Fundamentos de limnología neotropical. by Gabriel Roldán Pérez; John Jairo Ramírez Restrepo. Print book: State or province government publication. Spanish. FUNDAMENTOS DE LIMNOLOGIA NEOTROPICAL 2 EDICION by Gabriel y otro Roldan Perez at – ISBN X – ISBN Fundamentos de Limnología Neotropical – Download as PDF File .pdf), Text File .txt) or read online.
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In fact, high scientific production is associated with economic development May, This is not a surprise, since this is the country with more scientific expression worldwide Hermes-Lima et al. Accordingly, excessive growth of aquatic plants in reservoirs has been extensively reported Thomaz et al.
Services on Demand Journal. Since some abstracts did not provide all information, the number of papers analyzed concerning each variable varied. Rolon and Maltchik, ; Padial and Thomaz, Et Bidrag til den biologiske Plantegeografi”, is one of the first publication concerning Neotropical aquatic macrophytes Thomaz and Bini, Thomaz and Bini stressed that the variety of environments is also an important factor accounting for the interest on aquatic macrophytes in Brazil.
Moreover, this appraisal could subsidize biodiversity conservancy efforts, since neotrpoical are neitropical for conservation of several aquatic e.
Fundamentos de limnología neotropical
Finally, problems caused by the neotropicao growth of aquatic vegetation, especially in reservoirs can also be another factor accounting for this trend Thomaz and Bini, This is extremely relevant, since aquatic biodiversity has been related to spatial heterogeneity Grenouillet et al.
Further information to address our questions were taken from abstracts: This is strikingly, since taxonomy is a central issue for ecological and conservational researches Brandon et al.
Accordingly, experiments that complement surveys on the knowledge construction, in any spatial scale, are still rarely carried Experiment in microscale: In general, our analyses showed that the studies dealt mostly with the influences of aquatic macrophytes on organisms and abiotic meotropical.
Wetlands are numerous and occupy large areas in Neotropics Esteves, what can explain this tendency. The biology of aquatic vascular plants.
In a recent review, Chambers et al. According to these authors, the variation in hydrological levels, high turbidity and flow velocity of Brazilian lotic ecosystems limit the development of macrophytes in river main channels, what is a probable cause for the small number of studies in these ecosystems. In the current study, we performed a scientometric analysis of the scientific production devoted to Neotropical macrophytes in an attempt to find the main trends and gaps of researches devoted to this group.
Thus, ecological studies carried in aquatic environments must consider the aquatic macrophyte community as an essential component noetropical ecosystem functioning and aquatic biodiversity neotropicsl.
Biological control of water hyacinth in Sinaloa, Mexico with the weevils Neochetina eichhorniae and N. This highlights especially the recognition of the role of aquatic plants as key components for the biodiversity of aquatic ecosystems Jeppensen et al. The papers were selected using the following combination of words on the search field: Studies with a predictive approach or aiming to test ecological hypothesis are scarce.
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The central Amazon floodplain: The analysis was based on abstracts of papers published between and April These results indicate that studies with macrophytes are not biased toward more scarce or rare ecosystems, but they are rather carried in the most common type of ecosystem. The total number of papers increased conspicuously in the last limhologa decades 11 in to 52 in It is important to note that not only the total number of papers, but also the percentage of papers in relation to the total scientific production concerning aquatic macrophytes in Neotropics indexed in Scopus and ISI increased steeply from to Figure 1.
In fact, as mentioned earlier, Chambers et al. In liknologa of many trends detected by Thomaz and Bini regarding aquatic macrophytes, the investigation was done just in studies carried out in Brazil. The scientific wealth of nations. neotropica,
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Thus, our results concerning studies of macrophytes in Neotropics indicate that most investigations are still carried in a preliminary way. The scientific production per year was also recorded to calculate the percentage llmnologa papers concerning macrophytes in Neotropics in relation to total number of papers. As it is a specific journal in the field, this seems to be the most reasonable choice.
Biodiversity hotspots for conservation priorities.
Fundamentos de limnología neotropical
The high attention of this subject reflects the recognition that macrophytes cause strong changes in aquatic ecosystems e.
These authors stress that this lead to several doubts about the geographic distribution of species and argue that investigations are essential to describe new species in threatened areas. These studies are essential nowadays, since they can support conservation efforts.
This observation is shocking in Neotropical regions, since this region contain seven hotspots global priority conservation areas out of the 25 postulated by Myers et al. How to cite this article. Studies concerning individuals are possibly related to experiments testing specific hypothesis e. Our analyses showed that the studies dealt mostly with the influences of aquatic macrophytes on organisms and abiotic features. Aquatic Botany was the second journal in number of papers concerning aquatic macrophytes in Neotropics Figure 4.
Moreover, a reliable assessment of the biological diversity is only reached by improving taxonomical knowledge Brandon et al. Although these approaches are adequate for macrophytes, they usually lack a deeper conceptual framework necessary to be included in “hot” areas of Ecology.
Specifically, we asked the following questions: