Coexistence of white-footed mice and deer mice may be mediated by fluctuating environmental conditions.

abstract：:The effects of a number of factors, notably leaf mining insects, on the longevity of beech and holm oak leaves have been studied. The regular monitoring of individually labelled leaves was complemented by analysis of leaf fall data. Both methods confirm that these mining insects have only a slight impact on their host...

journal_title：Oecologia

authors： Pritchard IM,James R

更新日期：1984-09-01 00:00:00

abstract：:The legume foodplants of Colias butterflies possess specific chemical components which stimulate oviposition in females of the genus. Different legumes provide different degrees of stimulation, as demonstrated by close correlation between field observations and laboratory experiments with a new behavioral assay. Sever...

journal_title：Oecologia

authors： Stanton ML

更新日期：1979-01-01 00:00:00

abstract：:The impacts of climatic change on organisms depend on the interaction of multiple stressors and how these may affect the interactions among species. Consumer-prey relationships may be altered by changes to the abundance of either species, or by changes to the per capita interaction strength among species. To examine t...

journal_title：Oecologia

authors： Poore AG,Graba-Landry A,Favret M,Sheppard Brennand H,Byrne M,Dworjanyn SA

更新日期：2013-11-01 00:00:00

abstract：:Life history theory and empirical studies suggest that large size or earlier metamorphosis are suitable proxies for increased lifetime fitness. Thus, across a gradient of larval habitat quality, individuals with similar phenotypes for these traits should exhibit similar post-metamorphic performance. Here we examine th...

journal_title：Oecologia

authors： Van Allen BG,Briggs VS,McCoy MW,Vonesh JR

更新日期：2010-12-01 00:00:00

abstract：:Availability of light and water differs between tropical moist and dry forests, with typically higher understorey light levels and lower water availability in the latter. Therefore, growth trajectories of juvenile trees--those that have not attained the canopy--are likely governed by temporal fluctuations in light ava...

journal_title：Oecologia

authors： Brienen RJ,Zuidema PA,Martínez-Ramos M

更新日期：2010-06-01 00:00:00

abstract：:In the non-reproductive period, six species of brood parasites (4 cuckoos, 2 viduines) observed in Rhodesia and in the Kalahari were found to inhabit other areas than their hosts, being either nomadic or migratory in habit. They are hence exposed to different environmental conditions.Histological examination of the go...

journal_title：Oecologia

authors： Immelmann K

更新日期：1969-09-01 00:00:00

abstract：:Climate change causes species range expansions to higher latitudes and altitudes. It is expected that, due to differences in dispersal abilities between plants and soil biota, range-expanding plant species will become associated with a partly new belowground community in their expanded range. Theory on biological inva...

journal_title：Oecologia

authors： Wilschut RA,Magnée KJH,Geisen S,van der Putten WH,Kostenko O

更新日期：2020-10-01 00:00:00

abstract：:We determined the effects of defoliation by a graminivorous grasshopper on the foliage quality of the C3 plant, western wheatgrass (Pascopyrum smithii [Rydb] A. Love). Additionally, we determined the effects of this defoliation upon the subsequent feeding of the graminivorous grasshopper Phoetaliotes nebrascensis Thom...

journal_title：Oecologia

authors： Redak RA,Capinera JL

更新日期：1994-11-01 00:00:00

abstract：:We examined the functional response and foraging behavior of young moose (Alces alces) and white-tailed deer (Odocoileus virginianus) relative to animal size and the size and distribution of browse patches. The animals were offered one, three, or nine stems of dormant red maple (Acer rubrum) in hand-assembled patches ...

journal_title：Oecologia

authors： Shipley LA,Spalinger DE

更新日期：1995-09-01 00:00:00

abstract：:The impact of predation by the robber fly Proctacanthus milbertii Macquart on populations of adult grasshoppers from grasslands of the Nebraska sandhills was estimated. Densities of P. milbertii were estimated at 437 individuals per hectare (2 se=122). Overall densities of 23 species of grasshoppers were estimated to ...

journal_title：Oecologia

authors： Joern A,Rudd NT

更新日期：1982-10-01 00:00:00

abstract：:The effect of the heat interaction between a water column and sediments on the formation, development, and duration of existence of anaerobic zones in ice-covered lakes is estimated based on observational data from five frozen lakes located in northwestern Russia and North America. A simple one-dimensional model that ...

journal_title：Oecologia

authors： Golosov S,Maher OA,Schipunova E,Terzhevik A,Zdorovennova G,Kirillin G

更新日期：2007-03-01 00:00:00

abstract：:Nitrogen availability is a critical component of productivity in successional lowland rainforests, and nitrogen losses from a given system may largely depend on rates of nitrification in soils of the system. Two hypotheses were tested in a study of a 6-point secondary rainforest sere in the coastal lowlands of Costa R...

journal_title：Oecologia

authors： Philip Robertson G

更新日期：1984-01-01 00:00:00

abstract：:Mature growth-phase internodes of Alaska paper birch (Betula resinifera) are preferred by the snowshoe hare (Lepus americanus) over juvenile growth-phase internodes due to the low food value of the latter. While the mature over juvenile preferencec cannot be explained by the levels of inorganic nutrients or gross chem...

journal_title：Oecologia

authors： Reichardt PB,Bryant JP,Clausen TP,Wieland GD

更新日期：1984-12-01 00:00:00

abstract：:This study describes the germination responses of ten tropical dune species to several factors to which their seeds are exposed in the field. Species studied were: three sand dune endemics (Amaranthus greggii, Palafoxia lindenii, and Trachypogon gouini), three pantropical coastal species (Sesuvium portulacastrum, Spor...

journal_title：Oecologia

authors： Martínez ML,Valverde T,Moreno-Casasola P

更新日期：1992-12-01 00:00:00

abstract：:Many tropical regions show one distinct dry season. Often, this seasonality induces cambial dormancy of trees, particularly if these belong to deciduous species. This will often lead to the formation of annual rings. The aim of this study was to determine whether tree species in the Bolivian Amazon region form annual ...

journal_title：Oecologia

authors： Brienen RJ,Zuidema PA

更新日期：2005-11-01 00:00:00

abstract：:Bromus tectorum L. dominates sites of large-scale disturbance, while Poa pratensis L. dominates the sites of small-scale disturbance in the Festuca/Symphoricarpos habitat type in eastern Washington (USA). The role of incident irradiation in influencing these distributions was examined using field and glasshouse experi...

journal_title：Oecologia

authors： Bookman PA,Mack RN

更新日期：1983-03-01 00:00:00

abstract：:Ninety percent of wild red grouse examined carried threadworms in their intenstinal caeca. Old birds had 30 times as many worms as young birds. Some infections were as high as 30,000 worms. The occurrence of worms in old grouse conformed to the negative binomial distribution. ...

journal_title：Oecologia

authors： Wilson GR

更新日期：1983-05-01 00:00:00

abstract：:Historically, ecologists have been more interested in organisms feeding at the tops of food chains than in organisms feeding at or near the bottom. The problem of taxonomic and trophic inconsistency within and among described food webs is central to criticisms of contemporary food web research. To study the effects of...

journal_title：Oecologia

authors： Sugihara G,Bersier LF,Schoenly K

更新日期：1997-10-01 00:00:00

abstract：:As an extension of earlier investigations, the mating calls ofHyla arborea kretensis, Hyla a. molleri, andHyla a. sarda were studied, and variations in the calls with air temperature were determined. The mating calls of these species exhibit the typical structure, made up of short pulses of varying amplitude. The call...

journal_title：Oecologia

authors： Schneider H

更新日期：1974-03-01 00:00:00

abstract：:Environmentally controlled experiments on damping-off disease of garden cress (Lepidium sativum) caused by Pythium irregulare were used to study the effect of clumped planting patterns upon epidemic rates. In clumped stands of seedlings the rate of multiplication of disease was, in general, slower than in unclumped, e...

journal_title：Oecologia

authors： Burdon JJ,Chilvers GA

更新日期：1976-03-01 00:00:00

abstract：:The effects of tree height on shoot traits may in some cases differ in magnitude and direction from the effects of light. Nevertheless, general patterns of change in shoot traits in relation to variations in height and light have not so far been revealed. A comprehensive analysis of the differences between the effects...

journal_title：Oecologia

authors： Osada N,Okabe Y,Hayashi D,Katsuyama T,Tokuchi N

更新日期：2014-01-01 00:00:00

abstract：:Honeybees (Apis mellifera) and bumblebees (Bombus spp.) often undergo exploitative competition for shared floral resources, which can alter their foraging behaviour and flower choice, even causing competitive exclusion. This may be strongest in summer, when foraging conditions are most challenging for bees, compared t...

journal_title：Oecologia

authors： Wignall VR,Campbell Harry I,Davies NL,Kenny SD,McMinn JK,Ratnieks FLW

更新日期：2020-02-01 00:00:00

abstract：:Parasitic plants often attack multiple host species with unique defenses, physiology, and ecology. Reproductive phenology and vectors of parasitic plant genes (pollinators and dispersers) can contribute to or erode reproductive isolation of populations infecting different host species. We asked whether desert mistleto...

journal_title：Oecologia

authors： Yule KM,Bronstein JL

更新日期：2018-02-01 00:00:00

abstract：:The evolution of longevity requires a low risk of mortality from extrinsic factors, relative to intrinsic factors, so that individuals that differentially invest in physiological self-maintenance and minimize their annual reproductive costs will maximize lifetime fitness through a prolonged reproductive lifespan. The ...

journal_title：Oecologia

authors： Apanius V,Nisbet IC

更新日期：2006-02-01 00:00:00

abstract：:The effects of density on growth and development of Scaphiopus couchi tadpoles in desert ponds were investigated, and sources of mortality over a three-year period were documented. In 16 of the 82 ponds monitored, predation was the principal cause of death, demonstrating that tadpoles in desert ponds may be exposed to...

journal_title：Oecologia

authors： Newman RA

更新日期：1987-01-01 00:00:00

abstract：:The maintenance of separated diploid and polyploid populations within a contact zone is possible due to both prezygotic and postzygotic isolation mechanisms. Niche differentiation between two cytotypes may be an important prezygotic isolating mechanism and can be studied using reciprocal transplant experiments. We inv...

journal_title：Oecologia

authors： Raabová J,Fischer M,Münzbergová Z

更新日期：2008-12-01 00:00:00

abstract：:A trade-off between antimicrobial defences and palatability to dispersers may place limits on fruit persistence in nature. The retention times of ripe fruits on 34 wild plant species under natural conditions (unbagged persistence) and when fruits had been bagged with nylon mesh to exclude frugivores (bagged persistenc...

journal_title：Oecologia

authors： Tang AM,Corlett RT,Hyde KD

更新日期：2005-01-01 00:00:00

abstract：:Short-term effects of environmental perturbations on various life history traits are reasonably well documented in birds and mammals. But, in the present context of global climate change, there is a need to consider potential long-term effects of natal conditions to better understand and predict the consequences of th...

journal_title：Oecologia

authors： Nevoux M,Weimerskirch H,Barbraud C

更新日期：2010-02-01 00:00:00

abstract：:Global climate models forecast an increase in the frequency and intensity of extreme weather events, including severe droughts. Based on multi-year relationships between precipitation amount and aboveground annual net primary production (ANPP), semi-arid grasslands are projected to be among the most sensitive ecosyste...

journal_title：Oecologia

authors： Cherwin K,Knapp A

更新日期：2012-07-01 00:00:00

abstract：:It is often suggested that habitat attributes and interspecific interactions can cause non-random species co-occurrence patterns, but quantifying their contributions can be difficult. Null models that systematically exclude and include habitat effects can give information on the contribution of these factors to commun...

journal_title：Oecologia

authors： Azeria ET,Ibarzabal J,Hébert C

更新日期：2012-04-01 00:00:00