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Ecology & Evolutionary Biology: Recent submissions
Now showing items 901-920 of 1921
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Palaeofibulus Gen. nov., a Clamp-Bearing Fungus from the Triassic of Antarctica
(Mycological Society of America, 1989-07-01)No abstract is available for this item. -
A Trichomycete-like Fossil from the Triassic of Antarctica
(Mycological Society of America, 1989-07-01)No abstract is available for this item. -
Species Diversity and Distribution in Presence‐Absence Matrices: Mathematical Relationships and Biological Implications
(University of Chicago Press, 2008-10-01)The diversity of sites and the distribution of species are fundamental pieces in the analysis of biogeographic and macroecological questions. A link between these two variables is the correlation between the species diversity ... -
Inedible Producers in Food Webs: Controls on Stoichiometric Food Quality and Composition of Grazers
(University of Chicago Press, 2006-05-01)Ecological stoichiometry and food web theories focus on distinct mechanisms that shape communities. These mechanisms, however, likely interact in ways that neither theory alone addresses. To illustrate, we show how a model ... -
Apparent Size as the Determinant of Prey Selection by Bluegill Sunfish (Lepomis Macrochirus)
(Ecological Society of America, 1976-11-01)Although it is known that visual predation by planktivorous fish tends to be size selective, the mechanism by which fish select their prey has not previously been described. Experiments in which bluegill sunfish (Lepomis ... -
Reviewed Work: A Guide to the Birds of Mexico and Northern Central America
(Central Ornithology Publication Office, 1996-10-01)After years of using outdated field guides in Mexico and Central America, we awaited the arrival of the Guide to the Birds of Mexico with great anticipation. The guide is lengthy, totaling 851 pages and 71 plates full of ... -
Some Comments on Niche Analysis in Canonical Space
(Ecological Society of America, 1982-08-01)Discriminant functions have been used to identify axes of niche separation, and dispersion of locations on these axes have, in turn, been interpreted as representing niche width and specialization. We discuss the influence ... -
The Importance of Statistical Power When Testing for Independence in Animal Movements
(Ecological Society of America, 1986-02-01)No abstract is available for this item. -
Testing For Independence of Observations in Animal Movements
(Ecological Society of America, 1985-08-01)Many analyses of animal movements assume that an animal's position at time t + 1 is independent of its position at time t, but no statistical procedure exists to test this assumption with bivariate data. Using empirically ... -
The Effect of Sigmodon Hispidus on Spatial and Temporal Activity of Microtus Ochrogaster: Evidence for Competition
(Ecological Society of America, 1980-04-01)Spatial and temporal activities of cotton rats, Sigmodon hispidus, and prairie voles, Microtus ochrogaster, in an old-field habitat in northeast Kansas, USA were studied for 39 mo. During a major portion of the S. hispidus ... -
Statistical Detection of Density Dependence from a Series of Sequential Censuses
(Ecological Society of America, 1977-09-01)The use of simple linear regression to estimate slopes of plots of N(t + 1) against N(t) as a test of density dependence has been criticized because such data violate the assumption of negligible measurement error in the ... -
A new bee of the genus Cubitalia from Israel (Hymenoptera: Apidae)
(Akademie Verlag, 2006-01-01)A new species of the bee genus Cubitalia is described and figured from both sexes collected in Israel from flowers of Symphytum brachycalyx (Boraginaceae). Cubitalia (Cubitalia) baal sp. n., is most readily distinguished ... -
Phloem anatomy of the Carboniferous pteridosperm Medullosa and evolutionary trends in gymnosperm phloem
(University of Chicago Press, 1984-01-05)Secondary phloem anatomy is detailed for four species of Medullosa from various coal ball localities in North America, ranging from Lower-Middle to Upper Pennsylvanian. The zone of secondary phloem can be up to 3.7 mm ... -
Secondary phloem anatomy in Callistophyton boyssetii (Renault) Rothwell and histological changes in the outer phloem
(University of Chicago Press, 1984-01-01)Specimens with well-preserved phloem tissues of the pteridosperm Callistophyton boyssetii from coal balls in the Herrin no. 6 Coal of Illinois and the Bevier Coal of Kansas are described. The secondary phloem consists ... -
A new species of Chiasmognathus from Iran, with a note on Chiasmognathus aegyptiacus in Israel (Hymenoptera: Apidae)
(Akademie Verlag, 2008-01-01)A new species of the rare cleptoparasitic bee genus Chiasmognathus ENGEL (Ammobatini) is described and figured from a female collected in northwestern Iran. Chiasmognathus rhag ae sp. n. is generally similar to C. orientanus ... -
Two new orchid bees of the subgenus Euglossella from Peru
(Akademie Verlag, 2007-01-01)Two new orchid bees of Euglossa subgenus Euglossella (A pinae: Euglossini) are described and figured from Peru. Both Euglossa (Euglos sella) cosmodora sp. n. and E. (E.) urarina sp. n. belong to the decorata species group ... -
A new species of Eufriesea from Jalisco, Mexico, with a key to Mexican species of the genus (Hymenoptera: Apidae)
(Akademie Verlag, 2008-01-01)A new species of the orchid bee genus Eufriesea COCKERELL (Apidae: Apinae: Euglossini) is described and figured. Eufriesea micheneri sp. n. is generally similar to E. caerulescens (LEPELETIER DE SAINT FARGEAU) with is dark ... -
Uinta Ground Squirrel Demography: Is Body Mass a Better Categorical Variable Than Age?
(Ecological Society of America, 1987-06-01)We compared the relative impact of age and body mass on fecundity and survival in a population of Uinta ground squirrels, and modeled the population using bodymass classes as stage categories in Lefkovitch stage transition ... -
The Use of Regression for Detecting Competition with Multicollinear Data
(Ecological Society of America, 1988-07-01)Monte Carlo simulations were used to demonstrate that regression methods could be successfully used to estimate competition coefficients with collinear data, but only under conditions that may be difficult to meet with ... -
Reviewed Work: Evolutionary Differentiation in Morphology, Vocalizations, and Allozymes among Nomadic Sibling Species in the North American Red Crossbill (Loxia curvirostra) Complex
(Central Ornithology Publication Office, 1996-04-01)No abstract is available for this item.