Core terrestrial habitat for conservation of local populations of salamanders and wood frogs in agricultural landscapes

摘要: Abstract Pond-breeding amphibians require aquatic and terrestrial habitats to complete their lifecycles, preservation of both is necessary for maintaining local populations. Current wetland regulations focus primarily on habitats, criteria define critical upland protect them are often ambiguous or lacking. We examined the association between presence seven pond-breeding amphibian species landscape composition surrounding 54 wetlands located within Till Plains Glaciated Plateau ecoregions Ohio, USA. quantified 200 m (“core zone”) area extending from 1 km (“broader context zone”). constructed binary logistic regression models each species, evaluated using Akaike Information Criterion. Presence spotted salamanders (Ambystoma maculatum), Jefferson's salamander complex (A. jeffersonianum) smallmouth texanum) was positively associated with amount forest core zone. wood frogs (Rana sylvatica) zone broader tiger tigrinum tigrinum) negatively cumulative length paved roads site, red-spotted newts (Notophthalmus v. viridescens) average linear distance five nearest wetlands. Overall diversity zone, predatory fish site. Our results confirm strong structure areas at breeding ponds, stress importance preserving habitat around diversity.