Structure and organization of canopy bird assemblages in lowland neotropical rainforests [PDF]
, 2010 Although birds of the forest canopy are an important component of tropical forest ecosystems, difficulty accessing the forest canopy has limited the advancement of knowledge pertaining to this group of species. Here I test methods for the study of canopy
Anderson, David Lawrence
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Synthesis of knowledge on the effects of fire and fire surrogates on wildlife in US dry forests [PDF]
, 2009 Summary: Dry forests throughout the United States are fire-dependent ecosystems, and much attention has been given to restoring their ecological function.
Fontaine, J.B., Kennedy, P.L.
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Annotated List of the Birds of Ohio [PDF]
, 1968 Author Institution: Academic Faculty of Population and Environmental Biology, College of Biological Sciences, The Ohio State University, and the Ohio Historical Society, Columbus ...
Trautman, Mary Auten +1 more
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Stopover of Neotropical and Temperate Landbird Migrants on the South Shore of Lake Ontario during Spring Migration [PDF]
, 1997 Selected Neotropical and long-distance migratory landbirds were studied during spring migration at a known stopover site on the southern shore of Lake Ontario.
Jones, Gregory A.
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Organochlorine Pesticide Contamination in New World Passerines [PDF]
, 1997 Organochlorine pesticide contaminants detrimentally affect wildlife in many ways, including lowered reproductive success, endocrine disruption, and embryonic defects.
Sager \u2797, Tyler A.
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Extracting Long-Term Patterns of Population Changes from Sporadic Counts of Migrant Birds [PDF]
Declines of many North American birds are of conservation concern. Monitoring their population changes has largely depended on formally structured Breeding Bird Surveys, and Migration Monitoring Stations, although some use has been made of lists by ...
Christopher Field +3 more
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Further information on the relative length of the tarsus in land birds [PDF]
, 1966 A tendency for island land birds to have a longer tarsus (tarsometatarsus) than their mainland relatives has been discovered recently (Grant, 1965a)…
Grant, P. R.
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The influence of food and vegetation on bird distribution in tropical deciduous forest and dry oak woodland in western Mexico [PDF]
, 1996 Bird species densities, richness and diversity were estimated on 11 7 plots in a dry forest and oak woodland in western Mexico. The counts were performed during autumn 1990 and 1991 and spring 1991 and 1992.
Corcuera Martinez Del Rio, Pablo
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The Official List of the Birds of Nebraska: 2009 [PDF]
, 2009 The “Official List of the Birds of Nebraska: 2009” contains 454 species. The duties of NOU Records Committee (NOU Records Committee 1986) include: A. The committee shall publish an official list of the birds of Nebraska. B. The official list will include
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Possible steps in the evolutionary development of bird navigation [PDF]
Hypotheses are presented to explain the evolutionary development of navigational ability in migratory birds. Areas of discussion to describe the possible techniques are: (1) sun compass, (2) bicoordinate navigation, (3) star compass, (4) wind cues, (5 ...
Bellrose, F. C.
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