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21 results for “Heliconiaceae”
Fig. 1 in Interaction and distribution of beetles (Insecta: Coleoptera) associated with Heliconia bihai (Heliconiaceae) inflorescences
Fig. 1. Ordination diagram produced by canonical correspondence analysis for the samples of Heliconia bihai inflorescences collected in the (A) cultivated and (B) uncultivated area. The species are represented by triangles with the abbreviations of their scientific names, and the environmental variables are represented by vectors. Pel = Pelosoma lafertei; Tac = Tachyporus sp.; Pae = Paederomimus sp.; Elm = Elmidae sp.
Demography of the understory herb Heliconia acuminata (Heliconiaceae) in an experimentally fragmented tropical landscape
<p>Habitat fragmentation remains a major focus of research by ecologists decades after being put forward as a threat to the integrity of ecosystems. While studies have documented myriad biotic changes in fragmented landscapes, including the local extinction of species from fragments, the demographic mechanisms underlying these extinctions are rarely known. However, many of them – especially in lowland tropical forests – are thought to be driven by one of two mechanisms: (1) reduced recruitment in fragments resulting from changes in the diversity or abundance of pollinators and seed dispersers or (2) increased rates of individual mortality in fragments due to dramatically altered abiotic conditions, especially near fragment edges. Unfortunately, there have been few tests of these potential mechanisms due to the paucity of long-term and comprehensive demographic data collected in both forest fragments and continuous forest sites. Here we report 11 years (1998-2009) of demographic data from populations of the Amazonian understory herb Heliconia acuminata (LC Rich.) found at Brazil's Biological Dynamics of Forest Fragments Project (BDFFP). The resulting data set comprises >66000 plant×year records of 8586 plants, including 3464 seedlings that became established after the initial census. Seven populations were in experimentally isolated fragments (one in each of four 1-ha fragments and one in each of three 10-ha fragments), with the remaining six populations in continuous forest. Each population was in a 50×100m permanent plot, with the distance between plots ranging from 500 m-60 km. The plants in each plot were censused annually, at which time we recorded, identified, marked, and measured new seedlings, identified any previously marked plants that died, and recorded the size of surviving individuals. Each plot was also surveyed 4-5 times during the flowering season to identify reproductive plants and record the number of inflorescences each produced. These data have been used to investigate topics ranging from the way fragmentation-related reductions in germination influence population dynamics to statistical methods for analyzing reproductive rates. This breadth of prior use reflects the value of these data to future researchers. In addition to analyses of plant responses to habitat fragmentation, these data can be used to address fundamental questions in plant demography, the evolutionary ecology of tropical plants, and for developing and testing demographic models and tools. Though we welcome opportunities to collaborate with interested users, there are no restrictions on the use this data set. However, we do request that those using the data for teaching or research inform us of how they are doing so and cite this paper and the data archive when appropriate. Any publication using the data must also include a BDFFP Technical Series Number in the Acknowledgments. Authors can request this series number upon the acceptance of their article by contacting the BDFFP's Scientific Coordinator or E. M. Bruna.</p>
Demography of the understory herb Heliconia acuminata (Heliconiaceae) in an experimentally fragmented tropical landscape
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Data from: Florivory and floral larceny by fly larvae decrease nectar availability and hummingbird foraging visits at Heliconia (Heliconiaceae) flowers
Insect larvae inhabit the corolla tubes of some Heliconia species (Heliconiaceae). In this study, we present the first evidence of the influence of these larvae on the pollination ecology of Heliconia plants. We provide experimental evidence that the flowers of Heliconia spathocircinata infested by flies have less nectar for pollinators and received fewer visits by hummingbird pollinators, in comparison with uninfested flowers.
FIGURE 7 in Reawakening of the beauty: Heliconia montana is distinct from H. venusta (Heliconiaceae)
FIGURE 7. Distribution map of Heliconia montana (green circles) and H. venusta (red circles) in Colombia, representing the analyzed material in this study. Heliconia venusta also distributes in Ecuador.
FIGURE 4 in Reawakening of the beauty: Heliconia montana is distinct from H. venusta (Heliconiaceae)
FIGURE 4. Comparison between the fruits and seeds of Heliconia montana and H. venusta. A. H. montana, Yellow immature fruit and ripe fruit; B. H. venusta, greenish immature fruit, and ripe fruit; C. Ripe fruit in lateral and upper view showing the scar of the perianth detachment of H. montana; D. Ripe fruit in lateral and upper view showing the scar of the perianth detachment of H. venusta; E. Convex dorsal side of a seed of H. montana; F. ventral flattened side of a seed of H. montana, showing a channel from the operculum to the base of the seed; G. Convex dorsal side of a seed of H. venusta; H. Ventral flattened to slightly concave side of a seed of H. venusta; I. Seed showing the operculum of H. montana; J. Seed showing the operculum of H. venusta.
FIGURE 2. Perianth morphometry. A in Reawakening of the beauty: Heliconia montana is distinct from H. venusta (Heliconiaceae)
FIGURE 2. Perianth morphometry. A. Perianth length (PL); B. Perianth width (PW); C. Angle of the free sepal (AFS); D. Length of the free sepal (LFS); E. Length of the ovary (LO); F. Width of the ovary (WO).
FIGURE 6 in Reawakening of the beauty: Heliconia montana is distinct from H. venusta (Heliconiaceae)
FIGURE 6. Principal Component Analysis of the morphometric data based on floral measurements. A. Components 1 and 2, the contribution the component 1 is 42% and the contribution of the component 2 is 17%; B. Components 1 and 3, the contribution the component 3 is 10%. Black circles = H. montana; white circles: H. venusta.
FIGURE 5 in Reawakening of the beauty: Heliconia montana is distinct from H. venusta (Heliconiaceae)
FIGURE 5. Comparison between the flowers, the staminode and the ovaries of Heliconia montana and H. venusta. A. H. montana flower; B. H. venusta flower, note the longer corolla; C. staminodes and ovaries of H. montana, note the yellow ovaries; D. staminodes and ovaries of H. venusta, note the reddish ovaries.
FIGURE 3. Staminode morphometry. A in Reawakening of the beauty: Heliconia montana is distinct from H. venusta (Heliconiaceae)
FIGURE 3. Staminode morphometry. A. Length of the corolla tube (LCT); B. Distance of the staminode insertion to the perianth base (DSI); C. Length of the staminode (LS); D. Width of the staminode (WS); E. Width of the auricles (WA).
FIGURE 1 in Reawakening of the beauty: Heliconia montana is distinct from H. venusta (Heliconiaceae)
FIGURE 1. Habit, inflorescence and infrutescence of Heliconia montana and H. venusta. A. H. montana, showing the opened inflorescence with the cincinnal bracts oriented 45º–50° to the axis of the inflorescence, and the lower surface of the leaves light green; B. H. venusta, showing a more closed inflorescence with the cincinnal bracts oriented 30°–45° to the axis of the inflorescence; C. Yellow immature fruits of H. montana; D. Green and purple immature fruits, and detail of the purple lower surface of the leaf of H. venusta.
FIGURE 2 in Validation of the name Heliconia ×rauliniana (Heliconiaceae)
FIGURE 2. Paratype of Heliconia ×rauliniana (H. de S. Barreiros s.n., RB 232609 [previously RB 159909]).
Fig. 2. A in A New State Record for Chelobasis bicolor Gray (Coleoptera: Chrysomelidae: Cassidinae: Arescini) and New Host Association with Heliconia bourgaeana Peterson (Heliconiaceae) in Mexico
Fig. 2. A) Flower of Heliconia bourgaeana, B) H. bourgaeana plant, C) Chelobasis bicolor inside a young rolled leaf.
Fig. 1 in A New State Record for Chelobasis bicolor Gray (Coleoptera: Chrysomelidae: Cassidinae: Arescini) and New Host Association with Heliconia bourgaeana Peterson (Heliconiaceae) in Mexico
Fig. 1. Polymorphism of adults of Chelobasis bicolor collected at Lacandona jungle, Chiapas, Mexico, in leafrolls of Heliconia bourgaeana.
Data from: Edge effects on growth and biomass partitioning of an Amazonian understory herb (Heliconia acuminata; Heliconiaceae)
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Data from: Florivory and floral larceny by fly larvae decrease nectar availability and hummingbird foraging visits at Heliconia (Heliconiaceae) flowers
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Figure 4 from: Flores R, Black C, Ibáñez A (2017) A new species of Heliconia (Heliconiaceae) with pendent inflorescence, from Chucantí Private Nature Reserve, eastern Panama. PhytoKeys 77: 21-32. https://doi.org/10.3897/phytokeys.77.11190
Figure 4 - Heliconia berguidoi R.Flores, C.Black & A.Ibáñez. A Habit B Inflorescence C Leaf D Cincinnal bract open and flowers E Flower F Flower bract G Staminode.
Figure 3 from: Flores R, Black C, Ibáñez A (2017) A new species of Heliconia (Heliconiaceae) with pendent inflorescence, from Chucantí Private Nature Reserve, eastern Panama. PhytoKeys 77: 21-32. https://doi.org/10.3897/phytokeys.77.11190
Figure 3 - A Inflorescence segment of Heliconia berguidoi B Cincinnal bracts opened, showing floral bracts C Flower. Photos: A – R. Flores; B, C – C. Black.
Figure 2 from: Flores R, Black C, Ibáñez A (2017) A new species of Heliconia (Heliconiaceae) with pendent inflorescence, from Chucantí Private Nature Reserve, eastern Panama. PhytoKeys 77: 21-32. https://doi.org/10.3897/phytokeys.77.11190
Figure 2 - A Habit of Heliconia berguidoi B Inflorescences touching the ground C Plant with two of the authors (R. Flores and C. Black). Photos: A, C – R. Flores; B – C. Black.
FIGURE 1 in Validation of the name Heliconia ×rauliniana (Heliconiaceae)
FIGURE 1. Holotype of Heliconia ×rauliniana (R. Burle Marx s.n., RB 159909).
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