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81. RENESTING DETERMINES SEASONAL FECUNDITY IN SONGBIRDS: WHAT DO WE KNOW? WHAT...
HEADNOTE ABSTRACT.- Because of the difficulty of following female songbirds through an entire breeding season, field ornithologists are seldom able to directly measure seasonal fecundity ... (PERIODICAL ARTICLE)
82. RELATIONSHIPS AMONG MERCURY CONCENTRATIONS, HORMONES, AND NESTING EFFORT OF...
HEADNOTE ABSTRACT.- Mercury, a common wetland pollutant, can affect wildlife populations through acute toxicity or through physiological effects that modify behavior and negatively influence reproductive ... (PERIODICAL ARTICLE)
83. PHYLOGENY OF TITMICE (PARIDAE): II. SPECIES RELATIONSHIPS BASED ON...
HEADNOTE ABSTRACT.- We present a phylogenetic hypothesis for 40 species in the bird family Paridae, based on comparisons of nucleotide sequences of the mitochondrial cytochrome-b ... (PERIODICAL ARTICLE)
84. CONCORDANCE BETWEEN MORPHOLOGICAL AND MOLECULAR MARKERS IN ASSESSING...
HEADNOTE ABSTRACT.- Hybridization is pivotal in framing ideas about species concepts and has the potential to produce novel genotypes that may serve as starting points ... (PERIODICAL ARTICLE)
85. PROTOGYNY IN AUTUMN MIGRATION: DO MALE BIRDS "PLAY CHICKEN"?
HEADNOTE ABSTRACT.- Protandry, the earlier arrival of males than of females on breeding areas, occurs in many taxa, including many migratory birds. Numerous hypotheses have ... (PERIODICAL ARTICLE)
86. PHYLOGENETIC POSITION AND GENERIC PLACEMENT OF THE SOCORRO WREN (THRYOMANES...
HEADNOTE ABSTRACT. - Since early in its taxonomic history, placement of the Socorro Wren (Thryomanes sissonii) has been an object of contention. Of particular interest ... (PERIODICAL ARTICLE)
87. EFFECTIVENESS OF CALL-BROADCAST SURVEYS FOR MONITORING MARSH BIRDS
HEADNOTE ABSTRACT.- Many species of marsh birds (e.g. rails and bitterns) are believed to be declining in North America, yet we lack an effective monitoring ... (PERIODICAL ARTICLE)
88. SONG AND MATE CHOICE IN BIRDS: HOW THE DEVELOPMENT OF BEHAVIOR HELPS US...
AMONG HIS MANY contributions to the study of animal behavior, Nobel laureate Niko Tinbergen is perhaps best remembered for articulating the "four questions" of ethology, ... (PERIODICAL ARTICLE) | |
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81-88 (of 88) related articles
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81-88 (of 88) related articles
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