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Thaisa Sala Michelan

Thaisa Sala Michelan
Universidade Federal do Pará, Belém, Brazil · Instituto de Ciências Biológicas

Dr.

About

35
Publications
25,769
Reads
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855
Citations
Citations since 2017
15 Research Items
628 Citations
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2017201820192020202120222023020406080100120140
2017201820192020202120222023020406080100120140
2017201820192020202120222023020406080100120140
Introduction
My main focus of interest is freshwater ecology. My research deals with the effects of invasive macrophytes on aquatic communities. I have been studying how species richness of macrophytes influence the colonization and success of invasive species
Additional affiliations
September 2016 - June 2020
Universidade Federal do Pará
Position
  • Professor
March 2016 - February 2017
Universidade Estadual de Maringá
Position
  • PostDoc Position
March 2012 - February 2016
Universidade Estadual de Maringá
Position
  • PhD Student

Publications

Publications (35)
Article
Full-text available
1. A growing body of evidence has shown that biological invasions cause shifts in species composition of communities in space and time. Although biological invasions are considered a major driver of biotic homogenisation worldwide, most previous studies were conducted at small spatial scales and over short time periods, which may have underestimate...
Article
Streams are among the most diverse aquatic ecosystems on the planet and help to structure different biological groups. Although streams are influenced by several environmental factors, riparian vegetation is especially important. Human activities have affected riparian zones, which consequently impact organisms such as aquatic macrophytes. Thus, he...
Article
Full-text available
Introduction: The study of herbivory is fundamental in ecology and includes how plants invest in strategies and mechanisms to reduce herbivore damage. However, there is still a lack of information about how the environment, plant density, and functional traits influence herbivory in aquatic ecosystems. Objective: To assess if there is a relationsh...
Article
A major challenge in using recovery techniques, for the different natural ecosystems affected by mining, is a mutual relationship between the habitat and its biota response. This study aimed to do a review to identify the number of publications, which countries are publishing more and which recovery techniques and taxonomic group are used in mining...
Article
Full-text available
In freshwater ecosystems, macrophyte contribute to habitat heterogeneity with their varying structural forms, ranging from free submerged to rooted species. Macrophytes provide substrates that support fish populations, providing food and refuge from predators, especially in semi-lentic environments, like river floodplains, which tend to provide lit...
Article
Full-text available
The Amazon possesses the largest fluvial system on the planet, harboring a diverse biota. Still, many species remain undescribed, because of the Amazon’s immense scale and complexity, and because many habitats are now increasingly under pressure from anthropogenic activities. Macrophytes are important to physical and biological processes in aquatic...
Article
Understanding the role of abiotic and biotic factors on biological communities is a challenge for ecologists. Individuals of the order Odonata have a close connection with these factors, which can influence the establishment of each stages of live. This study evaluated the relationship between habitat complexity and limnological variables on the di...
Article
Land use is considered one of the most serious drivers of biodiversity change. Aquatic macrophytes are sensitive to changes occurring within their physical habitat and respond at different scales to the effects of land use. Our main objective was to evaluate the effects of multiple land uses on macrophyte diversity. For that, we surveyed aquatic ma...
Article
Exploring the density-dependence theory is crucial to understanding how size patterns among individuals are established. This study tested if percent cover affects the morphological and allometric relationship variation of individuals of Eichhornia azurea (Swart) Kunth, an emergent perennial mat-forming macrophyte commonly found in the lower Amazon...
Article
Full-text available
Invasive species influence the structure and functioning of ecosystems, as they affect native species, significantly decreasing their diversity. Aquatic ecosystems harbor a great biodiversity, and invasive macrophytes significantly affect the native plant communities, causing a cascade effect on other trophic levels. Among invasive macrophytes, Uro...
Article
Full-text available
The struggle to control insect-borne diseases can lead to make rash decisions. For instance, the controversial method of planting of Crotalaria spp. to attract predatory dragonflies can be used to control insect vectors of dengue fever and several other medically significant insect-borne diseases. Nevertheless, there is no scientific support for th...
Article
Full-text available
The deposition of plant detritus changes sediment features, but little is known about how the accumulation of detritus affects the colonization of invasive and native submerged macrophytes. We tested the predictions that (i) submerged macrophyte occurrences correlate positively with the presence of detritus over sediment; (ii) the colonization of s...
Article
Full-text available
Through litter decomposition enormous amount of carbon is emitted to the atmosphere. Numerous large-scale decomposition experiments have been conducted focusing on this fundamental soil process in order to understand the controls on the terrestrial carbon transfer to the atmosphere. However, previous studies were mostly based on site-specific litte...
Article
Full-text available
Through litter decomposition enormous amounts of carbon is emitted to the atmosphere. Numerous large-scale decomposition experiments have been conducted focusing on this fundamental soil process in order to under-stand the controls on the terrestrial carbon transfer to the atmosphere. However, previous studies were mostly based on site-specific litt...
Article
Full-text available
Aim Viability and successful colonization of propagules by an invasive species may depend on several factors, such as parental plant size and propagules’ fresh mass. Here, we tested (i) the effects of propagules’ origin (from large and small parental plants); (ii) the position in the parental stem (apical, intermediate and basal) on the early devel...
Article
In this review, we aim to draw parallels between the principal concepts of invasion biology, developed mainly for terrestrial plants in temperate regions, with findings for macrophytes recorded in tropical inland waters. In these ecosystems, the most important abiotic and biotic filters influencing invasion success are related to water and sediment...
Article
Full-text available
Aim: To test the invasibility of aquatic ecosystems by an exotic species, we used the invasive macrophyte Urochloa arrecta, which has invaded many Neotropical waterbodies and has reduced biodiversity in these habitats. The extensive growth of this macrophyte can be related to its affinity for mud-rich sediments, which occur primarily in secondary r...
Article
Full-text available
In this study, we tested the hypothesis that in floodplain lakes connected to a primary river with regulated flow, the zooplankton composition is maintained by the species found in lakes connected to preserved tributaries (under the influence of damming). Zooplankton were sampled from 23 lakes connected to the Paraná, Ivinhema and Baía Rivers on th...
Article
Full-text available
In this review, we aim to draw parallels between the principal concepts of invasion biology, developed mainly for terrestrial plants in temperate regions, with findings for macrophytes recorded in tropical inland waters. In these ecosystems, the most important abiotic and biotic filters influencing invasion success are related to water and sediment...
Article
Full-text available
Aquatic macrophytes colonize a variety of environments, and they play important roles in ecosystem function and in community structure. One key challenge for aquatic ecologists is to investigate the environmental factors that drive the richness and distribution of these plants. In this study, we assessed the importance of selected morphometric vari...
Article
Full-text available
Tributaries may serve as richness source for the river main channel and the zoobenthos community is a good tool to verify this kind of pattern. In this study, we aimed to characterize the benthic invertebrate assemblage in three tributaries associated to the Paraná River main channel, focusing in Oligochaeta community. We hypothesized that (i) in t...
Data
The effects of introduced species on native species have been widely studied, however, invader-invader interactions are still poorly explored. Two non-native invasive species, the bivalve Limnoperna fortuneiand the submersed macrophyte Hydrilla verticillata, have infested many aquatic ecosystems worldwide, and they are rapidly becoming nuisances in...
Article
Full-text available
The effects of introduced species on native species have been widely studied, however, invader-invader interactions are still poorly explored. Two non-native invasive species, the bivalve Limnoperna fortunei and the submersed macrophyte Hydrilla verticillata, have infested many aquatic ecosystems worldwide, and they are rapidly becoming nuisances i...
Article
Full-text available
The number of citations that papers receive has become significant in measuring researchers' scientific productivity, and such measurements are important when one seeks career opportunities and research funding. Skewed citation practices can thus have profound effects on academic careers. We investigated (i) how frequently authors misinterpret orig...
Article
Full-text available
The role of the native species richness and density in ecosystem invasibility is a matter of concern for both ecologists and managers. We tested the hypothesis that the invasiveness of Urochloa arrecta (non-native in the Neotropics) is negatively affected by the species richness and abundance of native aquatic macrophytes in freshwater ecosystems....
Article
Full-text available
Biotic and abiotic factors are filters that prevent invasions in aquatic and terrestrial ecosystems. In this investigation we tested the hypothesis that the success of a non-native Poaceae (Urochloa subquadripara) is positively correlated with the richness of native macrophytes and negatively correlated with wind disturbance (fetch) and presence of...
Article
Full-text available
The purpose of this study is to conduct a scientometric analysis of the global climate change (GCC) literature to identify the patterns, trends and biases in this research field. Data were obtained using the Thomson ISI database. A total of 5,444 articles on GCC were recorded, showing a temporal increase in the number of articles (r = 0.84; P < 0.0...
Article
Full-text available
Habitat complexity has long been known to influence animal community structure by increasing the number of available habitats. Fifty years have passed since MacArthur brothers published the seminal paper “On bird species diversity”, which revolutionized studies of habitat structure. This paper first evidenced and quantified the relationship between...
Article
The association between invasive and native species varies across spatial scales and is affected by phylogenetic relatedness, but these issues have rarely been addressed in aquatic ecosystems. In this study, we used a non-native, highly invasive species of Poaceae (tropical signalgrass) to test the hypotheses that (i) tropical signalgrass success c...
Article
Full-text available
The emergent macrophyte Urochloa subquadripara, an exotic and invasive species, causes extensive damage to aquatic plant assemblages. Regeneration and colonization by fragments of U. subquadripara may be affected by desiccation and may differ according to the fragment portion (apical, intermediate or basal). We tested the hypotheses that the abilit...
Article
Full-text available
In the last three decades, rapid assessment surveys have become an important approach for measuring aquatic ecosystem biodiversity. These methods can be used to detect anthropogenic impacts and recognize local or global species extinctions. We present a floristic survey of the aquatic macrophytes along the Brazilian margin of the Itaipu Reservoir c...
Article
1. The issue of freshwater species being threatened by invasion has become central in conservation biology because inland waters exhibit the highest species richness per unit area, but apparently have the highest extinctions rates on the planet. 2. In this article, we evaluated the effects of an exotic, invasive aquatic grass (Urochloa subquadripar...
Article
Full-text available
In 1959, G.E. Hutchinson provided a general explanation for the diversity of species in his paper “Homage to Santa Rosalia or why are there so many kinds of animals?” To assess the contribution of the ideas Hutchinson introduced in “The Homage” to aquatic ecology research, we performed a bibliometric evaluation of all the articles that cited this p...
Article
Full-text available
Two exotic invasive macrophyte species (the emergent Urochloa subquadripara - tenner-grass - and the submersed Hydrilla verticillata - hydrilla) were investigated in a large sub-tropical reservoir. We analyzed their occurrences over an extended period and tested the hypothesis that macrophyte richness decreases their invasibility. The alternative h...

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Projects

Projects (3)
Project
Human activities are causing declines in biodiversity worldwide. To lose species is to lose ecologically unique units that may play complementary roles, varying their contributions to different ecosystem functions. Ecosystems with more preserved functions can provide adequate ecosystem services for human well-being. Understanding how biodiversity loss can alter ecosystems’ functioning has become fundamental in the Anthropocene. However, human activities have also caused global changes such as species invasions and changes in rainfall patterns that can lead to extreme weather events, both of which can have adverse effects on biodiversity and human well-being. There is no doubt that humans directly or indirectly affect the relationship between biodiversity and ecosystem functioning and thus harm their very existence by not making sustainable use of ecosystem services. Water is crucial in integrating different sustainability dimensions; therefore, it can trigger societal transformations. Therefore, this proposal aims to understand patterns of biodiversity and ecosystem processes in freshwater in the face of human activities and their consequences. These ecosystems often suffer from the pressures of human activities, including biological invasions. Furthermore, we intend to identify the impacts of human activities on aquatic biodiversity and to determine characteristics of the construction of multimetric indices that can assist in detecting these impacts, thus providing information for the definition of priority areas for the mitigation and control of effects of human activities. Considering the 2030 Agenda proposed by the United Nations through the Sustainable Development Goals (SDGs), it is urgently necessary to integrate the environmental, social, and economic sectors to achieve sustainable development.
Project
Assess whether the mining and reforestation activities are affecting the integrity of aquatic ecosystems and their fauna, considering different scales of analysis. Specific objectives: i) Assess whether there are differences in environmental variables between sampling sites, seeking to verify if these differences are related to the type of use of the area (areas of conservation value and reforestation categories); ii) Use crustacean, aquatic insect and fish communities to evaluate the aquatic biodiversity of the region using richness, species composition and indices that assess environmental integrity; iii) Use species selected from Item ii as biomonitors for the evaluation of biochemical biomarkers; iv) Evaluate the utility of metabarcoding for non-invasive monitoring of aquatic organisms
Project
Evaluate environmental and biological factors that may affect positively or negatively the invasion success of species such as the submerged macrophyte Hydrilla verticillata, grasses like Urochloa arrecta, snails such as Melanoides tuberculata and Pomacea canaliculata, the mussel Limnoperna fortunei, as well as many fish species, mainly in shallow lakes, with experiments and field works.