Odonata, Amphibia and Environmental Characteristics in Motorway Stormwater Retention Ponds (Southern France)

Scher, Olivier; Thiéry, Alain

doi:10.1007/s10750-005-4464-z

Cited by 89 publications

(53 citation statements)

References 35 publications

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“…More work remains before we can really resolve the question of whether toxicants in general interfere with olfaction in anurans as they do in salmonids (Sandahl et al 2007). This remains a viable hypothesis that should be tested for other species of amphibians, other metals and biocides, and for the suite of chemicals that cooccur in road or agricultural runoff (Scher andThiery 2005, Corsi et al 2010).…”

Section: Discussionmentioning

confidence: 99%

“…Such trait changes in individuals may then alter the interactions between that species and other community members, leading to trait mediated indirect effects of contaminants on the whole community Hoverman 2006, Rohr et al 2006). Multiple stressor effects may be especially important in aquatic ecosystems because they contain proportionally more species of conservation concern than other ecosystems (Wilcove et al 2000), and because aquatic systems can concentrate pollutants through runoff from terrestrial habitats (Scher andThiery 2005, Snodgrass et al 2008). Additionally, predators in aquatic habitats often have large effects on the population dynamics of their prey (e.g., Shurin et al 2002, Borer et al 2005.…”

Section: Introductionmentioning

confidence: 99%

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Twice as easy to catch? A toxicant and a predator cue cause additive reductions in larval amphibian activity

et al. 2011

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Abstract. Toxicants may harm predators or prey differentially, hindering clear determination of multiple stressor effects on predation dynamics in polluted aquatic systems. We built on a prior field study in which we demonstrated that a chemical contaminant, copper (Cu) and odonate predators were correlated with more frequent observations of skeletal abnormalities in Alaskan wood frog (Rana sylvatica) tadpoles. Our prior study established a multiple stressor effect linked to an important environmental phenomenon (malformed amphibians) but did not provide clear mechanisms that might guide management. We here investigated behavioral mechanisms because of their potential to produce large changes in predation dynamics, and because in published studies low concentrations of Cu produced behavioral changes in predator-detection in fish. Surprisingly, low but environmentally relevant concentrations of Cu (5 lg/L) combined with chemical cues from a predator (Aeshna sitchensis) to produce large changes in the behavior of larval amphibians. Experiments demonstrated that a low concentration of Cu did not inhibit the ability of wood frog tadpoles to detect chemical cues of predators by olfactory means, but produced strong behavioral effects, causing tadpoles to reduce activity and alter microhabitat use. These results occurred with Cu at an exposure level lower than any we could find reported as toxic to amphibians in the literature. When Cu and predator cues were administered together, the activity reduction was additive and stronger at earlier life stages. We suggest that Cu intoxication would be disadvantageous to larval amphibian prey with prolonged exposure to predators during development, and we present field data from 2010 that support this assertion. Our study demonstrates the need to use sensitive behavioral assays and to investigate multiple stressor mechanisms to understand how multiple threats combine to affect organisms in nature.Key words: Alaska; amphibian; copper; frog; Lithobates sylvaticus; multiple stressor; predator; toxicity; trait-mediated interaction; Rana sylvatica.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Twice as easy to catch? A toxicant and a predator cue cause additive reductions in larval amphibian activity

et al. 2011

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“…Several studies have shown that ponds can contribute more to regional biodiversity than running waters (Williams et al 2004;Davies et al 2008) and whilst only a few ecological surveys have been conducted in urban ponds, they reveal that their biodiversity and conservation value can match their rural counterparts (Scher and Thièry 2005;Gledhill et al 2008;Vermonden et al 2009;Hassall and Anderson 2014;Hill et al 2015), potentially due to a unique community adapted to highly modified landscapes (Hill et al 2016). Nevertheless, urban pollution may reduce species richness in ponds, thereby increasing opportunities for non-native and or invasive species (Duguay et al 2006;McKinney 2008), especially when combined with other factors particular to urban settings (e.g.…”

Section: Introductionmentioning

confidence: 99%

Local and landscape scale determinants of macroinvertebrate assemblages and their conservation value in ponds across an urban land-use gradient

et al. 2017

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Urbanisation represents a growing threat to natural communities across the globe. Small aquatic habitats such as ponds are especially vulnerable and are often poorly protected by legislation. Many ponds are threatened by development and pollution from the surrounding landscape, yet their biodiversity and conservation value remain poorly described. Here we report the results of a survey of 30 ponds along an urban land-use gradient in the West Midlands, UK. We outline the environmental conditions of these urban ponds to identify which local and landscape scale environmental variables determine the biodiversity and conservation value of the macroinvertebrate assemblages in the ponds. Cluster analysis identified four groups of ponds with contrasting macroinvertebrate assemblages reflecting differences in macrophyte cover, nutrient status, riparian shading, the nature of the pond edge, surrounding land-use and the availability of other wetland habitats. Pond conservation status varied markedly across the sites. The richest macroinvertebrate assemblages with high conservation value were found in ponds with complex macrophyte stands and floating vegetation with low nutrient concentrations and little surrounding urban land. The most impoverished assemblages were found in highly urban 123Biodivers Conserv (2017) 26:1065-1086 DOI 10.1007/s10531-016-1286 ponds with hard-engineered edges, heavy shading and nutrient rich waters. A random forest classification model revealed that local factors usually had primacy over landscape scale factors in determining pond conservation value, and constitute a priority focus for management.

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“…Common macroinvertebrate species can colonize even the most degraded urban ponds (Wood et al, 2003). Storm water retention ponds and urban drainage systems at a landscape-scale can make a significant contribution to the regional freshwater biodiversity and support aquatic invertebrate communities of high conservation value (Scher and Thiery, 2005;Le Viol et al, 2009;Vermonden et al, 2009;Briers, 2014;Hassall, 2014). Six storm water retention ponds along the A7 and A54 roads in SW France supported 29 species of Odonata (Scher and Thiery, 2005).…”

Section: Urban Pondsmentioning

confidence: 99%

“…The majority of taxa supported within urban ponds were generalist taxa. However, urban ponds may be particularly important habitats for motile taxa such as Coleoptera and Odonata which can opportunistically colonize available habitat aerially (Scher and Thiery, 2005;Goertzen and Suhling, 2013).…”

Section: Conservation Valuementioning

confidence: 99%

Ecological Drivers of Cladoceran Diversity in the Central European City (Łódź, Poland): Effects of Urbanisation and Size of the Waterbody

Pawlikiewicz¹,

Jurasz

2017

Annales Zoologici Fennici

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Ponds are common and abundant features in nearly all landscapes typical of European lowland landscapes yet research on freshwater biodiversity has traditionally focussed on larger waterbodies such as lakes and rivers. This has led to an increased need to understand and quantify the biodiversity associated with pond habitats to better inform the active conservation and management of these small waterbodies. This thesis examines the aquatic macroinvertebrate biodiversity (alpha, beta and gamma) and conservation value of 95 ponds in Leicestershire, UK, across a variety of urban and rural landscape types and at a range of spatial scales. In addition, the relative importance of local (physicochemical and biological) and spatial (connectivity) variables in structuring macroinvertebrate communities within ponds is investigated. At a regional scale, the greatest macroinvertebrate biodiversity and conservation value was recorded within meadow ponds compared to urban, agricultural and forest ponds. Spatially, ponds were highly physically and biologically heterogeneous. Temporally (seasonally), invertebrate communities were most dissimilar in meadow and agricultural ponds but assemblages were similar in urban and forest ponds. In urban landscapes, park ponds supported a greater diversity of invertebrates than 'other' urban or garden ponds and typically had a greater conservation value. Garden ponds were the most taxon poor of those investigated. Perennial floodplain meadow ponds supported a greater biodiversity of invertebrates compared to ephemeral meadow ponds although conservation value was similar. Despite regular inundation from the River Soar, ephemeral ponds supported distinct communities compared to perennial meadow ponds. Aquatic macrophytes supported a higher diversity of taxa than other pond mesohabitats across all landscapes studied. Physicochemical factors were identified to be the dominant influence on macroinvertebrate assemblages although, a combination of local and spatial factors best explained the variation in community composition at a regional scale and for meadow ponds. Spatial factors were not identified to significantly influence urban pond communities. This study highlights the ecological importance and conservation value of ponds in rural and anthropogenically disturbed landscapes. Recognition of the significant contribution of ponds to freshwater biodiversity at regional and landscape scales is important for future conservation of pond habitats and will help focus and direct conservation strategies to where they are needed most.iv

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Odonata, Amphibia and Environmental Characteristics in Motorway Stormwater Retention Ponds (Southern France)

Cited by 89 publications

References 35 publications

Twice as easy to catch? A toxicant and a predator cue cause additive reductions in larval amphibian activity

Twice as easy to catch? A toxicant and a predator cue cause additive reductions in larval amphibian activity

Local and landscape scale determinants of macroinvertebrate assemblages and their conservation value in ponds across an urban land-use gradient

Ecological Drivers of Cladoceran Diversity in the Central European City (Łódź, Poland): Effects of Urbanisation and Size of the Waterbody

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