Leandro Battirola - Academia.edu (original) (raw)
Papers by Leandro Battirola
Neotropical Entomology
Six trees of the palm species Attalea phalerata Mart. were sampled during high water (aquatic pha... more Six trees of the palm species Attalea phalerata Mart. were sampled during high water (aquatic phase) of the Pantanal of Mato Grosso (February 2001), by canopy fogging. The composition, structure, and biomass of the arthropod community associated with their canopies were analysed, as well as the influence the flood pulse renders on it. Each tree was fogged once, followed by three consecutive collections. A total of 63,657 arthropods (643.0 +/-; 259.87 ind./m(2)) were collected, representing 25 orders in the classes Insecta, Arachnida, Diplopoda and Crustacea. The dominant groups were Acari (40.0%; 257.2 +/- 116.50 ind./m(2)), Coleoptera (12.0%; 77.5 +/- 64.93 ind./m(2)), Psocoptera (9.2%; 59.0 +/- 38.00 ind./m(2)), Diptera (8.4%; 54.1 +/- 18.72 ind./m(2)), Collembola (8.3%; 53.4 +/- 26.24 ind./m(2)) and Hymenoptera (7.9%; 50.6 +/- 21.40 ind./m(2)), the latter mostly represented by Formicidae (49.2%). Arthropod biomass amounted to 8.86 g dry weight and 0.18 mg/m(2). Coleoptera, Blatto...
http://hdl.handle.net/11858/00-001M-0000-000F-D8FE-6
A diversificação de habitats e abundância de recursos encontrados sobre as espécies vegetais gera... more A diversificação de habitats e abundância de recursos encontrados sobre as espécies vegetais geram reservatórios de biodiversidade (SAMWAYS 1994; CHARLES & BASSET 2005), que, em muitos ecossistemas, podem ser estratificados do solo até as copas das árvores (BASSET 1992; RODGERS & KITCHING 1998; CHARLES & BASSEt 2005). A copa das arvores é um dos habitats que tem sido considerado importante para a manutenção e o incremento da riqueza de espécies, onde ocorre o acúmulo de matéria orgânica suspensa, colonizada por vários táxons associados, diretamente ou temporariamente, através de migrações verticais (KITCHING et al.1997; ROISIN et al. 2006; BATTIROLA et al. 2007).
Acta Amazonica, 2015
ABSTRACT Centopeias são predadores carnívoros oportunistas e grandes espécies podem se alimentar ... more ABSTRACT Centopeias são predadores carnívoros oportunistas e grandes espécies podem se alimentar de uma grande variedade de vertebrados, inclusive de morcegos. O objetivo desse trabalho é reportar o terceiro registro de predação de morcego por centopeia, e o primeiro para a região Amazônica, abrangendo aspectos do forrageamento, captura e manipulação da presa. O registro foi realizado de forma fortuita, no Parque Estadual do Cristalino, região de Floresta Amazônica, no estado de Mato Grosso, Brasil. O ataque ocorreu em uma estrutura de madeira a cerca de três metros de altura e foi observado por 20 minutos. Durante a observação, a centopeia picou várias vezes o pescoço e região abdominal do morcego, agarrando a presa com seus 15 pares de pernas anteriores e se pendurando ao teto com as pernas posteriores. Esse tipo de observação sugere que vertebrados podem ser importantes presas para invertebrados, como centopeias gigantes, tanto por sua composição nutricional quanto pela quantidade de energia disponível em uma única presa.
Ecological Studies, 2010
Thirty-one years ago T.L. Erwin, J. Adis and G.G. Montgomery obtained about 50,000 arthropods by ... more Thirty-one years ago T.L. Erwin, J. Adis and G.G. Montgomery obtained about 50,000 arthropods by fogging the canopy with natural pyrethrum along transects in four forest types of Central Amazonia. A first study of nearly 5,000 adult Coleoptera specimens indicated a low similarity of beetle species between forest types and a predominance of herbivores (Erwin 1983). This material has now been restudied to allow an ecological comparison in more detail.
Zoologia (Curitiba), 2009
In this study different sampling techniques for Diplopoda in soil, tree trunks and canopies were ... more In this study different sampling techniques for Diplopoda in soil, tree trunks and canopies were applied in an integrated way in the northern region of the Pantanal of Mato Grosso, Brazil. This was done in order to assess the relationship within the fauna in each forest strata, as well as its richness and temporal distribution. In all these habitats there were a total of 1,354 diplopods, distributed in four taxonomic orders, with Polyxenida being predominant over Polydesmida, Spirostreptida and Spirobolida. The largest representation was found on the trunks of the Vochysia divergens (721 ind.), intercepted by tree photoecletors, whereas in the canopies sampling reached only 65 specimens. In the edaphic stratum 568 diplopods were captured, most with the use of the Winkler extractor, followed by pitfall traps and soil photoecletors. In spite of being an important group in these environments, both in terms of richness and diversity, this was less than has been observed in other Neotropical areas. However, due to seasonal changes in the Pantanal the existence of a relationship between the soil and the tree fauna was found as well as different survival strategies observed during the flood period. Regarding vertical distribution, the greatest richness and variety of taxonomic groups was found in the forest's edaphic environment demonstrating its association mainly with this forest stratum.
Acta Biológica Paranaense, 2009
![Research paper thumbnail of [Arthropod community associated with the canopy of Attalea phalerata Mart. (Arecaceae) during the flood period of the Pantanal of Poconé, Mato Grosso, Brazil]](https://attachments.academia-assets.com/40070413/thumbnails/1.jpg)
](Neotropical entomology
Six trees of the palm species Attalea phalerata Mart. were sampled during high water (aquatic pha... more Six trees of the palm species Attalea phalerata Mart. were sampled during high water (aquatic phase) of the Pantanal of Mato Grosso (February 2001), by canopy fogging. The composition, structure, and biomass of the arthropod community associated with their canopies were analysed, as well as the influence the flood pulse renders on it. Each tree was fogged once, followed by three consecutive collections. A total of 63,657 arthropods (643.0 +/-; 259.87 ind./m(2)) were collected, representing 25 orders in the classes Insecta, Arachnida, Diplopoda and Crustacea. The dominant groups were Acari (40.0%; 257.2 +/- 116.50 ind./m(2)), Coleoptera (12.0%; 77.5 +/- 64.93 ind./m(2)), Psocoptera (9.2%; 59.0 +/- 38.00 ind./m(2)), Diptera (8.4%; 54.1 +/- 18.72 ind./m(2)), Collembola (8.3%; 53.4 +/- 26.24 ind./m(2)) and Hymenoptera (7.9%; 50.6 +/- 21.40 ind./m(2)), the latter mostly represented by Formicidae (49.2%). Arthropod biomass amounted to 8.86 g dry weight and 0.18 mg/m(2). Coleoptera, Blatto...
This study aims the registration of the association between Cerambycidae and Vochysia divergens P... more This study aims the registration of the association between Cerambycidae and Vochysia divergens Pohl (Vochysiaceae), typical plant species of the northern region of the Pantanal of Mato Grosso that besides forming monodominant stands and is considered a weed of fields and pastures in this region. In this study, branches and trunks of this specie were collected over one year (July/1999 - June/2000) and lab monitored for density and emergency time evaluation of Cerambycidae. As results 277 individuals were sampled, representing the species, Psapharochrus bivittis (White), Luscosmodicum beaveari Martins and Neoeme bouvieri Gounelle. In addition to registration of the association, it was noted that the emergence peak of Cerambycidae coincides with the beginning of flood and high water period in northern Pantanal, showing the synchronization between the biological development of this species and the hydrological cycle in this region.
EntomoBrasilis, 2014
As palmeiras correspondem a um importante elemento nos ecossistemas tropicais, servindo como font... more As palmeiras correspondem a um importante elemento nos ecossistemas tropicais, servindo como fonte alimentar e habitat para uma grande variedade de organismos invertebrados e vertebrados. Considerando o papel destas plantas como hospedeiras de diferentes espécies este estudo objetivou avaliar de maneira descritiva a composição, distribuição em guildas tróficas e a biomassa da comunidade de Coleoptera associada às copas de Attalea phalerata Mart. (Arecaceae) no Pantanal de Poconé, Mato Grosso. Ao todo foram amostrados seis indivíduos desta palmeira em fevereiro 2001, empregando-se a metodologia de termonebulização de copas. Obtiveram-se 7.670 indivíduos (77,5 ind./m²), sendo 5.044 adultos (65,7%; 50,9 ind./m²) e 2.626 larvas (34,3%; 26,5 ind./m²). Os adultos foram distribuídos em 43 famílias e 467 morfoespécies. As famílias mais representativas foram Endomychidae, Nitidulidae, Tenebrionidae, Staphylinidae e Curculionidae, correspondendo a 66,9% do total coletado. Dentre as guildas tróficas, saprófagos, fungívoros e herbívoros predominaram sobre predadores. A maior riqueza de espécies foi observada em Staphylinidae, Curculionidae, Tenebrionidae e Chrysomelidae. A maior biomassa foi registrada para Scarabaeidae e Tenebrionidae, seguidos por Nitidulidae e Curculionidae. Esses resultados indicam que a copa de A. phalerata é habitat para uma grande diversidade de Coleoptera, bem como local de reprodução, fato evidenciado pelo elevado número de larvas amostradas neste estudo.
Biota Neotropica, 2010
of ground Araneae (Arthropoda, Arachnida) in a seasonally flooded forest in the Northern region o... more of ground Araneae (Arthropoda, Arachnida) in a seasonally flooded forest in the Northern region of Pantanal of Mato Grosso, Brazil. Biota Neotrop.10(2): http://www.biotaneotropica.org.br/v10n2/en/abstract? inventory+bn00210022010.
Revista Brasileira de Entomologia, 2005
Composition of Formicidae community (Insecta, Hymenoptera) in the canopy of Attalea phalerata Mar... more Composition of Formicidae community (Insecta, Hymenoptera) in the canopy of Attalea phalerata Mart. (Arecaceae), in the Pantanal of Poconé, Mato Grosso, Brazil. Three individuals of the palm Attalea phalerata Mart.
Revista Brasileira de Entomologia, 2004
Ecological aspects of a community of Araneae (Arthropoda, Arachnida) at the canopy of the palm At... more Ecological aspects of a community of Araneae (Arthropoda, Arachnida) at the canopy of the palm Attalea phalerata Mart. (Arecaceae) in the Pantanal of Poconé, Mato Grosso, Brazil. Six palm trees of Attalea phalerata were sampled during the aquatic phase (high water) in the Pantanal of Mato Grosso (February 2001) using canopy fogging. The objective was to evaluate the composition, spatial distribution, behavioural guilds, biomass and seasonality of the community of Araneae at the crowns of these palm trees, which form monospecific stands that are typical of this region. A total of 1,326 spiders was collected in the 99 m 2 sampling area (13.4 + 8.2 individuals/m 2 ), representing 20 families, of which Salticidae and Araneidae were the most abundant. The total biomass of 704 spiders from three palm trees was 0.6172 mg dry weight (0.0123+ 0.04 mg/m 2 ). In terms of behaviour guilds, ten groups were found, demonstrating the coexistence of many different groups in the same habitat. Members of the Salticidae, Oonopidae and Ctenidae were the dominant hunters and members of Araneidae and Dictynidae, the dominant orb-weavers. Analysis of the spatial distribution showed that the greatest abundance of spiders occurred in the central region of the crown, which probably provided access to the large number of resources available there. A comparison of these results with the ones obtained in the terrestrial phase (low water) revealed a seasonal difference that is influenced by the flood pulse in which there was a difference in the composition of the families in the high and low water.
Revista Brasileira de Entomologia, 2010
Revista Brasileira de Entomologia 54(1): 91-95, março 2010
Revista Brasileira de Entomologia, 2006
Cornops aquaticum (Bruner) has Eichhornia crassipes, E. azurea, Pontederia cordata and P. lanceol... more Cornops aquaticum (Bruner) has Eichhornia crassipes, E. azurea, Pontederia cordata and P. lanceolata (Pontederiaceae) as the known host plants. This grasshopper species is cited as a possible agent of biological control for native aquatic macrophytes E. azurea and E. crassipes. This study, carried out from March, 2006 to February, 2007, aimed to evaluate the phenology and age structure of the population of C. aquaticum associated with E. azurea in Piuval bay, Pantanal of Poconé, MT, and to identify possible relationships of its life cycle to abiotic factors such as insolation, temperature and precipitation. Monthly collections of 50 individuals were carried out according to the protocol defi ned by the "Host -Insect Coevolution on Waterhyacinth" project. Adults and nymphs were separated and the females dissected in order to evaluate ovary maturation. The population presented adults and nymphs during the whole year, suggesting the occurrence of more than one reproductive period. The nymphs from the fi rst stage predominated in August 2006 and the adults in September and October 2006, synchronized with the dry period and beginning of the fl ooding period, respectively. The highest relative abundance of the females with mature ovaries occurred in July 2006 (50%), indicating that this may be a more propitious period for reproduction. The data suggest that C. aquaticum is a species in continual reproduction in Piuval bay and its cycle is associated with the environmental conditions guided by the fl ood pulse in the Pantanal of Mato Grosso.
Neotropical Entomology, 2007
Six trees of the palm species Attalea phalerata Mart. were sampled during high water (aquatic pha... more Six trees of the palm species Attalea phalerata Mart. were sampled during high water (aquatic phase) of the Pantanal of Mato Grosso (February 2001), by canopy fogging. The composition, structure, and biomass of the arthropod community associated with their canopies were analysed, as well collections. A total of 63,657 arthropods (643.0 ± 259.87 ind/m 2 ) were collected, representing 25 orders in the classes Insecta, Arachnida, Diplopoda and Crustacea. The dominant groups were Acari (40.0%; 257.2 ± 116.50 ind./m 2 ), Coleoptera (12.0%; 77.5 ± 64.93 ind./m 2 ), Psocoptera (9.2%; 59.0 ± 38.00 ind./m 2 ), Diptera (8.4%; 54.1 ± 18.72 ind./m 2 ), Collembola (8.3%; 53.4 ± 26.24 ind./m 2 ) and Hymenoptera (7.9%; 50.6 ± 21.40 ind./m 2 ), the latter mostly represented by Formicidae (49.2%). Arthropod biomass amounted to 8.86 g dry weight and 0.18 mg/m 2 . Coleoptera, Blattodea, Orthoptera, Araneae and Hymenoptera to strongly affect the composition and structure of this canopy community.
Neotropical Entomology
Six trees of the palm species Attalea phalerata Mart. were sampled during high water (aquatic pha... more Six trees of the palm species Attalea phalerata Mart. were sampled during high water (aquatic phase) of the Pantanal of Mato Grosso (February 2001), by canopy fogging. The composition, structure, and biomass of the arthropod community associated with their canopies were analysed, as well as the influence the flood pulse renders on it. Each tree was fogged once, followed by three consecutive collections. A total of 63,657 arthropods (643.0 +/-; 259.87 ind./m(2)) were collected, representing 25 orders in the classes Insecta, Arachnida, Diplopoda and Crustacea. The dominant groups were Acari (40.0%; 257.2 +/- 116.50 ind./m(2)), Coleoptera (12.0%; 77.5 +/- 64.93 ind./m(2)), Psocoptera (9.2%; 59.0 +/- 38.00 ind./m(2)), Diptera (8.4%; 54.1 +/- 18.72 ind./m(2)), Collembola (8.3%; 53.4 +/- 26.24 ind./m(2)) and Hymenoptera (7.9%; 50.6 +/- 21.40 ind./m(2)), the latter mostly represented by Formicidae (49.2%). Arthropod biomass amounted to 8.86 g dry weight and 0.18 mg/m(2). Coleoptera, Blatto...
http://hdl.handle.net/11858/00-001M-0000-000F-D8FE-6
A diversificação de habitats e abundância de recursos encontrados sobre as espécies vegetais gera... more A diversificação de habitats e abundância de recursos encontrados sobre as espécies vegetais geram reservatórios de biodiversidade (SAMWAYS 1994; CHARLES & BASSET 2005), que, em muitos ecossistemas, podem ser estratificados do solo até as copas das árvores (BASSET 1992; RODGERS & KITCHING 1998; CHARLES & BASSEt 2005). A copa das arvores é um dos habitats que tem sido considerado importante para a manutenção e o incremento da riqueza de espécies, onde ocorre o acúmulo de matéria orgânica suspensa, colonizada por vários táxons associados, diretamente ou temporariamente, através de migrações verticais (KITCHING et al.1997; ROISIN et al. 2006; BATTIROLA et al. 2007).
Acta Amazonica, 2015
ABSTRACT Centopeias são predadores carnívoros oportunistas e grandes espécies podem se alimentar ... more ABSTRACT Centopeias são predadores carnívoros oportunistas e grandes espécies podem se alimentar de uma grande variedade de vertebrados, inclusive de morcegos. O objetivo desse trabalho é reportar o terceiro registro de predação de morcego por centopeia, e o primeiro para a região Amazônica, abrangendo aspectos do forrageamento, captura e manipulação da presa. O registro foi realizado de forma fortuita, no Parque Estadual do Cristalino, região de Floresta Amazônica, no estado de Mato Grosso, Brasil. O ataque ocorreu em uma estrutura de madeira a cerca de três metros de altura e foi observado por 20 minutos. Durante a observação, a centopeia picou várias vezes o pescoço e região abdominal do morcego, agarrando a presa com seus 15 pares de pernas anteriores e se pendurando ao teto com as pernas posteriores. Esse tipo de observação sugere que vertebrados podem ser importantes presas para invertebrados, como centopeias gigantes, tanto por sua composição nutricional quanto pela quantidade de energia disponível em uma única presa.
Ecological Studies, 2010
Thirty-one years ago T.L. Erwin, J. Adis and G.G. Montgomery obtained about 50,000 arthropods by ... more Thirty-one years ago T.L. Erwin, J. Adis and G.G. Montgomery obtained about 50,000 arthropods by fogging the canopy with natural pyrethrum along transects in four forest types of Central Amazonia. A first study of nearly 5,000 adult Coleoptera specimens indicated a low similarity of beetle species between forest types and a predominance of herbivores (Erwin 1983). This material has now been restudied to allow an ecological comparison in more detail.
Zoologia (Curitiba), 2009
In this study different sampling techniques for Diplopoda in soil, tree trunks and canopies were ... more In this study different sampling techniques for Diplopoda in soil, tree trunks and canopies were applied in an integrated way in the northern region of the Pantanal of Mato Grosso, Brazil. This was done in order to assess the relationship within the fauna in each forest strata, as well as its richness and temporal distribution. In all these habitats there were a total of 1,354 diplopods, distributed in four taxonomic orders, with Polyxenida being predominant over Polydesmida, Spirostreptida and Spirobolida. The largest representation was found on the trunks of the Vochysia divergens (721 ind.), intercepted by tree photoecletors, whereas in the canopies sampling reached only 65 specimens. In the edaphic stratum 568 diplopods were captured, most with the use of the Winkler extractor, followed by pitfall traps and soil photoecletors. In spite of being an important group in these environments, both in terms of richness and diversity, this was less than has been observed in other Neotropical areas. However, due to seasonal changes in the Pantanal the existence of a relationship between the soil and the tree fauna was found as well as different survival strategies observed during the flood period. Regarding vertical distribution, the greatest richness and variety of taxonomic groups was found in the forest's edaphic environment demonstrating its association mainly with this forest stratum.
Acta Biológica Paranaense, 2009
Neotropical entomology
Six trees of the palm species Attalea phalerata Mart. were sampled during high water (aquatic pha... more Six trees of the palm species Attalea phalerata Mart. were sampled during high water (aquatic phase) of the Pantanal of Mato Grosso (February 2001), by canopy fogging. The composition, structure, and biomass of the arthropod community associated with their canopies were analysed, as well as the influence the flood pulse renders on it. Each tree was fogged once, followed by three consecutive collections. A total of 63,657 arthropods (643.0 +/-; 259.87 ind./m(2)) were collected, representing 25 orders in the classes Insecta, Arachnida, Diplopoda and Crustacea. The dominant groups were Acari (40.0%; 257.2 +/- 116.50 ind./m(2)), Coleoptera (12.0%; 77.5 +/- 64.93 ind./m(2)), Psocoptera (9.2%; 59.0 +/- 38.00 ind./m(2)), Diptera (8.4%; 54.1 +/- 18.72 ind./m(2)), Collembola (8.3%; 53.4 +/- 26.24 ind./m(2)) and Hymenoptera (7.9%; 50.6 +/- 21.40 ind./m(2)), the latter mostly represented by Formicidae (49.2%). Arthropod biomass amounted to 8.86 g dry weight and 0.18 mg/m(2). Coleoptera, Blatto...
This study aims the registration of the association between Cerambycidae and Vochysia divergens P... more This study aims the registration of the association between Cerambycidae and Vochysia divergens Pohl (Vochysiaceae), typical plant species of the northern region of the Pantanal of Mato Grosso that besides forming monodominant stands and is considered a weed of fields and pastures in this region. In this study, branches and trunks of this specie were collected over one year (July/1999 - June/2000) and lab monitored for density and emergency time evaluation of Cerambycidae. As results 277 individuals were sampled, representing the species, Psapharochrus bivittis (White), Luscosmodicum beaveari Martins and Neoeme bouvieri Gounelle. In addition to registration of the association, it was noted that the emergence peak of Cerambycidae coincides with the beginning of flood and high water period in northern Pantanal, showing the synchronization between the biological development of this species and the hydrological cycle in this region.
EntomoBrasilis, 2014
As palmeiras correspondem a um importante elemento nos ecossistemas tropicais, servindo como font... more As palmeiras correspondem a um importante elemento nos ecossistemas tropicais, servindo como fonte alimentar e habitat para uma grande variedade de organismos invertebrados e vertebrados. Considerando o papel destas plantas como hospedeiras de diferentes espécies este estudo objetivou avaliar de maneira descritiva a composição, distribuição em guildas tróficas e a biomassa da comunidade de Coleoptera associada às copas de Attalea phalerata Mart. (Arecaceae) no Pantanal de Poconé, Mato Grosso. Ao todo foram amostrados seis indivíduos desta palmeira em fevereiro 2001, empregando-se a metodologia de termonebulização de copas. Obtiveram-se 7.670 indivíduos (77,5 ind./m²), sendo 5.044 adultos (65,7%; 50,9 ind./m²) e 2.626 larvas (34,3%; 26,5 ind./m²). Os adultos foram distribuídos em 43 famílias e 467 morfoespécies. As famílias mais representativas foram Endomychidae, Nitidulidae, Tenebrionidae, Staphylinidae e Curculionidae, correspondendo a 66,9% do total coletado. Dentre as guildas tróficas, saprófagos, fungívoros e herbívoros predominaram sobre predadores. A maior riqueza de espécies foi observada em Staphylinidae, Curculionidae, Tenebrionidae e Chrysomelidae. A maior biomassa foi registrada para Scarabaeidae e Tenebrionidae, seguidos por Nitidulidae e Curculionidae. Esses resultados indicam que a copa de A. phalerata é habitat para uma grande diversidade de Coleoptera, bem como local de reprodução, fato evidenciado pelo elevado número de larvas amostradas neste estudo.
Biota Neotropica, 2010
of ground Araneae (Arthropoda, Arachnida) in a seasonally flooded forest in the Northern region o... more of ground Araneae (Arthropoda, Arachnida) in a seasonally flooded forest in the Northern region of Pantanal of Mato Grosso, Brazil. Biota Neotrop.10(2): http://www.biotaneotropica.org.br/v10n2/en/abstract? inventory+bn00210022010.
Revista Brasileira de Entomologia, 2005
Composition of Formicidae community (Insecta, Hymenoptera) in the canopy of Attalea phalerata Mar... more Composition of Formicidae community (Insecta, Hymenoptera) in the canopy of Attalea phalerata Mart. (Arecaceae), in the Pantanal of Poconé, Mato Grosso, Brazil. Three individuals of the palm Attalea phalerata Mart.
Revista Brasileira de Entomologia, 2004
Ecological aspects of a community of Araneae (Arthropoda, Arachnida) at the canopy of the palm At... more Ecological aspects of a community of Araneae (Arthropoda, Arachnida) at the canopy of the palm Attalea phalerata Mart. (Arecaceae) in the Pantanal of Poconé, Mato Grosso, Brazil. Six palm trees of Attalea phalerata were sampled during the aquatic phase (high water) in the Pantanal of Mato Grosso (February 2001) using canopy fogging. The objective was to evaluate the composition, spatial distribution, behavioural guilds, biomass and seasonality of the community of Araneae at the crowns of these palm trees, which form monospecific stands that are typical of this region. A total of 1,326 spiders was collected in the 99 m 2 sampling area (13.4 + 8.2 individuals/m 2 ), representing 20 families, of which Salticidae and Araneidae were the most abundant. The total biomass of 704 spiders from three palm trees was 0.6172 mg dry weight (0.0123+ 0.04 mg/m 2 ). In terms of behaviour guilds, ten groups were found, demonstrating the coexistence of many different groups in the same habitat. Members of the Salticidae, Oonopidae and Ctenidae were the dominant hunters and members of Araneidae and Dictynidae, the dominant orb-weavers. Analysis of the spatial distribution showed that the greatest abundance of spiders occurred in the central region of the crown, which probably provided access to the large number of resources available there. A comparison of these results with the ones obtained in the terrestrial phase (low water) revealed a seasonal difference that is influenced by the flood pulse in which there was a difference in the composition of the families in the high and low water.
Revista Brasileira de Entomologia, 2010
Revista Brasileira de Entomologia 54(1): 91-95, março 2010
Revista Brasileira de Entomologia, 2006
Cornops aquaticum (Bruner) has Eichhornia crassipes, E. azurea, Pontederia cordata and P. lanceol... more Cornops aquaticum (Bruner) has Eichhornia crassipes, E. azurea, Pontederia cordata and P. lanceolata (Pontederiaceae) as the known host plants. This grasshopper species is cited as a possible agent of biological control for native aquatic macrophytes E. azurea and E. crassipes. This study, carried out from March, 2006 to February, 2007, aimed to evaluate the phenology and age structure of the population of C. aquaticum associated with E. azurea in Piuval bay, Pantanal of Poconé, MT, and to identify possible relationships of its life cycle to abiotic factors such as insolation, temperature and precipitation. Monthly collections of 50 individuals were carried out according to the protocol defi ned by the "Host -Insect Coevolution on Waterhyacinth" project. Adults and nymphs were separated and the females dissected in order to evaluate ovary maturation. The population presented adults and nymphs during the whole year, suggesting the occurrence of more than one reproductive period. The nymphs from the fi rst stage predominated in August 2006 and the adults in September and October 2006, synchronized with the dry period and beginning of the fl ooding period, respectively. The highest relative abundance of the females with mature ovaries occurred in July 2006 (50%), indicating that this may be a more propitious period for reproduction. The data suggest that C. aquaticum is a species in continual reproduction in Piuval bay and its cycle is associated with the environmental conditions guided by the fl ood pulse in the Pantanal of Mato Grosso.
Neotropical Entomology, 2007
Six trees of the palm species Attalea phalerata Mart. were sampled during high water (aquatic pha... more Six trees of the palm species Attalea phalerata Mart. were sampled during high water (aquatic phase) of the Pantanal of Mato Grosso (February 2001), by canopy fogging. The composition, structure, and biomass of the arthropod community associated with their canopies were analysed, as well collections. A total of 63,657 arthropods (643.0 ± 259.87 ind/m 2 ) were collected, representing 25 orders in the classes Insecta, Arachnida, Diplopoda and Crustacea. The dominant groups were Acari (40.0%; 257.2 ± 116.50 ind./m 2 ), Coleoptera (12.0%; 77.5 ± 64.93 ind./m 2 ), Psocoptera (9.2%; 59.0 ± 38.00 ind./m 2 ), Diptera (8.4%; 54.1 ± 18.72 ind./m 2 ), Collembola (8.3%; 53.4 ± 26.24 ind./m 2 ) and Hymenoptera (7.9%; 50.6 ± 21.40 ind./m 2 ), the latter mostly represented by Formicidae (49.2%). Arthropod biomass amounted to 8.86 g dry weight and 0.18 mg/m 2 . Coleoptera, Blattodea, Orthoptera, Araneae and Hymenoptera to strongly affect the composition and structure of this canopy community.