Licht-im-Terrarium: Literaturdatenbank
Licht-im-Terrarium: Literaturdatenbank |
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McFadden, M. S., Silla, A. J., Kelleher, S. R., & Byrne, P. G. (2025). Effects of ultraviolet radiation on the activity, survival, and growth of the critically endangered northern corroboree frog. Biology Open, 14(5), bio061827. Added by: Sarina (2025-06-06 11:33:26) Last edited by: Sarina (2025-06-06 11:51:19) |
| Resource type: Journal Article DOI: 10.1242/bio.061827 ID no. (ISBN etc.): 2046-6390 BibTeX citation key: McFadden2025 View all bibliographic details  |
Categories: Englisch = English Keywords: Amphibien = Amphibians, Ultraviolett = Ultraviolet Creators: Byrne, Kelleher, McFadden, Silla Collection: Biology Open |
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Meine Sichtweise (Keine vollständige Zusammenfassung des Artikels! Meine Meinung muss nicht mit der Meinung der Autoren übereinstimmen! Bitte lesen Sie auch die Originalarbeit!)
100 Jungtiere von Pseudophryne pengilleyi wurden in Gruppen von je 5 Tieren gehalten. Neben natürlichem Tageslicht durch Fenste rund Raumbeleuchtung wurden die Terrarien mit Reptisun T5HO 5.0 UVB Lampen aus ca. 25 cm Abstand bestrahlt. Die Hälfte der Terrarien hatten UV-Index 0.75 (Röhre mit Reflektor), die anderen 0.20 (Röhre ohne Reflektor). Gemessen mit Solarmeter 6.5. Die Tiere wurden in den 16 Wochen vor der ersten Winterruhe beobachtet. Die Tiere mit geringem UV-Index waren etwas aktiver, sonst gab es keine Unterschiede. Added by: Sarina |
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Ultraviolet radiation (UVR) is known to have lethal and sublethal impacts on amphibians, yet effects on anuran growth, development and behaviour remain understudied. As the global amphibian extinction crisis worsens, and more species enter conservation breeding programs (CBPs), there is a growing need to understand interrelationships between UVR exposure, growth, and UVR avoidance behaviour. Here, we investigate the effect of ecologically appropriate UVR levels on post-metamorphic growth and activity in the critically endangered northern corroboree frog (Pseudophryne pengilleyi). UVR was provided at one of two levels (lower UVI, ∼0.2 and higher UVI, ∼0.75), for a period of 16 weeks, spanning the first growth phase before hibernation. Daily activity was significantly lower in frogs reared under the higher UVR treatment (mean±s.e.m=26.339%±0.757) compared to those receiving the lower UVR treatment (mean±s.e.m=35.660%±0.837). Despite these differences, there was no significant difference between treatment groups in survival or growth. These findings indicate that northern corroboree frogs may have the capacity to adjust their behaviour in response to UVR and suggest that behavioural plasticity might mitigate potential negative impacts of UVR exposure. We discuss the value of this knowledge for amphibian CBPs.
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