Lizards as model organisms to evaluate environmental contamination and biomonitoring

Silva, Jadna Maria; Navoni, Júlio Alejandro; Freire, Eliza María Xavier

doi:10.1007/s10661-020-08435-7

Cited by 17 publications

(8 citation statements)

References 42 publications

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“…The transfer of contaminants to carnivores having a higher position in the food web, such as reptiles, has been demonstrated for several metals (reviewed in Britta and Schiesari, 2010), making these animals valuable bioindicators of environmental pollution by heavy metals (Silva et al, 2020). Consistently, amphibians and lizards in our study concentrated more Cr and Ni than the other vertebrates, yet had lower concentrations than the wolf spiders.…”

Section: Trophic Transfer Of Ni and Cr To Carnivoressupporting

confidence: 82%

Trophic transfer of heavy metals along a pollution gradient in a terrestrial agro-industrial food web

et al. 2022

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Section: Trophic Transfer Of Ni and Cr To Carnivoressupporting

confidence: 82%

Trophic transfer of heavy metals along a pollution gradient in a terrestrial agro-industrial food web

et al. 2022

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“…Ящірки вважаються корисним об'єктом для біоіндикації екосистем, оскільки часто проживають у місцях забруднення, у тому числі на територіях застосування інсектицидів [7,31]. На території України ящірки входять до складу герпетофауни агроценозів та прилеглих до них екосистем, де в певних умовах мають значну чисельність [2,5].…”

Section: вступunclassified

Influence of pyrethroid and neonicotinoid insecticides on lizards (Reptilia, Squamata) (a review)

Yermolenko

Gasso

Spirina³

et al. 2021

vsllr

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Pyrethroid and neonicotinoid pesticides are synthetic substances that are distributed in different economic activity spheres and until recent times were considered one of the safe types of insecticides. It is known that the use of pyrethroid and neonicotinoid insecticides have certain environmental risks for animal populations. Reptiles manifest a significant sensitivity to this family of insecticides. Lizards (Lacertilia) is a numerous group of animals, a large number of species of which is associated with biotopes located in the landscapes influenced by pesticides. Features of toxic effects of pyrethroid and neonicotinoid insecticides are investigated on a small number of Lacertilia species and mainly on small lizards. An analysis of previous studies allowed identifying certain features of the toxic effect of pyrethroids and neonicotinoids on the lizards. Affecting this group of insecticides in lizards may increase mortality and neurological deviations, whose symptoms may reduce over time. Laboratory studies indicate that these substances can lead to increased lizard lethality and to hormonal, biochemical, and neuralgic deviations. The conducted studies indicate that these insecticides have an antiandrogenic effect that may decrease the reproductive success of lizards. The metabolism of insecticides in the lizard organism causes the formation of toxic metabolites, which may be accompanied by a greater poisoning of the lizard body than detoxification. Enantiomers of the investigated insecticides, exhibit a different degree of toxicity. A number of parameters of toxic effects are proposed as biomarkers of intoxication with pyrethroid and neonicotinoid insecticides. Lizards can be used for bioindication of synthetic insecticides, but the research activities on this issue began to grow in recent decades.

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“…Lizards are a diverse group in the Neotropics (Nogueira et al 2009;Ribeiro-J unior & Amaral 2016). They are strongly influenced by environmental factors and can be excellent models for ecological studies (Pianka et al 2017;Silva et al 2020). Lizard assemblages vary in species richness, abundance and composition in the diverse habitats of the Cerrado (Nogueira et al 2005(Nogueira et al , 2009Vitt et al 2007;Novelli et al 2012), mainly due to the presence of several specialist species (Vitt 1991;Vitt et al 2007;Nogueira et al 2009), with traits that vary according to the habitats and microhabitats used (Lanna et al 2021).…”

Section: Introductionmentioning

confidence: 99%

“…2017; Silva et al . 2020). Lizard assemblages vary in species richness, abundance and composition in the diverse habitats of the Cerrado (Nogueira et al .…”

Section: Introductionmentioning

confidence: 99%

Taxonomic, functional, and phylogenetic diversity of lizard assemblages across habitats and seasons in a Brazilian Cerrado area

2022

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One of the core issues in community ecology is the understanding of mechanisms that determine community structure. In this study, we examine how two structurally distinct habitats (campo sujoa grassy savanna habitat with low shrubby coverand seasonal semi-deciduous forest) and distinct hydrological seasons (dry and rainy) influence the taxonomic, functional and phylogenetic diversity of lizard assemblages in a savanna area in the Brazilian Cerrado. We used pitfall traps to sample lizards from May 2000 to February 2002. To quantify spatio-temporal changes in the lizard assemblages, we used parameters of taxonomic (species richness -SR), functional (functional diversity -SES.FD, functional redundancy -FR and functional dispersion -FDis), and phylogenetic diversity (phylogenetic species richness -PSR and phylogenetic species variability -PSV). We also estimate functional and phylogenetic structure of the assemblages in each habitat during dry and rainy seasons. We recorded 182 lizards distributed among 14 species. Species composition differed among habitat types, but did not differ seasonally within habitats. SES.FD, FDis, and FR also differed among habitat types but not among seasons, with SES.FD and FDis being greater in seasonal semi-deciduous forest, while FR was greater in campo sujo. SR, PSR, and PSV were not influenced by the factors analysed. The lizard assemblage of campo sujo was functionally clustered in the dry season and phylogenetically clustered in the rainy season. These results demonstrate that differences among habitat types and seasons are important in shaping the taxonomic, functional, phylogenetic diversity and structure of lizard assemblages in the savanna area studied. Our study also demonstrates the importance of using different measures of diversity to obtain a better understanding on the mechanisms that influence the lizard assemblages in a highly seasonal environment.

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Lizards as model organisms to evaluate environmental contamination and biomonitoring

Cited by 17 publications

References 42 publications

Trophic transfer of heavy metals along a pollution gradient in a terrestrial agro-industrial food web

Trophic transfer of heavy metals along a pollution gradient in a terrestrial agro-industrial food web

Influence of pyrethroid and neonicotinoid insecticides on lizards (Reptilia, Squamata) (a review)

Taxonomic, functional, and phylogenetic diversity of lizard assemblages across habitats and seasons in a Brazilian Cerrado area

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