If this is indicated, we'll attempt to find some evidence of his death before normal ecological operations on Eighteen are resumed.
"Gone Fishing"
James H. Schmitz
If this ecological segregation resulted from intraspecific competition in a stock of Ptychohyla, possibly P. euthysanota and P. schmidtorum differentiated sympatrically in this way.
"A Review of the Middle American Tree Frogs of the Genus Ptychohyla"
William E. Duellman
With the possible exception of the members of the Ptychohyla schmidtorum group, which has been found only in cloud forest, it seems as though the type of vegetation is not the controlling factor in the ecological distribution of these frogs.
"A Review of the Middle American Tree Frogs of the Genus Ptychohyla"
William E. Duellman