Contrasting effects of host crops and crop diversity on the abundance and parasitism of a specialist herbivore in agricultural landscapes

Arash Kheirodin; Héctor A. Cárcamo; Alejandro C. Costamagna

doi:10.1007/s10980-020-01000-0

Crop diversity increases predator abundance but not predation on cereal leaf beetles in agricultural landscapes

Journal of Pest Science ◽

10.1007/s10340-021-01454-4 ◽

2022 ◽

Author(s):

Arash Kheirodin ◽

Héctor A. Cárcamo ◽

Barbara J. Sharanowski ◽

Alejandro C. Costamagna

Keyword(s):

Agricultural Landscapes ◽

Crop Diversity ◽

Leaf Beetles ◽

Predator Abundance

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Landscape heterogeneity rather than crop diversity mediates bird diversity in agricultural landscapes

PLoS ONE ◽

10.1371/journal.pone.0200438 ◽

2018 ◽

Vol 13 (8) ◽

pp. e0200438 ◽

Cited By ~ 18

Author(s):

Sarah Redlich ◽

Emily A. Martin ◽

Beate Wende ◽

Ingolf Steffan-Dewenter

Keyword(s):

Landscape Heterogeneity ◽

Agricultural Landscapes ◽

Crop Diversity ◽

Bird Diversity

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The effects of crop diversity and crop species on biological diversity in agricultural landscapes: a systematic review protocol

Wellcome Open Research ◽

10.12688/wellcomeopenres.15343.1 ◽

2019 ◽

Vol 4 ◽

pp. 101

Author(s):

Cami Moss ◽

Martin Lukac ◽

Francesca Harris ◽

Charlotte L. Outhwaite ◽

Pauline F.D. Scheelbeek ◽

...

Keyword(s):

Systematic Review ◽

Crop Production ◽

Food Systems ◽

Environmental Science ◽

Biological Diversity ◽

Data Extraction ◽

Agricultural Landscapes ◽

Crop Diversity ◽

Future Research ◽

Crop Species

Agricultural intensification is a well-known driver of biodiversity loss. Diversity of crop production over space and time reduces land use intensity and may mitigate impacts on biodiversity while contributing to growing demand for human food and nutrition resources. Crop species are also known to have independent impacts on biodiversity. To date, reviews synthesising our knowledge of crop species and crop diversity-biodiversity links are missing. We will therefore conduct a systematic review by searching multiple agriculture, ecology and environmental science databases (e.g. Web of Science, Geobase, Agris, AGRICOLA, GreenFILE) to identify studies reporting the impacts of crop diversity and crop species on the biological diversity of fauna, flora and microbes in agricultural landscapes. Outcomes will include metrics of species richness, abundance, assemblage, community composition and species rarity. Screening, data coding and data extraction will be carried out by one reviewer and a proportion will be independently conducted by a second reviewer. Study quality and risk of bias will be assessed. Evidence will first be mapped by species/taxa then assessed for further narrative or statistical synthesis based on comparability of results and likely robustness. Gaps in the evidence base will also be identified with a view toward future research and policy directions for nutrition, food systems and ecology.

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Increasing crop heterogeneity enhances multitrophic diversity across agricultural regions

Proceedings of the National Academy of Sciences ◽

10.1073/pnas.1906419116 ◽

2019 ◽

Vol 116 (33) ◽

pp. 16442-16447 ◽

Cited By ~ 52

Author(s):

Clélia Sirami ◽

Nicolas Gross ◽

Aliette Bosem Baillod ◽

Colette Bertrand ◽

Romain Carrié ◽

...

Keyword(s):

Large Scale ◽

Agricultural Landscape ◽

Mean Field ◽

Agricultural Landscapes ◽

Crop Diversity ◽

Field Size ◽

Positive Effects ◽

Synthetic Index ◽

Crop Types ◽

Landscape Level

Agricultural landscape homogenization has detrimental effects on biodiversity and key ecosystem services. Increasing agricultural landscape heterogeneity by increasing seminatural cover can help to mitigate biodiversity loss. However, the amount of seminatural cover is generally low and difficult to increase in many intensively managed agricultural landscapes. We hypothesized that increasing the heterogeneity of the crop mosaic itself (hereafter “crop heterogeneity”) can also have positive effects on biodiversity. In 8 contrasting regions of Europe and North America, we selected 435 landscapes along independent gradients of crop diversity and mean field size. Within each landscape, we selected 3 sampling sites in 1, 2, or 3 crop types. We sampled 7 taxa (plants, bees, butterflies, hoverflies, carabids, spiders, and birds) and calculated a synthetic index of multitrophic diversity at the landscape level. Increasing crop heterogeneity was more beneficial for multitrophic diversity than increasing seminatural cover. For instance, the effect of decreasing mean field size from 5 to 2.8 ha was as strong as the effect of increasing seminatural cover from 0.5 to 11%. Decreasing mean field size benefited multitrophic diversity even in the absence of seminatural vegetation between fields. Increasing the number of crop types sampled had a positive effect on landscape-level multitrophic diversity. However, the effect of increasing crop diversity in the landscape surrounding fields sampled depended on the amount of seminatural cover. Our study provides large-scale, multitrophic, cross-regional evidence that increasing crop heterogeneity can be an effective way to increase biodiversity in agricultural landscapes without taking land out of agricultural production.

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The effects of crop diversity and crop type on biological diversity in agricultural landscapes: a systematic review protocol

Wellcome Open Research ◽

10.12688/wellcomeopenres.15343.2 ◽

2020 ◽

Vol 4 ◽

pp. 101

Author(s):

Cami Moss ◽

Martin Lukac ◽

Francesca Harris ◽

Charlotte L. Outhwaite ◽

Pauline F.D. Scheelbeek ◽

...

Keyword(s):

Systematic Review ◽

Food Systems ◽

Environmental Science ◽

Biological Diversity ◽

Data Extraction ◽

Biodiversity Loss ◽

Agricultural Landscapes ◽

Crop Diversity ◽

Future Research ◽

Crop Type

Agricultural intensification is a well-known driver of biodiversity loss. Crop diversity and its changes over space and time drive land use intensity and impact biodiversity of agricultural landscapes, while meeting the growing demand for human food and nutrition resources. Loss of biodiversity in agricultural landscapes reduces primary productivity and soil health and erodes a range of other ecosystem services. At present, while having partial understanding of many processes, we lack a general synthesis of our knowledge of the links between crop diversity and biodiversity. We will therefore conduct a systematic review by searching multiple agriculture, ecology and environmental science databases (e.g. Web of Science, Geobase, Agris, AGRICOLA, GreenFILE) to identify studies reporting the impacts of crop diversity and crop type on the biological diversity of fauna and flora in agricultural landscapes. Response variables will include metrics of species richness, abundance, assemblage, community composition and species rarity. Screening, data coding and data extraction will be carried out by one researcher and a subset will be independently carried out by a second researcher for quality control. Study quality and risk of bias will be assessed. Evidence will first be mapped to species/taxa then assessed for further narrative or statistical synthesis based on comparability of results and likely robustness. Gaps in the evidence base will also be identified with a view toward future research and policy directions for nutrition, food systems and ecology.

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Globalisation and Agricultural Landscapes

10.1017/cbo9780511844928 ◽

2009 ◽

Cited By ~ 23

Keyword(s):

Agricultural Landscapes

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To the issue of water treatment by hydrocyclone on the systems of the combined irrigation

Melioration and Water Management ◽

10.32962/0235-2524-2019-2-21-25 ◽

2020 ◽

Vol 0 (2) ◽

pp. 21-25

Author(s):

Nikolay Dubenok ◽

Andrey Novikov ◽

Sergei Borodychev ◽

Maria Lamskova

Keyword(s):

Water Treatment ◽

Organic Compounds ◽

Irrigation Water ◽

Irrigation System ◽

Petroleum Products ◽

Cylindrical Part ◽

Agricultural Landscapes ◽

Treatment Unit ◽

Drain Pipe ◽

Irrigation Network

At the stage of water treatment for irrigation systems, the efficiency capture coarse and fine mechanical impurities, as well as oil products and organic compounds affects the reliability of the equipment of the irrigation network and the safety of energy exchange processes in irrigated agricultural landscapes. The violation of work irrigation system can cause disruptions in irrigation schedules of agricultural crops, crop shortages, degradation phenomena on the soil and ecological tension. For the combined irrigation system, a water treatment unit has been developed, representing a hydrocyclone apparatus with a pipe filter in the case. For the capacity of 250 m3/h the main geometrical dimensions of hydrocyclone have been calculated. To organize the capture petroleum products and organic compounds, it has been proposed a modernization of a hydrocyclone unit, consisting in dividing the cylindrical part of the apparatus into two section. The first is section is for input irrigation water, the second one is for additional drainage of clarified irrigation water after sorption purification by the filter, placed on the disk and installed coaxially with the drain pipe and the pipe filter.

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