Qualitative aspects of myrmecocenosis (Hym., Formicidae) in olive orchards with different agricultural management in Spain

Redolfi, Inés; Tinaut, Alberto; Pascual, Felipe; Campos, Mercedes

doi:10.1046/j.1439-0418.1999.00411.x

Cited by 35 publications

(40 citation statements)

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“…Olive orchard agroecosystems are inhabited by a rich and varied arthropod fauna and ants are one of the most abundant and diverse groups Morris & Campos, 1999;Redolfi et al, 1999;Santos et al, 2007a). Most species of ants build their nests in the ground either under the tree canopy or between the rows of olive trees, although some species such as Crematogaster scutellaris (Hymenoptera: Formicidae) build their nests under bark (Redolfi et al, 1999).…”

Section: Introductionmentioning

confidence: 99%

“…Most species of ants build their nests in the ground either under the tree canopy or between the rows of olive trees, although some species such as Crematogaster scutellaris (Hymenoptera: Formicidae) build their nests under bark (Redolfi et al, 1999). Ants play an important role within the arthropod community in olive orchards as they consume larvae of pests, such as Prays oleae (Lepidoptera: Plutellidae) (Arambourg, 1986;Morris et al, 2002;Pereira et al, 2002), but can also have harmful effects on natural enemies because ants eat the eggs of the predator Chrysoperla carnea (Neuroptera: Chrysopidae) (Morris et al, 1998) and the parasitoid Trichogramma cacoeciae (Hymenoptera: Trichogrammatidae) used for the biological control of Prays oleae (Pereira et al, 2004).…”

Section: Introductionmentioning

confidence: 99%

“…In general, the degree of biodiversity in these systems depends on four main characteristics of the agroecosystem: the diversity of vegetation within and around the system, the permanence of the different crops within the system, the intensity of management and the extent of the separation of the system from natural vegetation (Southwood & Way, 1970). In relation to the intensity of management in conventional olive farming, in which synthetic pesticides and fertilizer are allowed and the soil is frequently deeply ploughed, the abundance and richness of ant species is lower than on land organically farmed (Redolfi et al, 1999;Santos et al, 2007b). Research has demonstrated that the timing of spraying is of utmost importance if negative side effects are to be minimized (Santos et al, 2007b), but in the case of soil management the effect of different strategies on beneficial arthropods is less well known.…”

Section: Introductionmentioning

confidence: 99%

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Short term response of ants to the removal of ground cover in organic olive orchards

Campos¹,

Fernández²,

Ruano³

et al. 2011

Eur. J. Entomol.

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Abstract. Ants are the most abundant group of soil arthropods in olive groves where they are involved in various trophic relationships of great importance for crops. The system of soil management is one agricultural practice that has a great effect on ants, so the objective of this study was to compare ant populations in organic olive orchards with a ground cover of natural vegetation and others where this natural vegetation is mechanically removed at the beginning of June. Ants were sampled using pitfall traps at 14, 30, 70 and 90 days after the removal of the ground vegetation. Overall, ant biodiversity did not change. However, changes were observed in the abundance of ant species, in particular, in those species that build shallow nests in the soil, both between the rows of trees and under the canopy of olive trees. In contrast, deep nesting species, such as Messor barbarus, were not affected. The response also differed between the various genera: the abundance of Cataglyphis increased, due to there being more of the species C. rosenhaueri, while there was a significant fall in Aphaenogaster, due to the decline in abundance of A. senilis. Thirty days after the removal of vegetation, the response of most of the genera was clearly noticeable, due to the increased activity of workers, and in some cases there were still differences after 90 days.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Short term response of ants to the removal of ground cover in organic olive orchards

Campos¹,

Fernández²,

Ruano³

et al. 2011

Eur. J. Entomol.

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“…1), which constitute also, if we consider all the years, the largest group that gave positive ELISA reactions (Table 2). This may be due to the type of agronomic practices applied in the olive orchard, which favours the presence of ants (Redolfi et al, 1999). Other groups that showed a relation with the phytophagous generation are Coleoptera, spiders and hemiptera (Fig.…”

Section: Resultsmentioning

confidence: 99%

Detection by Elisa of Predators of Prays Oleae (Lepidoptera: Plutellidae) in a Portuguese Olive Orchard

Lozano¹,

Morris²,

Campos³

et al. 2002

Acta Hortic.

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Over 900 predators were collected during two years from a Portuguese organic olive orchard, and tested in a serological bioassay for Prays oleae predation.The highest number of predators tested positive during the phyllophagous and antophagous generations of P. oleae. Ants were the most commonly found predators, followed by Coleoptera, Hemiptera and spiders. INTRODUCTIONOlive is an important crop in Portugal, grown over a surface of 360 000 ha. Among its pests, Prays oleae (Lepidoptera: Plutellidae), is the most important. This moth has three generations a year, phyllophagous, antophagous and carpophagous, the last one, which presents infestation levels of up to 60% being responsible for the highest damage (Bento, 1999). Control methods are chemical applications and the use of Bacillus thuringiensis. Concerning the auxiliary fauna the most important agents of biological control are parasitoids, with predators having a minor role.A recent study of P. oleae predators in southern Spanish olive orchards was carried out using immunological techniques such as ELISA (Morris et al., 1999). This test is based on the identification of the remains of specific preys (antigen) in the stomach of predators using prey-specific antibodies (Hagler and Naranjo, 1994;Symondson et al., 1996). According this study, the main P. oleae predators detected were ants, followed by Heteroptera and Coleoptera. The aim of the present work is the detection by ELISA of predators of P. oleae in a Portuguese olive orchard.

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“…Epigeic invertebrates have been successfully used as biological indicators of ecosystem health and habitat evaluation in a variety of studies (Redolfi et al, 1999;Vanbergen et al, 2005;Liu et al, 2006) focusing either on specific species or families or even on the whole order. A considerable effort has been invested in various aspects of their ecology, especially regarding effects of habitat heterogeneity and habitat loss on their activity density and distribution (Driscoll and Weir, 2005), and effects of the geographical location on their population sustainability (Thomas et al, 2001;Holland et al, 2004).…”

Section: Introductionmentioning

confidence: 99%

The impact of human land use on the composition and richness of ground and dung beetle assemblages

Plexida¹,

Sfougaris²,

Papadopoulos³

2014

Appl Ecol Env Res

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Plexida et al. : The impact of human land use on the composition and richness of ground and dung beetle assemblages - Abstract. This paper presents the results of a survey on the habitat and seasonal variation in activity density and richness of ground and dung beetle assemblages in a heterogeneous landscape of central Greece. Beetles were collected using 2,646 pitfall traps across an area of 138 ha representative of the Mediterranean mountainous landscape. Sampling was performed in cereal fields, corn fields, fallow land, grassland, Robinia pseudoacacia plantations, oak forest -farmland ecotone and oak forest using pitfall traps. A total of 18,275 individuals belonging to 38 species were collected, whereas only seven species constituted the 82.64% of the overall captures. Onthophagus ovatus was the most common species in all habitats. Beetle assemblages varied markedly regarding the number of species, while higher densities were reported during June. Significant differences in beetle richness were found considering habitat preferences with the lowest species richness in corn fields. Carabidae assemblages were both most abundant and diverse in plantations, whereas Scarabaeidae assemblages were most abundant and diverse in fallow land. Among estimated diversity indices, Margalef's index generated similar results with the observed diversity, likewise non parametric estimators. Overall, the results obtained in the present study suggest that agricultural areas in mountainous heterogeneous landscape might be the important factor for conserving rich beetle diversity, whereas supplementary biotic factors should be explored.

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Qualitative aspects of myrmecocenosis (Hym., Formicidae) in olive orchards with different agricultural management in Spain

Cited by 35 publications

References 0 publications

Short term response of ants to the removal of ground cover in organic olive orchards

Short term response of ants to the removal of ground cover in organic olive orchards

Detection by Elisa of Predators of Prays Oleae (Lepidoptera: Plutellidae) in a Portuguese Olive Orchard

The impact of human land use on the composition and richness of ground and dung beetle assemblages

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