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Ecology & Evolutionary Biology: Recent submissions
Now showing items 921-940 of 1921
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A new Andean species of Augochloropsis from Peru (Hymenoptera: Halictidae)
(Universidade Estadual de Feira de Santana, 2008-01-01)A new high-elevation species of the augochlorine bee genus Augochloropsis Cockerell (Anthophila: Apoidea: Halictidae: Halictinae: Augochlorini) is described and figured. Augochloropsis (Paraugochloropsis) isabelae, new ... -
Relating Body Size to the Rate of Home Range Use in Mammals
(Ecological Society of America, 1988-04-01)The area occupied or traversed by an animal is a function of the time period considered, but few empirical estimates of the temporal component of home range use are available. We used a statistic called the "time to ... -
Review of Taxonomy and identification of steamer-ducks (Anatidae: Tachyeres)
(Central Ornithology Publication Office, 1993-07-01)The authors of this mono graph set out to fulfill six objectives: (1) to present a history of the study of the genus Tachyeres, (2) to provide generic and specific synonymies and species accounts, (3) to summarize the ... -
Biology of Cooperative-Breeding Scrub Jays (Aphelocoma coerulescens) of Oaxaca, Mexico
(Central Ornithology Publication Office, 1993-04-01)We studied a cooperative-breeding population of Scrub Jays (Aphelocoma coerulescens) in Oaxaca, Mexico. The jays occupied territories 1.5 ha in average size located in a wide range of habitats and were found in temporally ... -
Phylogeny and Rates of Molecular Evolution in the Aphelocoma Jays (Corvidae)
(Central Ornithology Publication Office, 1992-01-01)I examined hypotheses of Aphelocoma jay phylogeny derived from allozyme data. Results from various algorithms differ in details, but the overall patterns are consistent: Scrub Jays (A. coerulescens) and Unicolored Jays (A. ... -
A study of the anatomical and physiological effects of the toxicity of galactose on seedlings
(University of Kansas, 1917.) -
The Oedipodinae of Kansas
(University of Kansas, 1917.) -
Field Experiments on Responses of a Freshwater, Benthic Macroinvertebrate Community to Vertebrate Predators
(Ecological Society of America, 1981-04-01)We examined the seasonal importance of vertebrate predators in potentially regulating the abundance and diversity of the benthic macroinvertebrates in the littoral zone of a soft-bottom reservoir that receives thermal ... -
Regulation of Freshwater Community Structure at Multiple Intensities of Dragonfly Predation
(Ecological Society of America, 1984-10-01)We examined the role played by predaceous dragonfly nymphs, Celithemis fasciata (Odonata: Libellulidae), in the regulation of the community structure of a benthic macroinvertebrate assemblage in Par Pond, an 1100-ha ... -
Effects of Microhabitat Selection on Feeding Rates of Net-Spinning Caddisfly Larvae
(Ecological Society of America, 1992-02-01)Net-spinning caddisfly larvae of the family Hydropsychidae are known to prefer microhabitats with large, stable substrate and high water flow velocity. It is often assumed that net spinners in high-velocity microhabitats ... -
Effects of crowding on growth rate and symbiosis in green hydra
(Ecological Society of America, 1975-01-01)In order to examine the relationship between crowding and growth rate in green hydra (Hydra viridis), we raised animals at various levels of fixed population densities; all new individuals in excess of the fixed densities ... -
The Role of Self-Incompatibility and Sexual Selection in the Gymnosperm-Angiosperm Transition: A Hypothesis
(University of Chicago Press, 1986-10-01)No abstract is available for this item. -
The Relationship Between Use and Suitability of Resources and Its Consequences to Insect Population Size
(University of Chicago Press, 1986-03-01)No abstract is available for this item. -
Behavioral Interactions between Parasites and Hosts: Host Suicide and the Evolution of Complex Life Cycles
(University of Chicago Press, 1980-07-01)The study of parasites and their hosts has typically focused on the physiological, morphological, and immunological adaptations to parasitism, adaptations which the parasite employs to survive and reproduce in the host and ... -
Spite and Altruism in Gulls
(University of Chicago Press, 1980-02-01)No abstract is available for this item. -
Spite, Altruism, and Semantics: A Reply to Waltz
(University of Chicago Press, 1982-01-01)No abstract is available for this item. -
Habitat Selection and Its Effect on Reproductive Output in the Herring Gull in Newfoundland
(Ecological Society of America, 1982-06-01)The breeding biology of the Herring Gull (Larus argentatus) was studied on Great Island, Newfoundland for part of the 1976 breeding season, and for two succeeding complete breeding seasons (1977 and 1978). Gulls nesting ... -
Infanticide Versus Adoption: An Intergenerational Conflict
(University of Chicago Press, 1991-11-01)Considerable attention has been paid to the phenomenon of infanticide in recent years. Five functional categories of infanticide have been defined. Here I concentrate on those that either have been described as the outcome ... -
Reviewed Work: A Century of Avifaunal Change in Western North America
(University of California Press, 1995-07-01)No abstract is available for this item. -
Adaptive Geographical Variation in Bill Shape of Scrub Jays (Aphelocoma coerulescens)
(University of Chicago Press, 1993-09-01)The hypothesis of an adaptive basis to geographical variation in scrub jay bill shapes was tested using morphometric and phylogenetic approaches. Bill shapes of scrub jays include a short, hooked form and a long, pointed ...