Effects of fertiliser applications on survival and recruitment of the apple snail, Pomacea canaliculata (Lamarck)

Stuart, AM; Nogues Palenzuela, A; Bernal, CC; Ramal, AF; Horgan, FG

Effects of fertiliser applications on survival and recruitment of the apple snail, Pomacea canaliculata (Lamarck)

Stuart, AM Nogues Palenzuela, A Bernal, CC Ramal, AF Horgan, FG

Permalink

Publication Type:: Journal Article
Citation:: Crop Protection, 2014, 64 pp. 78 - 87
Issue Date:: 2014-01-01

Closed Access

	Filename	Description	Size
	1-s2.0-S0261219414001835-main.pdf	Published Version	1.16 MB	Adobe PDF	View/Open

Copyright Clearance Process

Recently Added
In Progress
Closed Access

This item is closed access and not available.

Full metadata record

Field	Value	Language
dc.contributor.author	Stuart, AM	en_US
dc.contributor.author	Nogues Palenzuela, A	en_US
dc.contributor.author	Bernal, CC	en_US
dc.contributor.author	Ramal, AF	en_US
dc.contributor.author	Horgan, FG https://orcid.org/0000-0003-3796-667X	en_US
dc.date.issued	2014-01-01	en_US
dc.identifier.citation	Crop Protection, 2014, 64 pp. 78 - 87	en_US
dc.identifier.issn	0261-2194	en_US
dc.identifier.uri	http://hdl.handle.net/10453/118182
dc.description.abstract	Since its introduction to Asia in the 1980s, the golden apple snail, Pomacea canaliculata (Lamarck), has represented a major constraint to the profitability of rice ( Oryza sativa L.) farming by damaging rice seedlings during crop establishment. This study describes a series of experiments designed to determine the effects of nitrogenous fertilisers on snail fitness. We examined the possibility of a two-phase model of snail response to nitrogen, whereby fertilisers initially increase snail mortality through toxicity, but once assimilated into the rice ecosystem, eventually favour snail reproduction and survival. In experimental arenas, fertiliser had lethal effects: Complete fertiliser (14:14:14), urea, ammonium sulphate and organic fertilisers were associated with snail mortality, generally affecting adult snails more than juvenile snails, and with greater effects when applied to saturated soil that was subsequently flooded (as opposed to direct application to flooded soil). Snail mortality was found to decline considerably when snails were added to arenas one day after fertiliser application - this occurred in arenas with soil and water, but not in arenas with water only, suggesting that soil can reduce the toxic effects of fertilisers. In a field experiment, snail numbers declined in both fertilised and non-fertilised plots at the time of crop establishment. Numbers increased in all plots after rice tillering, with significantly more recruitment in plots with high nitrogen. Although the responses were generally weak in the field experiment, they did support the two-phase model. The consequences of fertiliser applications for snail management and ecosystem health are discussed. © 2014 Elsevier Ltd.	en_US
dc.relation.ispartof	Crop Protection	en_US
dc.relation.isbasedon	10.1016/j.cropro.2014.05.020	en_US
dc.subject.classification	Entomology	en_US
dc.title	Effects of fertiliser applications on survival and recruitment of the apple snail, Pomacea canaliculata (Lamarck)	en_US
dc.type	Journal Article
utslib.citation.volume	64	en_US
utslib.for	0703 Crop and Pasture Production	en_US
pubs.embargo.period	Not known	en_US
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Science
pubs.organisational-group	/University of Technology Sydney/Faculty of Science/School of Life Sciences
utslib.copyright.status	closed_access
pubs.publication-status	Published	en_US
pubs.volume	64	en_US

Abstract:

Since its introduction to Asia in the 1980s, the golden apple snail, Pomacea canaliculata (Lamarck), has represented a major constraint to the profitability of rice ( Oryza sativa L.) farming by damaging rice seedlings during crop establishment. This study describes a series of experiments designed to determine the effects of nitrogenous fertilisers on snail fitness. We examined the possibility of a two-phase model of snail response to nitrogen, whereby fertilisers initially increase snail mortality through toxicity, but once assimilated into the rice ecosystem, eventually favour snail reproduction and survival. In experimental arenas, fertiliser had lethal effects: Complete fertiliser (14:14:14), urea, ammonium sulphate and organic fertilisers were associated with snail mortality, generally affecting adult snails more than juvenile snails, and with greater effects when applied to saturated soil that was subsequently flooded (as opposed to direct application to flooded soil). Snail mortality was found to decline considerably when snails were added to arenas one day after fertiliser application - this occurred in arenas with soil and water, but not in arenas with water only, suggesting that soil can reduce the toxic effects of fertilisers. In a field experiment, snail numbers declined in both fertilised and non-fertilised plots at the time of crop establishment. Numbers increased in all plots after rice tillering, with significantly more recruitment in plots with high nitrogen. Although the responses were generally weak in the field experiment, they did support the two-phase model. The consequences of fertiliser applications for snail management and ecosystem health are discussed. © 2014 Elsevier Ltd.

Please use this identifier to cite or link to this item:

http://hdl.handle.net/10453/118182