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| Registros recuperados: 414 | |
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| Cavalcante,Danielle Viveiros; Silva,Bianca Bentes da; Martinelli-Lemos,Jussara Moretto. |
| The present study focused on the decapod fauna of the fluvial-estuarine environment of the Guajará Bay, in the Brazilian state of Pará, where specimens were collected monthly from six sites, from May 2006 to April 2007. A total of 6,793 specimens were captured, belonging to 11 species of crab and shrimp: eight palaemonids - Macrobrachium amazonicum (Heller, 1862), Macrobrachium surinamicum Holthuis, 1948, Macrobrachium carcinus (Linnaeus, 1758), Macrobrachium rosenbergii (De Man, 1879), Macrobrachium spp. 1-4 -, one portunid - Callinectes bocourti A. Milne-Edwards, 1879 -, and two trichodactylids - Sylviocarcinus devileii H. Milne-Edwards, 1853 and Sylviocarcinus pictus (Milne-Edwards, 1853). While no significant differences were found in the ecological... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Decapoda; Diversity; Estuary. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702012000300003 |
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| Trindade,Rose B. Rodrigues; Uchôa,Manoel A. |
| Species of fruit flies (Tephritidae) were surveyed in a transect of the Amazonian Rainforest in the district of Clevelândia do Norte, municipality of Oiapoque, state of Amapá, Brazil. This study describes the diversity of fruit fly species sampled inside this transect (2.2 linear km). Eleven McPhail traps were serviced weekly from June 2002 to June 2003. A total of 55 samples were obtained, totaling 125 specimens of Tephritidae. Anastrepha Schiner, 1868 was the most abundant and diverse genus, with 18 species caught. Two new species, A. oiapoquensis Norrbom & Uchôa, 2011 and A. siculigera Norrbom & Uchôa, 2011, were discovered in this survey. Anastrepha coronilli Carrejo & González, 1993 (n = 40) was the most abundant species. Six... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Anastrepha; Diversity; McPhail traps; Northern Brazil. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702011000500013 |
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| BAO-MING,GE; ZHEN-XING,LI; DAI-ZHEN,ZHANG; HUA-BIN,ZHANG; ZONG-TANG,LIU; CHUN-LIN,ZHOU; BO-PING,TANG. |
| We evaluated the diversity of soil macrofauna communities inhabiting urban green spaces in Yancheng City, an urbanizing city located east of China. In the end of April 2011, the taxonomic richness, abundance and composition of soil macrofauna communities were assessed and compared among five types of green space (poplar forest, rapeseed farm, grassland in park, lawn and nursery garden) and three depth layers in the soil, with taxonomic resolution attained at the order level. Taxonomic richness (orders) and abundance were significantly different among green spaces. Diversity indices (Margalef's taxonomic richness R and Shannon-Weaver diversity index H') were higher in poplar forest, grassland in park and nursery garden than in rapeseed farm and lawn.... |
| Tipo: Journal article |
Palavras-chave: China; Diversity; Soil layer; Urbanization; Yancheng City. |
| Ano: 2012 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-078X2012000200008 |
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| RAMÍREZ-GUTIÉRREZ,MARTÍN; TAPIA-GARCÍA,MARGARITO; RAMOS-SANTIAGO,EDUARDO; ULLOA,RAÚL. |
| San Agustín bay is one of the most important bays in the Huatulco National Park because it includes the broadest coral reef surface of this park, which supports a great diversity of fish species. The importance of the present work is that describes quantitatively, for first time, the fish assemblage of this reef area. Visual censuses were realized on transects, according to the coral reef size, on coral and rocky reefs, and coral rubble environments. 64 species, 46 genus and 29 families were registered. Seasonal variation in fish assemblage was observed; reflecting the influence of pelagic shoaling species associated with the Gulf of Tehuantepec upwelling, during the dry season. Thus species were Selar crumenophthalmus, Caranx caninus, and Sardinops... |
| Tipo: Journal article |
Palavras-chave: Huatulco National Park; Coral reef; Diversity; Density; Community. |
| Ano: 2007 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-078X2007000400003 |
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| Laurito,Magdalena; Visintin,Andrés M.; Lorenzo,Pablo R.; Berrón,Clara I.; Diez,Natalia; Almirón,Walter R.. |
| The geographical distribution of Culex acharistus, C. bidens, C. chidesteri, C. dolosus, C. interfor, C. maxi, C. saltanensis and Ochlerotatus scapularis is extended, increasing the number of mosquito species in the provinces of Catamarca, from 14 to 20, and Santa Fe, from 57 to 59. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Culex; Ochlerotatus; Distribution; Diversity. |
| Ano: 2013 |
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0373-56802013000200009 |
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| Dellapé,Gimena. |
| A synopsis of the Argentinean Acanthosomatidae, including a key to genera, new distributional data and host plant records, and complementary information is provided. The tribe Blaudusini is recorded for the first time from Argentina. Currently, the family Acanthosomatidae is represented in Argentina by two subfamilies, three tribes, 14 genera, and 20 species. Most of the species are found in the Andean Patagonia, associated with native trees and shrubs from southern South America, such as Nothofagus Blume and Luma A. Gray, and with several species of berries. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Pentatomoidea; Blaudusini; Diversity; Patagonia. |
| Ano: 2016 |
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0373-56802016000100006 |
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| Dufek,Matias I.; Oscherov,Elena B.; Mulieri,Pablo R.. |
| This is the first study dealing with the diversity and distribution of Calliphoridae and Sarcophagidae (Diptera) inhabiting the province of Corrientes, Argentina. The work was based on samplings at different locations within the Iberá Marshes and Mburucuyá National Park, bibliographic records, and the examination of materials deposited in several entomological collections. Seventeen species of Calliphoridae and 27 of Sarcophagidae were listed. Twenty five species are recorded for the first time from Corrientes. Four species, Argoravinia brasiliana (Lopes, 1988), Chrysomya putoria (Wiedemann, 1830), Oxyvinia excisa (Lopes, 1950) and Peckia (Euboettcheria) pascoensis (Lopes, 1990), are cited for the first time in Argentina. A list of species recorded with... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Calyptratae; Diversity; Forensic entomology; New records; Oestroidea. |
| Ano: 2015 |
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0373-56802015000100004 |
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| Castro,Domingos Augusto Mendonça; Costa,Tatiana Santos; Cardoso,Ariane Santos; Ramos,Helaine Christine Cancela; López,Jorge Alberto; Diniz,Leandro Eugenio Cardamone. |
| ABSTRACT Buriti (Mauritia flexuosa L.f), a palm tree native to South America and widely distributed in Brazil, displays significant ecological, economic and biotechnological importance. However, the disorderly extractivism and environmental degradation of its endemic areas are leading to reductions in, and/or extinction of the buriti palm tree, causing ecological imbalance with significant economic losses for rural communities and genetic diversity. Consequently, populational genetic diversity studies have become relevant as a strategy for conserving the species. Therefore, this study evaluated the genetic structure of 10 populations from the Lençóis Maranhenses region, in the state of Maranhão, Brazil, using microsatellite markers. Results indicated that... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Buriti; SSR; Preservation; Diversity; Variability. |
| Ano: 2022 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162022000101101 |
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| Moreira,Milene; Baretta,Dilmar; Tsai,Siu Mui; Gomes-da-Costa,Sandra Maria; Cardoso,Elke Jurandy Bran Nogueira. |
| Araucaria angustifolia (Bert.) O. Ktze. is an endangered Brazilian coniferous tree that has been almost exterminated in the native areas because of uncontrolled wood exploitation. This tree has been shown to be highly dependent on arbuscular mycorrhizal fungi (AMF) and, therefore, AMF may be essential for forest sustainability and biological diversity. Root colonization, density and diversity of AMF spores were assessed in two Araucaria forest stands at the State Park of Alto Ribeira (PETAR), at two sampling dates: May and October. A comparison was made between a mature native stand composed of Araucaria trees mixed into a variety of tropical trees and shrubs, without any sign of anthropogenic interference (FN) and an Araucaria stand planted in 1987 (R),... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Brazilian Pine; Diversity; Spore density; Root colonization; Multivariate analysis. |
| Ano: 2007 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162007000400010 |
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| Moreira,Milene; Baretta,Dilmar; Tsai,Siu Mui; Cardoso,Elke Jurandy Bran Nogueira. |
| Araucaria angustifolia is an important Brazilian conifer, but it is endangered of extinction due to excessive logging. The objective of the present case study was to survey data on the diversity of AMF in Araucaria angustifolia forests, and to learn whether it is possible to discriminate between the AMF communities associated with natural, introduced, and impacted-by-anthropogenic-action ecosystems. Three ecosystems representative of the Campos do Jordão (São Paulo State, Brazil) region were selected, as follows: (i) a native climax forest, with predominance of Araucaria trees, without anthropogenic interference (NF), (ii) Araucaria forest introduced in 1959 (RE), and (iii) Araucaria forest introduced in 1958, submitted to accidental fire in July 2001... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: AMF; Brazil Pine; Diversity; Spore density; Accidental fire. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162009000500013 |
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| Zagatto,Maurício Rumenos Guidetti; Zanão Júnior,Luiz Antônio; Pereira,Arthur Prudêncio de Araújo; Estrada-Bonilla,German; Cardoso,Elke Jurandy Bran Nogueira. |
| ABSTRACT: Soil mesofauna consists of small invertebrates that live in the soil or litter and are sensitive to climatic conditions, management systems, plant cover and physical or chemical soil attributes. These organisms are active in the cycling of nutrients, since they fragment the organic matter hereby accelerating microbial decomposition. The aim of this study was to evaluate the invertebrate community in no-tillage, conventional tillage, minimum tillage and secondary forest in regeneration to determine the relationship of mesofauna to litter, soil attributes, management and seasonality. Therefore, ten soil samples in each system and eight litter samples in no-tillage and the forest were taken over four seasons. These samples remained in Berlese... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Diversity; No-tillage; Multivariate analysis; Fauna density; Mites. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162019001200165 |
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| Machado,Andressa Cristina Zamboni; Zagatto,Maurício Rumenos Guidetti; Skora Neto,Francisco; Silva,Santino Aleandro da; Zanão Júnior,Luiz Antonio. |
| ABSTRACT The analysis of nematode communities allows inferring consequences of management practices on the soil food web. We studied the taxonomic structure of nematode communities in preserved areas of the Atlantic forest (native forest = NF) in Ponta Grossa, Paraná State, Brazil, and in three different agroecosystems in neighboring areas to assess the effect of agricultural land use on nematode assemblages. Agroecosystems were located in a red latosol cropped during 30 years under conventional tillage (CT), no-tillage (NT), and minimal tillage (MT). We collected ten composite soil samples in each area in the summer. Nematodes were extracted by Baermann funnel and fixed with formalin. Subsequently, individuals were classified into taxonomic groups and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Abundance; Diversity; Taxonomic structure; Soil indicators. |
| Ano: 2022 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162022000100701 |
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| Patchai Souksai; Yupa Hanboonsong. |
| The research studies an arthropod community in upland rice ecosystem at farmers’ field in Ban Had District, Khon Kaen Province, Northeast Thailand, was conducted during May to October 2011. Samples were collected using light traps, yellow sticky traps, sweep nets and visual observation methods. A total of 7,195 individual arthropods from 160 species were recorded in this study. Among the sampling methods, 140 species were recorded using light trap, followed by 108, 58 and 30 species collected by using yellow sticky trap, sweep net and visual observation, respectively. The arthropod community of this studies constituted of four guilds as phytophagous, predator, parasitoid and scavenger. The predator (60.93 % of total individuals and 47.17% of total species)... |
| Tipo: PhysicalObject |
Palavras-chave: Arthropods; Upland rice ecosystem; Community structure; Diversity; Rice growth; Pest control program; Ban Had district; Khon Kaen province; Northeast; สัตว์ไม่มีกระดูกสันหลัง; ระบบนิเวศข้าวไร่; โครงสร้างประชากร; อนุกรมวิธาน; ความหลากหลาย; จ.ขอนแก่น. |
| Ano: 2013 |
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/5794 |
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| Valério,Henrique M.; Casela,Carlos R.; Resende,Maria A.; Santos,Fredolino G.. |
| This paper reports partial results obtained on the variability of Colletotrichum graminicola developed in response to the host diversity generated by three-line combination of sorghum (Sorghum bicolor) genotypes. Nine sorghum lines were used in this study: CMSXS210B, CMSXS112B, CMSXS215B, CMSXS221B, CMSXS169R, CMSXS180R, CMSXS182R, CMSXS227R, and CMSXS116R. A total of 39 treatments on mixtures and pure stands of the component lines were evaluated in the field for the development of anthracnose, as a natural epidemic. Samples of the single spore isolates of the pathogen of each treatment indicated a reduction in the phenotypic diversity and an increase in the frequency of more complex races in genotype mixtures in relation to the pure stands of each genotype. |
| Tipo: Info:eu-repo/semantics/report |
Palavras-chave: Sorghum bicolor; Diseases; Virulence; Diversity. |
| Ano: 2004 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-41582004000500019 |
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| Registros recuperados: 414 | |
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