Impacto das capinas mecânica e química do sub-bosque de Eucalyptus grandis sobre a comunidade de formigas (Hymenoptera: Formicidae)

Ramos, Lucimeire De S.; Zanetti, Ronald; Marinho, Cidália Gabriela Santos; Delabie, Jacques Hubert Charles; Schlindwein, Marcelo Nivert; Almado, Roosevelt de Paula

doi:10.1590/s0100-67622004000100018

Cited by 18 publications

(16 citation statements)

References 5 publications

(7 reference statements)

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“…and giant ant-eaters (Myrmecophaga tridactyla) were also abundant, possibly for eating insects (in particular ants and termites) usually abundant in Eucalyptus plantations (Breece & Dusi 1985, Medri et al 2003. As a matter of fact, ants are considered the most important "plague" of Eucalyptus plantations in southeastern Brazil, demanding a rigorous control by the pulp and paper industry (Ramos et al 2004). In addition to ants and termites, other opportunistic invertebrates and small vertebrate species can be found in Eucalyptus plantations possibly due to its relatively fast growth (i.e., biomass production -Benton et al , Pawson et al 2009, Meers et al 2010.…”

Section: Discussionmentioning

confidence: 99%

Effect of the plantation age on the use of Eucalyptus stands by medium to large-sized wild mammals in south-eastern Brazil

Timo¹,

Lyra-Jorge²,

Gheler‐Costa³

et al. 2015

iForest

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© iForest -Biogeosciences and Forestry IntroductionPatterns of wildlife distribution and abundance have suffered alterations worldwide due to human occupation and related activities (Tilman et al. 2001). The agriculture expansion has replaced the original vegetation and fragmented primary environments, thus affecting wildlife patterns of habitat use (Goodwin & Fahrig 2002, Fahrig 2003. However, studies in agricultural landscapes have shown the use of man-made habitats by the wildlife, such as coffee plantations in Mexico (Moguel & Toledo 1999), banana and coconut plantations in Costa Rica (Harvey et al. 2006, Harvey & González Villalobos 2007, cocoa and Eucalyptus plantations in Brazil (Faria et al. 2006, Lyra-Jorge et al. 2008) and subsistence agriculture in Nepal (Acharya 2006). A great spatial heterogeneity due to different strata and structural complexity exists in native forests, which results in a significant β-diversity (Moffett 2000, Parker & Brown 2000. In an agricultural landscape, a considerable loss of biodiversity occurs where monocultures are spatially more homogenous. However, the environment of Eucalyptus plantations varies dramatically along their commercial cycle. At the first stage, it assumes a bushy structure that later evolves into a forest, which is totally clear-cut at the end of 6-7 years (Turnbull 1995, Wagner et al. 2006. Therefore, these artificial forests present great temporal heterogeneity which may affect patterns of abundance and distribution of resident wildlife, not only for small mammals (Martin et al. 2012), but also for their predators (Verdade et al. 2011). In fact, recent studies show these forests are capable of maintaining a resident wildlife (Penteado 2006, Lyra-Jorge et al. 2008, Dotta & Verdade 2011, Martin et al. 2012). This study aims at assessing the temporal variation of the specific composition and relative abundance of middle to large-sized mammal species found in Eucalyptus plantations in the State of São Paulo, Southeastern Brazil.Eucalyptus plantations currently occupy over one million hectares in São Paulo, the richest and most developed state in Brazil. Their main commodities are the pulp and paper (ABRAF 2013). Together with livestock production, the ethanol agroindustry primarily based on sugarcane and the pulp and paper silvicultural industry primarily based on Eucalyptus are the main agroindustrial sectors of São Paulo state. However, unlike the other two agroindustrial sectors, pulp and paper industries follow Brazilian environmental laws relatively well, due to market pressure posed by certification organizations such as the Forest Stewardship Council (FSC -Verdade et al. 2012). Accordingly, the assessment of the distribution of middle to large-sized mammals in Eucalyptus plantations may give significant advances to both the environmental certification process of this sector and the elaboration of public policies which can result in the inclusion of such landscapes in the context of wildlife conservation. Materials and Methods Study AreaThis study was...

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Section: Discussionmentioning

confidence: 99%

Effect of the plantation age on the use of Eucalyptus stands by medium to large-sized wild mammals in south-eastern Brazil

Timo¹,

Lyra-Jorge²,

Gheler‐Costa³

et al. 2015

iForest

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“…Once it is a generalist species, even ant baits used for leafcutting ant control in pastures become attractive and, depending on the active ingredient used, the effect may be delayed and also cumulative (raMoS et al 2003). Decrease in individuals of E. brunneum was already observed even after herbicide usage in a eucalyptus area, making evident the negative impact of habitat changes upon this species regarded as non-target (raMoS et al 2004).…”

Section: _____________________________________mentioning

confidence: 99%

Exposure of Workers of Ectatomma brunneum Smith (Hymenoptera: Formicidae: Ectatomminae) to ant Baits Containing Different Active Ingredients under Laboratory Conditions

Tofolo¹,

Giannotti²,

Pizano³

2015

EntomoBrasilis

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Abstract. This work evaluated the short-range mortality of workers of Ectatomma brunneum Smith when exposed to ant baits in laboratory, in order to verify if the attractiveness of this non-target species by ant baits intended to be used in the control of leaf-cutting (target) ants might be harmful to the population studied. Workers were exposed in laboratory for 48 hours to ant baits used in pastures to control the leaf-cutting ants Atta capiguara Gonçalves (Formicidae: Attini) and Atta bisphaerica Forel (Formicidae: Attini), the major species that cause damage to pastures. The following formulations of granular bait ant-killer active ingredients sulfluramid 0.3%, fipronil 0.003% and chlorpyrifos 0.45% were used. The experiment outline was composed by groups of 30 workers exposed to 10g of moistened ant baits, using three repetitions. Daily follow-up on mortality was performed for 20 days, recording dead and intoxicated workers. The control group received only 10g of moistened citric pulp. From the results achieved, survival curves as a function of observation time were plotted using the Kaplan-Meier method and compared applying the Logrank test (nonparametric) at 5% significance level. The results revealed that the three active ingredients tested were toxic and the population reduced 35.56% in the treatment with chlorpyrifos, 31.11% with sulfluramid and 30% with fipronil.Keywords: Chlorpiryfos; Fipronil; Poneromorphs; Sulfluramid; Toxicity. Exposição de Operárias de Ectatomma brunneum Smith (Hymenoptera: Formicidae: Ectatomminae) a Iscas Formicidas Contendo Diferentes Ingredientes Ativos em Condições de LaboratórioResumo. Este trabalho avaliou a mortalidade a curto prazo de operárias de Ectatomma brunneum Smith expostas a iscas formicidas em laboratório, a fim de verificar se a capacidade de atração desta espécie não-alvo a formicidas destinadas ao controle de formigas cortadeiras (alvo) pode ser prejudicial para a população estudada. As operárias foram expostas em laboratório por 48 horas a iscas formicidas utilizadas em pastagens para controlar as formigas cortadeiras Atta capiguara Gonçalves (Formicidae: Attini) e Atta bisphaerica Forel (Formicidae: Attini), as principais espécies que causam danos às pastagens. Foram utilizados os seguintes ingredientes ativos: sulfluramida 0,3%, fipronil 0,003% e clorpirifos 0,45%. O experimento foi composto por grupos de 30 operárias expostas a 10g de formicidas, usando três repetições. Foi realizado o acompanhamento diário da mortalidade durante 20 dias, registrando-se o número de operárias mortas e intoxicadas. O grupo controle recebeu apenas 10g de polpa cítrica umedecida. A partir de resultados obtidos, as curvas de sobrevivência em função do tempo de observação foram plotadas usando o método de Kaplan-Meier, e comparadas com aplicação do Logrank test (teste não-paramétrico) em nível de significância de 5%. Os resultados revelaram que os três ingredientes ativos testados foram tóxicos e a população reduzida em 35.56% no tratamento com clorpirifós, 31,11% com sulflurami...

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“…Em ambientes de floresta, esperase que a riqueza seja sempre maior, mas ela pode ser elevada também em determinados sistemas agrícolas, tais como determinados sistemas agroflorestais (Delabie et al, 2007). No entanto, sua riqueza diminui em áreas de vegetação pouco diversa, como pastagens (Delabie et al, 2007) ou monoculturas (Ramos et al, 2004). Muitos efeitos negativos na riqueza e composição de formigas podem ser atribuídos à diminuição da disponibilidade dos recursos alimentares diretamente utilizáveis, assim como dos organismos que vivem associados às formigas (Delabie, 2001).…”

Section: Formigasunclassified

Avaliação de duas técnicas de translocação de serrapilheira sobre as assembleias de aranhas (Arachnida: Araneae) e formigas (Hymenoptera: Formicidae)

Benati

Peres

Brescovit

et al. 2011

nbc

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Impacto das capinas mecânica e química do sub-bosque de Eucalyptus grandis sobre a comunidade de formigas (Hymenoptera: Formicidae)

Cited by 18 publications

References 5 publications

Effect of the plantation age on the use of Eucalyptus stands by medium to large-sized wild mammals in south-eastern Brazil

Effect of the plantation age on the use of Eucalyptus stands by medium to large-sized wild mammals in south-eastern Brazil

Exposure of Workers of Ectatomma brunneum Smith (Hymenoptera: Formicidae: Ectatomminae) to ant Baits Containing Different Active Ingredients under Laboratory Conditions

Avaliação de duas técnicas de translocação de serrapilheira sobre as assembleias de aranhas (Arachnida: Araneae) e formigas (Hymenoptera: Formicidae)

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