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Ecology & Evolutionary Biology: Recent submissions
Now showing items 1041-1060 of 1921
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Flight Without Horizon References in European Starlings
(University of California Press, 1998-07-01)No abstract is available for this item. -
Quantifying Relationships Between Bird And Butterfly Community Shifts And Environmental Change.
(The Ecological Society of America, 2006)Quantifying the manner in which ecological communities respond during a time of decreasing precipitation is a first step in understanding how they will respond to longer-term climate change. Here we coupled analysis of ... -
Montane meadow change during drought varies with background hydrologic regime and plant functional group
(The Ecological Society of America, 2010)Climate change models for many ecosystems predict more extreme climatic events in the future, including exacerbated drought conditions. Here we assess the effects of drought by quantifying temporal variation in community ... -
OVERSTORY-IMPOSED HETEROGENEITY IN SOLAR RADIATION AND SOIL MOISTURE IN A SEMIARID WOODLAND
(The Ecological Society of America, 1997)Abstract. Degradation of semiarid ecosystems is a major environmental problem worldwide, characterized by a reduction in the ratio of herbaceous to woody plant biomass. These ecosystems can be described as a set of canopy ... -
LONG-TERM REPRODUCTIVE OUTPUT IN WESTERN GULLS: CONSEQUENCES OF ALTERNATE TACTICS IN DIET CHOICE
(The Ecological Society of America, 1999)Abstract. Numerous studies reveal strong, positive skews in long-term breeding performance among free-living animals, yet few studies explore the mechanisms underlying such variation. We examine the results of a 12-yr study ... -
Apparent competition or apparent mutualism? shared predation when populations cycle
(The Ecological Society of America, 1998)We use simple mathematical models to explore the indirect interactions between two prey species that share a predator when all three species undergo population cycles. The results are compared to analogous findings for ... -
Interrelationships among landscape, NDVI, and stream water quality in the U.S. Central Plains
(Ecological Society of America, 2002-12-01)During late spring through summer of 1994 and 1995, 290 randomly selected stream sites in Nebraska, Kansas, and Missouri were sampled once for several parameters including conductivity, turbidity, total phosphorus, ... -
Fungal Symbionts (Harpellales) in Norwegian Aquatic Insect Larvae
(Mycological Society of America, 2004-07-01)Collections of aquatic insect larvae in Norway, over a 40 d period in May and Aug 2002, resulted in finding more than 25 species and one new genus of Harpellales (Trichomycetes). Nine new fungal symbionts are described and ... -
Ecological niche and phylogeography elucidate complex biogeographic patterns in Loxosceles rufescens (Araneae, Sicariidae) in the Mediterranean Basin.
(BioMed Central, 2014-10-09)Background: Understanding the evolutionary history of morphologically cryptic species complexes is difficult, and made even more challenging when geographic distributions have been modified by human-mediated dispersal. ... -
Symbiotic Harpellales (Trichomycetes) in Tasmanian aquatic insects
(Mycological Society of America, 2005-01-01)Surveys for symbiotic fungi in the guts of aquatic insect larvae (Trichomycetes: Harpellales) in Tasmania, Australia, resulted in the discovery of four new species: two in Gripopterygidae (Plecoptera) nymphs, Plecopteromyces ... -
Type specimens in modern ornithology are necessary and irreplaceable.
(Bio One, 2014-04-23)Recent years have seen a series of new species descriptions in which no type specimen or fragmentary type specimen material was provided as documentation. These descriptions have been controversial, but the Code of Zoological ... -
Can Natural History Museums Capture the Future?
(American Institute of Biological Sciences, 2000-01-01)See article for abstract. -
Defining viral species: making taxonomy useful
(BioMed Central, 2014-07-23)Virus taxonomy at present is best characterized as a categorization of convenience, without a firm basis in the principles of evolutionary biology. Specifically, virus species definitions appear to depend more on tradition ... -
Kin Selection in the Annual Plant Impatiens capensis
(University of Chicago Press, 1996-06-01)Kin selection occurs when phenotypic variation in a character or set of characters is heritable, spatially structured, and has differential fitness effects on neighboring individuals. Spatially structured, heritable variation ... -
A Manipulative Experiment to Estimate Biparental Inbreeding in Monkeyflowers
(University of Chicago Press, 2002-07-01)Biparental inbreeding occurs when plants receive pollen from genetically related neighbors. The frequency of biparental inbreeding in natural populations is unknown but directly relevant to the evolution of plant mating ... -
Corolla Morphology Facilitates Both Autogamy and Bumblebee Pollination in Mimulus guttatus
(University of Chicago Press, 2004-11-01)The showy corolla of Mimulus guttatus is generally considered an adaptation to attract pollinators. We use phenotypic manipulations to demonstrate that corolla morphology plays a critical mechanical role in both outcrossing ... -
Geographical Variation in Selection, from Phenotypes to Molecules
(University of Chicago Press, 2006-04-01)Molecular technologies now allow researchers to isolate quantitative trait loci (QTLs) and measure patterns of gene sequence variation within chromosomal regions containing important polymorphisms. I develop a simulation ... -
A Test of Baker’s Law: Breeding Systems and the Radiation of Tolpis (Asteraceae) in the Canary Islands
(University of Chicago Press, 2008-07-01)Baker’s law posits that self‐compatible (SC) plants will be more successful than self‐incompatible (SI) plants in long‐distance colonization because a single propagule can establish a viable population. Oceanic islands ... -
The genetic correlation between flower size and water use efficiency in monkeyflowers
(Evolutionary Ecology, 2008-01-01)Question: Does water loss during drought stress represent an important physiological constraint on the evolution of flower size? Organism: A genetically diverse population of Mimulus guttatus (yellow monkeyflower) ... -
Optimization of Virus-induced Gene Silencing to Facilitate Evo-devo Studies in the Emerging Model Species Mimulus guttatus (Phrymaceae)
(Missouri Botanical Society, 2014-05-01)Mimulus guttatus DC. (yellow monkey-flower; Phrymaceae) is an important model species for ecological and evolutionary studies, being locally adapted to a wide range of elevation, moisture and temperature gradients, soil ...