scholarly journals Agriculture and the Life Aquatic: Effects of Agricultural Landscape Structure on Farmland Aquatic Biodiversity and Water Quality

2019 ◽  
Author(s):  
Sara Collins
2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Károly Lajos ◽  
Ferenc Samu ◽  
Áron Domonkos Bihaly ◽  
Dávid Fülöp ◽  
Miklós Sárospataki

AbstractMass-flowering crop monocultures, like sunflower, cannot harbour a permanent pollinator community. Their pollination is best secured if both managed honey bees and wild pollinators are present in the agricultural landscape. Semi-natural habitats are known to be the main foraging and nesting areas of wild pollinators, thus benefiting their populations, whereas crops flowering simultaneously may competitively dilute pollinator densities. In our study we asked how landscape structure affects major pollinator groups’ visiting frequency on 36 focal sunflower fields, hypothesising that herbaceous semi-natural (hSNH) and sunflower patches in the landscape neighbourhood will have a scale-dependent effect. We found that an increasing area and/or dispersion of hSNH areas enhanced the visitation of all pollinator groups. These positive effects were scale-dependent and corresponded well with the foraging ranges of the observed bee pollinators. In contrast, an increasing edge density of neighbouring sunflower fields resulted in considerably lower visiting frequencies of wild bees. Our results clearly indicate that the pollination of sunflower is dependent on the composition and configuration of the agricultural landscape. We conclude that an optimization of the pollination can be achieved if sufficient amount of hSNH areas with good dispersion are provided and mass flowering crops do not over-dominate the agricultural landscape.


2000 ◽  
Vol 77 (3) ◽  
pp. 193-202 ◽  
Author(s):  
Fabián D Menalled ◽  
Paul C Marino ◽  
Karen A Renner ◽  
Douglas A Landis

2019 ◽  
Vol 656 ◽  
pp. 1157-1167 ◽  
Author(s):  
Sara J. Collins ◽  
Lindsay Bellingham ◽  
Greg W. Mitchell ◽  
Lenore Fahrig

1999 ◽  
Vol 9 (2) ◽  
pp. 634-641 ◽  
Author(s):  
Fabián D. Menalled ◽  
Paul C. Marino ◽  
Stuart H. Gage ◽  
Douglas A. Landis

2019 ◽  
Vol 11 (10) ◽  
pp. 2764
Author(s):  
Kai Ren ◽  
Jianqiang Yang

The development of the social landscape of towns and villages at the county level in China currently lacks sustainability and urgently needs to be optimized. By developing a compound ecological capital system, the optimization of the social landscape will be an important process. Based on the dialectical relationship between landscape production and landscape sustainability, a theoretical framework is proposed as a paradigm of landscape structure. By highlighting the culture base and life proposed in ecosystem services (ES) described in the common international classification of ecosystem services (CICES) methodology, we propose a new social landscape order. We used Hequ County, Shanxi Province, China as the study case, evaluating the ecology level of social capital by gravity. In this paper, four types of optimization approaches for social landscape structure are proposed: completing urbanization (urbanized approach), shaping social landscape (prioritized development approach), protecting nature (scale-controlled approach), and increasing agricultural landscape (migrated and merged approach).


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