DNA Repair and Resistance to UV-B Radiation in Western Spotted Frogs

Blaustein, Andrew R.; Hays, John B.; Hoffman, Peter D.; Chivers, Douglas P.; Kiesecker, Joseph M.; Leonard, William P.; Marco, Adolfo; Olson, Deanna H.; Reaser, Jamie K.; Anthony, Robert G.

doi:10.2307/2641354

Cited by 11 publications

(19 citation statements)

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“…Research on embryonic amphibians in the Pacific Northwest, United States demonstrated a strong correlation between photolyase activity and resistance to UV‐B exposure (e.g. Hays et al ., 1996; Blaustein et al ., 1994a; Blaustein et al ., 1996; Blaustein et al ., 1999). For example, eggs of the most UV‐resistant species in field experiments (e.g.…”

Section: Field Experiments On Hatching Successmentioning

confidence: 54%

Ultraviolet radiation, toxic chemicals and amphibian population declines

Blaustein¹,

Romansic²,

Kiesecker³

et al. 2003

Diversity and Distributions

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217

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Abstract. As part of an overall ‘biodiversity crisis’, many amphibian populations are in decline throughout the world. Numerous factors have contributed to these declines, including habitat destruction, pathogens, increasing ultraviolet (UV) radiation, introduced non‐native species and contaminants. In this paper we review the contribution of increasing UV radiation and environmental contamination to the global decline of amphibian populations. Both UV radiation and environmental contaminants can affect amphibians at all life stages. Exposure to UV radiation and to certain contaminants can kill amphibians and induce sublethal affects in embryos, larvae and adults. Moreover, UV radiation and contaminants may interact with one another synergistically. Synergistic interactions of UV radiation with contaminants can enhance the detrimental effects of the contaminant and UV radiation.

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Section: Field Experiments On Hatching Successmentioning

confidence: 54%

Ultraviolet radiation, toxic chemicals and amphibian population declines

Blaustein¹,

Romansic²,

Kiesecker³

et al. 2003

Diversity and Distributions

Self Cite

363

217

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“…As for the last possibility, several researchers have found higher mortality rates among amphibian eggs exposed to ambient levels of UV‐B radiation than among those sheltered from UV‐B (e.g., Ankley et al 1998; Broomhall et al 2000; Kiesecker et al 2001; for a review of earlier literature see Blaustein et al 1998. However, amphibian species differ in their sensitivity to UV‐B radiation ( Blaustein et al 1994, 1999; Ovaska et al 1997; Anzalone et al 1998; Lizana & Pedraza 1999; Langhelle et al 1999; Broomhall et al 2000), and some species, such as the common frog ( Rana temporaria ), are considered tolerant of even high levels of UV‐B radiation (Cummins et al 1999; Langhelle et al 1999; Hofer & Mokri 2000; Merilä et al 2000 a ; Pahkala et al 2000; but see Pahkala et al 2001.…”

Section: Introductionmentioning

confidence: 99%

“…Furthermore, if the synergistic effects of UV‐B radiation and other abiotic stress factors (e.g., low pH, temperature) are important determinants of UV‐B stress tolerance, then populations subject to different environmental conditions may also differ in their tolerance of UV‐B radiation. Several researchers have compared UV‐B radiation tolerance among amphibian populations in field experiments conducted in different localities (Blaustein et al 1994, 1999; Kiesecker & Blaustein 1995; Corn 1998). These studies are useful for comparing UV‐B radiation tolerance within the environments where the investigations were conducted ( Blaustein et al .…”

Section: Introductionmentioning

confidence: 99%

Lethal and Sublethal Effects of UV‐B/pH Synergism on Common Frog Embryos

Pahkala

Räsänen

Laurila

et al. 2002

Conservation Biology

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Although the negative effects of ultraviolet-B (UV-B) radiation on the development of many amphibian species have been demonstrated, some species-such as the common frog ( Rana temporaria )-seem to be tolerant of UV-B radiation. The amount of UV-B radiation received is likely to vary among populations of the same species, but little is known about geographic variation in UV- FIN-90014 Oulu, Finland, email maarit.pahkala@oulu.fi Paper submitted December 8, 2000; revised manuscript accepted September 26, 2001. 1064 UV-B/pH Synergism in FrogsPahkala et al.

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“…Blaustein et al (1994) looked at embryonic sensitivity in two populations each of Pacific treefrogs (Hyla regilla), Cascades frogs (Rana cascadae), and western toads (Bufo boreas) and obtained the same results within each species, with Pacific treefrogs being consistently more resistant to UV‐B exposure than the other two species, regardless of population. Embryos from two populations of western spotted frogs (Rana pretiosa) were also found to be resistant to UV‐B (Blaustein et al 1999).…”

Section: Discussionmentioning

confidence: 99%

Population Differences in Sensitivity to Uv-B Radiation for Larval Long-Toed Salamanders

Belden

Blaustein

2002

Ecology

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Ultraviolet‐B radiation (UV‐B; 280–320 nm) penetrates some aquatic habitats to biologically significant depths and can alter life histories of aquatic organisms, including algae, zooplankton, fish, and amphibians. Although major species differences have been documented for UV‐B sensitivity, few studies have examined differences between populations of the same species. Previous work has suggested the hypothesis that larval long‐toed salamanders (Ambystoma macrodactylum) from valley populations (∼100 m elevation) were more sensitive to UV‐B exposure than larvae from mountain populations (above 500 m elevation). To test this hypothesis in the absence of possible other confounding environmental effects, we brought early‐stage embryos into the laboratory from three valley populations and five mountain populations from Oregon and Washington and raised them under identical conditions without UV‐B for two months after hatching. Larvae from each population were then placed under UV‐B lighting, and we recorded their growth and survivorship for three weeks. Larvae from all populations had higher mortality when exposed to UV‐B than when shielded from UV‐B. However, individuals from low‐elevation populations exposed to UV‐B had significantly lower survivorship than did those from high‐elevation populations, suggesting an elevational difference in UV‐B sensitivity. In all populations, individuals exposed to UV‐B were smaller than shielded individuals after one week. If UV‐B is a factor in determining the long‐term persistence of some amphibian species, an understanding of within‐species variation is critical.

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DNA Repair and Resistance to UV-B Radiation in Western Spotted Frogs

Cited by 11 publications

References 0 publications

Ultraviolet radiation, toxic chemicals and amphibian population declines

Ultraviolet radiation, toxic chemicals and amphibian population declines

Lethal and Sublethal Effects of UV‐B/pH Synergism on Common Frog Embryos

Population Differences in Sensitivity to Uv-B Radiation for Larval Long-Toed Salamanders

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