干旱区生态环境知识资源中心(Arid): Sublethal pesticide exposure influences behaviour, but not condition in a widespread Australian lizard

Arid

DOI	10.1093/conphys/coac024
	Sublethal pesticide exposure influences behaviour, but not condition in a widespread Australian lizard
	Contador-Kelsall, Isabella; Maute, Kimberly; Story, Paul; Hose, Grant C.; French, Kristine
通讯作者	Contador-Kelsall, I
来源期刊	CONSERVATION PHYSIOLOGY
ISSN	2051-1434
出版年	2022
卷号	10 期号:1
英文摘要	Reptiles are overlooked in ecotoxicological research. We assessed the impacts of two commonly used pesticides, fipronil and fenitrothion, on a widespread Australian lizard, using ecologically relevant exposure. Fipronil reduced activity by >= 49% but did not impact physiological measures. Fenitrothion exposure did not result in detectible changes to behaviour or physiology. Assessment of non-target impacts of pesticides used widely in agriculture and pest management rarely considers reptiles. Despite their integral role in all ecosystems, particularly arid ecosystems, reptiles are not included in risk assessments. Two pesticides used in agricultural pest management are fipronil and fenitrothion. Here, we used a field-based BACI design experiment in semi-arid Australia to investigate the impact of these pesticides on basic physiological and behavioural parameters of a common arid-zone lizard species, Pogona vitticeps. Fipronil and fenitrothion were applied at ecologically relevant doses via oral gavage. Before and after dosing, blood, physical activity and body condition parameters were assessed. We found that temperature significantly influenced lizard activity in the morning period of movement; however, fipronil-treated individuals moved at least 49% less than fenitrothion-treated and control lizards from 7 days after dosing through to the end of the experiment. Physiological measures did not change significantly before or after exposure to both pesticides; however, other indicators showed evidence of exposure, which remained for the entirety of our monitoring period. On average, cholinesterase inhibition was still >30% compared with control lizards at the end of 4 weeks, and fipronil sulfone blood residues remained at 0.219 mu g/ml. Our study provides novel insights into the impacts that common pesticides have on widespread lizard species. We show that an ecologically relevant low dose of fipronil alters the behaviour of P. vitticeps, which has the potential to impact longer-term survivability. Persistence of both pesticides in the blood of all treatment lizards throughout the experiment indicates they are unable to clear these toxins within a month of being exposed. This may be significant for compounding exposure and latent toxicity. These findings highlight the susceptibility that reptiles have to a selection of common pesticides and the inherent need for higher prominence in wildlife ecotoxicological research.
英文关键词	pesticide lizard ecotoxicology body condition arid Activity
类型	Article
语种	英语
开放获取类型	Green Published, gold
收录类别	SCI-E
WOS记录号	WOS:000786708800001
WOS关键词	LOCUST CONTROL ; REPTILE ECOTOXICOLOGY ; FIPRONIL INSECTICIDE ; RUNNING ENDURANCE ; LACERTID LIZARD ; FARMLAND BIRDS ; CLIMATE-CHANGE ; FENITROTHION ; ORGANOPHOSPHORUS ; TOXICITY
WOS类目	Biodiversity Conservation ; Ecology ; Environmental Sciences ; Physiology
WOS研究方向	Biodiversity & Conservation ; Environmental Sciences & Ecology ; Physiology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/392191
推荐引用方式 GB/T 7714	Contador-Kelsall, Isabella,Maute, Kimberly,Story, Paul,et al. Sublethal pesticide exposure influences behaviour, but not condition in a widespread Australian lizard[J],2022,10(1).
APA	Contador-Kelsall, Isabella,Maute, Kimberly,Story, Paul,Hose, Grant C.,&French, Kristine.(2022).Sublethal pesticide exposure influences behaviour, but not condition in a widespread Australian lizard.CONSERVATION PHYSIOLOGY,10(1).
MLA	Contador-Kelsall, Isabella,et al."Sublethal pesticide exposure influences behaviour, but not condition in a widespread Australian lizard".CONSERVATION PHYSIOLOGY 10.1(2022).