Effects of increased salinity on tadpoles of two anurans from a Caribbean coastal wetland in relation to their natural abundance

Ríos-López, Neftalí

doi:10.1163/156853808783431451

Cited by 44 publications

(21 citation statements)

References 31 publications

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“…Direct effects of salinity include developmental anomalies, egg and larvae mortality, reduced larval growth rates, and altered larval behavior (Petranka and Francis 2013). Tadpoles living in saltwater have reduced survival even when the salinity is within the natural tolerance range of adults (Rios-Lopez 2008). Fish species seem to be more tolerant; adult fish species found in Australian freshwater wetlands can survive salinities of between 7 and 13 g TDS/L, even in early life stages; the growth optimum for juveniles is 3-5 g TDS/L (James et al 2003, Nielsen et al 2003.…”

Section: àmentioning

confidence: 99%

A global perspective on wetland salinization: ecological consequences of a growing threat to freshwater wetlands

et al. 2015

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Abstract. Salinization, a widespread threat to the structure and ecological functioning of inland and coastal wetlands, is currently occurring at an unprecedented rate and geographic scale. The causes of salinization are diverse and include alterations to freshwater flows, land-clearance, irrigation, disposal of wastewater effluent, sea level rise, storm surges, and applications of de-icing salts. Climate change and anthropogenic modifications to the hydrologic cycle are expected to further increase the extent and severity of wetland salinization. Salinization alters the fundamental physicochemical nature of the soil-water environment, increasing ionic concentrations and altering chemical equilibria and mineral solubility. Increased concentrations of solutes, especially sulfate, alter the biogeochemical cycling of major elements including carbon, nitrogen, phosphorus, sulfur, iron, and silica. The effects of salinization on wetland biogeochemistry typically include decreased inorganic nitrogen removal (with implications for water quality and climate regulation), decreased carbon storage (with implications for climate regulation and wetland accretion), and increased generation of toxic sulfides (with implications for nutrient cycling and the health/functioning of wetland biota). Indeed, increased salt and sulfide concentrations induce physiological stress in wetland biota and ultimately can result in large shifts in wetland communities and their associated ecosystem functions. The productivity and composition of freshwater species assemblages will be highly altered, and there is a high potential for the disruption of existing interspecific interactions. Although there is a wealth of information on how salinization impacts individual ecosystem components, relatively few studies have addressed the complex and often non-linear feedbacks that determine ecosystem-scale responses or considered how wetland salinization will affect landscape-level processes. Although the salinization of wetlands may be unavoidable in many cases, these systems may also prove to be a fertile testing ground for broader ecological theories including (but not limited to): investigations into alternative stable states and tipping points, trophic cascades, disturbance-recovery processes, and the role of historical events and landscape context in driving community response to disturbance.

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Section: àmentioning

confidence: 99%

A global perspective on wetland salinization: ecological consequences of a growing threat to freshwater wetlands

et al. 2015

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“…Those populations living in sensitive habitats, such as ephemeral ponds [48], coastal wetlands [49], arid and semi-arid systems [50], or alpine areas [51] are likely to see habitat loss or alteration as a result of changes in climate, which in turn may result in population decline or extirpation in these habitats. In addition, species with life history characteristics that make them more susceptible to changes in temperature or precipitation may be more likely to suffer mortality under changing climates.…”

Section: Effects Of Climate Change On Survivalmentioning

confidence: 99%

Direct and Indirect Effects of Climate Change on Amphibian Populations

et al. 2010

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Abstract:As part of an overall decline in biodiversity, populations of many organisms are declining and species are being lost at unprecedented rates around the world. This includes many populations and species of amphibians. Although numerous factors are affecting amphibian populations, we show potential direct and indirect effects of climate change on amphibians at the individual, population and community level. Shifts in amphibian ranges are predicted. Changes in climate may affect survival, growth, reproduction and dispersal capabilities. Moreover, climate change can alter amphibian habitats including vegetation, soil, and hydrology. Climate change can influence food availability, predator-prey relationships and competitive interactions which can alter community structure. Climate change can also alter pathogen-host dynamics and greatly influence how diseases are manifested. Changes in climate can interact with other stressors such as UV-B radiation and contaminants. The interactions among all these factors are complex and are probably driving some amphibian population declines and extinctions. OPEN ACCESSDiversity 2010, 2 282

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“…Dougherty and Smith 2006). Salinity also can influence the distribution and abundances of anurans in natural habitats (e.g., Smith et al 2007, Rios-Lopez 2008.…”

Section: Effects Of Salinity On Survivorship Of Wood Frogmentioning

confidence: 99%