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  • 1
    In: Latin American Journal of Aquatic Mammals, Sociedad Latinoamericana de Especialistas en Mamiferos Acuaticos (SOLAMAC), Vol. 11, No. 1-2 ( 2017-01-08), p. 16-28
    Abstract: This report compiles the current information on morphology, genetics, stable isotopes, acoustics and parasites of bottlenose dolphins along the Southwest Atlantic Ocean (SWAO), which includes waters of Brazil, Uruguay and Argentina. The authors also briefly review the proposed taxonomy for the genus along the Atlantic coast of South America.
    Type of Medium: Online Resource
    ISSN: 2236-1057 , 1676-7497
    Language: Unknown
    Publisher: Sociedad Latinoamericana de Especialistas en Mamiferos Acuaticos (SOLAMAC)
    Publication Date: 2017
    detail.hit.zdb_id: 2638984-8
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  • 2
    Online Resource
    Online Resource
    Wiley ; 2019
    In:  Aquatic Conservation: Marine and Freshwater Ecosystems Vol. 29, No. 12 ( 2019-12), p. 2045-2056
    In: Aquatic Conservation: Marine and Freshwater Ecosystems, Wiley, Vol. 29, No. 12 ( 2019-12), p. 2045-2056
    Abstract: Estuaries are critical to the life histories and development of many marine species, and support some of the most productive aquatic ecosystems. However, owing to their geographic accessibility, many estuaries face considerable anthropogenic threats, which can be exacerbated in developing nations. Understanding the ecological implications of anthropogenic activities as a precursor to dedicated conservation activities requires comprehensive assessments of baseline trophic relationships. This study addresses a shortfall in such information for two tropical, coastal ecosystems globally identified as priority areas for biodiversity conservation: the Paranaguá estuarine complex; and the Cananéia–Iguape estuarine lagoon system in southern Brazil. Ecological relationships were investigated through carbon and nitrogen stable isotope (δ 13 C and δ 15 N) determination in sediments, plant fragments and the muscle tissues of marine species occupying different trophic levels, including benthic invertebrates, ichthyofauna ( Stellifer rastrifer , Paralonchurus brasiliensis , and Isopisthus parvipinnis ), and delphinids ( Sotalia guianensis and Pontoporia blainvillei ). Isotope ratios facilitated distinguishing plant fragments, sediments (which were terrestrially influenced) and biota (predominantly marine influenced). However, despite variation among anthropogenic stressors, isotope ratios did not vary between the studied estuaries, implying similar impacts on trophic relationships which might reflect some inter‐estuary mixing. All ichthyofauna and the delphinids had similar generalist diets and shared the same trophic niche, which may reflect their consistent spatio‐temporal distributions and habitat patterns in the estuaries. The data illustrate the utility of isotopically characterizing biodiversity‐hotspot estuaries as a mechanism for rapidly assessing ecological relationships between key species and regional habitats. Such an approach can be used to evaluate ecological connectivity as a baseline for management and might be applied more broadly, embracing multiple regions as part of estuarine and coastal biome conservation efforts.
    Type of Medium: Online Resource
    ISSN: 1052-7613 , 1099-0755
    URL: Issue
    Language: English
    Publisher: Wiley
    Publication Date: 2019
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  • 3
    Online Resource
    Online Resource
    Oxford University Press (OUP) ; 2016
    In:  Journal of Mammalogy Vol. 97, No. 2 ( 2016-03-23), p. 599-610
    In: Journal of Mammalogy, Oxford University Press (OUP), Vol. 97, No. 2 ( 2016-03-23), p. 599-610
    Abstract: Home range studies provide significant insights on social organization and interactions, limiting resources and habitat use. Knowledge on home range and habitat use by Guiana dolphins, Sotalia guianensis , is still scarce. The aim of this study was to identify and analyze individual’s home ranges of Guiana dolphins in the Cananéia Estuary (~25°03′S, 47°55′W), located in southeastern Brazil. Photo-identification efforts were conducted between 2000 and 2010. From a total of 135,918 pictures taken, 34,086 (25%) were useful for individual identification. Two-hundred and five individuals were cataloged based on permanent notches along dorsal fin borders. Of the cataloged individuals, 31 had been identified a minimum of 20 times, on distinct dates, prior to this analysis. Home ranges were estimated for these individuals using 4 methods: minimum convex polygon (MCP), adaptive kernel with least-squares cross-validation (AKLSCV), fixed kernel with reference bandwidth (FKHREF), and fixed kernel with least-squares cross-validation (FKLSCV). The sizes of the estimated home ranges varied between 2.2 and 43.8 km 2 ( X¯ = 17.5 km 2 ) with MCP, between 0.8 and 82.5 km 2 ( X¯ = 15.6 km 2 ) with AKLSCV, between 3.9 and 244 km 2 ( X¯ = 72.4 km 2 ) with FKHREF, and from 0.6 to 70.6 km 2 ( X¯ = 13.5 km 2 ) with FKLSCV. Significant differences in size and shape of the generated areas were detected when comparing the 4 tested methods. Variation of individual’s home range sizes and an extensive overlap among home ranges of different Guiana dolphins in the Cananéia Estuary provide evidence that the region supports important resources for this species. Therefore, preventing habitat loss in this region is essential to guaranteeing the persistence of this population. O estudo sobre o uso de área pode fornecer informações sobre organização social e interações, recursos limitantes e sobre o uso de habitat. Ainda é escasso o conhecimento sobre como o boto-cinza, Sotalia guianensis usa seu habitat. O objetivo deste estudo foi identificar e analisar as áreas de uso individuais de S. guianensis no estuário de Cananéia (~25°03′S; 47°55′W), localizado no sudeste brasileiro. Os esforços de foto-identificação foram realizados entre os anos de 2000 e 2010. De um total de 135.918 fotografias tomadas, 34.086 (25%) foram úteis para identificações individuais. Duzentos e cinco indivíduos foram catalogados através das marcas permanentes presentes em suas nadadeiras dorsais. Dentre os indivíduos catalogados, 31 foram identificados ao menos em 20 ocasiões, em dias distintos, antes destas análises. As áreas de uso foram estimadas para estes indivíduos utilizando quatro métodos distintos: mínimo polígono convexo (MPC), kernel adaptativo com largura determinada pelo método de validação cruzada de quadrados mínimos (AKLSCV), kernel fixo com largura de referência (FKHREF) e kernel fixo com largura determinada pelo método de validação cruzada de quadrados mínimos (FKLSCV). Os tamanhos das áreas de uso geradas variaram entre 2,2 e 43,8 km 2 ( X¯ = 17,5 km 2 ) com o uso do MPC, 0,8 e 82,5 km 2 ( X¯ = 15,6 km 2 ) com o uso do AKLSCV, 3,9 e 244 km 2 ( X¯ = 72,4 km 2 ) com o uso do FKHREF, e de 0,6 a 70,6 km 2 ( X¯ = 13,5 km 2 ) com o uso do FKLSCV. Foram detectadas diferenças significativas no tamanho e formato das áreas geradas pelos quatro métodos testados. Variações nos tamanhos das áreas de uso individuais e a extensa sobreposição entre diferentes áreas de uso dos botos-cinza no estuário de Cananéia fornecem evidências de que a região provê recursos importantes para esta espécie. Portanto, prevenir a perda de habitat na região é essencial para garantir a persistência dessa população.
    Type of Medium: Online Resource
    ISSN: 1545-1542 , 0022-2372
    RVK:
    Language: English
    Publisher: Oxford University Press (OUP)
    Publication Date: 2016
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  • 4
    Online Resource
    Online Resource
    Cambridge University Press (CUP) ; 2019
    In:  Journal of the Marine Biological Association of the United Kingdom Vol. 99, No. 5 ( 2019-08), p. 1231-1236
    In: Journal of the Marine Biological Association of the United Kingdom, Cambridge University Press (CUP), Vol. 99, No. 5 ( 2019-08), p. 1231-1236
    Abstract: Urbanization and intense vessel traffic in coastal areas are obstacles for right whales when selecting breeding and calving grounds. Human activities might be the main cause for the recently observed drop in right whale sightings along the south-eastern coast of Brazil. Information concerning the biology and the activities that can potentially affect the presence of individuals along the coast are essential for management purposes, as well as for the recovery of the species stocks after a period of whaling pressure. This study correlated the occurrence of right whales in the northern limit of the breeding ground in the South-western Atlantic Ocean with local geomorphology, degree of urbanization and oceanographic features to better identify suitable areas for use by these whales. The study area was divided into 14 sub-areas based on local coastal geomorphology and discharge of large rivers. The following five ranking criteria were applied to each sub-area: presence of whaling stations and whaling activity in the past; presence and activity of ports; protection from swell, coastal slope and composition of the bottom substrate. The sub-areas that offered conditions conducive to the presence of right whales received higher scores. The proposed criteria were validated by overlapping the ranking scores with the records of right whales sighted in each sub-area. In south-eastern Brazil, protected areas with sandy bottom and gentle slope were associated with more sightings of female-calf pairs. The criteria can be used as a primary diagnostic indicating suitable sub-areas for right whales in poorly known breeding grounds.
    Type of Medium: Online Resource
    ISSN: 0025-3154 , 1469-7769
    RVK:
    Language: English
    Publisher: Cambridge University Press (CUP)
    Publication Date: 2019
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  • 5
    Online Resource
    Online Resource
    FapUNIFESP (SciELO) ; 2017
    In:  Brazilian Journal of Oceanography Vol. 65, No. 4 ( 2017-12), p. 605-613
    In: Brazilian Journal of Oceanography, FapUNIFESP (SciELO), Vol. 65, No. 4 ( 2017-12), p. 605-613
    Abstract: Resumo O objetivo deste estudo foi avaliar a presença de cetáceos em águas costeiras nas proximidades da Unidade de Conservação (UC) marinha do Parque Estadual Marinho da Laje de Santos (PEMLS), localizado no sudeste do Brasil. Cruzeiros oceanográficos foram conduzidos entre junho de 2013 e junho de 2015 seguindo um transecto pré-definido para cobrir toda a UC, assim como suas bordas. Um total de 24 embarques foi realizado, rendendo 18 avistagens de cetáceos das seguintes espécies: golfinho-pintado-do-Atlântico (Stenella frontalis) (12), golfinho-de-dentes-rugosos (Steno bredanensis) (2), golfinho-comum (Delphinus delphis) (1), baleia-de-Bryde (Balaenoptera edeni) (2) e baleia-minke-comum (Balaenoptera acutorostrata) (1). As avistagens de S. frontalis estiveram positivamente correlacionadas com a profundidade da água (Teste Mantel; r = 0.8072; p 〈 0.05). Indivíduos fotoidentificados moveram-se para dentro e para fora da UC, permanecendo pela região de estudo nos dois anos de investigação. Marcas cutâneas de origem desconhecida e denominadas em literatura como marcas cutâneas de “Paisley” foram observadas em D. delphis. Considerando que o PEMLS tem sido utilizado como um importante ponto para mergulhadores em lazer, é recomendável que as avistagens de cetáceos continuem sendo obtidas em futura parceria com as operadoras de mergulho, assim como que se utilize a acústica passiva para detectar a presença de cetáceos na região quando observadores não estiverem ali.
    Type of Medium: Online Resource
    ISSN: 1982-436X
    Language: Unknown
    Publisher: FapUNIFESP (SciELO)
    Publication Date: 2017
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  • 6
    Online Resource
    Online Resource
    FapUNIFESP (SciELO) ; 2017
    In:  Brazilian Journal of Oceanography Vol. 65, No. 4 ( 2017-12), p. 530-531
    In: Brazilian Journal of Oceanography, FapUNIFESP (SciELO), Vol. 65, No. 4 ( 2017-12), p. 530-531
    Type of Medium: Online Resource
    ISSN: 1982-436X
    Language: Unknown
    Publisher: FapUNIFESP (SciELO)
    Publication Date: 2017
    detail.hit.zdb_id: 730380-4
    detail.hit.zdb_id: 2465333-0
    detail.hit.zdb_id: 2669468-2
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  • 7
    Online Resource
    Online Resource
    FapUNIFESP (SciELO) ; 2016
    In:  Brazilian Journal of Oceanography Vol. 64, No. 1 ( 2016-03), p. 105-110
    In: Brazilian Journal of Oceanography, FapUNIFESP (SciELO), Vol. 64, No. 1 ( 2016-03), p. 105-110
    Type of Medium: Online Resource
    ISSN: 1679-8759
    Language: Unknown
    Publisher: FapUNIFESP (SciELO)
    Publication Date: 2016
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    detail.hit.zdb_id: 2465333-0
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    SSG: 12
    SSG: 7,36
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  • 8
    In: Ecology, Wiley, Vol. 100, No. 7 ( 2019-07)
    Abstract: Xenarthrans—anteaters, sloths, and armadillos—have essential functions for ecosystem maintenance, such as insect control and nutrient cycling, playing key roles as ecosystem engineers. Because of habitat loss and fragmentation, hunting pressure, and conflicts with domestic dogs, these species have been threatened locally, regionally, or even across their full distribution ranges. The Neotropics harbor 21 species of armadillos, 10 anteaters, and 6 sloths. Our data set includes the families Chlamyphoridae (13), Dasypodidae (7), Myrmecophagidae (3), Bradypodidae (4), and Megalonychidae (2). We have no occurrence data on Dasypus pilosus (Dasypodidae). Regarding Cyclopedidae, until recently, only one species was recognized, but new genetic studies have revealed that the group is represented by seven species. In this data paper, we compiled a total of 42,528 records of 31 species, represented by occurrence and quantitative data, totaling 24,847 unique georeferenced records. The geographic range is from the southern United States, Mexico, and Caribbean countries at the northern portion of the Neotropics, to the austral distribution in Argentina, Paraguay, Chile, and Uruguay. Regarding anteaters, Myrmecophaga tridactyla has the most records ( n  = 5,941), and Cyclopes sp. have the fewest ( n  = 240). The armadillo species with the most data is Dasypus novemcinctus ( n  = 11,588), and the fewest data are recorded for Calyptophractus retusus ( n  = 33). With regard to sloth species, Bradypus variegatus has the most records ( n  = 962), and Bradypus pygmaeus has the fewest ( n  = 12). Our main objective with Neotropical Xenarthrans is to make occurrence and quantitative data available to facilitate more ecological research, particularly if we integrate the xenarthran data with other data sets of Neotropical Series that will become available very soon (i.e., Neotropical Carnivores, Neotropical Invasive Mammals, and Neotropical Hunters and Dogs). Therefore, studies on trophic cascades, hunting pressure, habitat loss, fragmentation effects, species invasion, and climate change effects will be possible with the Neotropical Xenarthrans data set. Please cite this data paper when using its data in publications. We also request that researchers and teachers inform us of how they are using these data.
    Type of Medium: Online Resource
    ISSN: 0012-9658 , 1939-9170
    URL: Issue
    RVK:
    Language: English
    Publisher: Wiley
    Publication Date: 2019
    detail.hit.zdb_id: 1797-8
    detail.hit.zdb_id: 2010140-5
    SSG: 12
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  • 9
    In: Ecology, Wiley, Vol. 100, No. 6 ( 2019-06)
    Abstract: Scientists have long been trying to understand why the Neotropical region holds the highest diversity of birds on Earth. Recently, there has been increased interest in morphological variation between and within species, and in how climate, topography, and anthropogenic pressures may explain and affect phenotypic variation. Because morphological data are not always available for many species at the local or regional scale, we are limited in our understanding of intra‐ and interspecies spatial morphological variation. Here, we present the ATLANTIC BIRD TRAITS , a data set that includes measurements of up to 44 morphological traits in 67,197 bird records from 2,790 populations distributed throughout the Atlantic forests of South America. This data set comprises information, compiled over two centuries (1820–2018), for 711 bird species, which represent 80% of all known bird diversity in the Atlantic Forest. Among the most commonly reported traits are sex ( n  = 65,717), age ( n  = 63,852), body mass ( n  = 58,768), flight molt presence ( n  = 44,941), molt presence ( n  = 44,847), body molt presence ( n  = 44,606), tail length ( n  = 43,005), reproductive stage ( n  = 42,588), bill length ( n  = 37,409), body length ( n  = 28,394), right wing length ( n  = 21,950), tarsus length ( n  = 20,342), and wing length ( n  = 18,071). The most frequently recorded species are Chiroxiphia caudata ( n  = 1,837), Turdus albicollis ( n  = 1,658), Trichothraupis melanops ( n  = 1,468), Turdus leucomelas ( n  = 1,436), and Basileuterus culicivorus ( n  = 1,384). The species recorded in the greatest number of sampling localities are Basileuterus culicivorus ( n  = 243), Trichothraupis melanops ( n  = 242), Chiroxiphia caudata ( n  = 210), Platyrinchus mystaceus ( n  = 208), and Turdus rufiventris ( n  = 191). ATLANTIC BIRD TRAITS ( ABT ) is the most comprehensive data set on measurements of bird morphological traits found in a biodiversity hotspot; it provides data for basic and applied research at multiple scales, from individual to community, and from the local to the macroecological perspectives. No copyright or proprietary restrictions are associated with the use of this data set. Please cite this data paper when the data are used in publications or teaching and educational activities.
    Type of Medium: Online Resource
    ISSN: 0012-9658 , 1939-9170
    URL: Issue
    RVK:
    Language: English
    Publisher: Wiley
    Publication Date: 2019
    detail.hit.zdb_id: 1797-8
    detail.hit.zdb_id: 2010140-5
    SSG: 12
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  • 10
    In: Ecology, Wiley, Vol. 100, No. 2 ( 2019-02)
    Abstract: Epiphytes are hyper‐diverse and one of the frequently undervalued life forms in plant surveys and biodiversity inventories. Epiphytes of the Atlantic Forest, one of the most endangered ecosystems in the world, have high endemism and radiated recently in the Pliocene. We aimed to (1) compile an extensive Atlantic Forest data set on vascular, non‐vascular plants (including hemiepiphytes), and lichen epiphyte species occurrence and abundance; (2) describe the epiphyte distribution in the Atlantic Forest, in order to indicate future sampling efforts. Our work presents the first epiphyte data set with information on abundance and occurrence of epiphyte phorophyte species. All data compiled here come from three main sources provided by the authors: published sources (comprising peer‐reviewed articles, books, and theses), unpublished data, and herbarium data. We compiled a data set composed of 2,095 species, from 89,270 holo/hemiepiphyte records, in the Atlantic Forest of Brazil, Argentina, Paraguay, and Uruguay, recorded from 1824 to early 2018. Most of the records were from qualitative data (occurrence only, 88%), well distributed throughout the Atlantic Forest. For quantitative records, the most common sampling method was individual trees (71%), followed by plot sampling (19%), and transect sampling (10%). Angiosperms (81%) were the most frequently registered group, and Bromeliaceae and Orchidaceae were the families with the greatest number of records (27,272 and 21,945, respectively). Ferns and Lycophytes presented fewer records than Angiosperms, and Polypodiaceae were the most recorded family, and more concentrated in the Southern and Southeastern regions. Data on non‐vascular plants and lichens were scarce, with a few disjunct records concentrated in the Northeastern region of the Atlantic Forest. For all non‐vascular plant records, Lejeuneaceae, a family of liverworts, was the most recorded family. We hope that our effort to organize scattered epiphyte data help advance the knowledge of epiphyte ecology, as well as our understanding of macroecological and biogeographical patterns in the Atlantic Forest. No copyright restrictions are associated with the data set. Please cite this Ecology Data Paper if the data are used in publication and teaching events.
    Type of Medium: Online Resource
    ISSN: 0012-9658 , 1939-9170
    URL: Issue
    RVK:
    Language: English
    Publisher: Wiley
    Publication Date: 2019
    detail.hit.zdb_id: 1797-8
    detail.hit.zdb_id: 2010140-5
    SSG: 12
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