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	Provedor de dados ArchiMer (29) Ecology and Society (12) Rev. Bras. Zool. (2) Biota Neotropica (2) Neotropical Ichthyology (2) Biological Sciences (1) AgEcon (1) Colegio de Postgraduados (1) Anais da ABC (AABC) (1) BABT (1) Genet. Mol. Biol. (1) Mais... Autor Bourjea, Jerome (6) Dumas, Franck (3) Arnaud-haond, Sophie (2) Aurelle, Didier (2) Avigliano,Esteban (2) Dalleau, Mayeul (2) De Pontual, Helene (2) Evano, Hugues (2) Huret, Martin (2) Lalire, Maxime (2) Petitgas, Pierre (2) Thiebaut, Eric (2) Viard, Frederique (2) Volpedo,Alejandra V. (2) Abernathey, Ryan (1) Adame, C. Gabriela Mayorga (1) Adams, Thomas P. (1) Aguilar-perera, Alfonso (1) Alfaro-lucas, Joan Manel (1) Almeida-Gomes,Mauricio (1) Mais... 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Última Adult-mediated connectivity affects inferences on population dynamics and stock assessment of nursery-dependent fish populations ArchiMer Archarnbault, Benoit; Le Pape, Olivier; Baulier, Loic; Vermard, Youen; Veron, Matthieu; Rivot, Etienne. We explore how alternative hypotheses on the degree of mixing among local subpopulations affect statistical inferences on the dynamics and stock assessment of a harvested flatfish population, namely, the common sole population in the Eastern Channel (ICES area VIId). The current paradigm considers a single, well-mixed, spatially homogeneous population with juveniles from all coastal nursery grounds along the French and UK coasts that contribute to a single adult population and one pool of eggs. Based on the available data and ecological knowledge, we developed a spatial Bayesian integrated life-cycle model that consists of three subpopulations (one near the UK coast and two near the French coast, denoted UK, West FR and East FR, respectively) supported by... Tipo: Text Palavras-chave: Solea solea; Spatial life-cycle model; Coastal nurseries; Connectivity; Stock assessment; Hierarchical bayesian model. Ano: 2016 URL: http://archimer.ifremer.fr/doc/00333/44430/44231.pdf Anuran community composition along two large rivers in a tropical disturbed landscape Rev. Bras. Zool. Almeida-Gomes,Mauricio; Rocha,Carlos Frederico Duarte; Vieira,Marcus Vinícius. In this study we evaluated how anuran species were distributed in riparian habitats along two large rivers. Sampling was carried out between January and March 2012 in the municipality of Cachoeiras de Macacu, state of Rio de Janeiro. We delimited 20 plots along each river, ten in portions inside the forest of the Reserva Ecológica de Guapiaçu (REGUA), and with comparatively greater amount of forest cover, and ten outside REGUA, with comparatively lesser forest cover surrounding the rivers. We recorded 70 individuals from 14 frog species in the Manoel Alexandre River and 63 individuals from 15 frog species in the Guapiaçu River. The most abundant species in both rivers was Cycloramphus brasiliensis (Steindachner, 1864), and it was more abundant in sections... Tipo: Info:eu-repo/semantics/article Palavras-chave: Amphibian conservation; Aquatic environments; Connectivity; Frog species; Riparian forests. Ano: 2015 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702015000100009 Are We Entering an Era of Concatenated Global Crises? Ecology and Society Biggs, Duan; ARC Centre of Excellence for Coral Reef Studies, James Cook University, Townsville Australia; ancientantwren@gmail.com; Biggs, Reinette (Oonsie); Stockholm Resilience Centre, Stockholm University, Sweden; oonsie.biggs@stockholmresilience.su.se; Dakos, Vasilis; Department of Aquatic Ecology & Water Quality Management, Wageningen University; vasileios.dakos@wur.nl; Scholes, Robert J; CSIR Natural Resources and the Environment, Pretoria, South Africa; BScholes@csir.co.za; Schoon, Michael; School of Human Evolution and Social Change, Arizona State University; Michael.Schoon@asu.edu. An increase in the frequency and intensity of environmental crises associated with accelerating human-induced global change is of substantial concern to policy makers. The potential impacts, especially on the poor, are exacerbated in an increasingly connected world that enables the emergence of crises that are coupled in time and space. We discuss two factors that can interact to contribute to such an increased concatenation of crises: (1) the increasing strength of global vs. local drivers of change, so that changes become increasingly synchronized; and (2) unprecedented potential for the propagation of crises, and an enhanced risk of management interventions in one region becoming drivers elsewhere, because of increased connectivity. We discuss the... Tipo: Peer-Reviewed Insight Palavras-chave: Concatenation; Connectivity; Crisis; Disaster; Food price crisis; Governance; Learning; Thresholds. Ano: 2011 Butterflies (Lepidoptera: Hesperioidea and Papilionoidea) of Porto Mauá, Upper Paraná Atlantic Forest Ecoregion, Rio Grande do Sul State, Brazil Biota Neotropica Thiele,Sabrina Campos; Milcharek,Oscar; Santos,Fábio Luis dos; Kaminski,Lucas Augusto. This paper presents a list of species of butterflies (Lepidoptera: Hesperioidea and Papilionoidea) sampled in Porto Mauá municipality (27°34’S, 28°40’W), Rio Grande do Sul State, Brazil. Sampling was carried out monthly between March 2008 and March 2009. After 204 net-hours of sampling effort, a total of 1,993 individuals from 253 species were recorded. With a single additional expedition, eight new species were added, reaching a total of 261 species recorded in the region of Porto Mauá. These new reports and the species accumulation curves may indicate a much richer fauna. The distribution of richness among butterfly families is compared with other inventories in seasonal semi-deciduous forest areas in the Atlantic Forest. We also discuss the importance... Tipo: Info:eu-repo/semantics/article Palavras-chave: Atlantic Forest; Connectivity; Conservation; Seasonal semi-deciduous forest; Species richness. Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032014000200211 Calopteryx Damselfly Dispersions Arising from Multiscale Responses to Landscape Structure Ecology and Society Jonsen, Ian; University of Alberta; jonseni@em.agr.ca; Taylor, Philip D; Acadia University; ptaylor@resalliance.org. Using spatially explicit simulation models, we explored the extent to which fine-scale (i.e., meters to tens of meters) movement behaviors could be used to predict broader scale patterns of distribution on heterogeneous landscapes. Our models were tailored by empirical data on Calopterygid damselfly movements on three types of landscapes that differed in amount of forest habitat. Surveys of the two congeneric damselflies, Calopteryx aequabilis and Calopteryx maculata, demonstrated that both species occupied stream and forest habitats on forested and partially forested landscapes, but were found primarily along streams on nonforested landscapes. Simulation models whose parameters were derived using empirical movement data for both species showed that... Tipo: Peer-Reviewed Reports Palavras-chave: Calopteryx aequabilis; Calopteryx maculata; Connectivity; Damselflies; Landscape structure; Movement behaviors; Multiscale dispersion; Patch boundary permeability; Patch viscosity; Simulation model; Spatial scale. Ano: 2000 Community structure of the ichthyofauna associated with seagrass beds ( Halodule wrightii) in Formoso River estuary - Pernambuco, Brazil Anais da ABC (AABC) Pereira,Pedro H.C.; Ferreira,Beatrice P.; Rezende,Sérgio M.. Seagrass beds are used by juvenile fishes in different ways, generally as nursery sites, shelter from predators, reducing competition and increasing availability of food resources, thus establishing a relationship of connectivity with other ecosystems. In the present study, the community structure of the ichthyofauna associated with seagrass beds on the Formoso River (Pernambuco - Brazil) was evaluated during the winter of 2008. Twenty-seven manual trawls (15 daytime and 12 nighttime) were performed, and a total of 358 fishes belonging to 18 families, 21 genus and 25 species were collected. The Catch Per Unit Effort (CPUE) by trawling average was 13.5 and 4.95 individuals per species per trawl. The most abundant families were Scaridae (n = 111),... Tipo: Info:eu-repo/semantics/article Palavras-chave: Connectivity; Seagrass beds; Reef fishes; Diversity. Ano: 2010 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652010000300009 Connectivity patterns of anchovy larvae in the Bay of Biscay from a coupled transport-bioenergetic model forced by size-structured zooplankton ArchiMer Huret, Martin; Vandromme, Pieter; Petitgas, Pierre; Pecquerie, Laure. Connectivity during early life stages of pelagic fish, defined here by survival probability between spawning and early juvenile habitats, depends on a combination of sufficient food availability and low predator encounter along drift trajectories. For anchovy in the Bay of Biscay, larval transport experiments throughout the spawning season suggest accumulation of early juveniles in the offshore area of the southern Bay, as well as retention over the mid-shelf at mid-latitude. However, late summer-early autumn surveys suggest presence of juveniles only in the former region. From this observation, we set up a bioenergetic individual based model to test for the effect of food availability on survival patterns. The model couples a Lagrangian transport module... Tipo: Text Palavras-chave: Connectivity; Larval IBM; Bioenergetics; Zooplankton; Bay of Biscay; European anchovy. Ano: 2012 URL: http://archimer.ifremer.fr/doc/00105/21655/19237.pdf Cumulative Effects of Barriers on the Movements of Forest Birds Ecology and Society St. Clair, Colleen Cassady; University of Alberta; cstclair@ualberta.ca. Although there is a consensus of opinion that habitat fragmentation has deleterious effects on animal populations, primarily by inhibiting dispersal among remaining patches, there have been few explicit demonstrations of the ways by which degraded habitats actually constrain individual movement. Two impediments are primarily responsible for this paucity: it is difficult to separate the effects of habitat fragmentation (configuration) from habitat loss (composition), and conventional measures of fragmented habitats are assumed to be, but probably are not, isotropic. We addressed these limitations by standardizing differences in forest cover in a clearly anisotropic configuration of habitat fragmentation by conducting a homing experiment with three species... Tipo: Peer-Reviewed Reports Palavras-chave: Banff National Park; Golden-crowned Kinglet; Red-breasted Nuthatch; Yellow-rumped Warbler; Barriers; Connectivity; Corridor; Forest cover; Fragmentation; Habitat loss; Movement of forest birds; Roads. Ano: 2001 Detecting Critical Scales in Fragmented Landscapes Ecology and Society Keitt, Timothy; State University of New York at Stony Brook; Timothy.Keitt@StonyBrook.Edu; Urban, Dean L; Duke University; deanu@pinus.env.duke.edu; Milne, Bruce T; University of New Mexico; bmilne@sevilleta.unm.edu. We develop methods for quantifying habitat connectivity at multiple scales and assigning conservation priority to habitat patches based on their contribution to connectivity. By representing the habitat mosaic as a mathematical "graph," we show that percolation theory can be used to quantify connectivity at multiple scales from empirical landscape data. Our results indicate that connectivity of landscapes is highly scale dependent, exhibiting a marked transition at a characteristic distance and varying significantly for organisms with different dispersal behavior. More importantly, we show that the sensitivity and importance of landscape pattern is also scale dependent, peaking at scales associated with the percolation transition. In addition, the... Tipo: Peer-Reviewed Reports Palavras-chave: Connectivity; Conservation in fragmented landscapes; Dispersal; Fragmentation; Habitat connectivity vs. dispersal distance; Landscape; Landscape graphs; Metapopulation; Percolation; Quantifying habitat connectivity at multiple scales; "stepping stone" patch; Strix occidentalis lucida.. Ano: 1997 Dispersion of deep-sea hydrothermal vent effluents and larvae by submesoscale and tidal currents ArchiMer Vic, Clement; Gula, Jonathan; Roullet, Guillaume; Pradillon, Florence. Deep-sea hydrothermal vents provide sources of geochemical materials that impact the global ocean heat and chemical budgets, and support complex biological communities. Vent effluents and larvae are dispersed and transported long distances by deep ocean currents, but these currents are largely undersampled and little is known about their variability. Submesoscale (0.1–10 km) currents are known to play an important role for the dispersion of biogeochemical materials in the ocean surface layer, but their impact for the dispersion in the deep ocean is unknown. Here, we use a series of nested regional oceanic numerical simulations with increasing resolution (from δx=6km to δx=0.75km) to investigate the structure and variability of highly-resolved deep currents... Tipo: Text Palavras-chave: Submesoscales; Tides; Hydrothermal vent; Lagrangian dispersion; Lucky Strike; Mid-Atlantic Ridge; Connectivity; Bathymodiolus. Ano: 2018 URL: https://archimer.ifremer.fr/doc/00419/53001/53949.pdf Distribution, prevalence, and genetic analysis of Panulirus argus virus 1 (PaV1) from the Caribbean Sea ArchiMer Moss, Jessica; Behringer, Donald; Shields, Jeffrey D.; Baeza, Antonio; Aguilar-perera, Alfonso; Bush, Phillippe G.; Dromer, Clement; Herrera-moreno, Alejandro; Gittens, Lester; Matthews, Thomas R.; Mccord, Michael R.; Schaerer, Michelle T.; Reynal, Lionel; Truelove, Nathanial; Butler, Mark J.. The pathogenic virus Panulirus argus virus 1 (PaV1) was first discovered in Caribbean spiny lobsters Panulirus argus from the Florida Keys (USA) in 1999 and has since been reported in Belize, Mexico, and Cuba; its distribution in the wider Caribbean is unknown. We collected tissue samples from adult spiny lobsters from 30 locations in 14 countries bordering the Caribbean Sea and used molecular diagnostics to assay for the presence of PaV1. PaV1 occurred primarily in the northern areas of the Caribbean, where its prevalence was highest. The virus was not found in lobsters from the southeastern Caribbean, and its prevalence was lowest in the southwestern Caribbean. DNA sequence analysis was performed on a fragment of the viral DNA to examine the genetic... Tipo: Text Palavras-chave: Spiny lobster; Disease; Epidemiology; Connectivity. Ano: 2013 URL: http://archimer.ifremer.fr/doc/00144/25503/23698.pdf Diversity, Distribution and Phylogeny of Hesionidae (Annelida) Colonizing Whale Falls: New Species of Sirsoe and Connections Between Ocean Basins ArchiMer Shimabukuro, Mauricio; Carrerette, Orlemir; Alfaro-lucas, Joan Manel; Rizzo, Alexandra Elaine; Halanych, Kenneth M.; Sumida, Paulo Yukio Gomes. Whale falls are important environments contributing to biodiversity, connectivity and evolutionary novelty in deep-sea ecosystem. Notwithstanding, most of this knowledge is based in studies from NE Pacific basin. Interestingly, the only known natural whale fall on the SW Atlantic has faunal composition affinities with carcasses from other deep-ocean basins. In this carcass, annelid worms belonging to Hesionidae are abundant and species-rich, and include some shared species with NE Pacific Ocean. Here we evaluate the diversity of Hesionidae on the SW Atlantic using new information of implanted whale bones and explore whether some species have interbasin distribution or if they represent cryptic species in different basins. We described, using morphological... Tipo: Text Palavras-chave: Deep sea; Biodiversity; Cryptic species; Biogeography; Connectivity. Ano: 2019 URL: https://archimer.ifremer.fr/doc/00509/62081/66263.pdf Do Sardinella aurita spawning seasons match local retention patterns in the Senegalese-Mauritanian upwelling region? ArchiMer Mbaye, Baye Cheikh; Brochier, Timothee; Echevin, Vincent; Lazar, Alban; Levy, Marina; Mason, Evan; Gaye, Amadou Thierno; Machu, Eric. Sardinella aurita is the most abundant small pelagic fish in the Senegalese-Mauritanian region. The success of its reproduction crucially depends on the local circulation as this determines whether larvae reach coastal nursery areas favorable to their survival or are dispersed into the open ocean. As a first step towards evaluating sardinella vulnerability to climate-driven hydrodynamical changes, this study aims at underpinning how transport pathways drive optimal spatial and seasonal patterns for sardinella reproduction. We have used two estimates of the Senegalese-Mauritanian coastal seasonal circulation simulated by two hydrodynamical model configurations that differ in their forcing and topography. Nursery areas are determined by evaluating coastal... Tipo: Text Palavras-chave: Bio-physical model; Canary current system; Connectivity; Larval retention; Recruitment; Sardinella aurita; Senegalese-Mauritanian upwelling; Spawning. Ano: 2015 URL: https://archimer.ifremer.fr/doc/00254/36524/36733.pdf Écologie de la reproduction de l’huître Crassostrea gigas en lagune méditerranéenne ArchiMer Lagarde, Franck. The Mediterranean lagoons host many anthropogenic uses including shellfish aquaculture since the beginning of the 20th century. Imported in 1970, the cupped oyster, Crassostrea gigas, has adapted perfectly and has allowed an important development of oyster’s industry until 2008, the year of occurence of spat outbreak related to the emergence of an Ostreid Herpes-virus μvar. The scarcity of spat and the speculation on this product changed regionally cultural practices and the supply of juveniles, with in particular the wish of developing a local activity of spat collection. However the cycle of reproduction of the species and the recruitment of juveniles were poorly known in lagoon environments. In this context, the objective of this thesis is to... Tipo: Text Palavras-chave: Huître; Écologie larvaire; Ressource trophique; Connectivité; Recrutement; Lagune côtière; Oyster; Larval ecology; Trophic resource; Connectivity; Recruitment; Coastal lagoon. Ano: 2018 URL: https://archimer.ifremer.fr/doc/00472/58347/60901.pdf Fragment edge and isolation affect the food web: effects on the strength of interactions among trophic guilds Biota Neotropica Melo,Michele Molina; Silva,Cristina Magalhães; Barbosa,Carina Santos; Morais,Maristela Calvente; D'Anunciação,Paula Eveline Ribeiro; Silva,Vinícius Xavier da; Hasui,Érica. Abstract Habitat loss and fragmentation are processes that may affect communities by changing species interactions. These changes occur because the strength of linkages between species is not exclusively dependent on predator and prey traits. Species interaction changes also depend on the spatial context in which they take place. We used structural equation modelling to evaluate effects of these processes at patch-scale on top-down and bottom-up controls in food webs in Atlantic Forest. The model was composed of multiple species, and trophic guilds responded differently to fragment edge and isolation. Changes in bottom-up and top-down controls were mainly related to intermediate predator interactions. Efforts to restore connectivity among fragments should... Tipo: Info:eu-repo/semantics/article Palavras-chave: Atlantic Forest; Bird; Brazil; Connectivity; Landscape; Mammal; Patch-scale; Patch size; Predator-prey interaction; Trophic cascade. Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032016000200209 Green turtle (Chelonia mydas) genetic diversity at Paranaguá Estuarine Complex feeding grounds in Brazil Genet. Mol. Biol. Jordão,Juliana Costa; Bondioli,Ana Cristina Vigliar; Guebert,Flavia Maria; Thoisy,Benoit de; Toledo,Lurdes Foresti de Almeida. Sea turtles are marine reptiles that undertake long migrations through their life, with limited information regarding juvenile stages. Feeding grounds (FGs), where they spend most of their lives, are composed by individuals from different natal origins, known as mixed stock populations. The aim of this study was to assess genetic composition, natal origins and demographic history of juvenile green turtles (Chelonia mydas) at the Paranaguá Estuarine Complex (PEC), Brazil, considered a Natural World Heritage site. Tissue samples of stranded animals were collected (n = 60), and 700 bp mitochondrial DNA sequences were generated and compared to shorter sequences from previously published studies. Global exact tests of differentiation revealed significant... Tipo: Info:eu-repo/semantics/report Palavras-chave: Chelonia mydas; MtDNA; Feeding grounds; Mixed stock analysis; Connectivity. Ano: 2015 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572015000300346 Habitat Shape, Species Invasions, and Reserve Design: Insights from Simple Models Ecology and Society Cumming, Graeme; University of Florida; cummingg@wec.ufl.edu. Species invasions have become a major threat to global biodiversity. We currently lack a general theory of species invasions that allows us to make useful predictions about when and where invasions will occur, whether they will be successful, and whether they will alter ecosystem function in invaded habitats. One line of enquiry in developing such a theory is to focus on the characteristics of successful invaders. A second, complementary approach is to examine habitats of interest more closely and ask how the properties of the habitat that is being invaded affect the likelihood of invasion success. In this paper, I consider the importance of habitat shape (also termed "habitat topology" or "habitat geometry") as a variable affecting the dispersal and... Tipo: Peer-Reviewed Reports Palavras-chave: Cellular automaton model; Colonization; Connectivity; Dispersal; Habitat complexity; Habitat geometry; Habitat shape; Landscape ecology; Reaction-diffusion model; Reserve design; Reserve networks; Species invasion. Ano: 2002 Identificación y caracterización de corredores y conectividad para el jaguar (Panthera onca) entre las sierras del Abra-Tanchipa y Cerro Alto, San Luis Potosí. Colegio de Postgraduados Flores Barrera, César Iván. El jaguar es el felino más grande del continente Americano, por lo que tiene demandas alimenticias de grandes presas y hábitats extensos, esto propicia conflictos con los humanos debido a la fragmentación de su hábitat. En México se encuentra enlistado como en peligro de extinción en la NOM-059-SEMARNAT-2010. Por lo que es importante determinar si hay parches de hábitat que sean utilizados por el jaguar como corredores dentro de la Sierra Madre Oriental; específicamente, en la región que hay entre la Sierra del Abra-Tanchipa y la Sierra de Cerro Alto. El objetivo de este estudio fue determinar la existencia de un corredor para jaguar (Panthera onca) entre las Sierras del Abra-Tanchipa y Cerro Alto, del municipio de Ciudad Valles, San Luis Potosí. El... Palavras-chave: Jaguar; Corredores; Conectividad; Hábitat; Fragmentación; Corridors; Connectivity; Habitat; Fragmentation; Ganadería; Maestría. Ano: 2014 URL: http://hdl.handle.net/10521/2385 Identification of nurseries areas of juvenile Prochilodus lineatus (Valenciennes, 1836) (Characiformes: Prochilodontidae) by scale and otolith morphometry and microchemistry Neotropical Ichthyology Avigliano,Esteban; Fortunato,Roberta Callicó; Biolé,Fernanda; Domanico,Alejandro; Simone,Silvia De; Neiff,Juan J.; Volpedo,Alejandra V.. ABSTRACT The streaked prochilod Prochilodus lineatus (Valenciennes) is a commercially freshwater species from South America, distributed in the Plata basin. In the present work the morphometry (circularity, rectangularity, form factor, OL/OW and ellipticity indices) and chemistry (Sr:Ca, Ba:Ca, Zn:Ca) of lapilli otolith, and geometric morphometry of scales of streaked prochilod juveniles, in two sites in the Plata basin (Uruguay River and Estrella Wetland), were compared to determine if they are area-specific and to identify possible breeding areas. Otolith Ba:Ca ratios was 0.017±0.003 mmol/mol for Uruguay River while for Estrella Wetland individuals was bellow the detection limits. Zn:Ca ratios tended to be higher for the latter (0.03±0.002 mmol/mol).... Tipo: Info:eu-repo/semantics/article Palavras-chave: Connectivity; Geocrochemistry; Geometric morphometrics; Plata Basin; Streaked prochilod. Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252016000300207 Impacts of climate change on the complex life cycles of fish ArchiMer Petitgas, Pierre; Rijnsdorp, Adriaan D.; Dickey-collas, Mark; Engelhard, Georg H.; Peck, Myron A.; Pinnegar, John; Drinkwater, Kenneth F.; Huret, Martin; Nash, Richard. To anticipate the response of fish populations to climate change, we developed a framework that integrates requirements in all life stages to assess impacts across the entire life cycle. The framework was applied on plaice (Pleuronectes platessa) and Atlantic herring (Clupea harengus) in the North Sea, Atlantic cod (Gadus morhua) in the Norwegian/Barents Seas and European anchovy (Engraulis encrasicolus) in the Bay of Biscay. In each case study, we reviewed habitats required by each life stage, habitat availability, and connectivity between habitats. We then explored how these could be altered by climate change. We documented environmental processes impacting habitat availability and connectivity, providing an integrated view at the population level and in... Tipo: Text Palavras-chave: Connectivity; Habitat; Eco-physiology; Anchovy; Herring; Plaice; Cod. Ano: 2013 URL: http://archimer.ifremer.fr/doc/00118/22935/20798.pdf Registros recuperados: 53 Primeira ... 1 2 3 ... Última

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