RT Journal Article
SR Electronic
T1 Global Cropland Connectivity: A Risk Factor for Invasion and Saturation by Emerging Pathogens and Pests
JF bioRxiv
FD Cold Spring Harbor Laboratory
SP 106542
DO 10.1101/106542
A1 Y. Xing
A1 J. F. Hernandez Nopsa
A1 K. F. Andersen
A1 J. Andrade-Piedra
A1 F. D. Beed
A1 G. Blomme
A1 M. Carvajal-Yepes
A1 D. L. Coyne
A1 W. J. Cuellar
A1 G. A. Forbes
A1 J. F. Kreuze
A1 J. Kroschel
A1 P. L. Kumar
A1 J. P. Legg
A1 M. Parker
A1 E. Schulte-Geldermann
A1 K. Sharma
A1 K. A. Garrett
YR 2020
UL http://biorxiv.org/content/early/2020/03/10/106542.abstract
AB The geographic pattern of cropland is an important risk factor for invasion and saturation by crop-specific pathogens and arthropods. Understanding cropland networks supports smart pest sampling and mitigation strategies. We evaluate global networks of cropland connectivity for key vegetatively-propagated crops (banana and plantain, cassava, potato, sweetpotato, and yam) important for food security in the tropics. For each crop, potential movement between geographic location pairs was evaluated using a gravity model, with associated uncertainty quantification. The highly-linked hub and bridge locations in cropland connectivity risk maps are likely priorities for surveillance and management, and for tracing intra-region movement of pathogens and pests. Important locations are identified beyond those locations that simply have high crop density. Cropland connectivity risk maps provide a new risk component for integration with other factors – such as climatic suitability, genetic resistance, and trade routes – to inform Pest Risk Assessment and mitigation.