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967 results for “cerrado”
Figure 3 in First avifaunal survey of a Cerrado dry forest enclave on the right bank of the São Francisco River, Minas Gerais, Brazil, with insights on geographic variation of some species
Figure 3. Tails of three female specimens of Campylopterus calcirupicola (from left to right: MCNA 4977, MCNA 5050, MCNA 5190) from Curral de Pedras, Minas Gerais, Brazil.
Figure 2 in First avifaunal survey of a Cerrado dry forest enclave on the right bank of the São Francisco River, Minas Gerais, Brazil, with insights on geographic variation of some species
Figure 2. Species rarefaction curve (continuous line) and estimation curve using the Chao1 estimator (dashed line) for the avifauna of Curral de Pedras, Minas Gerais, southeastern Brazil, using 226 MacKinnon lists.
Figure 5 in First avifaunal survey of a Cerrado dry forest enclave on the right bank of the São Francisco River, Minas Gerais, Brazil, with insights on geographic variation of some species
Figure 5. From left to right: specimens of Sittasomus griseicapillus sylviellus from Santa Teresa, Espírito Santo (DZUFMG 630), Mariana, Minas Gerais (MCNA 1406), Santa Bárbara, Minas Gerais (MCNA 4147), Curral de Pedras, Minas Gerais (MCNA 4970, MCNA 4981, MCNA 5052); and specimens of Sittasomus griseicapillus reiseri from Janaúba, Minas Gerais (DZUFMG 3428), and Riacho dos Machados, Minas Gerais (MCNA 2523).
Figure 7 in First avifaunal survey of a Cerrado dry forest enclave on the right bank of the São Francisco River, Minas Gerais, Brazil, with insights on geographic variation of some species
Figure 7. From left to right: specimens of Xiphocolaptes albicollis albicollis fromTrês Rios, Rio de Janeiro (MCNA 2061); intermediate specimens between X. a. bahiae and X. a. albicollis from Conceição do Mato Dentro, Minas Gerais (MCNA 2903) and Mariana, Minas Gerais (DZUFMG 6536); and specimens of X. a. bahiae from Curral de Pedras, Minas Gerais (MCNA 5203, MCNA 5204) in lateral (A) and dorsal (B) views.
Figure 1 in First avifaunal survey of a Cerrado dry forest enclave on the right bank of the São Francisco River, Minas Gerais, Brazil, with insights on geographic variation of some species
Figure 1. Map of the study area in South America (black dot) in the Cerrado biogeographic province and its position in relation to the Caatinga and the Chaco biogeographic provinces (A); detail of the study area at Curral de Pedras with tracks of the sampled trails (white lines) (B).
Bud traits and post-fire responses of Cerrado woody species, Southeastern Brazil
<p>1) Species growing in fire-prone savannas usually persist by resprouting from their buds. In this study, we evaluated how various persistence traits allow bud protection for improved survival in fire-prone ecosystems.</p> <p>2) Using an integrative morphological and macroanatomical approach, we analyzed how woody plants protect their buds. We tested bud protection at the community level and evaluated: a) how bud protection changes along a fire frequency gradient, b) if it differs between shrubs and trees and c) whether the level of bud protection is related to post-fire responses of 28 woody savanna species.</p> <p>3) A mix of traits involving bud protection may enable woody species persistence in fire-prone ecosystems. Savanna species better protected their buds than forest species by developing bark and trichomes that allowed resprouting after fire. Regarding growth forms, shrub species capable of resprouting aboveground had their buds better protected than trees.</p> <p>4) Bud protection is not only linked with their position to the bark, but also with the presence of trichomes. Profuse trichomes covering buds were related to savanna species. Some species with no bud protection by bark but with trichomes covering their buds were able to resprout after fire. The presence of accessory buds is also a trait more related to savannas, possibly influencing the resprouting after fire as they are better protected and increase the bud bank. Finally, different persistence traits interact with one another to better protect the buds, requiring a detailed screening of the traits to assess species responses to fire.</p> <p>5) Synthesis. During fire, species have their aerial biomass consumed by the flames. To be able to resprout new branches and persist in the environment, they must have well-protected buds. In this study, we evaluated different ways that woody species protect their buds and related them with their resprouting strategy after fire. We investigated the protection by the bark, presence of trichomes and accessory buds. By studying the woody community in a gradient of savannas and forests we found that buds can be protected by bark, trichomes, or soil. Species can present a mix of these traits and strategies, which enhances their resprouting after fire.</p>
Figures 7-10 in A new host for Philornis torquans (Diptera, Muscidae) from the Brazilian Cerrado
Figures 7-10. (7) Philornis torquans (Nielsen), sternite 5, dorsal view; (8) Philornis torquans (Nielsen), cercal plate, dorsal view; (9) Philornis torquans (Nielsen), aedeagal complex, lateral view; (10) Philornis torquans (Nielsen), ovipositor, dorsal and ventral view.
Figures 5-6 in A new host for Philornis torquans (Diptera, Muscidae) from the Brazilian Cerrado
Figures 5-6. (5) Philornis torquans (Nielsen), adult male, dorsal view; (6) Philornis torquans (Nielsen), adult male, lateral view.
Figures 1-4 in A new host for Philornis torquans (Diptera, Muscidae) from the Brazilian Cerrado
Figures 1-4. (1) Nest of Neothraupis fasciata (Lichtenstein), (Passeriformes, Thraupidae) with parasitized nestlings; (2) Nestling of Neothraupis fasciata (Lichtenstein), (Passeriformes, Thraupidae) parasitized with Philornis torquans (Nielsen) subcutaneous larvae; (3) Head (dorsal view) of a nestling of Neothraupis fasciata (Lichtenstein), (Passeriformes, Thraupidae) with parasitized with Philornis torquans (Nielsen) subcutaneous larvae; (4) Head (dorsal-lateral view) of a nestling of Neothraupis fasciata (Lichtenstein), (Passeriformes, Thraupidae) with parasitized with Philornis torquans (Nielsen) subcutaneous larvae.
FIGURE 1 in Phytoseiidae (Acari: Mesostigmata) On Plants Of The Central Region Of The Brazilian Cerrado
FIGURE 1: Location of study areas. 1 – Map of Brazil highlighting the region sampled. 2 – detailed map, with location of study points. Letters correspond to cities in the sampling areas: (A: Chapadªo do Sul-MS, B: Chapadªo do CØu-GO, C: Jataí-GO, D: Jataí-GO, E: Rio Verde-GO, F: Edealina-GO, G: Tupaciguara-MG, H: Brasília-DF, I: Unai, MG and J: Cristalina-GO).
FIGURE 2 in Mites (Arachnida, Acari) on Astronium fraxinifolium Schott (Anacardiaceae) from the Cerrado remnants associated with nickel mining areas
FIGURE 2: Results of Non-metric multidimensional scaling (NMDS), using Simpson matrix, applied to test similarity in mite fauna composition on A. fraxinifolium between preserved (PR) and secondary regeneration (SR) remnants.
FIGURE 1 in Mites (Arachnida, Acari) on Astronium fraxinifolium Schott (Anacardiaceae) from the Cerrado remnants associated with nickel mining areas
FIGURE 1: Accumulation (Mao Tau) and estimated richness (Jackknife 1) curves determined for Cerrado remnants belonging to Anglo- America Enterprise, Niquelândia, GoiAEs State, Brazil. (A) preserved (PR) and (B) secondary regeneration (SR) remnants.
Challenges and directions for open ecosystems biodiversity restoration: An overview of the techniques applied for Cerrado
<p>1. Ecological restoration of tropical open ecosystems remains challenging for both science and practice. Over the last decade, innovative techniques have been developed, but whether they have been successful or not remains to be demonstrated. Assessing the outcomes of these initiatives is crucial to drive the following steps to improve tropical grasslands and savanna restoration.</p> <p>2. Analyzing 82 data sets from the literature and primary data collection, we assessed the effectiveness of passive and active restoration techniques applied in Cerrado open ecosystems. We used plant diversity variables (species and growth forms) as indicators, considering ruderals and exotics as non-target species. Specifically, we aimed to answer: (i) How does the diversity of target species change through time in areas subject to passive restoration? (ii) Are active and passive restoration techniques effective in restoring the proportion of target species found in old-growth reference ecosystems? (iii) Have the current techniques been successful in recovering the proportions of growth forms of reference ecosystems?</p> <p>3. We found that target species proportions do not increase with time, suggesting limitations of typical species to colonize degraded sites. Hence, passive restoration will promote the conservation of a limited and constant number of target species. This number will depend on the magnitude of degradation and previous land use.</p> <p>4. The restoration techniques currently applied to restore the biodiversity of Cerrado open ecosystems are not reaching the reference standards, with distinct techniques driving plant communities to different sets of growth forms. Active restoration based on propagules obtained from pristine donor sites (topsoil translocation, plant material transplant, and seeding) performed better than passive restoration for most of the growth forms analyzed.</p> <p>5. Synthesis and Applications: Different growth forms have different roles in determining the structure and functioning of Cerrado vegetation. A mix of techniques can better approximate plant diversity and the proportionality of target species of pristine ecosystems. Singular restoration approaches are insufficient for restoring Cerrado open ecosystem biodiversity. Mixed efforts encompassing various techniques are required instead. Furthermore, it is likely restoration success can be improved with greater investment in improving our understanding of and developing existing restoration techniques.</p>
Effects of environmental factors on the ecology and survival of a widespread, endemic Cerrado frog
<p><span>Understanding the mechanisms that affect habitat use by vertebrates is critical for understanding how species are distributed across landscapes and how they cope with habitat change. The Brazilian Savanna (the Cerrado) has vegetation ranging from grassland to woodland savannas and harbors a rich and diverse amphibian fauna impacted by accelerated habitat loss. Here, we test the influence of vegetation type (from grassy scrubland to woodland) and distance from breeding sites (ephemeral water bodies) on body size, abundance, and survival of the frog <em>Physalaemus nattereri</em> in a natural metapopulation system of south-central Brazil. We also test whether body size is a significant predictor of population abundance. We found that the abundance of <em>P. nattereri</em> varies according to the mean snout-vent length of each metapopulation (sampling unit), as well as a higher estimated mortality rate in woodlands compared to typical Cerrado. Furthermore, we found no difference in estimated mortality among sampling units located far or close to ephemeral water bodies. Thus, our results highlight variable responses of <em>P. nattereri</em> metapopulations to environmental factors, despite the observed high heterogeneity among sampled habitats and the importance of ephemeral water bodies for reproduction. These findings highlight that land</span> <span>cover and availability of breeding sites might not always interact to explain population persistence of Cerrado frogs. </span></p>
Species distribution data and distribution of private and public protected areas in Cerrado, Brazil
<p>Here we present the models of 103 threatened vertebrates (Anphibia, Reptile, Birds and Mammals) from the Cerrado in Brazil and all information about spatial distribution of private and public conservation protected areas that is a part of an article about the value of private areas to conservation.</p>
Challenges and directions for open ecosystems biodiversity restoration: An overview of the techniques applied for Cerrado
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Data from: Isolation by instability: historical climate change shapes population structure and genomic divergence of treefrogs in the Neotropical Cerrado savanna
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Data from: Effects of vegetation density on the diversity of lizards in an area of the Brazilian Cerrado
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Low-intensity cattle grazing is better than cattle exclusion to drive secondary savannas towards the features of native Cerrado vegetation
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Data from: The diversity of post-fire regeneration strategies in the cerrado ground layer
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