10 research outputs found

    The travels of Joseph Beal Steere in Brazil, Peru and Ecuador (1870-1873)

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    Joseph Beal Steere (1842-1940) was sent by the University of Michigan in a trip around the world, from 1870 (September) to 1875, to collect materials in all departments of natural and human sciences for the University's Museum. He went from New York to Brazil (São Luís, Maranhão), proceeding up the Amazon, and spent about eighteen months on that river and some of its tributaries. Arrived at the head of navigation of the Amazon, at the mouth of the Río Santiago (Peru), he floated back two hundred miles on a raft, to reach the mouth of the Huallaga. He ascended this river to Yurimaguas, going thence across the Andes. He made part of the journey on foot and horseback; on the way he spent some time in the old cities of Moyobamba, Chachapoyas and Cajamarca. He struck the sea-coast at a town called Huanchaco, near the city of Trujillo; thence he went to Lima; and from there to Guayaquil; and thence, overland, to Quito, continually adding to his store of specimens. While at Quito, he ascended the volcano Pichincha and went to the bottom of the crater. He returned from Quito to Lima and made an excursion along the coast of Peru, collecting old Peruvian pottery from graves, etc. From Lima he went to Cerro de Pasco mining regions, making collections of minerals. Returning to Lima, he crossed the Pacific in a ship bound for Macao, China. From Macao he jouneyed successively to Hong Kong and Canton; from Canton to the Island of Formosa, where he spent six or eight months making journeys among the savages of the interior. From Formosa he went, via Hong Kong and Canton, to the Philippine Islands, and spent ten months there; he visited several places never before visited by naturalists, and found forty new species of birds. From the Philippines he went to Singapore, thence to Malacca, and made a trip through the Dutch Moluccas, touching at several places in the islands of Java, Macassar, Amboina and Ternate. From these islands he returned to Singapore, and from there, via Suez Canal and the Mediterranean, to Marseilles, stopping at Naples. He went through France by rail and via London and Liverpool went home, after an absence of little more than three years. Periodically he wrote letters telling of his adventures and impressions, with notes on the regions visited, to a weekly magazine edited in Ann Arbor, the Peninsular Courier and Family Visitant, where they were published. The 62 letters written by Steere in South America (Brazil, Peru and Ecuador) are here transcribed and commented.Joseph Beal Steere (1842-1940) foi enviado pela Universidade de Michigan numa viagem ao redor do mundo, de 1870 (setembro) até 1875, para coletar espécimes em todas as áreas das ciências naturais e humanas para o Museu da Universidade. De Nova Iorque embarcou para o Brasil (São Luís, Maranhão), subindo depois o rio Amazonas e permaneceu 18 meses nesse rio e alguns de seus afluentes. Chegado ao término da navegação do Amazonas, na boca do rio Santiago (Peru), desceu numa balsa, por duzentas milhas, para chegar à boca do Huallaga. Subiu este rio até Yurimaguas, de onde atravessou os Andes. Parte da viagem foi feita a pé ou a cavalo, e no caminho passou algum tempo nas antigas cidades de Moyobamba, Chachapoyas e Cajamarca. Atingiu a costa em uma cidade chamada Huanchaco, perto da cidade de Trujillo, e daí foi para Lima, depois para Guayaquil, e, por terra, a Quito, sempre coletando. Em Quito subiu o vulcão Pichincha e foi até o fundo de sua cratera. De volta a Quito e Lima fez uma excursão pela costa do Peru, coletando antiga cerâmica peruana em túmulos etc. De Lima foi à região mineira de Cerro de Pasco, para coletar minerais. Finalmente, partiu da capital peruana e cruzou o Pacífico num navio que se dirigia a Macau, na China. De Macau viajou sucessivamente a Hong Kong e Cantão, de Cantão à ilha de Formosa, onde permaneceu de seis a oito meses fazendo viagens entre os selvagens do interior. De Formosa, via Hong Kong e Cantão, foi para as Filipinas, onde passou dez meses, visitando muitos lugares nunca antes visitados por naturalistas e encontrou quarenta espécies novas de aves. Das Filipinas foi a Cingapura, daí para Malaca, e viajou pelas Molucas Holandesas, parando em lugares como Java, Macassar, Amboina e Ternate. Dessas ilhas regressou a Cingapura e dali, via o Canal de Suez e o Mediterrâneo, foi a Marselha, com uma escala em Nápoles. Cruzando a França por trem, chegou a Londres e de Liverpool voltou para os Estados Unidos, depois de uma ausência de pouco mais de três anos. Periodicamente escrevia cartas narrando suas aventuras e impressões, com notas sobre as regiões visitadas, ao Peninsular Courier and Family Visitant, uma revista semanal editada em Ann Arbor, onde eram publicadas. As 62 cartas escritas por Steere na América do Sul (Brasil, Peru e Equador) são transcritas abaixo, com comentários

    BIOFRAG: A new database for analysing BIOdiversity responses to forest FRAGmentation

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    Habitat fragmentation studies are producing inconsistent and complex results across which it is nearly impossible to synthesise. Consistent analytical techniques can be applied to primary datasets, if stored in a flexible database that allows simple data retrieval for subsequent analyses. Method: We developed a relational database linking data collected in the field to taxonomic nomenclature, spatial and temporal plot attributes and further environmental variables (e.g. information on biogeographic region. Typical field assessments include measures of biological variables (e.g. presence, abundance, ground cover) of one species or a set of species linked to a set of plots in fragments of a forested landscape. Conclusion: The database currently holds records of 5792 unique species sampled in 52 landscapes in six of eight biogeographic regions: mammals 173, birds 1101, herpetofauna 284, insects 2317, other arthropods: 48, plants 1804, snails 65. Most species are found in one or two landscapes, but some are found in four. Using the huge amount of primary data on biodiversity response to fragmentation becomes increasingly important as anthropogenic pressures from high population growth and land demands are increasing. This database can be queried to extract data for subsequent analyses of the biological response to forest fragmentation with new metrics that can integrate across the components of fragmented landscapes. Meta-analyses of findings based on consistent methods and metrics will be able to generalise over studies allowing inter-comparisons for unified answers. The database can thus help researchers in providing findings for analyses of trade-offs between land use benefits and impacts on biodiversity and to track performance of management for biodiversity conservation in human-modified landscapes.Fil: Pfeifer, Marion. Imperial College London; Reino UnidoFil: Lefebvre, Veronique. Imperial College London; Reino UnidoFil: Gardner, Toby A.. Stockholm Environment Institute; SueciaFil: Arroyo Rodríguez, Víctor. Universidad Nacional Autónoma de México; MéxicoFil: Baeten, Lander. University of Ghent; BélgicaFil: Banks Leite, Cristina. Imperial College London; Reino UnidoFil: Barlow, Jos. Lancaster University; Reino UnidoFil: Betts, Matthew G.. State University of Oregon; Estados UnidosFil: Brunet, Joerg. Swedish University of Agricultural Sciences; SueciaFil: Cerezo Blandón, Alexis Mauricio. Universidad de Buenos Aires. Facultad de Agronomía. Departamento de Métodos Cuantitativos y Sistemas de Información; ArgentinaFil: Cisneros, Laura M.. University of Connecticut; Estados UnidosFil: Collard, Stuart. Nature Conservation Society of South Australia; AustraliaFil: D´Cruze, Neil. The World Society for the Protection of Animals; Reino UnidoFil: Da Silva Motta, Catarina. Ministério da Ciência, Tecnologia, Inovações. Instituto Nacional de Pesquisas da Amazônia; BrasilFil: Duguay, Stephanie. Carleton University; CanadáFil: Eggermont, Hilde. University of Ghent; BélgicaFil: Eigenbrod, Félix. University of Southampton; Reino UnidoFil: Hadley, Adam S.. State University of Oregon; Estados UnidosFil: Hanson, Thor R.. No especifíca;Fil: Hawes, Joseph E.. University of East Anglia; Reino UnidoFil: Heartsill Scalley, Tamara. United State Department of Agriculture. Forestry Service; Puerto RicoFil: Klingbeil, Brian T.. University of Connecticut; Estados UnidosFil: Kolb, Annette. Universitat Bremen; AlemaniaFil: Kormann, Urs. Universität Göttingen; AlemaniaFil: Kumar, Sunil. State University of Colorado - Fort Collins; Estados UnidosFil: Lachat, Thibault. Swiss Federal Institute for Forest; SuizaFil: Lakeman Fraser, Poppy. Imperial College London; Reino UnidoFil: Lantschner, María Victoria. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca; Argentina. Instituto Nacional de Tecnología Agropecuaria. Centro Regional Patagonia Norte. Estación Experimental Agropecuaria San Carlos de Bariloche; ArgentinaFil: Laurance, William F.. James Cook University; AustraliaFil: Leal, Inara R.. Universidade Federal de Pernambuco; BrasilFil: Lens, Luc. University of Ghent; BélgicaFil: Marsh, Charles J.. University of Leeds; Reino UnidoFil: Medina Rangel, Guido F.. Universidad Nacional de Colombia; ColombiaFil: Melles, Stephanie. University of Toronto; CanadáFil: Mezger, Dirk. Field Museum of Natural History; Estados UnidosFil: Oldekop, Johan A.. University of Sheffield; Reino UnidoFil: Overal , Williams L.. Museu Paraense Emílio Goeldi. Departamento de Entomologia; BrasilFil: Owen, Charlotte. Imperial College London; Reino UnidoFil: Peres, Carlos A.. University of East Anglia; Reino UnidoFil: Phalan, Ben. University of Southampton; Reino UnidoFil: Pidgeon, Anna Michle. University of Wisconsin; Estados UnidosFil: Pilia, Oriana. Imperial College London; Reino UnidoFil: Possingham, Hugh P.. Imperial College London; Reino Unido. The University Of Queensland; AustraliaFil: Possingham, Max L.. No especifíca;Fil: Raheem, Dinarzarde C.. Royal Belgian Institute of Natural Sciences; Bélgica. Natural History Museum; Reino UnidoFil: Ribeiro, Danilo B.. Universidade Federal do Mato Grosso do Sul; BrasilFil: Ribeiro Neto, Jose D.. Universidade Federal de Pernambuco; BrasilFil: Robinson, Douglas W.. State University of Oregon; Estados UnidosFil: Robinson, Richard. Manjimup Research Centre; AustraliaFil: Rytwinski, Trina. Carleton University; CanadáFil: Scherber, Christoph. Universität Göttingen; AlemaniaFil: Slade, Eleanor M.. University of Oxford; Reino UnidoFil: Somarriba, Eduardo. Centro Agronómico Tropical de Investigación y Enseñanza; Costa RicaFil: Stouffer, Philip C.. State University of Louisiana; Estados UnidosFil: Struebig, Matthew J.. University of Kent; Reino UnidoFil: Tylianakis, Jason M.. University College London; Estados Unidos. Imperial College London; Reino UnidoFil: Teja, Tscharntke. Universität Göttingen; AlemaniaFil: Tyre, Andrew J.. Universidad de Nebraska - Lincoln; Estados UnidosFil: Urbina Cardona, Jose N.. Pontificia Universidad Javeriana; ColombiaFil: Vasconcelos, Heraldo L.. Universidade Federal de Uberlandia; BrasilFil: Wearn, Oliver. Imperial College London; Reino Unido. The Zoological Society of London; Reino UnidoFil: Wells, Konstans. University of Adelaide; AustraliaFil: Willig, Michael R.. University of Connecticut; Estados UnidosFil: Wood, Eric. University of Wisconsin; Estados UnidosFil: Young, Richard P.. Durrell Wildlife Conservation Trust; Reino UnidoFil: Bradley, Andrew V.. Imperial College London; Reino UnidoFil: Ewers, Robert M.. Imperial College London; Reino Unid

    BIOFRAG - a new database for analyzing BIOdiversity responses to forest FRAGmentation

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    Peer reviewe

    Host-relations of the Batfly Megistopoda aranea (Diptera: Streblidae) in Panam\ue1

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    Volume: 52Start Page: 1End Page: 2

    Venom and Task Specialization in Termitopone commutata (Hymenoptera: Formicidae)

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    Volume: 18Start Page: 361End Page: 36

    Diversity and composition of Amazonian moths in primary, secondary and plantation forests.

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    The response of tropical fauna to landscape-level habitat change is poorly understood. Increased conversion of native primary forest to alternative land-uses, including secondary forest and exotic tree plantations, highlights the importance of assessing diversity patterns within these forest types. We sampled 1848 moths from 335 species of Arctiidae, Saturniidae and Sphingidae, over a total of 30 trap-nights. Sampling was conducted during the wet season 2005, using three light-traps at 15 sites within areas of primary forest, secondary forest and Eucalyptus urograndis plantations in northern Brazilian Amazonia. The Jari study region provides one of the best opportunities to investigate the ecological consequences of land-use change, and this study is one of the first to examine patterns of diversity for a neotropical moth assemblage in a human-dominated landscape in lowland Amazonia. We found that the three moth families responded consistently to disturbance in terms of abundance and community structure but variably in terms of species richness, in a manner apparently supporting a life-history hypothesis. Our results suggest that secondary forests and Eucalyptus plantations can support a substantial level of moth diversity but also show that these forest types hold assemblages with significantly distinct community structures and composition from primary forest. In addition, the ability of these converted land-uses to support primary forest species may be enhanced by proximity to surrounding primary forest, an issue which requires consideration when assessing the diversity and composition of mobile taxa in human-dominated landscapes

    Spatial analysis of the distribution of Spodoptera frugiperda (J.E. Smith) (Lepidoptera: Noctuidae) and losses in maize crop productivity using geostatistics

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    A lagarta-do-cartucho, Spodoptera frugiperda (J.E. Smith), é uma das principais pragas do milho nas Américas. O estudo de sua distribuição espacial é fundamental para a utilização de estratégias de controle, otimização de técnicas de amostragens, determinação de danos econômicos e incorporação de um programa de agricultura de precisão. em uma área cultivada com milho foram realizadas amostragens com intervalo semanal, correspondendo ao estádio vegetativo que compreende desde a germinação até o pendoamento. Foram amostradas 10 plantas ao acaso por parcela, no total de 2000 plantas em cada amostragem. A produtividade foi obtida através da colheita de todas as parcelas que eram pesadas separadamente no campo e em cada parcela foram coletadas 15 espigas aleatoriamente para estimar o comprimento e o diâmetro médio. As análises espaciais, utilizando geoestatística, mostraram que o modelo esférico apresentou o melhor ajuste às lagartas pequenas. À medida que as lagartas foram se desenvolvendo sua distribuição foi tornando aleatória, representada por um modelo ajustado por uma reta, não tendo sido detectado nenhum tipo de dependência espacial nos pontos de amostragem. A produtividade e o diâmetro e comprimento da espiga foram descritos por modelos esféricos, indicando uma variabilidade espacial nos parâmetros de produtividade na área cultivada. A geoestatística mostrou-se promissora para a aplicação de métodos precisos no controle integrado de pragas.The fall armyworm, Spodoptera frugiperda (J.E. Smith), is one of the chief pests of maize in the Americas. The study of its spatial distribution is fundamental for designing correct control strategies, improving sampling methods, determining actual and potential crop losses, and adopting precise agricultural techniques. In São Paulo state, Brazil, a maize field was sampled at weekly intervals, from germination through harvest, for caterpillar densities, using quadrates. In each of 200 quadrates, 10 plants were sampled per week. Harvest weights were obtained in the field for each quadrate, and ear diameters and lengths were also sampled (15 ears per quadrate) and used to estimate potential productivity of the quadrate. Geostatistical analyses of caterpillar densities showed greatest ranges for small caterpillars when semivariograms were adjusted for a spherical model that showed greatest fit. As the caterpillars developed in the field, their spatial distribution became increasingly random, as shown by a model adjusted to a straight line, indicating a lack of spatial dependence among samples. Harvest weight and ear length followed the spherical model, indicating the existence of spatial variability of the production parameters in the maize field. Geostatistics shows promise for the application of precise methods in the integrated control of pests

    Diversity and composition of fruit-feeding butterflies in tropical Eucalyptus plantations.

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    Production landscapes are rarely considered as priority areas for biodiversity conservation in the tropics. Tree plantations have the potential to provide a conservation service in much of the humid tropics since they are rapidly increasing in extent and present less of a structural contrast with native vegetation than many more intensive agricultural land-uses. We used hierarchical partitioning to examine the factors that influence the value of large-scale Eucalyptus plantations for tropical fruit-feeding butterflies (Lepidoptera: Nymphalidae) in the Brazilian Amazon. We focused on evaluating the importance of landscape versus stand-level factors in determining the diversity and composition of butterfly assemblages, and how butterfly-environment relationships vary within and between subfamilies of Nymphalidae. Native understorey vegetation richness had the strongest independent effect on the richness, abundance and composition of all fruit-feeding butterflies, as well as a subset of species that had been recorded in nearby primary forests. However, overall patterns were strongly influenced by the most abundant subfamily (Satyrinae), and vegetation richness was not related to the abundance of any other subfamily, or non-Satyrinae species, highlighting the importance of disaggregating the fruit-feeding Nymphalidae when examining butterfly-environment relationships. Our results suggest that plantations can help conserve a limited number of forest species, and serve to highlight the research that is necessary to understand better the relationship between fruit-feeding butterflies and environmental variables that are amenable to management
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