What Works in Conservation 2020
| , , ,1. Amphibian conservation
1.11 Habitat protection
Texte intégral
Trade-off between benefit and harms
Retain buffer zones around core habitat
1Two studies, including one replicated, controlled study, in Australia and the USA found that retaining unmown buffers around ponds increased numbers of frog species, but had mixed effects on tadpole mass and survival. One replicated, site comparison study in the USA found that retaining buffers along ridge tops within harvested forest increased salamander abundance, body condition and genetic diversity. However, one replicated study in the USA found that 30 m buffer zones around wetlands were not sufficient to protect marbled salamanders. Assessment: trade-offs between benefits and harms (effectiveness 50 %; certainty 50 %; harms 25 %).
2http://www.conservationevidence.com/actions/850
Unknown effectiveness (limited evidence)
Protect habitats for amphibians
3One replicated, site comparison study in the UK found that statutory level habitat protection helped protect natterjack toad populations. One before-and-after study in the UK found that protecting a pond during development had mixed effects on populations of amphibians. Assessment: unknown effectiveness — limited evidence (effectiveness 51 %; certainty 31 %; harms 9 %).
4http://www.conservationevidence.com/actions/820
Retain connectivity between habitat patches
5One before-and-after study in Australia found that retaining native vegetation corridors maintained populations of frogs over 20 years. Assessment: unknown effectiveness — limited evidence (effectiveness 60 %; certainty 31 %; harms 0 %).
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