Pesticide alters habitat selection and aquatic community composition

Vonesh, James R.; Kraus, Johanna M.

doi:10.1007/s00442-009-1301-5

Cited by 45 publications

(46 citation statements)

References 61 publications

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“…Our work also shares some elements with Vonesh and Kraus (2009) who reported that habitat selection and thus community structure were impacted by the presence of pesticides. Vonesh and Kraus (2009) make the point that habitat selection is not random yet this is often a default assumption in metapopulation models.…”

Section: Discussionsupporting

confidence: 73%

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Mosquito Biting and Movement Rates as an Emergent Community Property and The Implications for Malarial Interventions

Roitberg

Mangel

2010

Israel J Ecol Evol

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Malaria, a mosquito-vectored disease, continues to be one of the most important scourges afflicting humankind. In this paper, we take a mosquito-centric approach by studying mosquito states (i.e., energy, neurological health, and toxin information state) to demonstrate how key parameters of malaria, biting and movement rates and mosquito survival, are all emergent properties of those states when considered in the context of the background community interactions. We do so as follows: First, we develop a dynamic state variable model of mosquito biting and movement decisions that maximize mosquito expected reproductive success (fitness), and then we embed those optimal policies in a Monte Carlo simulation wherein mosquitoes attempt to feed on human hosts at domiciles where insecticide-treated bednets (ITNs) and insecticidal residual wall sprays (IRSs) are used. We find that biting rates, at the domicile level, are not impacted by mosquito state but that emigration rates from domiciles are determined by an interaction between mosquito energy state, information state, and risk of predation. This means that malaria incidence, at the village level at least, may be best understood as a response of mosquitoes to their ecological community that includes nectar-bearing plants, predators, the spatial arrangement of homes, and the protection of humans in those homes.

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Section: Discussionsupporting

confidence: 73%

“…Vonesh and Kraus (2009) make the point that habitat selection is not random yet this is often a default assumption in metapopulation models. Here we showed that leaving rates may differ among domiciles, but in a non-obvious manner that is driven by state dependence and the presence or absence of pesticides.…”

Section: Discussionmentioning

confidence: 99%

Mosquito Biting and Movement Rates as an Emergent Community Property and The Implications for Malarial Interventions

Roitberg

Mangel

2010

Israel J Ecol Evol

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“…[35]), but aquatic taxa may be susceptible to traps that arise in other ways (e.g. pollution [36]). A wider focus could allow the degree to which findings from particular studies might transfer to other sites and systems to be assessed, which is a key component of a general, predictive understanding of ecology [37].…”

Section: Resultsmentioning

confidence: 99%

Ecological traps: current evidence and future directions

Hale¹,

Swearer²

2016

Proc. R. Soc. B.

234

213

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Ecological traps, which occur when animals mistakenly prefer habitats where their fitness is lower than in other available habitats following rapid environmental change, have important conservation and management implications. Empirical research has focused largely on assessing the behavioural effects of traps, by studying a small number of geographically close habitat patches. Traps, however, have also been defined in terms of their population-level effects (i.e. as preferred habitats of sufficiently low quality to cause population declines), and this is the scale most relevant for management. We systematically review the ecological traps literature to (i) describe the geographical and taxonomic distribution of efforts to study traps, (ii) examine how different traps vary in the strength of their effects on preference and fitness, (iii) evaluate the robustness of methods being used to identify traps, and (iv) determine whether the information required to assess the population-level consequences of traps has been considered. We use our results to discuss key knowledge gaps, propose improved methods to study traps, and highlight fruitful avenues for future research.

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“…Extensive research documents the negative impact of these chemicals on freshwater life (e.g., Whitton 1970;Forstner and Prosi 1979;Munn et al 2006;Vonesh and Kraus 2009), yet more recently road salt deicers have been identified as a rising source of salinization to freshwaters in the United States (Kaushal et al 2005). Freshwater salinization is becoming a year-round phenomenon due to long-term storage and transport of dissociated salt ions (e.g., chloride, sodium, magnesium) in groundwater and soils (Jackson and Jobbagy 2005;Howard and Maier 2007;Kelly et al 2008;Mullaney et al 2009).…”

Section: Introductionmentioning

confidence: 99%

Salinization alters ecosystem structure in urban stormwater detention ponds

2011

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Stormwater ponds now comprise a significant portion of standing water in urban areas. These ponds act to sequester excess run-off and pollutants, such as road salt deicers. While these man-made ponds are not intended to serve as freshwater ecosystems, it is becoming clear that they do provide habitat for many organisms, but we know little of their ecosystem structure, function and interactions with pollutants. From April through June 2009, we surveyed 8 stormwater ponds in the Red Run Watershed, Baltimore County, Maryland, USA to describe patterns in aquatic food webs associated with a gradient in road salt inputs. Periphyton, phytoplankton and zooplankton samples were collected from each pond every 4-6 weeks. Specific conductance, a measure of chloride salt loading, among the 8 ponds varied widely throughout the survey, ranging from 99 μS cm −1 to 19,320 μS cm −1 . Low (average=404 +/− 82.6 (SE) μS cm −1 ) and medium (average=1749 +/− 267 (SE) μS cm −1 ) conductance ponds had lower algal biomass and higher densities of zooplankton taxa relative to high (average= 7231 +/− 2143 (SE) μS cm −1 ) conductance ponds, which were largely devoid of all zooplankton through the end of May. The observed decline in zooplankton density along an increasing chloride gradient is consistent with experimental results of road deicer effects, suggesting algal resources are possibly freed from grazing pressure as zooplankton consumers are negatively impacted by road salt exposure. Our results highlight the potential for both direct and indirect effects of road deicers on freshwater communities.

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Pesticide alters habitat selection and aquatic community composition

Cited by 45 publications

References 61 publications

Mosquito Biting and Movement Rates as an Emergent Community Property and The Implications for Malarial Interventions

Mosquito Biting and Movement Rates as an Emergent Community Property and The Implications for Malarial Interventions

Ecological traps: current evidence and future directions

Salinization alters ecosystem structure in urban stormwater detention ponds

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