Does the Silvopastoral System Alter Hymenopteran Fauna (Insecta: Hymenoptera) in<i>Brachiaria decumbens</i>Monocultures?

Auad, Alexander Machado; Braga, A.L. F.; Fonseca, Mayara Gonçalves; Resende, Tiago Teixeira de; Toledo, Antônio Marcos Oliveira; Lucindo, T. S.; Vilela, Evaldo F.

doi:10.1093/aesa/sav035

Cited by 5 publications

(9 citation statements)

References 16 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Apart from Eupelmidae, all of these families were, however, more diverse in the silvopasture. These results differ slightly to those observed by Auad, et al 15 , who analysed Hymenoptera in the same system for a shorter time period and found greater abundance of Icheumonidae and Braconidae in the silvopasture as well as to other studies where abundance of parasitoids was higher in pastures with lower management intensity, and lower in conventional monocultural pastures 28 . Our overall analysis of parasitoids as a functional group showed greater richness and diversity in the silvopasture, but greater abundance in the monoculture, very similar to that reported previously 15 .…”

Section: Discussioncontrasting

confidence: 99%

“…Formicidae was the most abundant Hymenoptera family in both systems. For this family abundance, richness and diversity were significantly higher in the silvopasture, as has been found previously 15 , 66 – 68 . In the silvopastoral system this increase in ant diversity could be due to the differences in tree physiology and structural complexity, resulting in an increase in diversity 69 , 70 .…”

Section: Discussionsupporting

confidence: 88%

“…Due to this importance of Hymenoptera, conversion of monocultures to silvopastures, if implemented at larger scales, has the potential to positively influence the number of beneficial insects at landscape scales and benefit not only the silvopasture itself, but also other production systems in the region through spillover effects. There is evidence that different groups of Hymenoptera respond differently to land-use changes 64,65 and some groups are useful indicators of environmental degradation 15,19 .…”

Section: Discussionmentioning

confidence: 99%

“…The effect of conversion to silvopastoral systems on specific insect groups has been studied previously 9 – 14 , and it is known that conversion of a monoculture of Brachiaria decumbens to a silvopasture increases Hymenoptera diversity 15 . Inventories of insect diversity in ecosystems allow us to assess how to prevent or remedy the impacts of environmental change.…”

Section: Introductionmentioning

confidence: 99%

“…The order Hymenoptera is among the most diverse insect groups, with over 154,000 described species 18 . Furthermore, species of Hymenoptera are potential bioindicators, since the abundance and richness of many of the families are spatially and temporally variable and these variations are correlated to changes in environmental structure and diversity of other organisms 11 , 15 , 19 – 22 . Another important order in pastures is Hemiptera.…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Differences in the insect fauna associated to a monocultural pasture and a silvopasture in Southeastern Brazil

Paiva

Auad²,

Veríssimo

et al. 2020

Sci Rep

View full text Add to dashboard Cite

A major challenge for global agriculture is the reduction of the environmental impacts caused by meat and dairy production, and the conversion of monocultural pastures to silvopastoral systems has emerged as an important ally in this process. In order to understand the effects of this conversion we analysed 4 years of sampling of the insect fauna from a conventional monocultural pasture and a silvopastoral system in Minas Gerais, Brazil. We aimed to determine whether the changes caused by the conversion affected the abundance, richness and diversity of the insect orders found in the two systems. Total abundance, richness and diversity did not differ between the two systems, but we detected a significant difference in community composition. Several insect orders showed differences in either abundance, richness or diversity between the two systems, and several families of Hymenoptera, which contains pollinators and natural enemies, showed important increases in the silvopasture. Conversion of monocultural pastures to silvopastures can have important consequences on insect fauna involved in essential ecosystem functions, and the implementation of silvopastures at larger scales has the potential to benefit biodiversity conservation and ecosystem service provision at the landscape scale. Bovine livestock is one of the most important sectors of Brazilian agribusiness, and consequently of Brazil's national economy 1. Over 80% of the herd depends on pastures as its major source of food. Pastures are a practical and economically efficient form of producing and offering food to cattle, since they are resistant to fluctuations in grain prices, guaranteeing relatively low costs of production 2,3. An important characteristic of the dynamics of Brazilian pastures has been the substitution of native pastures, composed of native grassland ecosystems in the Cerrado and Pampas, with pastures sown with exotic grass species, especially from the genus Brachiaria, which currently constitute over 50% Brazilian pastures 2. Intensive management of agricultural ecosystems and inappropriate pasture management, such as a lack of nutrient addition, result in the simplification of biological communities, and are the main cause of pasture degradation 4,5. In the search for production systems that minimise the effects of land degradation and increase the profit obtained by farmers, agroforests have emerged as an important alternative 6. Agroforests are increasingly used in Latin America to enhance biodiversity and the provision of ecosystem services. The adoption of agroforests in pastures, in the form of silvopastoral systems, creates an environment that buffers temperature extremes and is more comfortable for the animals, reduces erosion from runoff and wind and increases soil biomass, thus contributing to nutrient cycling 7. Furthermore, combining pastures with trees creates a diversity of microclimates that increases insect diversity 8. The effect of conversion to silvopastoral systems on specific insect groups has been studied previously 9...

show abstract

Section: Discussioncontrasting

confidence: 99%

Section: Discussionsupporting

confidence: 88%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Differences in the insect fauna associated to a monocultural pasture and a silvopasture in Southeastern Brazil

Paiva

Auad²,

Veríssimo

et al. 2020

Sci Rep

View full text Add to dashboard Cite

show abstract

Seasonality of predatory insects (Diptera: Syrphidae and Asilidae) in pasture monoculture and silvopastoral systems from Southeast Brazil

Veríssimo

Auad

Oliveira

et al. 2020

Int J Trop Insect Sci

View full text Add to dashboard Cite

Natural Areas of Cerrado Foster Wasp (Hymenoptera) Diversity in Human Modified Landscapes

Simplício

Abot

Shimbori

et al. 2022

Environmental Entomology

View full text Add to dashboard Cite

Land use changes from native vegetation to agriculture, livestock grazing, and urban development are among the main problems related to biodiversity loss worldwide. In this paper we evaluate how land use changes (eucalypt plantation and pasture) affect the richness and assemblage of wasps (Braconidae, Ichneumonidae, Pompilidae, and Vespidae), in comparison with nearby areas with native vegetation in the Cerrado. Specimens were collected at six points, with two Malaise traps at each location. The collections were performed monthly for 10 d, for 12 mo. A total of 773 hymenopterans of the selected groups were collected, representing 253 species or morphospecies. Richness of the families Ichneumonidae and Pompilidae between the areas did not present significant differences. For the families Braconidae and Vespidae, the richness was greater in the eucalypt plantation and pasture areas compared to the native area. Species composition in the native habitat was different from either of the managed habitats in the studied environment. Furthermore, the composition of wasps in native areas varied less throughout the sampling campaigns when compared with the pasture and eucalyptus sites. In native areas, 85 exclusive morphospecies were found. Thus, changes in land use may cause changes in the composition of wasp species, since areas with native vegetation presented more heterogeneous and stable environments than the other land uses. The maintenance of native areas, even if close to planted forest and/or pasture areas, could be the best way to combine forest productivity with biodiversity conservation.

show abstract

Does the Silvopastoral System Alter Hymenopteran Fauna (Insecta: Hymenoptera) inBrachiaria decumbensMonocultures?

Cited by 5 publications

References 16 publications

Differences in the insect fauna associated to a monocultural pasture and a silvopasture in Southeastern Brazil

Differences in the insect fauna associated to a monocultural pasture and a silvopasture in Southeastern Brazil

Seasonality of predatory insects (Diptera: Syrphidae and Asilidae) in pasture monoculture and silvopastoral systems from Southeast Brazil

Natural Areas of Cerrado Foster Wasp (Hymenoptera) Diversity in Human Modified Landscapes

Contact Info

Product

Resources

About