Fosca Pedini Pereira Leite

Fosca Pedini Pereira Leite
University of Campinas | UNICAMP

About

111
Publications
21,973
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1,530
Citations
Citations since 2016
44 Research Items
718 Citations
2016201720182019202020212022050100150
2016201720182019202020212022050100150
2016201720182019202020212022050100150
2016201720182019202020212022050100150

Publications

Publications (111)
Article
Full-text available
Anthropogenic impacts cause habitat losses and reduce biodiversity in marine coastal habitats. Coastal macroalgae beds and their associate invertebrates are highly susceptible to environmental contamination. This study evaluated the differences in diversity parameters of Sargassum-associated gastropod and amphipod assemblages in areas located at di...
Article
Full-text available
Oceanic islands are known by their unique evolutionary histories and high endemicity caused by isolation. This is the first survey on the biodiversity of Peracarida from Trindade Island, a volcanic island located about 1,160 km off the Brazilian coast, with the first reports of Tanaidacea from the island and the description of Synapseudes isis sp....
Article
Full-text available
Macroalgae constitute an important habitat for several marine invertebrates, and their biomass and structural complexity modulates the abundance and diversity of species that live on them. Overall, fluctuations in algae biomass inflict fluctuations in the abundance of the associated mobile macrofauna, but the structure of the community may vary acc...
Article
Crustaceans and insects, abundant in the upper zone of sandy beaches, are sensitive to anthropogenic pressures. Thus, to better understand the behavioural changes over time with human impact, studying behavioural and populational parameters in places with pristine conditions is crucial. The Rocas Atoll is one of the first no entry marine reserves i...
Article
Behavioral differences between males and females can lead to sex-biased dispersal (SBD), and tube-building amphipods are good model organisms to study this process. Depending on the species, males or females have a different affinity to their tubes, and one sex may be more mobile than the other. This distinct dispersal behavior and the scales at wh...
Article
Sessile communities provide habitat for feeding, reproduction and protection to a diverse mobile fauna. Along succession, the growth and overgrowth of three-dimensional sessile organisms generate structural complexity and microhabitats for mobile organisms. Most studies focus on one species or group of the sessile fauna as a habitat provider, but h...
Article
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Background Dispersal is an important process affecting population dynamics and connectivity. For marine direct developers, both adults and juveniles may disperse. Although the distribution of juveniles can be initially constrained by their mothers’ choice, they may be able to leave the parental habitat and colonize other habitats. We investigated t...
Article
The brown alga Sargassum furcatum and three families of amphipods (Ampithoidae, Caprellidae and Hyalidae) associated to that algae were evaluated as bioindicators of petroleum hydrocarbons input into the marine environment of São Sebastião Channel, in southeastern region of Brazil. The n-alkanes pattern were mainly associated with the natural compo...
Article
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Seaweeds play a key role in the rocky-shore fauna by providing shelter and food for many invertebrate species, which in turn compose the diet of benthic and pelagic predators. This study investigated the effect of the macroalgal host species on an assemblage of associated amphipods, and tested if the host mediates the vulnerability of amphipods to...
Article
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Macrophytes provide a habitat for many species of marine invertebrates, the gastropods being one of the main components. This study provides new information about Sargassum -associated gastropod biodiversity, through characterization of the fauna from a highly impacted area of Brazil, investigating its variation at a small spatial scale and between...
Article
Dispersal and colonization processes are complex and affected by several factors in the marine realm. Understanding how and where individuals go can be challenging, particularly for marine invertebrates that do not have a sessile phase. We selected the amphipod-macroalga system to investigate if life stage and life style can influence colonization...
Article
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Bottom-up (e.g. resource quality) and top-down (e.g. predation) factors have strong effects on the fitness and distribution of small herbivores. Herein, we investigated how food quality and refuge offered by macroalgal hosts influence the distribution of a mesograzer. We used the herbivorous amphipod Cymadusa filosa and seasonally evaluated its ass...
Article
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Plant-herbivore interactions play an important role in the evolution of small terrestrial and marine herbivores. Some authors consider marine herbivorous amphipods to be ecologically equivalent to terrestrial insects, in that both are small relative to larger host plants, and host choices are often chemically mediated. Different host species provid...
Article
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The genus Pseudaeginella is analysed herein by cladistic methods based on a morphological data matrix of 49 characters × 18 terminal taxa. Based on the results, we comment on the phylogenetic position of Paradeutella within Pseudaeginella, and we propose Pseudaeginella multispinosa comb. nov. and Pseudaeginella tanzaniensis comb. nov. Pseudaeginell...
Conference Paper
As comunidades marinhas são constantemente modificadas por distúrbios naturais e antrópicos, que removem organismos e abrem novos espaços que podem ser colonizados, dando origem a um processo de sucessão ecológica. Este trabalho visa analisar ao longo do processo sucessional, as mudanças que ocorrem tanto no substrato biológico como na fauna associ...
Article
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Coralline algae form important rocky intertidal habitats, but their function may be radically changing worldwide as increased land deforestation may ultimately lead to higher sedimentation rates over algal mats, and more frequent extreme weather conditions may increase physical disturbances. One way of addressing how environmental change may affect...
Article
Full-text available
Plant-herbivore interactions play an important role in the evolution of small terrestrial and marine herbivores. Some authors consider marine herbivorous amphipods to be ecologically equivalent to terrestrial insects, in that both are small relative to larger host plants, and host choices are often chemically mediated. Different host species provid...
Article
Full-text available
The coastal environment is often impacted by anthropogenic actions like marine pollution, which has been affecting biogenic substrates and thus its associated fauna. Some brown macroalgae, like Sargassum spp., can accumulate heavy metals on its tissues, which can directly affect the fitness of herbivorous amphipods that feed upon these algae, which...
Article
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Consumers can regulate the acquisition and use of nutrients through behavioral and physiological mechanisms. Here, we present an experimental approach that simultaneously integrates multiple nutritional traits, feeding assays, and juvenile performance to assess whether a marine herbivore (the amphipod Ampithoe valida ) regulates the intake of eleme...
Article
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Frondose macroalgae usually harbors a diverse epifaunal community, whereas sediment among the fronds tends to decrease species richness and diversity. The macroalga Caulerpa racemosa is found in shallow waters and can trap sediment among its stolons. We investigated how the peracarid assemblages from two shores in southeastern Brazil are related to...
Article
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A depth gradient may influence both macrophytes and their associated epiphytic community through variations in hydrodynamics and light conditions, which in turn may affect the mobile organisms living on them. We investigated how a narrow depth gradient affects the associated peracarid assemblages in a Sargassum cymosum bed. This study was conducted...
Article
Clustering is a common behavior displayed by hermit crabs in intertidal environments. Aggregations are reported to occur during low-tide events, and the number of animals present may vary depending on the species. The “shell exchange market” hypothesis suggests that the main function of clustering is to allow animals to acquire new shells by fighti...
Article
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Species diversity is regulated by historical, neutral and niche processes, with species tolerance, dispersal and productivity guiding diversity at larger scales, while habitat heterogeneity and biotic interactions acts in smaller scales. In rocky shores, several organisms provide secondary substrates for mobile fauna, with macroalgae being the most...
Article
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The spatial distribution of organisms associated with marine intertidal macroalgae may be a direct result of their tolerance to air exposure or an indirect consequence of the distribution of their host. We compared amphipod assemblages from five intertidal macroalgae to investigate their relationship with algal identity. To test the effect of heigh...
Article
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Microsatellites are molecular tools for answering a wide variety of questions in population genetics. Here, we developed a novel set of microsatellite loci for the amphipod Cymadusa filosa using a microsatellite-enriched library. In total, 22 loci were described, and ten polymorphic markers were characterized for 30 individuals from southeastern Br...
Article
Environmental gradients are common in rocky shore habitats and may determine species spatial distributions at different scales. In this study, we tested whether environmental filtering affects amphipod assemblages inhabiting coralline algal mats at different vertical heights in southeastern Brazil. Samples obtained from the upper and lower zones of...
Article
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Hermit crabs respond to sensory cues that guide them toward limiting resources in marine and terrestrial environments. We examined the response of the common intertidal hermit crab Pagurus criniticornis (Dana, 1852) to simulated predation events on: (1) their principal shell donor Cerithium atratum (Born, 1778), (2) conspecifics, and (3) a sympatri...
Article
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Sponges are biogenic substrates that increase the available space on rocky shores and provide shelter for many groups of the benthic fauna, which can live both inside and on these sessile invertebrates. In order to assess the differences in temporal variation of endobiont and epibiont groups, samples of the red sponge Tedania ignis (Duchassaing & M...
Article
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A mangrove forest can harbour several macroalgal assemblages growing on pneumatophores, roots, stems and other hard substrates. These algae belong to various genera, most typically Bostrychia , and form a community called the Bostrychietum. This study describes the fauna associated with the Bostrychietum and the effect of emersion time on the commu...
Article
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Peracarid crustaceans are an important component of the vagile fauna associated with coralline algal beds, which often characterize the infralittoral fringe of tropical rocky shores. Among other variables affecting faunal assemblages, sedimentation, food supply and oxygen concentration within mats or turfs of coralline algae may greatly depend on t...
Article
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The spatial distribution of fauna associated to marine macroalgae has mostly been investigated considering a horizontal plane. However, the macroalgal substrates can present a three-dimensional structure. In this sense, investigating how the associated fauna varies throughout a vertical plane can contribute to understanding the distribution of thes...
Article
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Marine sponges are advantageous microhabitats because of their complex architecture. The system of internal canals provides circulation of water and deposition of particulate organic matter, ensuring availability of food and shelter. Diminutive amphipods have little difficulty penetrating the spaces of sponges and remain in their aquiferous systems...
Article
The difference between preferred and available resources within natural environments can be viewed as the disparity between fundamental and realized niches. We employ this concept to examine intra-specific sexual variation in the shell-size relationships of the hermit crab Pagurus criniticornis (Dana, 1852) from two treatments: (1) a natural unbias...
Article
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O fital é caracterizado pela formação de bancos de algas marinhas e uma grande diversidade de espécies associadas, estando a malacofauna entre seus principais componentes. Com o objetivo de registrar as assembleias de gastrópodes associadas è alga parda Sargassum C. Agardh, 1820, este estudo foi realizado no Canal de São Sebastião, litoral norte do...
Article
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The presence of particular algal species can directly influence the distribution and abundance of mesoherbivores. The aim of this study was to answer the following questions: Do Sargassum beds of different localities show variation in the load of epiphytic algae? Do Sargassum beds of different localities show variation in the density of herbivore a...
Article
The presence of particular algal species can directly influence the distribution and abundance of mesoherbivores. The aim of this study was to answer the following questions: Do Sargassum beds of different localities show variation in the load of epiphytic algae? Do Sargassum beds of different localities show variation in the density of herbivore a...
Article
Full-text available
A new species of Hourstonius is described from the northern coast of São Paulo State. Hourstonius wakabarae sp. nov. is distinguished from the other species of the genus by the morphology and the size of the accessory flagellum of antenna 1, the articles of antennae 1 and 2, the mandibular molar, and the telson. The new species H. wakabarae lives a...
Article
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Communities associated with macroalgae are known to host a diverse and abundant fauna. Despite the ecological importance of this environment, studies with macroalgae present at the rocky shores are relatively scarce and mostly conducted with structurally more complex species. The main goal of this study was to analyze the crustacean species associa...
Article
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Here we studied the activity budgets of nine common reef fish in the oceanic archipelago of Fernando de Noronha, off north-east Brazil. Species were variable in their behaviour between different sites and similarities in their activity budgets were not necessarily associated with their trophic group. For four species we investigated the relationshi...
Article
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Temporal and spatial fluctuations of environmental parameters are normally assigned as causes of variations in morpho-phenological characters of seaweeds and in their epibionts, but formal tests of such hypotheses are lacking, especially in narrow gradients. The present study evaluated the influence of a very small depth gradient (1 to 3 m) and of...
Article
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Ultrastructural analyses of bivalve spermatozoa are relevant in studies that aim to identify taxonomic traits for the purposes of discriminating species and conducting phylogenetic studies. In the present work, spermatozoa of mussel specimens of the genus Mytella, collected from two populations living in distinct habitats, were examined by electron...
Article
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The phytal assemblages change in response to variation in biological and environmental conditions. In the present study, we evaluated the temporal variation of amphipod assemblages associated with a Sargassum filipendula bed in a subtropical shore, in relation to variation of the host alga, its epiphytes and local environmental conditions. Samples...
Article
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In the present study, we evaluate the influence of biotic and abiotic factors on temporal fluctuations of Sargassum filipendula in a subtropical shore. Monthly algal samples, abiotic components, amphipod grazer density, and epiphyte biomass were obtained from a Sargassum bed in south-eastern Brazil. Density of S. filipendula fronds decreased during...