... Passerculus sandwichensis savanna... 
Chester A. Reed 「The Bird Book」
...I had not gonefar, and had reached the outskirts of an almosttreeless savanna, when my gun-bearer broughtme to a halt by the word mbogo...
Various 「Hunting in Many Lands」
...Thus, at Toocog we were able to work both in the forest and on the savanna...
William E. Duellman 「Amphibians and Reptiles of the Rainforests of Southern El Peten, Guatemala」
...At Toocog there is sharp break between savanna and forest (Pl...
William E. Duellman 「Amphibians and Reptiles of the Rainforests of Southern El Peten, Guatemala」
...These frogs were not so abundant in the forest at Toocog as they were around ponds on the savanna at La Libertad...
William E. Duellman 「Amphibians and Reptiles of the Rainforests of Southern El Peten, Guatemala」
...In early July, 1960, a few individuals were heard at a pond on the savanna at La Libertad...
William E. Duellman 「Amphibians and Reptiles of the Rainforests of Southern El Peten, Guatemala」
...Possibly the individual collected at Chinajá was accidentally transported there in cargo from Toocog, from which camp at the edge of the savanna planes fly to Chinajá weekly...
William E. Duellman 「Amphibians and Reptiles of the Rainforests of Southern El Peten, Guatemala」
...A contribution to a knowledge of the herpetology of a portion of the savanna region of central Petén, Guatemala...
William E. Duellman 「Amphibians and Reptiles of the Rainforests of Southern El Peten, Guatemala」
...Ruthven collected in the savanna country near Cuatotolapam, Veracruz;the report on his collections (1912) is the first dealing with theherpetofauna of a part of the isthmus...
William E. Duellman 「A Distributional Study of the Amphibians of the Isthmus of Tehuantepec, Mexico」
...According to Beard (1953: 291) the development of savanna vegetation isdependent upon soil, topography, and drainage...
William E. Duellman 「A Distributional Study of the Amphibians of the Isthmus of Tehuantepec, Mexico」
...In most savanna regions in the Americas the grasslandsbecome waterlogged or even partly flooded during the rainy season anddesiccated in the dry season...
William E. Duellman 「A Distributional Study of the Amphibians of the Isthmus of Tehuantepec, Mexico」
...Asmall village on the Río Papaloapan in northern Oaxaca; lowevergreen forest and savanna [11]...
William E. Duellman 「A Distributional Study of the Amphibians of the Isthmus of Tehuantepec, Mexico」
...Avillage on the Río Papaloapan; savanna [8]...
William E. Duellman 「A Distributional Study of the Amphibians of the Isthmus of Tehuantepec, Mexico」
...Anagricultural town on the Río Papaloapan; savanna and sugarplantations [7]...
William E. Duellman 「A Distributional Study of the Amphibians of the Isthmus of Tehuantepec, Mexico」
...Avillage on the Trans-isthmian Railroad; savanna and lowevergreen forest along streams [13]...
William E. Duellman 「A Distributional Study of the Amphibians of the Isthmus of Tehuantepec, Mexico」
...A town32 kilometers by road northwest of Acayucan; savanna and lowevergreen forest [14]...
William E. Duellman 「A Distributional Study of the Amphibians of the Isthmus of Tehuantepec, Mexico」
...An oilrefinery center on the Río Coatzacoalcos; savanna [20]...
William E. Duellman 「A Distributional Study of the Amphibians of the Isthmus of Tehuantepec, Mexico」
...In no individual habitat,such as rainforest, savanna, or scrub forest, does the number ofspecies approach the total for the region...
William E. Duellman 「A Distributional Study of the Amphibians of the Isthmus of Tehuantepec, Mexico」
...The two specimens from Cuatotolapam were collected by Ruthven in anarea of mixed savanna and forest...
William E. Duellman 「A Distributional Study of the Amphibians of the Isthmus of Tehuantepec, Mexico」
...Furthermore, this frog was notdetected in the rainforests of the Gulf lowlands; in that region it wasfound only in scrub forest and savanna...
William E. Duellman 「A Distributional Study of the Amphibians of the Isthmus of Tehuantepec, Mexico」
...The savanna vegetation of northern tropical America...
William E. Duellman 「A Distributional Study of the Amphibians of the Isthmus of Tehuantepec, Mexico」
...A contribution to a knowledge of the herpetology of aportion of the savanna region of central Petén, Guatemala...
William E. Duellman 「A Distributional Study of the Amphibians of the Isthmus of Tehuantepec, Mexico」
...A contribution to a knowledge of the herpetology of a portion of the savanna region of central Petén, Guatemala...
William E. Duellman 「Middle American Frogs of the Hyla microcephala Group」
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