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4 results for “Asclepias curassavica”
Figure 2 in First record of Planchonia stentae (Brain, 1920) (Hemiptera: Coccomorpha: Asterolecaniidae) on Asclepias curassavica Linnaeus, 1753 (Gentianales: Asclepiadaceae) in Mexico, with observations on parasitic Encyrtidae
Figure 2. Illustration of mature adult female of Planchonia stentae with ventral characters on right side and dorsal characters on left side. Size: 1–2.5 mm. a) Body with mouthparts in upper third. b) Dorsal 8-shaped pores. c) Dorsal simple disk pores. d) Tubular ducts. e) Anal lobes with arched plate, anal plates, and anal ring (see Fig. 1C-1E for details of structures). f) Antennae. g) Spiracles. h) Ventral 8-shaped pores. i) Ventral simple disk pores. j) Quinquelocular pores. k) Multilocular pores. l–m) Multilocular pores with fringed edges. n) Setae. For more detailed taxonomic data, see Stumpf and Lambdin (2006). Illustration taken with permission from Stumpf and Lambdin (2006). © C. Stumpf.
Figure 1 in First record of Planchonia stentae (Brain, 1920) (Hemiptera: Coccomorpha: Asterolecaniidae) on Asclepias curassavica Linnaeus, 1753 (Gentianales: Asclepiadaceae) in Mexico, with observations on parasitic Encyrtidae
Figure 1. Adult females of Planchonia stentae. A) Adult females (arrows) on the stem of Asclepias curassavica. B) Whole body. C) Anal ring (r) with setae (s), arched plate (a) and anal plate (asterisk). D) Lateral abdominal margin with 8-shaped pores in double or triple row (arrows). E) Multilocular pore bands (arrows), with locular plates of multilocular pores with fringed edges (insert); anal ring (r). Scales: B = 0.2 mm. C = 50 µm. D = 20 µm. E = 50 µm. Insert = 6.0 µm.
Characterizing the nectar microbiome of the non-native tropical milkweed, Asclepias curassavica, in an urban environment
<p>In increasingly urban landscapes, the loss of native pollen and nectar floral resources is impacting ecologically important pollinators. Increased urbanization has also brought about the rise of urban gardens which introduce new floral resources that may help replace those the pollinators have lost. Recently, studies have shown that the microbial communities of nectar may play an important role in plant-pollinator interactions, but these microbial communities and the floral visitors in urban environments are poorly studied. In this study we characterized the floral visitors and nectar microbial communities of <i>Ascelpias curassavica</i>, a non-native tropical milkweed commonly, in an urban environment. We found that the majority of the floral visitors to <i>A. curassavica</i> were honey bees followed closely by monarch butterflies. We also found that there were several unique visitors to each site, such as ants, wasps, solitary bees, several species of butterflies and moths, Anna's hummingbird, and the tarantula hawk wasp. Significant differences in the nectar bacterial alpha and beta diversity were found across the urban sites, although we found no significant differences among the fungal communities. We found that the differences in the bacterial communities were more likely due to the environment and floral visitors rather than physiological differences in the plants growing at the gardens. Greater understanding of the impact of urbanization on the nectar microbiome of urban floral resources and consequently their effect on plant-pollinator relationships will help to predict how these relationships will change with urbanization, and how negative impacts can be mitigated through better management of the floral composition in urban gardens.<br> </p>
Characterizing the nectar microbiome of the non-native tropical milkweed, Asclepias curassavica, in an urban environment
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