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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Moreover, a reliable assessment of the biological diversity is only reached by improving taxonomical knowledge Brandon et al. This observation is shocking oimnologa Neotropical regions, since this region contain seven hotspots global priority conservation areas out of the 25 postulated by Myers et al.
Chemical composition of floating aquatic macrophytes used to treat of aquaculture wastewater.
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This is extremely relevant, since aquatic biodiversity has been related to spatial heterogeneity Grenouillet et al. Also, submerged, together with free-floating aquatic plants, are targets of interest in impacted habitats such as reservoirs, since they can cause serious troubles for energetic production and water use e. Together with these investigations, basic researches aiming to describe unknown species are also necessary. Among other implications, aquatic macrophytes are known as highly productive Wetzel, and with an important structuring role on aquatic environments Jeppensen et al.
A critique for Ecology.
Fundamentos de limnología neotropical
In addition, limnological studies clearly increased in Brazil after Melo et al. Analyzing and measuring the publications of a particular theme provide an output of its trends, scientific productivity, and help to identify gaps in which a greater attention is necessary Dr et al. In fact, Esteves stressed the high abundance of floodplain shallow lagoons in Neotropics, compared to deep lakes, mostly found in temperate regions.
Studies with a predictive approach or aiming to test ecological hypothesis are scarce. All the contents of this journal, except where otherwise noted, is licensed under a Fhndamentos Commons Attribution License. As it is a specific journal in the field, this seems to be the most reasonable choice. This could also be explained by the high importance of aquatic plant communities for the production of organic matter Piedade et al.
Since some abstracts did not provide all information, the number of papers analyzed concerning each variable varied. 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. For example, there were some articles published in medical journals, since many species have been pointed as shelters for disease vectors, or even have been used in medicine.
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. However, taxonomic studies are still extremely scarce only nine articles; Figure 7.
The recognition of the importance limnoologa aquatic plants on the ecosystem functioning by Neotropical limnologists can be one reason for this faster increase. Fuhdamentos test of these hypotheses could be done by experiments could be then reached by experiments. This classical book was published in by Eugene Warming who is considered by Arthur Tansley “the father of the modern plant ecology” Godwin, Moreover, these approaches have a predictive power, and therefore, are also essential in conservation efforts Pace, The aquatic plant community or macrophytes comprises a diverse group of macrophytic organisms including angiosperms, ferns, mosses, liverworts and some freshwater macroalgae that occur in seasonally or permanently wet environments Lacoul and Freedman, ; Chambers et al.
The study of aquatic macrophytes in Neotropics: a scientometrical view of the main trends and gaps
Largemouth diet in two aquatic plant communities. 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. Commonly, four morphotypes or life forms are used to classify aquatic macrophytes: However, a precise view of researches devoted to aquatic macrophytes in Neotropics is necessary to reach a reliable evaluation of the scientific production.
The studies conducted in reservoirs are probably related to the problems that aquatic macrophytes cause due to excessive growth. Lake and River ecosystems. Results and Discussion A total of papers were analyzed, considering the criteria delineated in our Methods. Wetlands are numerous and occupy large areas in Neotropics Esteves, what can explain this tendency. The scientific impact of nations.
Methods The analysis was based on abstracts of papers published between and April Abundance and species richness as a function of food resources and vegetation structure: These plants are capable of colonizing several kinds of aquatic environments e. Biodiversity hotspots for conservation priorities.
In addition, researches neotropicla to describe unknown species are still necessary.
I ; Bini, LM. The papers were selected using the following combination of words on the search field: This is essential to support conservation efforts and to subsidize further investigations testing ecological hypotheses.
Trends and Challenges of Science in Latin America. Neiff, ; Junk, ; Esteves, Accordingly, the scientific production of Latin America also increased steeply in the last twenty years Hill, Fish assemblages with Egeria in a tropical reservoir: However, a precise view of ecological studies using aquatic macrophytes is necessary to reach a reliable evaluation of fndamentos scientific production.
These studies are essential nowadays, since they can support conservation efforts. Thomaz and Bini stressed that the variety of environments is also an important factor accounting for the interest on aquatic macrophytes in Brazil.
The analysis was based on abstracts of papers published between and April Rolon and Maltchik, The scientific production per year was also recorded to calculate the percentage of papers concerning macrophytes in Neotropics in relation to total number of papers.