Abstract Detail

Symbioses: Plant, Animal, and Microbe Interactions

Salas, Andrea [1], Koptur, Suzanne [2], Jayachandran, Krish [3], Ayala-Silva, Thomas [4], Sah, Jay [5].

Native Vegetation within Urban and Agricultural Landscapes: The Influence of Spatial Attributes on Tritrophic Interactions.

A modified systematic spacing design of Nelder’s wheel was performed to determine the effect of host-plant density on the number of sulfur caterpillars, (Phoebis sennae, Phoebis philea, and Abaeis nicippe) and rates of parasitization in urban and agricultural environments. Senna mexicana chapmanii seedlings (288) were planted in a semicircular array with 16 plants each at distance of 1 m, 5 m, and 10 m from other individuals, representing high, medium, and low host-plant densities, respectively. At each site, each of the three plots contained three semicircular arrays and 16 plants per semicircle. The number of sulfur folivores in immature stages (eggs and 1st, 2nd, 3rd, 4th and 5th instar larvae) was recorded, and all herbivores were collected, during morning hours. Herbivores were reared until complete development, death, or emergence of parasitoid larvae. Based on results obtained from this study, differences in host-plant physical attributes and the surrounding landscape can influence parasitoid abilities to find their hosts.

1 - Florida International University, Biological Sciences, 11200 SW 8th , Miami, FL, 33199, USA
2 - Florida International University, Department Of Biological Sciences, 11200 SW 8th St., Miami, FL, 33199, United States
3 - Florida International University, Earth and Environment, 11200 SW 8th St, Miami, FL, 33199, USA
4 - USDA, Tropical Crops and Germplasm Research, 2200 PA Campos Ave, Mayaguez, PR
5 - Florida International University, Biological Sciences, 11200 SW 8th St, Miami, FL, 33199, USA

Keywords:
Parasitoids
Herbivores
Fabaceae
Lepidoptera
Hymenoptera
Beneficial Insects
Trophic interactions
Plant-Insect interaction
isolation.

Presentation Type: Poster
Session: P, Symbioses: Plant, Animal, and Microbe Interactions
Location: Grand Ballroom - Exhibit Hall/Mayo Civic Center
Date: Monday, July 23rd, 2018
Time: 5:30 PM This poster will be presented at 5:30 pm. The Poster Session runs from 5:30 pm to 7:00 pm. Posters with odd poster numbers are presented at 5:30 pm, and posters with even poster numbers are presented at 6:15 pm.
Number: PSM003
Abstract ID:929
Candidate for Awards:None