Landscape effects on pollinator communities and pollination services in small-holder agroecosystems

Zou, Yi; Bianchi, Felix J.J.A.; Jauker, Frank; Xiao, Hai; Chen, Junhui; Cresswell, James; Luo, Shudong; Huang, Jikun; Deng, Xiangzheng; Hou, Lingling; Werf, Wopke Van der

doi:10.1016/j.agee.2017.05.035

Cited by 50 publications

(70 citation statements)

References 71 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The health of honey bee colonies, however, is threatened by the application of pesticides, of which the wide application of neonicotinoids is particularly concerning . The Chinese honey bee (also called the eastern honey bee), Apis cerana , is an important pollinator species that can be both managed and feral in most of China, providing important pollination services for not only cultivated crops but also wild flowers . Compared with the largest commercially managed bee groups, A. millifera , the health of A. cerana has received much less attention …”

Section: Introductionmentioning

confidence: 99%

Impact of acute oral exposure to thiamethoxam on the homing, flight, learning acquisition and short‐term retention of Apis cerana

Zhang

Sun

et al. 2019

Pest Management Science

Self Cite

View full text Add to dashboard Cite

BACKGROUND: Thiamethoxam (TMX) represents the second generation of neonicotinoids that has been widely applied in agricultural activities, while how TMX alters the behavior of Apis cerana, an important native honey bee species in China, is not clear. We carried out three independent experiments to study the impact of acute oral treatment of 20 L TMX at concentrations of 2.4 ppb (0.048 ng/bee) and 10 ppb (0.2 ng/bee) on the homing, flight, learning acquisition and short-term retention ability of A. cerana. The homing ability was assessed by the catch-and-release method, the flight ability was assessed by flight mills, and the learning acquisition and short-term retention were evaluated by the proboscis extension response method.RESULTS: When treated with 10 ppb of TMX, bees had a significantly higher average homing time, mean flight velocity, flying distance, and flying duration than the control, whereas 2.4 ppb concentration did not cause any significant effect on homing or flight ability. Bees treated with either 2.4 ppb or 10 ppb TMX had significantly lower learning acquisition and short-term retention ability. CONCLUSION: Results suggest that acute oral exposure to 10 ppb of TMX altered the short-distance homing time, flight ability, and learning acquisition and short-term retention ability. Our study also highlights the concern that acute oral exposure to a low concentration of 2.4 ppb could have consequences on the behavior of A. creana. Those multiple sublethal alterations on A. cerana's behavior indicate that TMX are likely having complex but negative consequences on bee health in the field.

show abstract

Section: Introductionmentioning

confidence: 99%

Impact of acute oral exposure to thiamethoxam on the homing, flight, learning acquisition and short‐term retention of Apis cerana

Zhang

Sun

et al. 2019

Pest Management Science

Self Cite

View full text Add to dashboard Cite

show abstract

“…These results presented here corroborate with the findings of Moreira et al (2015), in which low landscape proportions of agriculture associated with high landscape heterogeneity may favor the maintenance of a greater diversity of pollinators in these landscapes. Because of its contribution to the landscape heterogeneity, agricultural areas can be positively associated with the maintenance of some pollinator species, although this may not necessarily be true for all pollinators (Westphal et al 2003, Rundlöf et al 2008, Diekötter et al 2014, Fahrig et al 2015, Rodriguez & Kouki 2017, Zou et al 2017. This means that the agriculture is not inherently bad for diversity, it can be beneficial if it contributes to the landscape heterogeneity (Kennedy et al 2013, Fründ et al 2016, Zou et al 2017.…”

Section: Discussionmentioning

confidence: 99%

“…Because of its contribution to the landscape heterogeneity, agricultural areas can be positively associated with the maintenance of some pollinator species, although this may not necessarily be true for all pollinators (Westphal et al 2003, Rundlöf et al 2008, Diekötter et al 2014, Fahrig et al 2015, Rodriguez & Kouki 2017, Zou et al 2017. This means that the agriculture is not inherently bad for diversity, it can be beneficial if it contributes to the landscape heterogeneity (Kennedy et al 2013, Fründ et al 2016, Zou et al 2017. However, these results also show that the positive or negative effects of agriculture on pollinator communities can be context-dependent, where the positive effects of the proportion of agriculture tend to be less significant in heterogeneous landscapes in comparison to For pollinators and their interactions, the proportion of agriculture had a significant effect on both landscape groups.…”

Section: Discussionmentioning

confidence: 99%

“…This effect may occur because the complementarity among different vegetation types that can enable the maintenance of a higher diversity of pollinators and buffer natural phenological variation (Fahrig et al 2011). Consequently, in heterogeneous landscapes, pollinator maintenance may rely less on the floral resources available in agricultural fields (Rundlöf et al 2008, Kennedy et al 2013, Fründ et al 2016, Zou et al 2017. Nevertheless, in homogenous landscapes, the resource input of massive flowering in agricultural areas can, at least through part of the year, counterbalance the phenological variation and scarcity of floral resources in the remaining natural areas and probably occupies a vital role in pollinator maintenance in such context (Westphal et al 2003, Diekötter et al 2014, Fründ et al 2016, Zou et al 2017.…”

Section: Discussionmentioning

confidence: 99%

“…Asterisks indicate the P values as follows: * < 0.05, ** < 0.01; *** < 0.001. a tendency to more diverse pollinator communities than more homogeneous landscapes with more agriculture. Therefore, the homogenization of naturally heterogeneous landscapes due to the conversion of natural areas into agricultural fields can generate a loss of pollinator species at wider scales, despite any positive effect that agricultural areas may have for some pollinators on the crop fringes (Rundlöf et al 2008, Fahrig et al 2015, Zou et al 2017. In consonance with that, a recent study realized in the same region found that coffee (Coffea arabica L.) fields close to natural areas and within landscapes with low proportion of agriculture have higher pollinator abundance and higher yield, indicating a synergistic relation between the pollinators maintenance in more heterogeneous landscapes and the agricultural production (Hipólito et al 2018).…”

Section: Discussionmentioning

confidence: 99%

See 2 more Smart Citations

Beyond Good and Evil: Context-Dependent Effects of Agriculture on Pollinators’ Communities and Its Interactions

2018

View full text Add to dashboard Cite

The role of agriculture as a menace or a contribution to the maintenance of the biodiversity and ecosystems function (such as pollination) in heterogeneous landscapes is critical to the balance in the tradeoff relationships between food production and biodiversity. Recent studies suggested that the role of agriculture to the maintenance of biodiversity can be context dependent. Therefore, this study aimed to evaluate the interplay between the proportion of agriculture and landscape heterogeneity on the maintenance of pollinators richness and abundance, and plant-pollinators interactions in agro-natural landscapes. Plant-pollinator surveys were conducted in seminatural areas near agricultural areas in 22 landscapes in the agricultural pole of Chapada Diamantina, Bahia, Brazil. By a combination of PCA and clustering analysis the landscapes were divided into two groups characterized by the inverse correlation of proportion of agriculture and heterogeneity. The first group had low proportion of agriculture and high landscape diversity and the second group had high proportion of agriculture and low landscape diversity. Using linear models, we investigated the differences in plant-pollinator networks structure between these two landscape groups and its relationship with the proportion of agriculture. Our results showed that there is a positive relationship between the plant-pollinator networks number of links, the pollinator species richness and native pollinators abundance with the proportion of agriculture in the landscapes. However, the most heterogeneous landscapes, with smaller proportions of agriculture have networks with more links, higher pollinator species richness and native pollinators abundance than more homogenous landscapes with greater proportions of agriculture. In this sense, even if agricultural areas can favor some pollinators, there are evident losses of pollinator diversity and plant-pollinator interactions associated with the landscape homogenization.

show abstract

Pollinator efficiency of avocado (Persea americana) flower insect visitors

Sagwe

Peters

Dubois

et al. 2022

Ecol Sol and Evidence

View full text Add to dashboard Cite

Pollination services from insects are important for higher yield and better fruit quality in avocado (Persea americana Mill.). Measuring pollinator effectiveness is significant for capturing the relative contributions of different insect taxa to pollination services and for identification of the most important pollinators of this globally important crop. In the present study, we tested pollinator efficiency of avocado in Kenya based on pollen deposition after single visits of flowers by different pollinator species and visitation frequency. We monitored the pollination frequency during the flowering period replicated across six farms. Three trees were selected per farm, each with five flower panicles. Out of the 14 observed insect flower visitor species, pollen deposition efficiency was highest in the Western honey bee (Apis mellifera L.), followed by the hover fly species (Phytomia incisa W.). These two species had both the highest pollen deposition and pollen grain loads on their bodies. Furthermore, A. mellifera was the most frequent avocado flower visitor followed by Diptera except hoverflies. Our results imply that A. mellifera can be managed to achieve adequate pollination services for avocado, particularly in areas lacking efficient wild pollinators.

show abstract

Landscape effects on pollinator communities and pollination services in small-holder agroecosystems

Cited by 50 publications

References 71 publications

Impact of acute oral exposure to thiamethoxam on the homing, flight, learning acquisition and short‐term retention of Apis cerana

Impact of acute oral exposure to thiamethoxam on the homing, flight, learning acquisition and short‐term retention of Apis cerana

Beyond Good and Evil: Context-Dependent Effects of Agriculture on Pollinators’ Communities and Its Interactions

Pollinator efficiency of avocado (Persea americana) flower insect visitors

Contact Info

Product

Resources

About