...The relationships of many groups of birds within the OrderPasseriformes are poorly understood...
William B. Stallcup 「Myology and Serology of the Avian Family Fringillidae」
...Thus,it is obvious that studies based on other features are necessary inorder to attain a better understanding of the relationships of thebirds involved...
William B. Stallcup 「Myology and Serology of the Avian Family Fringillidae」
...The application of serological techniques to the problems ofanimal relationships has been attempted with varying degrees ofsuccess over a period of approximately fifty years...
William B. Stallcup 「Myology and Serology of the Avian Family Fringillidae」
...Working withgroups of known relationships, these investigators showed that the"accepted" systematic positions of certain birds were confirmed byserological procedures...
William B. Stallcup 「Myology and Serology of the Avian Family Fringillidae」
... Serological relationships of Carpodacus with the richmondenine-emberizine-thraupid assemblage...
William B. Stallcup 「Myology and Serology of the Avian Family Fringillidae」
...
Serological relationships of Spinus and Poephila with the richmondenines...
William B. Stallcup 「Myology and Serology of the Avian Family Fringillidae」
...The relationships of the species now includedin this Family have been the subject of much discussion and constitutean important problem in avian systematics...
William B. Stallcup 「Myology and Serology of the Avian Family Fringillidae」
...
Tordoff's attempts (1954) to clarify the relationships of the fringillidsand related species are based chiefly on features of the bonypalate...
William B. Stallcup 「Myology and Serology of the Avian Family Fringillidae」
...Serological relationships among domestic fowl as shown by comparisons of protein preparations from corresponding organ systems...
William B. Stallcup 「Myology and Serology of the Avian Family Fringillidae」
... Serological relationships of Spinus and Poephila with the richmondenines...
William B. Stallcup 「Myology and Serology of the Avian Family Fringillidae」
... Two views of a model illustrating serological relationships among fringillid and related birds...
William B. Stallcup 「Myology and Serology of the Avian Family Fringillidae」
...The whole problem of the relationships between host and cuckoo is most interesting...
Edward Saunders 「Wild Bees, Wasps and Ants」
...Faunal relationships and geographic distribution of mammals inSonora, Mexico...
E. Raymond Hall 「A Synopsis of the North American Lagomorpha」
...We have not found tadpoles of two species of Smilisca in the same bodyof water and therefore cannot offer observations on ecological relationships insympatric situations...
William E. Duellman 「Neotropical Hylid Frogs, Genus Smilisca」
...However, the similarity inpattern cannot be interpreted as indicating close relationships because nearlyidentical patterns are present in Hyla legleri and some species of Prostherapis...
William E. Duellman 「Neotropical Hylid Frogs, Genus Smilisca」
...A new cowbird of the genusMolothruswith a note on the probable genetic relationships of the North American forms...
Emil K. Urban 「Birds from Coahuila, Mexico」
...The jawmuscles of six Mourning Doves (Zenaidura) and five White-wingedDoves (Zenaida) were investigated as to differences and similaritiesthat might clarify the relationships of the genera...
Robert L. Merz 「Jaw Musculature of the Mourning and White-winged Doves」
...In any event, genetic relationships are evident in the configurationof breeding seasons of many species here treated...
Richard F. Johnston 「The Breeding Birds of Kansas」
...For this reason we feel that the relationships of thispopulation are best shown by arranging muralis as a subspecies ofThomomys bottae; the name should stand as Thomomys bottae muralisGoldman...
E. Raymond Hall 「Comments on the Taxonomy and Geographic Distribution of Some North American Rodents」
...Distribution, variation, and relationships of the montane vole,Microtus montanus...
Sydney Anderson 「Mammals of Mesa Verde National Park, Colorado」
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