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Ecology & Evolutionary Biology: Recent submissions
Now showing items 941-960 of 1921
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Trichomycetes in Argentinean Aquatic Insect Larvae
(Mycological Society of America, 1999-11-01)Investigations of larval aquatic Diptera (Chironomidae, Simuliidae, Culicidae), Coleoptera (Scirtidae), and Plecoptera (Gripopterygidae, Notonemouridae) in Buenos Aires Province and three Provinces in Patagonia (Rio Negro, ... -
Biological notes on Chauliognathus pennsylvanicus DeGeer (Coleoptera, Cantharidae)
(University of Kansas, 1933) -
Getting a Full Dose? Reconsidering Sex Chromosome Dosage Compensation in the Silkworm, Bombyx mori
(Oxford University Press, 2011-04-20)Dosage compensation—equalizing gene expression levels in response to differences in gene dose or copy number—is classically considered to play a critical role in the evolution of heteromorphic sex chromosomes. As the X and ... -
A New Fossil Conifer from the Triassic of North America: Implications for Models of Ovulate Cone Scale Evolution
(University of Chicago Press, 1998-03-01)See article for abstract. -
Gymnosperms from the Middle Triassic of Antarctica: The First Structurally Preserved Cycad Pollen Cone
(University of Chicago Press, 2003-11-01)The first permineralized cycad pollen cone is described from the lower Middle Triassic of Antarctica. The cone is characterized by helically arranged, wedge‐shaped microsporophylls, each with five or more spinelike projections ... -
Cycads from the Triassic of Antarctica: Permineralized Cycad Leaves
(University of Chicago Press, 2007-09-01)Permineralized cycad petioles and/or rachides with associated pinnae are described from two Triassic localities in the Queen Alexandria Range, central Transantarctic Mountains, Antarctica. Petiole‐rachides display an ... -
Lonchiphyllum aplospermum gen. et sp. nov.: An Anatomically Preserved Glossopterid Megasporophyll from the Upper Permian of Skaar Ridge, Transantarctic Mountains, Antarctica
(University of Chicago Press, 2013-03-01)A new anatomically preserved megasporophyll, Lonchiphyllum aplospermum, is described from permineralized peat collected on Skaar Ridge in the central Transantarctic Mountains. This new genus contains vascular features ... -
The Flight Physiology of Reproductives of Africanized, European, and Hybrid Honeybees (Apis mellifera)
(University of Chicago Press, 2005-02-25)Neotropical African honeybees (Apis mellifera scutellata), in the process of spreading throughout tropical and subtropical regions of the Americas, hybridize with and mostly replace European honeybees (primarily Apis ... -
Lack of Genetic Variation in Lacandonia schismatica (Lacandoniaceae: Triuridales) in Its Only Known Locality
(Missouri Botanical Garden Press, 1993-01-01)Lacandonia schismatica has only one known population in a small patch of tropical rain forest. Using electrophoretic techniques, we assessed its genetic variation in eight loci; no variation was found. We discuss this ... -
An International View of National Biological Surveys
(Missouri Botanical Garden Press, 1996-01-01)Museums and herbaria in industrialized countries hold a huge amount of data in the form of labels associated with specimens collected in developing countries. These data represent a significant part of the existing information ... -
Mapping Species Distributions: Spatial Inference and Prediction (Book-Review)
(University of Chicago Press, 2011-09-01)No abstract is available for this item. -
Failure to Detect Senescence in Persistence of Some Grassland Rodents
(Ecological Society of America, 1995-04-01)Several recent papers raise the question of how frequently senescence is detectable in survival estimates from natural populations of mammals. If animals do not age, the probability of disappearance is constant through ... -
Effects of Supplemental Food on Population Dynamics of Cotton Rats, Sigmodon Hispidus
(Ecological Society of America, 1995-04-01)Variation in resource abundance affects population dynamics by altering demographic processes and interactions among individuals in the population. For small mammals, food is likely to be a critical resource. Population ... -
Application of mark-recapture models to estimation of the population size of plants
(Ecological Society of America, 1997-06-01)Mark–recapture models have been widely used in ecology to estimate population sizes of animals. In contrast, estimation of plant population size has usually been assumed to be much easier. However, detection of individuals ... -
Effect of density reduction on Uinta ground squirrels: analysis of life table response experiments
(Ecological Society of America, 2001-07-01)The effects of natural or experimental environmental perturbations on populations can be diverse, simultaneously affecting several life history variables. Population-level responses to such influences frequently are measured ... -
Estimation of population size and probabilities of survival and detection in Mead's milkweed
(Ecological Society of America, 2003-03-01)Statistical similarities exist between estimating numbers of cryptic animals and of inconspicuous plants. Without flowers, Mead's milkweed (Asclepias meadii) is an unobtrusive prairie plant, and most plants flower irregularly. ... -
Male and Female Parental Roles in the Western Gull under Different Environmental Conditions
(University of California Press, 1981-07-01)I examined variation in parental care in the Western Gull (Larus occidentalis), spending two seasons on Southeast Farallon Island (SEFI), where the population was large and competition for breeding space appeared to be ... -
Proximate and Ultimate Causation of Egg Size and the "Third-Chick Disadvantage" in the Western Gull
(University of California Press, 1986-04-01)No abstract is available for this item. -
Community dynamics of ephemeral systems: food web drivers, community assembly, and anthropogenic impacts of playa wetlands
(University of Kansas, 2014-08-31)Scientists know relatively little about the ecology of ephemeral wetlands and few attempts have been made to integrate the published ecological studies. We use playa wetlands, a common aquatic feature of many arid to ... -
A Bayesian model for predicting local El Niño events using tree ring widths and cellulose δ18O
(American Geophysical Union, 2010-03-16)The oxygen stable isotopic composition (δ18O) of cellulose recorded in annual tree rings reflects the climate and precipitation history experienced during tree growth and development. Here, we show proxy evidence of El ...