or to rear small ruminants as needed, thus indicating marginalization.In view of the above, it is necessary to re-assess current approaches in ongoing WDPs as intensification and specialization, do not necessarily result in higher economic performance, especially in biophysically constrained environments such as dryland areas.Our reason for emphasizing the biophysical aspect is that, despite the better standards of socio-economic and infrastructural conditions in Telangana , the lower economic performance in farming is still observed and across all farming systems.We therefore suggest considering alternative development strategies for HHs, such as “area-wide integration”, feed self-sufficiency, or farm diversification to triggering better economic results or enhance the viability of farms in the long term , particularly in environmentally constrained regions.Further, to manage the dynamics of intensification and specialization in farming systems , the institutional capacity-building at the village level in WPDs should be strengthened with new information and approaches.This is well demonstrated by some civil society organizations, using community engagement approaches and tools.Such approaches, combined with science-based evaluations of ongoing programs,flood tray could help avoid the implementation of conflictive technological development and create knowledge about complex social-ecological processes.
This approach could also facilitate an interactive learning space and promote local innovations by tapping local or traditional knowledge systems to improve the management of dryland environments.In all, we urge the need for interdisciplinary research to assess the relative feasibility of varied farming systems in dryland conditions, the socio-economic impact of agricultural intensification in dryland ecosystems e.g., indebtedness and access to credit, HH dietary diversity or gender implications.Also, we encourage the implementation of mechanisms that can facilitate continuous research on farming systems development and their economic and environmental performance.This will help to better anticipate farming systems trajectories and the potential effects of development strategies, also those within the WDP operational framework.Worldwide, agriculture is facing a double challenge of increasing productivity and developing more sustainable ways of food production.Small-scale farming practiced on relatively small plots of land is the most dominant form of agriculture, constituting more than 70% of the global food production entities.Family farmers with small landholdings represent about 80% of the world’s farms and account for 85% of global population involved in agriculture , mostly in low and middle-income countries , with strong strain on natural resources and pressing concern for food security ; and addressing multiple goals and targets contributing to achieve the Sustainable Development Goals.Although widely used, a unique and unambiguous definition of smallholder farming still remains to be established.It currently relies on several criteria, mostly related to land endowment , labor productivity and income.The definition of smallholding is however context-dependent and can vary according to socio-economic, technological and agroecological realities.
SHF systems are highly diverse in terms of climatic, ecological and socioeconomic conditions as well as in their structure and functioning.Still, these agroecosystems share certain properties like high levels of biodiversity and complex landscape composition , key role of family-managed farms in supporting local livelihoods , management methods tightly related to rich local knowledge system or shared cultural values in common social organization and strong adaptability to changes, sometimes in high risk environments.These agrosystems are also a leading representation of human-nature interactions and feed backs, encompassing material and non-material benefits for humans as well as threats or unfavorable outputs.As for other ecosystems, long-standing interactions within SHF and their ecological functions provide direct and indirect fundamental benefits to humans, through supporting, cultural, provisioning and regulating ecosystem services , 2005.Because of the strong interconnected natural and agricultural features in SHF, unsustainable practices may undermine ES on which smallholders depend to meet urgent needs in contexts of great vulnerability and weak institutional support.Food production on SHF is strongly linked to biodiversity-derived services as increasing the levels of artificial inputs is not economically viable for resource-constrained households.Therefore, options to maintain or improve production are rather linked with improvement of the amount and integrity of ecosystem regulation and supporting services , 2013.Food production, especially in SHF, depends on a wide range of ecosystem functions including nutrient and water cycling, pollination, competitive interactions, and matter decomposition.These functions are fulfilled by several agrobiodiversity components, particularly arthropods.
To date, research on arthropodrelated ES has mainly focused on well-known functions and performed by charismatic or iconic groups such as butterflies, hymenoptera or beetles , even though a large part of global crop production depends on pollination from bees and wild pollinators.Pollination also contributes to economic welfare and to rich and meaningful cultural and spiritual life for a large population.Along with pollination, biological control is one of the most studied services as it implies high economic impacts for agriculture because parasitoids and predatory arthropods contribute to controlling pest insects in crops.In contrast to ES, ecosystem disservices are defined as ecological elements, functions and processes affecting negatively human well-being, directly , by intermediate of negative impacts on ES or by reinforcing other EDS.EDS scope on ecological phenomenon linked to negative outcomes affecting human well-being, which must be differenciated from the associated detriments or costs resulting from human actions on ecosystems.In agricultural systems, EDS affect functions and productivity, leading to important crop losses.These disservices such as herbivory or competition for resources have also been extensively studied, establishing a dominant viewpoint where insects are predominantly perceived as crops pest and harmful to anthropogenic environments.Nevertheless, as stakeholders’ actions may be largely driven by greater perception and willingness to reduce EDS , arthropod management for either mitigating EDS or enhancing ES can also be a powerful driver for transition towards sustainable agriculture in smallholder systems.In particular, promising results on agroecosystem management towards more sustainable agriculture have been reported when including ES-EDS synergies and trade-offs.To date published evidence on the relationships between arthropod related ES and the sustainability of agricultural practices has been largely based in research from high-income countries and temperate regions.
Moreover, a combined analysis of services and disservices of arthropods in SHF systems has still to be performed for balancing positive and negative impacts of nature on human well-being and for reframing entomological research to achieve the SDGs.To address this issue, we performed a literature review capturing research trends in insect-related ES and EDS in SHF, detecting knowledge gaps and exploring to what extent these studies are conducted within a transdisciplinary framework.In particular, we were interested in research practices in SHF considering ES and EDS in a multidimensional view of agroecosystems and bringing together diverse knowledge systems, especially between academic and farmer communities.We conducted a systematic multilingual review of the scientific literature in peer-reviewed journal articles published between January 2015 and January 2021.We followed the systematic literature review approach and the six steps protocol commonly used for scientific review.Detailed steps of the process are described in Appendix A.We first determined the research scope with the PICOC framework.We identified concept groups for keywords from the terminology identified in PICOC and then ran a ‘naïve search’ for identifying search terms through an automated approach using the litsearchr R package version 1.0.0.Then identified terms in the three languages were searched in different databases covering a broad range of academic contexts: Web of Science , Scopus , BASE , and Scielo.The search string was a compilation of keywords of four main domains: Arthropods, Agriculture, Ecosystem services and disservices,ebb and flow tray and Smallholder farming.Keywords were searched in aggregated quests, progressively filtering articles, thereby giving us an idea of the shared publications of each sub-theme in the overall literature on arthropods.Overall, we retrieved 454,703 records on arthropods, of which 40,720 were related to agriculture.Among them 14,967 articles were related to ES or EDS, of which 1564 concerned SHF.As diversified international databases and collection of published scientific research help cover citations more widely , especially for countries in L&MIC, we included bibliographic resources from other scientific search engines, scientific libraries and scholarly journals platforms as Dialnet, PKP Index and AJOL , using the four main keywords groups repeatedly in the search process.Finally, we conducted a complementary approach of citation tracking by backward snowballing using articles’ reference lists.We retrieved 57 additional references, leading to a total of 1621 articles.All references were compiled into a unique bibliographic database organized and arrayed to eliminate duplicates and misreferenced entries using the revtools v.0.4.1 and synthesisr v.0.3.0 R packages.Article titles and abstracts in the resulting database were subsequently screened to complete inclusion-exclusion procedure according to predefined criteria.
We excluded publications whose focus was not relevant to SHF systems or for which insect sampling was not done under real world conditions.This also implied excluding studies about intensive and high-input farming systems and those located in HICs.Moreover, we excluded papers in which insects were not associated to any disservices or EDS.After this selection process, our database included 172 publications.These were selected for full screening and qualitative assessment, after which 122 publications were kept.The remaining 42 articles were excluded in the last full-text reading step when arthropods were not explicitly mentioned or ES and EDS were not clearly addressed.For the final data extraction step, we registered in separate subset datasets all information related to ecosystem services , entomofauna and farmer knowledge and perceptions.Besides bibliographic default metadata, we registered data about country, income level and study system as well as scientific methodology variables.We defined four main thematic to analyze the articles listed in the final database and extracted information on arthropods, their services and disservices, farmers’ knowledge and actions related to arthropod management; the transdisciplinarity approach of the research.First, we examined the taxonomy of arthropod communities and at which spatial scale they were studied.This issue is important when assessing arthropod-related ES and EDS as understanding arthropod dynamics typically requires studies at the landscape scale.For this, we reported which habitats were included in the study.Second, we used the four Millennium Ecosystem Assessment’s EDS were visualized through a network analysis using the R bipartite package.In addition, we extracted diversity data of arthropod taxa related to ES or EDS.Third, we gathered information on the type of farmers’ knowledge and associated management practices regarding arthropods in their farming systems.We also recorded all actions mentioned in the studies for subsequent classification of values based on arthropod management strategies and whether chemical pesticides were used.Fourth, we analyzed to what extent the research works had been developed through a transdisciplinary approach.Transdisciplinarity addresses relations between science and society, making transformations from science building process and involving stakeholders since the first stages of research process to better target problems.To assess whether research processes encompassed knowledge co-construction and sharing, we set a farmers’ participation index adapted from the typology proposed by Pretty and Brandt et al..The five levels of the FPI reflect the degree of involvement of farmers in research process, from an absence of farmers or no implicit participation to a shared and coordinated implication of farmers in research.In addition, we identified the person involved in arthropod identification.All statistical analyses and graphs were performed using R 4.0.4.The 122 selected studies were conducted predominantly in SubSaharan Africa , Latin America & Caribbean and East Asia & Pacific.Overall, 44% of the studies were conducted at a regional scale, 39.0% focused on local scale and 15.0% covered national or transnational scales.In total, 79.5% of the publications were English-language performed, followed by Spanish or bilingual version English/Spanish and French.Research disciplines concerned mainly “Agriculture and Agronomy” , Ecology-Biologyand Entomology , with a low occurrence of studies belonging to social sciences, economics or multidisciplinary approaches.The majority of publications focused either on crop fields , agroforests or crop storages , encompassing 68 different crops.In most cases , those systems were polycultural with monoculture and mixed systems representing 22.2% and 17.1% of the studies, respectively.Most works studied insect-plant relationship only at the plot-level and only 29.8% included the surrounding habitats.Because several services could be analyzed in a single study, the total number of studied ES and EDS was higher than the total number of studies.Most studies focused on regulating ES and EDS.Only 6.86% of services referred to cultural services, and even fewer to provisioning and supporting services.Overall, 16 main categories of ES and EDS were covered.