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1,865 results for “northeastern Brazil”
Fig. 19 in Aspects of fishing and reproduction of the black grouper Mycteroperca bonaci (Poey, 1860) (Serranidae: Epinephelinae) in the Northeastern Brazil
Fig. 19. Monthly catch of the Mycteroperca bonaci for the states of Rio Grande do Norte (North area) and Pernambuco (South Area) from Northeast Fisheries Statistics Bulletin (IBAMA). RN: Rio Grande do Norte/year, PE: Pernambuco/year.
Fig. 17 in Aspects of fishing and reproduction of the black grouper Mycteroperca bonaci (Poey, 1860) (Serranidae: Epinephelinae) in the Northeastern Brazil
Fig. 17. Periodicity of the "correção" in Caiçara do Norte (CAI), Recife (REC), São José da Coroa Grande (SJC) and Paripueira (PAR) according to the interviewees.
Fig. 3 in Aspects of fishing and reproduction of the black grouper Mycteroperca bonaci (Poey, 1860) (Serranidae: Epinephelinae) in the Northeastern Brazil
Fig. 3. Size distribution of absolute frequency (columns) and relative cumulated frequency (line) for black grouper Mycteroperca bonaci caught in North area.
Fig. 7 in Aspects of fishing and reproduction of the black grouper Mycteroperca bonaci (Poey, 1860) (Serranidae: Epinephelinae) in the Northeastern Brazil
Fig. 7. Transverse section of a spent ovary of Mycteroperca bonaci showing oocytes in reabsorption (OR). Stain: H. E.
FIGURE 9 in GUILHERME C. PRADO & RODRIGO L. FERREIRA (2023) Three new troglobitic species of Pseudochthonius Balzan, 1892 (Pseudoscorpiones, Chthoniidae) from northeastern Brazil Zootaxa, 5249 (1), 092-110.
FIGURE 9. Pseudochthonius pali sp. nov. A Google cave region. Satellite view B Google cave general aspect C Live male holotype D Live female paratype.
FIGURE 10 in GUILHERME C. PRADO & RODRIGO L. FERREIRA (2023) Three new troglobitic species of Pseudochthonius Balzan, 1892 (Pseudoscorpiones, Chthoniidae) from northeastern Brazil Zootaxa, 5249 (1), 092-110.
FIGURE 10. Ecological impacts to the subterranean habitat A Deforestation near cave entrance B Vegetal coal furnace.
FIGURE 9 in GUILHERME C. PRADO & RODRIGO L. FERREIRA (2023) Three new troglobitic species of Pseudochthonius Balzan, 1892 (Pseudoscorpiones, Chthoniidae) from northeastern Brazil Zootaxa, 5249 (1), 092-110.
FIGURE 9. Pseudochthonius pali sp. nov. A Google cave region. Satellite view B Google cave general aspect C Live male holotype D Live female paratype.
FIGURE 10 in GUILHERME C. PRADO & RODRIGO L. FERREIRA (2023) Three new troglobitic species of Pseudochthonius Balzan, 1892 (Pseudoscorpiones, Chthoniidae) from northeastern Brazil Zootaxa, 5249 (1), 092-110.
FIGURE 10. Ecological impacts to the subterranean habitat A Deforestation near cave entrance B Vegetal coal furnace.
Fig. 1 in Diversity and distribution of Ludwigia (Onagraceae) in Paraíba State, Northeastern Brazil
Fig. 1. Map of the study area, Paraíba State, northeastern Brazil. Maps by E. de Morais Rodrigues.
Data from: Estimating synchronous demographic changes across populations using hABC and its application for a herpetological community from northeastern Brazil
Many studies propose that Quaternary climatic cycles contracted and /or expanded the ranges of species and biomes. Strong expansion-contraction dynamics of biomes presume concerted demographic changes of associated fauna. The analysis of temporal concordance of demographic changes can be used to test the influence of Quaternary climate on diversification processes. Hierarchical approximate Bayesian computation (hABC) is a powerful and flexible approach that models genetic data from multiple species, and can be used to estimate the temporal concordance of demographic processes. Using available single-locus data we can now perform large-scale analyses, both in terms of number of species and geographic scope. Here we first compared the power of four alternative hABC models for a collection of single-locus data. We found that the model incorporating an a priori hypothesis about the timing of simultaneous demographic change had the best performance. Secondly, we applied the hABC models to a dataset of 7 squamate and 4 amphibian species occurring in the Seasonally Dry Tropical Forests (Caatinga) in Northeastern Brazil, which, according to paleoclimatic evidence, experienced an increase in aridity during the Pleistocene. If this increase was important for the diversification of associated xeric-adapted species, simultaneous population expansions should be evident at the community level. We found a strong signal of synchronous population expansion in the Late Pleistocene, supporting the expansion of the Caatinga during this time. This expansion likely enhanced the formation of communities adapted to high aridity and seasonality and caused regional extirpation of taxa adapted to wet forest.
Figure 2 in Bats in a restinga area in Sergipe, Northeastern Brazil
Figure 2. Campaign sites used to capture bats in the Caju Private Natural Heritage Reserve, Sergipe. (A) Site 1 and (B) Site 2.
Figure 1 in Bats in a restinga area in Sergipe, Northeastern Brazil
Figure 1. Location of the study area. (A) The state of Sergipe with a highlight on the municipality of Itaporanga d'Ajuda; (B) Caju Private Natural Heritage Reserve with an indication of the campaign sites (sites 1 and 2).
Figure 1 in Macrocrustaceans associated with reefs of Phragmatopoma caudata Krøyer in Mörch, 1863 (Polychaeta: Sabellariidae) and rocky shore in the Northeastern Brazil
Figure 1. Study area and collection of macrocrustaceans in colonies of Phragmatopoma caudata KrØyer in Mörch (highlighted by the white square) and rocky shore in the intertidal region of Santa Rita beach, Northeast Brazil.
Figure 4 in Macrocrustaceans associated with reefs of Phragmatopoma caudata Krøyer in Mörch, 1863 (Polychaeta: Sabellariidae) and rocky shore in the Northeastern Brazil
Figure 4. Complex microhabitat in Phragmatopoma caudata KrØyer in Mörch (A, B) and heterogeneous microhabitat in the rocky shore (C), in the intertidal region of Santa Rita beach, Northeast Brazil.
Figure 3 in Macrocrustaceans associated with reefs of Phragmatopoma caudata Krøyer in Mörch, 1863 (Polychaeta: Sabellariidae) and rocky shore in the Northeastern Brazil
Figure 3. Redundancy Analysis triplot (RDA) addressing association of macrocrustacean species according to environmental variables (TEMP: Temperature; SAL: Salinity) on microhabitats: Phragmatopoma caudata KrØyer in Mörch and rocky shore, in Santa Rita beach, Northeast Brazil. Biotic variables: A_ang: Alpheus angulosus, A_bou: Alpheus bouvieri, A_buc: Alpheus buckupi, A_for: Alpheus formosus, A_nut: Alpheus nuttingi, S_fri: Synalpheus fritzmuelleri, C_tib: Calcinus tibicen, C_ant: Clibanarius antillensis, E_bit: Epialtus bituberculatus, M_lae: Macrocoeloma laevigatum, E_gon: Eriphia gonagra, N_bre: Neogonodactylus bredini, P_tra: Pachygrapsus transversus, M_nod: Menippe nodifrons, O_bic: Omalacantha bicornuta, M_for: Mithraculus forceps, M_ hem: Mithrax hemphilli, M_his: Mithrax hispidus, P_lhe: Pitho lherminieri, P_nor: Palaemon northropi, A_ber: Acantholobulus bermudensis, A_sch: Acantholobulus schmitti, E_lim: Eurytium limosum, H_pau: Hexapanopeus paulensis, P_occ: Panopeus occidentalis, P_das: Pilumnus dasypodus, P_ret: Pilumnus reticulatus, P_dep: Plagusia depressa, C_mar: Callinectes marginatus, M_ros: Megalobrachium roseum, P_gre: Pachycheles greeleyi, P_arm: Petrolisthesarmatus, P_gal: Petrolisthesgalathinus, P_bra:Pisidiabrasiliensis, U_nor: Upogebia noronhensis, U_omi: Upogebia omissa, P_spe: Platypodiella spectabilis, W_den: Williamstimpsonia denticulatus.
Figure 2 in Macrocrustaceans associated with reefs of Phragmatopoma caudata Krøyer in Mörch, 1863 (Polychaeta: Sabellariidae) and rocky shore in the Northeastern Brazil
Figure 2. Heatmap estimated by relative abundance of macrocrustacean species in relation to both microhabitats: Phragmatopoma caudata KrØyer in Mörch (PC) and rocky shore (RS), in Santa Rita beach, Northeast Brazil.
FIGURE 2 in A new species of Calacarus Keifer (Acari: Eriophyidae) on papaya in northeastern Brazil
FIGURE 2. Papaya leaves damaged by Calacarus flagelliseta n. sp.
Acoustic and morphological dataset of seven anuran populations of two species from highland forests in Northeastern Brazil
<p>Highlands are of paramount importance to the study of evolution as they are frequently implicated in historical and ecological processes that generate and maintain biological diversity. In northeastern Brazil, sparse rainforest remnants are located in highlands north of the São Francisco River, generally surrounded by the dry and open landscape of the Caatinga biome. Earlier studies suggest that these forests acted as historical refuges to the rainforest fauna and flora, especially during the climatic cycles of the Pleistocene. However, it is still unclear whether populations distributed in distinct highlands experienced phenotypic differentiation as a result of adaptation to the environmental conditions of each forest remnant. In this study, we used two frog species with wide geographic distributions, <em>Dendropsophus oliveirai</em>, a habitat specialist which breeds in permanent ponds, and <em>Physalaemus cuvieri</em>, a habitat generalist which breeds in temporary and permanent lentic environments, as models to investigate the relationships between environmental variation, geographic, genetic, and body size distance with advertisement call variation among populations inhabiting different highlands. We hypothesized that call variation would be strongly influenced by local environmental conditions, as sound signals are frequently adapted to the transmission environment. Our results indicate that acoustic variation among <em>P. cuvieri</em> populations is strongly influenced by environmental variation and moderate by geographic distance. In <em>D. oliveirai</em>, the environment is also the most influential factor in acoustic variation, followed by genetic and morphological variation. Besides that, the association between environmental and geographic factors suggests an indirect effect of geographic distance on acoustic variation in both species through an environmental gradient and also in genetic traits of the habitat specialist species. We believe that selective processes and isolation possibly act together in driving interpopulational acoustic variation with habitat-specific species being more affected by the isolation in suitable habitats.</p>
Figure 2. Megaleporinus macrocephalus, MZUEL 20221, 387.10 in New records of the occurrence of Megaleporinus macrocephalus (Garavello & Britski, 1988) (Characiformes, Anostomidae) from the basins of the Itapecuru and Mearim rivers in Maranhão, Northeastern Brazil
Figure 2. Megaleporinus macrocephalus, MZUEL 20221, 387.10 mm SL.
FIGURE 1 in Bats in settlements from an atlantic forest area in northeastern Brazil
FIGURE 1: Map of Guaribas Biological Reserve (GRB) and the villages sampled.
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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.