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1,235 results for “Brazilian Amazon”
Distribution. Known from scattered localities in lowlands of N & E South America, from E slopes of Andes in Venezuela, the Guianas, N Peru, and W Brazilian Amazon. in Molossidae
Distribution. Known from scattered localities in lowlands of N & E South America, from E slopes of Andes in Venezuela, the Guianas, N Peru, and W Brazilian Amazon.
Dataset for Projections of Forest Degradation and CO2 Emissions for the Brazilian Amazon
<p>Data and parameters used for generate scenarios of forest degradation and CO2 Emissions for the Brazilian Amazon.</p> <p> Spatial data are available and compiled into cellular spaces. We used LuccME land use modeling framework and INPE-EM emission model to generate theses scenarios. LuccME and INPE-EM versions used to build the model, the new LuccME components we developed and the scripts containing all the parameters are also available. </p> <p> </p>
Data from: Size, species, and fire behavior predict tree and liana mortality from experimental burns in the Brazilian Amazon
<p>Anthropogenic understory fires have affected large areas of tropical forest in recent decades, particularly during severe droughts. Yet, the mechanisms that control fire-induced mortality of tropical trees and lianas remain ambiguous due to the challenges associated with documenting mortality given variation in fire behavior and forest heterogeneity. In a seasonally dry Amazon forest, we conducted a burn experiment to quantify how increasing understory fires alter patterns of stem mortality. From 2004 to 2007, tree and liana mortality was measured in adjacent 50-ha plots that were intact (B0 – control), burned once (B1), and burned annually for 3 years (B3). After 3 years, cumulative tree and liana mortality (≥1 cm dbh) in the B1 (5.8% yr<sup>−1</sup>) and B3 (7.0% yr<sup>−1</sup>) plots significantly exceeded mortality in the control (3.2% yr<sup>−1</sup>). However, these fire-induced mortality rates are substantially lower than those reported from more humid Amazonian forests. Small stems were highly vulnerable to fire-induced death, contrasting with drought-induced mortality (measured in other studies) that increases with tree size. For example, one low-intensity burn killed >50% of stems <10 cm within a year. Independent of stem size, species-specific mortality rates varied substantially from 0% to 17% yr<sup>−1</sup> in the control, 0% to 26% yr<sup>−1</sup> in B1, and 1% to 23% yr<sup>−1</sup> in B3, with several species displaying high variation in their vulnerability to fire-induced mortality. <em>Protium guianense</em> (Burseraceae) exhibited the highest fire-induced mortality rates in B1 and B3, which were 10- and 9-fold greater than the baseline rate. In contrast, <em>Aspidosperma excelsum</em> (Apocynaceae), appeared relatively unaffected by fire (0.3% to 1.0% mortality yr<sup>−1</sup> across plots), which may be explained by fenestration that protects the inner concave trunk portions from fire. For stems ≥10 cm, both char height (approximating fire intensity) and number of successive burns were significant predictors of fire-induced mortality, whereas only the number of consecutive annual burns was a strong predictor for stems <10 cm. Three years after the initial burn, 62 ± 26 Mg ha<sup>−1</sup> (s.e.) of live biomass, predominantly stems <30 cm, was transferred to the dead biomass pool, compared with 8 ± 3 Mg ha<sup>−1</sup> in the control. This biomass loss from fire represents ∼30% of this forest's aboveground live biomass (192 (±3) Mg ha<sup>−1</sup>; >1 cm DBH). Although forest transition to savanna has been predicted based on future climate scenarios, our results indicate that wildfires from agricultural expansion pose a more immediate threat to the current carbon stocks in Amazonian forests.</p>
FIGURE 4 in A new species of the Nuneztovari Complex of Nyssorhynchus (Diptera: Culicidae) from the western Brazilian Amazon
FIGURE 4. Details of the aedeagus of male genitalia. a, Nyssorhynchus nuneztovari s.s (Venezuela, image preparation #1353 WRBU); b, Ny. goeldii (holotype); c, Ny. dunhami (lectotype number #58031WRBU); d, Ny. jamariensis n. sp. (Rôndonia, Brazil).
FIGURE 1 in A new species of the Nuneztovari Complex of Nyssorhynchus (Diptera: Culicidae) from the western Brazilian Amazon
FIGURE 1. Female of Nyssorhynchus jamariensis n. sp. a, Wing; b, hindtarsi. Costal wing spots: AD, apical dark; AP, apical pale; BP, basal pale; HD, humeral dark; HP, humeral pale; PD, preapical dark; PHD, prehumeral dark; PP, preapical pale; PSD, presector dark; PSP, presector pale; SCD, subcostal dark; SCP, subcostal pale; SP, sector pale; Ta-III1– Ta-III 5, hindtarsomeres 1–5.
FIGURE 5 in A new species of the Nuneztovari Complex of Nyssorhynchus (Diptera: Culicidae) from the western Brazilian Amazon
FIGURE 5. Details of the ventral claspette of male genitalia. a, Ny. goeldii (Pará, Brazil); b, Ny. jamariensis n. sp. (Rôndonia, Brazil). ApL, apicolateral lobes; bl, basal lobule; Pp, preapical plate.
FIGURE 3 in A new species of the Nuneztovari Complex of Nyssorhynchus (Diptera: Culicidae) from the western Brazilian Amazon
FIGURE 3. Fourth-instar larva of Nyssorhynchus jamariensis n. sp. A, antenna; C, cranium; Dm, dorsomentum; La, lateral arms, M, mesothorax; MdP, median plate; P, prothorax; T, metathorax; I–VIII,X, abdominal segments. Scales in mm.
FIGURE 2 in A new species of the Nuneztovari Complex of Nyssorhynchus (Diptera: Culicidae) from the western Brazilian Amazon
FIGURE 2. Pupa and male genitalia of Nyssorhynchus jamariensis n. sp. a, Cephalothorax; b, abdomen; c, male genitalia. Pupa: CT, cephalothorax; GL, genital lobe; Pa, paddle; I–VIII, abdominal segments. Male genitalia: Ae, aedeagus; bl, basal lobule; DCI, dorsal claspette; Pp, preapical plate; VCI, ventral claspette. Scales in mm.
Distribution. Known from scattered localities in lowlands of N South America, from E slopes of Andes in Ecuador to E Venezuela, the Guianas, and Brazilian Amazon. in Molossidae
Distribution. Known from scattered localities in lowlands of N South America, from E slopes of Andes in Ecuador to E Venezuela, the Guianas, and Brazilian Amazon.
Distribution. E Brazilian Amazon S in Dasyproctidae
Distribution. E Brazilian Amazon S of the Amazon River, from the lower Rio Tapajos to the left margin of the lower Rio Tocantins, and on Marajo and Mexiana Is at the river mouth.
Distribution. Bolivian lowlands (NE to the Chiquitano Mts and SW to the piedmont elevations in the subandean region) and SW Brazilian Amazon in the upper Madeira River, and the Beni, Ichilo, Marmoré, Ipurupuru, Iboré, Baré, Abuna, and Iténez (= Guaporé) rivers and their tributaries, all of which drain into the Madeira; recently also recorded below Santo Antonio falls between the cities of Porto Velho and Borba. in Iniidae
Distribution. Bolivian lowlands (NE to the Chiquitano Mts and SW to the piedmont elevations in the subandean region) and SW Brazilian Amazon in the upper Madeira River, and the Beni, Ichilo, Marmoré, Ipurupuru, Iboré, Baré, Abuna, and Iténez (= Guaporé) rivers and their tributaries, all of which drain into the Madeira; recently also recorded below Santo Antonio falls between the cities of Porto Velho and Borba.
Distribution. Brazilian Amazon, S of the Amazon River, between the Rio Madeira and Rio Tapajos in Amazonas and Para states. in Echimyidae
Distribution. Brazilian Amazon, S of the Amazon River, between the Rio Madeira and Rio Tapajos in Amazonas and Para states.
Distribution. Lower Brazilian Amazon at both sides of the Amazon River, from its confluence with the Rio Negro to its mouth at Caviana I. in Echimyidae
Distribution. Lower Brazilian Amazon at both sides of the Amazon River, from its confluence with the Rio Negro to its mouth at Caviana I.
Distribution. Brazilian Amazon S in Cebidae
Distribution. Brazilian Amazon S of the Rio Solimoes-Amazonas in the states of Amazonas, Para, Mato Grosso, and Rondonia, from the Rio Tefé E to the Rio Xingu-Iriri, and S to the upper Rio Guaporé and the headwaters of the Rio Juruena.
Subspecies and Distribution. S. b. boliviensis 1. Geoffroy Saint-Hilaire & de Blainville, 1834 — upper Brazilian Amazon S of the Rio Solimoes, from between the rios Jurua and Tefé extending S into SE Peru (S of Rio Abujao, Ucayali Department) and N Bolivia W of the Rio Guaporé (Beni, Cochabamba, Pando, and Santa Cruz departments, including the upper Madeira Basin), at elevations of 50-500 m. S. b. peruviensis Hershkovitz, 1984 — N & C Peru, S of the Rio Maranon-Amazonas, from the W bank of the Rio Tapiche W to the Rio Huallaga, and S through the departments of San Martin and of Huanuco (to c.10° S), and Ucayali (between the rios Pachitea and Tambo, at least as far as the Rio Abujao); also possibly in Brazil (Amazonas State), at elevations of 90-800 m. in Cebidae
Subspecies and Distribution. S. b. boliviensis 1. Geoffroy Saint-Hilaire & de Blainville, 1834 — upper Brazilian Amazon S of the Rio Solimoes, from between the rios Jurua and Tefé extending S into SE Peru (S of Rio Abujao, Ucayali Department) and N Bolivia W of the Rio Guaporé (Beni, Cochabamba, Pando, and Santa Cruz departments, including the upper Madeira Basin), at elevations of 50-500 m. S. b. peruviensis Hershkovitz, 1984 — N & C Peru, S of the Rio Maranon-Amazonas, from the W bank of the Rio Tapiche W to the Rio Huallaga, and S through the departments of San Martin and of Huanuco (to c.10° S), and Ucayali (between the rios Pachitea and Tambo, at least as far as the Rio Abujao); also possibly in Brazil (Amazonas State), at elevations of 90-800 m.
Distribution. Wide ranging in the upper Brazilian Amazon Basin, S of the Rio Solimoes-Amazonas, W from the Rio Tapajos, through the N of the states of Mato Grosso and Rondonia (at least to 10° S), and the Madeira, Purus, Jurua, and Javari basins to the Rio Ucayali in E Peru. White-fronted capuchins occur in northern Bolivia, S at least to the middle reaches of the Beni and Mamoré in the departments of Pando, Beni, and La Paz, and they are presumed to be Spix's White-fronted Capuchin. Nevertheless, where distributions of Spix's White-fronted Capuchin and the Shock-headed Capuchin (C. cuscinus) of the upper Purus and SE Peru meetis not known. in Cebidae
Distribution. Wide ranging in the upper Brazilian Amazon Basin, S of the Rio Solimoes-Amazonas, W from the Rio Tapajos, through the N of the states of Mato Grosso and Rondonia (at least to 10° S), and the Madeira, Purus, Jurua, and Javari basins to the Rio Ucayali in E Peru. White-fronted capuchins occur in northern Bolivia, S at least to the middle reaches of the Beni and Mamoré in the departments of Pando, Beni, and La Paz, and they are presumed to be Spix's White-fronted Capuchin. Nevertheless, where distributions of Spix's White-fronted Capuchin and the Shock-headed Capuchin (C. cuscinus) of the upper Purus and SE Peru meetis not known.
Distribution. SW Brazilian Amazon (Amazonas State), S of the Rio Solimoes, E of the lower RioJavari, and W of the lower Rio Jurua; the S limit of its geographic distribution remains unclear. in Phitheciidae
Distribution. SW Brazilian Amazon (Amazonas State), S of the Rio Solimoes, E of the lower RioJavari, and W of the lower Rio Jurua; the S limit of its geographic distribution remains unclear.
Distribution. S Brazilian Amazon Basin, S in Phitheciidae
Distribution. S Brazilian Amazon Basin, S of the right (S) bank of the Rio Madeira, E of the lower Rio Jiparana and W to the rios Aripuana and Roosevelt; S limits of its distribution are unclear, but there may be a zone of contact or intergradation with the ranges of the Ashy Titi (C. cinerascens) and the White-eared Titi (C. donacophilus) in S Rondonia or N Mato Grosso states.
Distribution. Brazilian Amazon, S of the Rio Amazonas, between the rios Xingu and Iriri in the states of Para and Mato Grosso. Only three widely separated localities are known, one is relatively close to the type locality and another on the right (S) bank of the Rio Iriri in Para. in Phitheciidae
Distribution. Brazilian Amazon, S of the Rio Amazonas, between the rios Xingu and Iriri in the states of Para and Mato Grosso. Only three widely separated localities are known, one is relatively close to the type locality and another on the right (S) bank of the Rio Iriri in Para.
Distribution. Brazilian Amazon, S of the Rio Amazonas, between the Tapajos/Juruena system and the Tocantins/Araguaia river system to the E, in the Brazilian states of Para and Mato Grosso; the exact S limit ofits distribution is unclear, but it seems likely that it coincides with the transition between the Amazon rainforest and the cerrado savannas of C Brazil; this ecotone encompasses headwaters of the Xingu and Tapajos river systems in N Mato Grosso. Vieira's Titi (C. vieirai) is also known to occur in this region, but there are too few records to confirm whether their distributions intergrade, or in fact where the exact limits of their distributions are. One recent study also found that the Red-bellied Titi may be absent from or present at extremely low densities in large areas of the Tocantins-Xingu interfluvium. Given the overall lack of records, while it is clear that the Red-bellied Titi occurs over a vast area of the SE Amazon Basin, the exact limits of its distribution within this area remain unclear. in Phitheciidae
Distribution. Brazilian Amazon, S of the Rio Amazonas, between the Tapajos/Juruena system and the Tocantins/Araguaia river system to the E, in the Brazilian states of Para and Mato Grosso; the exact S limit ofits distribution is unclear, but it seems likely that it coincides with the transition between the Amazon rainforest and the cerrado savannas of C Brazil; this ecotone encompasses headwaters of the Xingu and Tapajos river systems in N Mato Grosso. Vieira's Titi (C. vieirai) is also known to occur in this region, but there are too few records to confirm whether their distributions intergrade, or in fact where the exact limits of their distributions are. One recent study also found that the Red-bellied Titi may be absent from or present at extremely low densities in large areas of the Tocantins-Xingu interfluvium. Given the overall lack of records, while it is clear that the Red-bellied Titi occurs over a vast area of the SE Amazon Basin, the exact limits of its distribution within this area remain unclear.
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