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Results of the generalized linear model for the effects of plant biomass, clustering and architecture of S. condensatum, on the abundance and species richness of wintering arthropods. Bold values denote significant results.
Source publication
Numerosas especies de artrópodos invernantes de la región pampeana utilizan a las gramíneas perennes como refugio. Las características estructurales y el tamaño de las plantas, así como su disposición espacial, condicionarían la disponibilidad de hábitat o de refugio y, en consecuencia, la selección de esas plantas por artrópodos invernantes. En es...
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Citations
... Cabe destacar que para R. lopantae los niveles más altos de presencia en las plantas medicinales y aromáticas en el corredor B ocurrieron en periodo invernal. Esto refuerza la estrategia de establecer corredores con plantas medicinales y aromáticas como cultivo permanente para favorecer la estancia de los enemigos naturales en la finca durante todo el año (Cánepa et al., 2015). ...
Medicinal and aromatic plants can be considered as “multifunctional plants” due to the diverse properties and ecosystem services they provide in agroecosystems. Among the latter, they regulate the populations of insect pests in crops, harboring their natural enemies. In order to determine the plant species with the greatest presence of natural enemies of Saissetia oleae in an agro-ecological crop of Olea europea, biological corridors with species of medicinal and aromatic plants were established in three sectors of the farm. The plants were collected together with the farmers of the Maipo Province and sticky pheromone traps, vacuum cleaner and entomological umbrella were used to collect the arthropods. The results indicate that Calendula officinalis, Borago officinalis, Aquilea millefolium, Linun usitatissimun, Chamaemulum nobile, Origanum vulgare, Artemisia agrotanum and Symphytum officinale are the species with the highest presence of S. oleae natural enemies identified as Coccophagus sp., Metaphycus helvolus, Metaphycus lounsbury, Metaphycus sp., Rhyzobius lophanthae, Scutellista caerulea.
The aim of this paper was to determine the potential of bioethanol production using two rangeland communities dominated by Spartina argentinensis Parodi or Panicum prionitis Ness. and its environmental sustainability, considering soil organic carbon and biodiversity measured in two taxa: flowering plants and epigeal soil arthropods. S. argentinensis and P. prionitis biomass production with two different harvest frequencies (every 6 or 12 months) was estimated and compared with control areas. Biomass production did not differ with harvest frequency. Although cell wall fibers composition varied with species and treatment, potential bioethanol production per hectare was not affected and yields were similar to those obtained from other lignocellulosic materials reported in the literature. According to our results, one annual harvest is recommended for both plant communities in order to minimize economic and energy costs. Soil organic carbon showed no statistically significant differences due to treatments in the S. argentinensis community, though differences were found in the middle layer (7.5–15 cm) of the P. prionitis rangeland. The vegetation and arthropods biodiversity indices analyzed (richness, evenness, abundance, and diversity) were not affected by treatments.
