Analysing spatial correlation of weeds and harvester ants in cereal fields using point processes
MetadataShow full item record
The interaction between the spatial distribution of weed richness and weed cover and the spatial location of harvester ant nets was investigated in cereal fields. The understanding of such interdependencies can be relevant to understand weed population dynamics in dryland cereal fields and may enhance management strategies for weed control. We used spatial statistical tools derived from point process theory. In particular, we compared the two spatial configurations by assuming two different point patterns. We did so by replacing the random weed fields by a related point pattern and comparing it with the point pattern of harvester ants. Our results suggest that areas with a high density of ant nests are, in this case study, in areas with low weed richness and that large nests have a greater impact than small nests. Considering that only one field was analysed, preserving and enhancing regular ant nest distributions, especially of large nests, might have an impact on depleting weeds and consequently enhancing weed control.
Is part ofArthropod-Plant Interactions, 2016, vol. 10, núm. 3, p. 197-205
European research projects
Showing items related by title, author, creator and subject.
Spatial and temporal stability of weed patches in cereal fields under direct drilling and harrow tillage Izquierdo i Figarola, Jordi; Milne, Alice; Recasens i Guinjuan, Jordi; Royo-Esnal, Aritz; Torra Farré, Joel; Webster, R. (Richard); Baraibar Padró, Bàrbara (MDPI, 2020-03-25)The adoption of conservation agriculture (CA) techniques by farmers is changing the dynamics of weed communities in cereal fields and so potentially their spatial distribution. These changes can challenge the use of ...
Long-term effect of different tillage systems on the emergence and demography of Bromus diandrus in rainfed cereal fields Recasens i Guinjuan, Jordi; García, Addy Laura; Cantero-Martínez, Carlos; Torra Farré, Joel; Royo-Esnal, Aritz (European Weed Research Society, 2016)The adoption of no-tillage systems in semi-arid cereal fields in northern Europe has resulted in difficulties in controlling Bromus diandrus. However, in some fields, lower densities are observed in continuous long-term ...
Torra Farré, Joel; Forcella, Frank; Recasens i Guinjuan, Jordi; Royo-Esnal, Aritz (MDPI, 2020-03-01)Knowledge on the emergence patterns of rare arable plants (RAP) is essential to design their conservation in Europe. This study hypothesizes that is possible to find functional groups with similar emergence patterns within ...