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1,235 results for “Brazilian Amazon”
Checklist and distribution of Pitcairnia species in the Brazilian Amazon
<p>We present here the checklist of Pitcairnia (Bromeliaceae) species in the Brazilian Amazon. It contains 24 species that occur in the Amazon basin and 211 distribution points. These two files contain information on the taxonomy, collection and geographic references of these taxa.</p>
A large-scale assessment of ant diversity across the Brazilian Amazon Basin: integrating geographic, ecological, and morphological drivers of sampling bias
<p>Tropical ecosystems are often biodiversity hotspots, and invertebrates represent the main underrepresented component of diversity in large-scale analyses. This problem is partly related to the scarcity of data widely available to conduct these studies and the lack of systematic organization of knowledge about invertebrates' distributions in biodiversity hotspots. Here, we introduce and analyze a comprehensive data compilation of Amazonian ant diversity. Using records from 1817 to 2020 from both published and unpublished sources, we describe the diversity and distribution of ant species in the Brazilian Amazon Basin. Further, using high-definition images and data from taxonomic publications, we build a comprehensive database of morphological traits for the ant species that occur in the region. In total, we recorded 1,067 nominal species in the Brazilian Amazon Basin, with sampling locations strongly biased by access routes, urban centers, research institutions, and major infrastructure projects. Large areas where ant sampling is non-existent represent about 52% of the basin and are concentrated mainly in the North, Southeastern, and Western Brazilian Amazon. We found that distance to roads is the main driver of ant sampling in the Amazon. Contrary to our expectations, morphological traits had lower predictive power in predicting sample bias than purely geographic variables. However, when geographic predictors were controlled, habitat stratum and traits contribute to explain the remaining variance. More species were recorded in better-sampled areas, but species richness estimation models suggest that areas in South Amazonian edge forests are associated with especially high species richness. Our results represent the first trait-based, large-scale study for insects in Amazonian forests and a starting point for macroecological studies focusing on insect diversity in the Amazon Basin.</p>
Dominant Rural Technological Trajectories (TTs) dataset at municipality level of the Brazilian Legal Amazon (BLA)
<p>This dataset contains the dominant technological trajectories (TTs) of the Brazilian Legal Amazon (BLA) municipalities for the years of 1995, 2006 and 2017. The dominant trajectory is the one, among the six identified by Costa (2021), that is economically most important in the municipality. The relative share of the Gross Value of Rural Production of the trajectory in the total Gross Value of Rural Production in the municipality was taken as a proxy of economic importance. From the tabulation of the datasets in Costa (2022), the dominant technological trajectory was identified, it means, considering the methodology used, which of the six TTs was responsible for over 50% of the municipal Gross Value of Rural Production. The dominant TTs were calculated using the official municipal grid for the year the agricultural census was carried out.</p> <p>The dataset is organized as a .csv table, for each year (1995, 2006 and 2017), with a geographic key for each municipality (6-digit municipality code, 2-digit state code), that can be easily linked with municipality available shapefiles and other datasets. </p> <p>References:</p> <p>Costa, F. A. Structural diversity and change in rural Amazonia: a comparative assessment of the technological trajectories based on agricultural censuses (1995, 2006 and 2017). <strong>Nova econ</strong>. 31 (02), May-Aug 2021, doi:10.1590/0103-6351/6373.</p> <p>Costa, F. A, (2022). Database of Rural Technological Trajectories of the Legal Amazon delimited by the Method of Differentiation and Structural Signification of Rural Production (M-DASTRU). <strong>Zenodo.</strong> DOI: 10.5281/zenodo.7035753</p>
Fig. 2 in Morphological and DNA-based description of TRiChophoRomyiA peixotoi n. sp. (Diptera: Psychodidae), a new sand fly species from the Brazilian Amazon
Fig. 2 Wing of Trichophoromyia peixotoi n. sp. holotype (scale bar: 500 μm)
Common ant species dominate morphospace: unraveling the morphological diversity in the Brazilian Amazon Basin
<p>Rare plant and vertebrate species have been documented to contribute disproportionately to the total morphological structure of species assemblages. These species often possess morphologically extreme traits and occupy the boundaries of morphological space. As rare species are at greater risk of extinction than more widely distributed species, human-induced disturbances can strongly affect ecosystem functions related to assemblage morphology. Here, we assess to what extent the distributions of ant morphological traits are supported by morphologically extreme species and how they are distributed among habitats in a global biodiversity hotspot, the Brazilian Amazon. We used a morphological database comprising 15 continuous morphological traits and 977 expert-validated ant species distributed across the Brazilian Amazon. We produced species range estimates using species distribution models or alpha hulls (when few records were available). Next, we conducted a principal components analysis to combine traits into a space with reduced dimensionality (morphospace). Then, we identified morphologically extreme species in this space and quantified their contributions to morphological diversity across different habitat types in the Brazilian Amazon Basin. We identified 114 morphologically extreme ant species across the Amazon ant morphospace. These species also accounted for a large percentage of morphospace filling, exceeding 99% representation in the most disturbed habitats in the Amazon. Our results suggest that a few morphologically extreme species capture most of the variation in ant morphology and therefore, the spectrum of ecosystem functions performed by ants in the Brazilian Amazon Basin. Further, unlike for many other groups, these extreme morphologies were represented by the set of most common species. These results suggest greater functional redundancy and resilience in Brazilian Amazon ants, but more broadly, they contribute to our understanding of ecological processes that sustain ecosystem functions.</p>
Figure 1 in Colonization by Streptococcus pneumoniae among children in Porto Velho, Rondônia, Western Brazilian Amazon
Figure 1. Location of the study area.
Fig. 1 in Frugivorous flies (Diptera: Tephritidae, Lonchaeidae) associated with fruit production on Ilha de Santana, Brazilian Amazon
Fig. 1. Sampling sites of fruits on Ilha de Santana, state of Amapá, Brazil (Jan to Jul 2015).
Fig. 2 in Description of a new and highly distinctive genus and species of Euptychiina (Lepidoptera: Nymphalidae: Satyrinae) from the Brazilian southern Amazon
Fig. 2. Lateral view of the head of Cristalinaia vitoria gen. et sp. nov.
Fig. 2 in Metapolybia araujoi, a new species of swarming social wasp from the Brazilian Amazon rainforest (Vespidae: Polistinae)
Fig. 2. Labels found attached to the specimen.
Fig. 1 in A survey of necrophagous blowflies (Diptera: Oestroidea) in the Amazonas-Negro interfluvial region (Brazilian Amazon)
Fig. 1. Collecting sites and sampling points in the Amazonas state, Brazil.
Fig. 2 in A survey of necrophagous blowflies (Diptera: Oestroidea) in the Amazonas-Negro interfluvial region (Brazilian Amazon)
Fig. 2. Rarefaction curve for necrophagous blowflies in the three interfluvial collecting sites.
FIGURE 1 in Diversity of Loricariidae (Actinopterygii: Siluriformes) assemblages in two Conservation Areas of the Middle Xingu River, Brazilian Amazon, and their suitability for sustainable ornamental fisheries
FIGURE 1 | Map of the collection areas in the Xingu and Iriri River Extractive Reserves.
Epidemiology, Biodiversity, and Technological Trajectories in the Brazilian Amazon: From Malaria to COVID-19
<p>Dataset of the publication: Codeço CT, Dal’Asta AP, Rorato AC, Lana RM, Neves TC, Andreazzi CS,<br> Barbosa M, Escada MIS, Fernandes DA, Rodrigues DL, Reis IC, Silva-Nunes M, Gontijo AB,<br> Coelho FC and Monteiro AMV (2021) Epidemiology, Biodiversity, and Technological Trajectories in the<br> Brazilian Amazon: From Malaria to COVID-19. Front. Public Health 9:647754. doi: 10.3389/fpubh.2021.647754</p> <p> </p>
Figure 3 in Mycophagous Drosophilidae (Diptera) guild and their hosts in the Brazilian Amazon
Figure 3. Examples of fungal species recorded for Caxiuanã National Forest Reserve: (A) Favolus tenuiculus, (B) Ganoderma australe, (C) Rigidoporus lineatus and (D) Marasmiellus sp. 4.
Figure 1 in Mycophagous Drosophilidae (Diptera) guild and their hosts in the Brazilian Amazon
Figure 1. Species accumulation curves for the observed richness of the Drosophilidae guild from Caxiuanã National Forest Reserve relative to curves generated using Jackknife 1 (A) and Bootstrap (B) estimators.
Figure 106 in Synopsis of the Oryctini (Coleoptera: Scarabaeidae: Dynastinae) from the Brazilian Amazon
Figure 106. Distribution of Strategus validus in Brazilian Amazonia.
Figure 101 in Synopsis of the Oryctini (Coleoptera: Scarabaeidae: Dynastinae) from the Brazilian Amazon
Figure 101. Distribution of Strategus surinamensis surinamensis in Brazilian Amazonia.
Figure 94 in Synopsis of the Oryctini (Coleoptera: Scarabaeidae: Dynastinae) from the Brazilian Amazon
Figure 94. Distribution of Strategus surinamensis hirtus in Brazilian Amazonia.
Figure 89 in Synopsis of the Oryctini (Coleoptera: Scarabaeidae: Dynastinae) from the Brazilian Amazon
Figure 89. Distribution of Strategus aloeus in Brazilian Amazonia.
Figure 76 in Synopsis of the Oryctini (Coleoptera: Scarabaeidae: Dynastinae) from the Brazilian Amazon
Figure 76. Distribution of Podischnus agenor in Brazilian Amazonia.
ScienceDex guides
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These curated guides explain access requirements, typical timelines, costs, and reuse considerations for widely used research datasets.
Allen Brain Atlas
Allen Brain Atlas is an Allen Institute collection of brain map atlases, datasets, APIs, and analysis tools covering mouse, human, and non-human primate brain resources.
Annotated Behaviour and Observability Dataset (ABODe)
ABODe is a University of Edinburgh DataShare dataset for behavior classification in group-housed mice using home-cage video, identities, bounding boxes, ground-plate positions, and annotator labels.
DANDI Archive for NWB datasets
DANDI is a BRAIN Initiative archive for publishing and sharing neurophysiology data, including electrophysiology, optophysiology, and behavioral data packaged as NWB and related standards.
International Brain Laboratory public data
The International Brain Laboratory public data releases expose standardized mouse decision-making experiments, including Neuropixels recordings, widefield calcium imaging, behavior, and session metadata accessed through the ONE API.
OpenNeuro
OpenNeuro is a free, open platform for sharing neuroimaging datasets, with public search, dataset pages, and download paths for web, S3, DataLad, and the OpenNeuro CLI.