Urban wetlands of Delhi, India: water quality and pollution status

Joshi, Prerna; Siddaiah, N. Siva; Dixit, Arohi

doi:10.1080/02757540.2020.1836164

Cited by 14 publications

(2 citation statements)

References 70 publications

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“…for birds see Grant & Grant, 2003). This mode of studying the natural world is known as ‘autecology’ (Joshi & Joshi, 2021; Webb & Williams, 1973), and we believe the next step in advancing the field of tadpole biology is to embrace an autecological perspective. Advances in digital videography and increased access to high‐quality photography equipment have made it more financially and logistically feasible than ever before to do autecology on fast‐moving small vertebrates and invertebrates.…”

Section: Introductionmentioning

confidence: 99%

The case for studying tadpole autecology, with comments on strategies to study other small,fast‐movinganimals in nature

Annibale¹,

Wassersug

Rossa-Feres

et al. 2023

Austral Ecology

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Two of the most fundamental questions in tadpole biology, also applicable to most small, under‐studied organisms are: (1) ‘Why are they built the way they are?’ and (2) ‘Why do they live where they do?’ Regrettably, despite significant progress in most aspects of tadpole biology, the answers to these questions are not much better now than they were in the last century. We propose that an autecological approach, that is the careful observation of individuals and how they interact with the environment, is a potential path towards a fuller understanding of tadpole ecomorphology and evolution. We also discuss why more attention should be given to studying atypical tadpoles from atypical environments, such as torrential streams, water‐filled cavities of terrestrial plants and wet rock surfaces neighbouring streams. Granted, tadpoles are rare in these settings, but in those unusual habitats the physical environments can be well described and characterized. In contrast, the more common ponds where tadpoles are found are typically too structurally complex to be easily delineated. This makes it difficult to know exactly what individual tadpoles are doing and what environmental parameters they are responding to. Our overall thesis is that to understand tadpoles we must see exactly what they are doing, where they are doing it, and how they are doing it. This takes work, but we suggest it is feasible and could greatly advance our understanding of how anuran larvae have evolved. The same strategies for studying tadpoles that we encourage here can be applied to the study of many other small and fast‐moving animals.

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Section: Introductionmentioning

confidence: 99%

The case for studying tadpole autecology, with comments on strategies to study other small,fast‐movinganimals in nature

Annibale¹,

Wassersug

Rossa-Feres

et al. 2023

Austral Ecology

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“…Urban stormwaters became a key factor to assure the quality and safety of receivers' water bodies, once a signi cant amount of pollutants can reach the drainage system by runoff (Collins et al, 2010;Joshi et al, 2020;Müller et al, 2020;Zhang et al, 2015). In urban environments, the runoff is a signi cant source of diffuse pollution subject to confounding factors such as the season (Hilliges et al, 2017), land uses (Opher and Friedler, 2010), vehicle tra c (Berndtsson, 2013), industrial activities, rain event origin and intensity (Imfeld et al, 2020;Perera et al, 2019).…”

Section: Introductionmentioning

confidence: 99%

Contamination characteristics in runoff fractions from a nuclear facility in São Paulo, Brazil

Faustino,

Monteiro,

Lima

et al. 2023

Environ Monit Assess

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The stormwater runoff may act as a nonpoint pollutant source and in urban environments contributes to aquatic ecosystem quality decay. Here, we examined the runoff characteristics on the export of total solids and total metals, as well as pH and conductivity responses during the rainfall evolution. In 2017 and 2018, 12 rain events in 4 sampling stations were monitored at a parking lot located at Nuclear and Energy Research Institute (IPEN/CNEN) in São Paulo/Brazil. A 4-chamber integrated collector allowed the sequential/temporal runoff evolution assessment. The runoff was composed of Ca

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Molecular characterization and transcriptional modulation of stress-responsive genes under heavy metal stress in freshwater ciliate, Euplotes aediculatus

et al. 2022

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The concentration of heavy metals in the environment is increasing predominantly due to anthropogenic activities such as mining and other industrial activities. Exposure to metals above a certain threshold level induces deleterious effects in the living organisms. To survive such harsh environment, microbes possess a range of tolerance mechanisms and express stress-responsive genes and/or antioxidant enzymes to detoxify the metal stress.Protozoans, especially ciliates, are highly sensitive to the environmental changes, thereby making them suitable model systems for ecotoxicological studies. Thus, in the present work, the effect of heavy metals such as cadmium and copper has been studied in the freshwater ciliate, Euplotes aediculatus. This study focuses on the activity of antioxidant enzymes namely catalase and glutathione peroxidase in E. aediculatus under the heavy metal stress. Also, the expression of stress-responsive genes; heat-shock protein 70 (hsp70) and catalase (cat), has been studied after metal exposure. It was observed that the enzyme activity and the expression of these genes increased with an increase in the metal concentration and with the duration of metal exposure. Besides, these genes have been characterized to understand their role in cell defense. These genes of fresh water ciliate, therefore, can be used as molecular biomarkers to evaluate heavy metal toxicity.

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Urban wetlands of Delhi, India: water quality and pollution status

Cited by 14 publications

References 70 publications

The case for studying tadpole autecology, with comments on strategies to study other small,fast‐movinganimals in nature

The case for studying tadpole autecology, with comments on strategies to study other small,fast‐movinganimals in nature

Contamination characteristics in runoff fractions from a nuclear facility in São Paulo, Brazil

Molecular characterization and transcriptional modulation of stress-responsive genes under heavy metal stress in freshwater ciliate, Euplotes aediculatus

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