دورية أكاديمية
Predation pressure of invasive marsh frogs: a threat to native amphibians?
| العنوان: | Predation pressure of invasive marsh frogs: a threat to native amphibians? |
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| المؤلفون: | Pille, Fabien, Pinto, Laura, Denoël, Mathieu |
| المساهمون: | FOCUS - Freshwater and OCeanic science Unit of reSearch - ULiège |
| المصدر: | Diversity, 13 (11), 595 (2021-11-19) |
| بيانات النشر: | MDPI, 2021. |
| سنة النشر: | 2021 |
| مصطلحات موضوعية: | amphibian decline, invasive alien species, predatory risk, size-selective predation, Pelophylax ridibundus, water frogs, marsh frogs, biological invasion, pond, Hyla meridionalis, stomach flushing, diet, feeding, predation pressure, body size, seasonality, Life sciences, Environmental sciences & ecology, Zoology, Sciences du vivant, Sciences de l’environnement & écologie, Zoologie |
| الوصف: | Anurans have been introduced in many parts of the world and have often become invasiveover large geographic areas. Although predation is involved in the declines of invaded amphibianpopulations, there is a lack of quantitative assessments evaluating the potential risk posed to nativespecies. This is particularly true for Pelophylax water frogs, which have invaded large parts ofwestern Europe, but no studies to date have examined their predation on other amphibians in theirinvaded range. Predation of native amphibians by marsh frogs (Pelophylax ridibundus) was assessedby stomach flushing once a month over four months in 21 ponds in southern France. Nine percent ofstomachs contained amphibians. Seasonality was a major determinant of amphibian consumption.This effect was mediated by body size, with the largest invaders ingesting bigger natives, such astree frogs. These results show that invasive marsh frogs represent a threat through their ability toforage on natives, particularly at the adult stage. The results also indicate that large numbers ofnative amphibians are predated. More broadly, the fact that predation was site- and time-specifichighlights the need for repeated samplings across habitats and key periods for a clear understandingof the impact of invaders. |
| نوع الوثيقة: | journal article http://purl.org/coar/resource_type/c_6501Test article |
| اللغة: | English |
| العلاقة: | urn:issn:1424-2818 |
| DOI: | 10.3390/d13110595 |
| الوصول الحر: | https://orbi.uliege.be/handle/2268/265152Test |
| حقوق: | open access http://purl.org/coar/access_right/c_abf2Test info:eu-repo/semantics/openAccess |
| رقم الانضمام: | edsorb.265152 |
| قاعدة البيانات: | ORBi |
| DOI: | 10.3390/d13110595 |
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