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| Magnusson,William E.; Lima,Albertina P.; Luizão,Regina; Luizão,Flávio; Costa,Flávia R. C.; Castilho,Carolina Volkmer de; Kinupp,V. F.. |
| Our objectives were to develop a method that would be appropriate for long-term ecological studies, but that would permit rapid surveys to evaluate biotic complementarity and land-use planning in Amazonia. The Amazon basin covers about 7 million km². Therefore, even a sparse coverage, with one sample site per 10.000 km², would require about 700 sampling sites. Financial considerations limit the number of sites and investment at each site, but incomplete coverage makes evaluation of biotic complementarity difficult or impossible (Reddy & Dávalos 2003). Our next challenge is to install similar systems throughout Amazonia. The cost, based on modification of Al Gentry's original design is moderate (less than US$ 50.000 per site if it is not necessary... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Tropical forest; Inventory; Plot size; Plot shape; Biotic complementarity; Survey; Land-use planning. |
| Ano: 2005 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032005000300002 |
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| Pontes-da-Silva,Emerson; Lima,Albertina P.; Simões,Pedro I.. |
| ABSTRACT The brilliant-thighed frog [Allobates femoralis (Boulenger, 1884)]; is distributed across the Amazon basin and aggregates several allopatric evolutionary lineages, some of which present variation in their advertisement calls. In 2009, an unregistered call phenotype was discovered in the region of Altamira and Vitória do Xingu, State of Pará, Brazil, where males emit advertisement calls formed by six notes, differing from the typical four-note calls described for other A. femoralis populations. In this study, we describe in detail these untypical calls. Additionally, we test whether the aggressive responses of males of a 4-note reference population (Reserva Ducke - RFAD, in Manaus, State of Amazonas) is differential towards the 6-note calls of... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Advertisement calls; Dendrobatoidea; Playbacks; Belo Monte dam; Territorial behavior. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212017000100228 |
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| Magnusson,William E.; Lima,Albertina P.; Albernaz,Ana L.K.M.; Sanaiotti,Tânia M.; Guillaumet,Jean-Louis. |
| Neste estudo foi determinado a cobertura vegetal e a composição florística em 38 parcelas de 3,75 ha (250 m x 150 m), distribuídas por 30.000 ha na savana de Alter do Chão, Município de Santarém, Pará. Nas 38 parcelas foram registradas 130 espécies em 45 famílias. As únicas espécies de dicotiledôneas que cobriram 1% ou mais da área no estrato herbáceo-arbustivo foram Dioclea bicolor Benth. e Lafoensia pacari A. St.-Hil. A maior parte da área foi coberta pelas gramíneas Paspalum carinatum Humb. & Bonpl. ex Flügge (16%) e Trachypogon plumosus (Humb. & Bonpl. ex Willd.) Nees (22%). A gramínea Axonopus canescens (Nees ex Trin.) Pilg. e a ciperácea Rhyncospora hirsuta Vahl também cobriram mais que 1% da área. Apenas oito espécies, Anacardium... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Amazônia; Cobertura arbórea; Cobertura de ciperáceas; Cobertura herbácea-arbustiva; Cobertura de gramíneas. |
| Ano: 2008 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-84042008000100015 |
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