133103 -Intra-annual variation and landscape composition.pdf (952.42 kB)
Intra-annual variation and landscape composition interactively affect aphid community composition
journal contributionposted on 2023-05-20, 04:11 authored by Susan ClaflinSusan Claflin, Hernandez, N, Groves, R, Thaler, JS, Power, AG
Agricultural intensiﬁcation impacts local arthropod communities. The temporal and spatial variation of agricultural environments can have a signiﬁcant impact on insect pest populations, yet little work has been done to date on the effect of intra-annual variation (within season) or spatiotemporal effects on arthropod functional community composition. The aim of this research was to evaluate the effects of intra-annual variation and landscape composition on the aphid community. To that end, we investigated the following research question: How do intra-annual variation and landscape composition affect aphid abun- dance, species richness, and functional community composition? In this study, we quantiﬁed landscape com- position as percent cropland, intra-annual variation as sampling week measured throughout the growing season, and aphid functional community composition as crop virus transmission—or vectoring—ability. We collected data in two agricultural regions: a diversiﬁed agricultural region in New York State (NY) and an agriculturally intense potato-growing region in Wisconsin (WI). We found that the interactive effect of land- scape composition and intra-annual variation signiﬁcantly affected aphid abundance and species richness in both study regions, and functional community composition in NY. These results indicate that spatiotempo- ral shifts in agroecosystems have signiﬁcant implications for aphid functional community composition.
Department/SchoolMenzies Institute for Medical Research
PublisherEcological Society of America
Place of publicationUnited States
Rights statementCopyright 2019 The Authors. Licensed under Creative Commons Attribution 3.0 Unported (CC BY 3.0) https://creativecommons.org/licenses/by/3.0/