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Discoveries of new mammal species and their
Discoveries of new mammal species and their

... grid cells, similar to our previous studies (10, 12, 13). The new mammal species we found were of three types. The first was morphologically distinct species found in previously poorly surveyed areas. The second, the result of using molecular genetic techniques, was discoveries that the geographic r ...
Consulta: creatorFacets:"Sazima,Ivan" Registros recuperados: 37
Consulta: creatorFacets:"Sazima,Ivan" Registros recuperados: 37

Aurelia aurita: the Moon Jelly
Aurelia aurita: the Moon Jelly

... are characterized by having a polyp and medusa stage, radial symmetry, planula larvae, cnidia, and tentacles around the mouth. Classified under the Class of Scyphozoa qualifies the species as a “true jelly,” that is primarily found in medusoid morphology, with asexual reproduction in the polyp stage ...
Disentangling direct and indirect effects of experimental grassland
Disentangling direct and indirect effects of experimental grassland

... richness, but a positive effect on leafhopper abundance. However, we did not observe any significant direct responses of leafhopper species richness, abundance or Shannon diversity (eH´) to fertilizer application, which are often described in the literature (e.g. [31]). As indicated by our structura ...
Plant invasions – the role of mutualisms
Plant invasions – the role of mutualisms

... understanding of invasions have come from careful studies of single invasion events, comparative studies (contrasting the behaviour of the same species under different conditions, or different species in the same area), and, most recently, from modelling studies (e.g. Higgins & Richardson, 1998). De ...
Network ecology: topological constraints on ecosystem dynamics
Network ecology: topological constraints on ecosystem dynamics

... is of particular interest, one can be an autecologist, a population ecologist, a community ecologist, a systems ecologist or a macroecologist. Although at each level, there are a number of entities whose interactions are to be studied, typically a couple of them are considered only (for simplicity o ...
Proposed Listing, Special 4(d) Rule, and Critical Habitat Bi
Proposed Listing, Special 4(d) Rule, and Critical Habitat Bi

... populations and sagebrush habitats that are ongoing (and expected to continue into the future) in many areas throughout the species’ range. Bi-State DPS of greater sage-grouse occur as small, local populations that are relatively isolated from each other. Small populations are inherently at greater ...
Tonkin Snub-nosed Monkey Conservation Project
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... world. Only one of the species, the Tonkin snub-nosed monkey, occurs in Vietnam, in the far north of the country. Three species are found in China and a new species, the Myanmar snub-nosed monkey, was discovered only in 2011 by Fauna & Flora International (FFI). ...
Symbiosis Activity
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... increased the total number of introduced seaweed species to 277. Using binomial tests we show that several algal families contain more successful invaders than would be expected by chance, highlighting groups that should be targeted for management. Hull-fouling and aquaculture are the most significan ...
Invasion in a heterogeneous world: resistance, coexistence or
Invasion in a heterogeneous world: resistance, coexistence or

... The next spatial scale larger than the interaction neighbourhood is the local metacommunity (Fig. 2). At this scale, dispersal between interaction neighbourhoods is relatively high. Once the invader is introduced, spread is more or less instantaneous within the local metacommunity. This is not to sa ...
SPECIAL SECTION Hunting and Plant Community Dynamics in
SPECIAL SECTION Hunting and Plant Community Dynamics in

... 2001, Wright 2003). Predispersal seed predators consume developing or mature seeds taken directly from the fruit-bearing plant. Browsers remove leaf tissue, which reduces plant carbon balance and often kills seedlings. The largest browsers can also break and uproot saplings and even trees. We are aw ...
Chelifer longimanus Kollar, 1848: a nomen nudum corresponding to
Chelifer longimanus Kollar, 1848: a nomen nudum corresponding to

... (1852, 1853)—he must have seen these specimens name in accordance with Article 11.6. However, we and may well have been responsible for their identi- do not think that this would be correct. There is an fication. Thus they provide an indirect confirmation ambiguity in Article 11.6.1, due to the unqu ...
Lundiana 5-2 Dezembro 2004
Lundiana 5-2 Dezembro 2004

... Programa de Pós-Graduação em Ecologia, Conservação e Manejo da Vida Silvestre, Instituto de Ciências Biológicas, UFMG. CP 486, 31270901, Belo Horizonte - MG, Brasil. E-mail: [email protected]. 2 Laboratório de Gestão de Reservatórios Tropicais, Departamento de Biologia Geral, Instituto de Ciência ...
Reprinted - RERO DOC
Reprinted - RERO DOC

... In this chapter, I will review the major steps in the development of the study of ecological networks. I will discuss some hypotheses on the underlying processes behind observed patterns in network structure. Before going into the history and state-of-the-art of this research theme, it is first nece ...
GEOGRAPHIC VARIATION IN POSITIVE AND NEGATIVE
GEOGRAPHIC VARIATION IN POSITIVE AND NEGATIVE

... 5 Present address: University of Delaware, Graduate College of Marine Studies, 700 Pilottown Road, Lewes, Delaware 19958 USA. ...
Crassostrea gigas, Pacific oyster - GB non
Crassostrea gigas, Pacific oyster - GB non

... habitats, some of which are protected under European law. In the Wadden Sea it has been suggested that these reefs could cause major shifts in benthic filter feeding populations, which could have detrimental knock-on effects on bird populations. ...
Vegetation succession in old fields at broad landscape scales
Vegetation succession in old fields at broad landscape scales

... comprehensive theory of plant succession. His scheme of the processes that drive succession contains the following basic phases: nudation, migration, ecesis, completion, reaction and stabilization (Glenn-Lewin et al. 1992). Important to the further development of successional theory were the first c ...
Great Basin naturalist memoirs
Great Basin naturalist memoirs

... predation and competition, have been advanced as the ultimate cause of the patterns. We outline the wav in which each of these factors could produce observed community-level patterns and review the evidence for the action of each factor. We conclude that the "competition" hypothesis has more support ...
Ant Community Dynamics and the Effects of Global Warming
Ant Community Dynamics and the Effects of Global Warming

... In chapter 4, I examined the potential for climatic warming to alter seed dispersal in eastern deciduous forests. I examined both overall and species-specific rates of seed removal with the expectation that the above-observed changes in rates of ant foraging activity would result in altered numbers ...
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Bifrenaria



Bifrenaria, abbreviated Bif. in horticultural trade, is a genus of plant in family Orchidaceae. It contains 20 species found in Panama, Trinidad and South America. There are no known uses for them, but their abundant, and at first glance artificial, flowers, make them favorites of orchid growers.The genus can be split in two clearly distinct groups: one of highly robust plants with large flowers, that encompass the first species to be classified under the genus Bifrenaria; other of more delicate plants with smaller flowers occasionally classified as Stenocoryne or Adipe. There are two additional species that are normally classified as Bifrenaria, but which molecular analysis indicate to belong to different orchid groups entirely. One is Bifrenaria grandis which is endemic to Bolívia and which is now placed in Lacaena, and Bifrenaria steyermarkii, an inhabitant of the northern Amazon Forest, which does not have an alternative classification.
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