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74 results for “Neotropical savanna”
Strategies of air space acquisition in Neotropical savanna trees differing in leaf habit
<p>Strategies of air space acquisition in Neotropical savanna trees differing in leaf habit - Manuscript submitted to the Australian Journal of Botany</p>
FIGURE 3. Homalolepis pumila. A in Two new dwarf species of Homalolepis (Simaroubaceae) from the Brazilian Cerrado (Neotropical savanna)
FIGURE 3. Homalolepis pumila. A. Habit, the inflorescence at ground level. B. Individual bearing only flowers, before leaf sprouting. C. Flower. D. Stamen bearing a laminar appendage. E. Distal portion of the style showing the stigma lobed. F. Two fruits, one with four drupelets, the other with only one (A–H. Devecchi & Alves 323).
FIGURE 2. Homalolepis planaltina. A. Habit. B in Two new dwarf species of Homalolepis (Simaroubaceae) from the Brazilian Cerrado (Neotropical savanna)
FIGURE 2. Homalolepis planaltina. A. Habit. B. Apex of a leaflet showing the gland. C. Distal part of the inflorescence with floral buds and glandular bracts. D. Underground system with a young inflorescence. E. Individual with ramified underground system, the inflorescence and leaves located on different branches. F. Flowers with five and six petals on a same inflorescence. G. Individual in reproductive stage, without leaves.
FIGURE 1. Homalolepis planaltina. A. Habit, vegetative stage. B. Stem thickened with underground development. C in Two new dwarf species of Homalolepis (Simaroubaceae) from the Brazilian Cerrado (Neotropical savanna)
FIGURE 1. Homalolepis planaltina. A. Habit, vegetative stage. B. Stem thickened with underground development. C. Portion of a leaf showing the opposite and subopposite leaflets. D. Habit, reproductive stage; the inflorescence grows near ground level. E. Flower F. and G. Stamens with anther, filament and filament appendage. H. Flower with petals removed showing the gynoecium on top of a gynophore and style (A–H. Devecchi & Bordon 320).
FIGURE 4. Homalolepis pumila A. Habit. B in Two new dwarf species of Homalolepis (Simaroubaceae) from the Brazilian Cerrado (Neotropical savanna)
FIGURE 4. Homalolepis pumila A. Habit. B. Flowers at anthesis. C. Habit, showing the underground system and inflorescence at ground level. D. Underground system with sprouting lateral inflorescences. E. An individual bearing only flowers, lateral view. F. View from above of the plant shown in E. G. Habitat of the new species: open cerrado physiognomy.
Figure 1 in The planalto hermit, Phaethornis pretrei - a key species in a Neotropical savanna community in Central Brazil
Figure 1. Flowering phenology of species visited by Phaethornis pretrei at the Panga Ecological Station, Uberlândia, MG, Brazil. Grey bars indicate rainy periods. The percentage of flowers available is indicated by line thickness. *Ornithophilous species according to Faegri and van der Pijl (1979).
Figure 1 in Natural history of an ant-plant-butterfly interaction in a Neotropical savanna
Figure 1. Life stages of Udranomia spitzi on Ouratea spectabilis. (A) egg; (B) first instar; (C) second instar; (D) third instar; (E) fifth (last) instar; (F) head capsule of fifth instar in frontal view; (G) prepupa; (H) pupa; (I) freshly emerged adult on the host plant.
Figure 3 in Natural history of an ant-plant-butterfly interaction in a Neotropical savanna
Figure 3. Frequency of ant species visiting Ouratea spectabilis plants (n = 20 individuals) in a cerrado area of Uberlândia, Brazil. Numeric values next to bars indicate mean number of ants per occupied plant (± SE).
Figure 4 in Natural history of an ant-plant-butterfly interaction in a Neotropical savanna
Figure 4. Survival curve of Udranomia spitzi larvae on paired branches of Ouratea spectabilis through time, as a function of the presence or absence of Camponotus ant in a cerrado area of Uberlândia, Brazil.
Figure 2 in Natural history of an ant-plant-butterfly interaction in a Neotropical savanna
Figure 2. Natural history of Udranomia spitzi on Ouratea spectabilis in a cerrado area of Uberlândia, Brazil. (A) general aspect of the host plant; (B) detail of new red leaves; (C) early larva building a shelter; (D) an early larva inside the shelter, note the Camponotus worker foraging on the extrafloral nectary (arrow); (E) a parasitic Tachinidae fly on the host plant.
Figure 3 in Ectoparasitism and phoresy in Thysanoptera: the case of Aulacothrips dictyotus (Heterothripidae) in the Neotropical savanna
Figure 3. (A) Arrows indicate two adult thrips (Aulacothrips dictyotus) next to an adult membracid (Enchenopa brasiliensis) tended by a Camponotus sp.1 ant on a leaf of Solanum lycocarpum in the Neotropical savanna; (B) the arrow indicates the red larva of A. dictyotus fixed on the ventral part of a membracid nymph body; (C) a host-free thrip larva approaching from the side of an adult membracid; (D) the arrows indicate the convoluted and continuous sensoria on adult thrip antennae.
Figure 2 in Ectoparasitism and phoresy in Thysanoptera: the case of Aulacothrips dictyotus (Heterothripidae) in the Neotropical savanna
Figure 2. The number of Enchenopa brasiliensis adults and nymphs supporting Aulacothrips dictyotus. Infestation by thrips was higher in membracid nymphs, as indicated by ∗ upon the bar.
Figure 1 in Ectoparasitism and phoresy in Thysanoptera: the case of Aulacothrips dictyotus (Heterothripidae) in the Neotropical savanna
Figure 1. The number (¯X ± 1SD) of adult and immature (A) Enchenopa brasiliensis and (B) Aulacothrips dictyotus found on Solanum lycocarpum. (∗ upon the bars indicates statistically significant differences).
Data from: Demographic history and the low genetic diversity in Dipteryx alata (Fabaceae) from Brazilian Neotropical savannas
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Data from: Revisiting the pyrodiversity-biodiversity hypothesis: long-term fire regimes and the structure of ant communities in Neotropical savannas
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Data from: Biotic-drivers of seedling establishment in Neotropical savannas: selective granivory and seedling herbivory by leaf-cutter ants as an ecological filter
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Data from: An enemy's enemy is an ally: Competitive indirect interactions mediate coexistence of trees, grasses, and subshrubs in Neotropical Savanna
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Data from: Topography, more than land cover, explains genetic diversity in a Neotropical savanna treefrog
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Data from: Short-term effects of elevated precipitation and nitrogen on soil fertility and plant growth in a Neotropical savanna
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Data from: Ant–caterpillar antagonism at the community level: interhabitat variation of tritrophic interactions in a neotropical savanna
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