Spatial heterogeneity of plant-soil feedbacks increases per capita reproductive biomass of species at an establishment disadvantage.

abstract：:The rates at which bumblebees of different proboscis lengths forage on flowers of a series of corolla tube lengths were determined. The results indicate significant correlations between proboscis length and time spent by bees on flowers. Bumblebees of long proboscis length can forage significantly faster than bees of ...

journal_title：Oecologia

authors： Inouye DW

更新日期：1980-05-01 00:00:00

abstract：:The photosynthetic responses of a range of trebouxioid lichens were investigated to determine whether variations in net assimilation rates shown by populations of the same species collected from different habitats could be correlated with adjustments in carbon-concentrating mechanism (CCM) activity. The activity of a ...

journal_title：Oecologia

authors： Smith EC,Griffiths H

更新日期：1998-01-01 00:00:00

abstract：:1 Intake of food, fat, protein and carbohydrates and their fecal output were recorded during the annual body weight cycle of the garden warbler, and old-world longdistance migratory bird species, and the efficiencies of food and nutrient utilization, defined as the ratio (intake-fecal output)/intake, were calculated. ...

journal_title：Oecologia

authors： Bairlein F

更新日期：1985-12-01 00:00:00

abstract：:The goal of this study was to evaluate the contribution of oak trees (Quercus spp.) and their associated mycorrhizal fungi to total community soil respiration in a deciduous forest (Black Rock Forest) and to explore the partitioning of autotrophic and heterotrophic respiration. Trees on twelve 75 × 75-m plots were gir...

journal_title：Oecologia

authors： Levy-Varon JH,Schuster WS,Griffin KL

更新日期：2012-05-01 00:00:00

abstract：:The growth of metacommunity ecology as a subdiscipline has increased interest in how processes at different spatial scales structure communities. However, there is still a significant knowledge gap with respect to relating the action of niche- and dispersal-assembly mechanisms to observed species distributions across ...

journal_title：Oecologia

authors： McCauley SJ,Davis CJ,Relyea RA,Yurewicz KL,Skelly DK,Werner EE

更新日期：2008-11-01 00:00:00

abstract：:We modeled the dynamics of a metapopulation of the land snail Arianta arbustorum in north-eastern Switzerland to investigate the effect of population subdivision on the persistence of a land snail metapopulation and to analyze the interaction between spatial factors, population subdivision, and catastrophes. We develo...

journal_title：Oecologia

authors： Akçakaya HR,Baur B

更新日期：1996-03-01 00:00:00

abstract：:The impacts of disturbance on biodiversity and distributions have been studied in many systems. Yet, comparatively less is known about how lichens-obligate symbiotic organisms-respond to disturbance. Successful establishment and development of lichens require a minimum of two compatible yet usually unrelated species t...

journal_title：Oecologia

authors： Tripp EA,Lendemer JC,McCain CM

更新日期：2019-06-01 00:00:00

abstract：:We used a complete block design to experimentally study direct and indirect interactions in a three trophic-level freshwater system consisting of a top predator, the green sunfish, Lepomis cyanellus, an intermediate predator, small-mouthed salamander larvae, Ambystoma barbouri, and prey, hatchling isopods, Lirceus fon...

journal_title：Oecologia

authors： Huang C,Sih A

更新日期：1991-02-01 00:00:00

abstract：:Relatively few published food webs have included parasites, and in this study we examined the animal community in a stream across eight contiguous seasons to test how inclusion of helminth parasites alters the topology or structure of the food web. Food webs constructed for each season and analyzed using common binary...

journal_title：Oecologia

authors： Hernandez AD,Sukhdeo MV

更新日期：2008-06-01 00:00:00

abstract：:Proteolytic activity in the gut contents of two cichlids and six cyprinids from an artificial basin in Sri Lanka was measured using a simple film strip method. This comparative study contributes to our general knowledge of digestion in herbivorous fish: 1) Specific proteolytic activity (per ml of gut content) is lower...

journal_title：Oecologia

authors： Hofer R,Schiemer F

更新日期：1981-03-01 00:00:00

abstract：:Plant isoprene emissions are known to contribute to abiotic stress tolerance, especially during episodes of high temperature and drought, and during cellular oxidative stress. Recent studies have shown that genetic transformations to add or remove isoprene emissions cause a cascade of cellular modifications that inclu...

journal_title：Oecologia

authors： Monson RK,Weraduwage SM,Rosenkranz M,Schnitzler JP,Sharkey TD

更新日期：2021-01-08 00:00:00

abstract：:The response to a single defoliation was studied on three clones of Themeda triandra collected in the short, mid, and tall grassland regions of the Serengeti National Park (Tanzania). These sites represent a gradient of decreasing grazing intensity. Growth, allocation pattern, and several morphometric traits were moni...

journal_title：Oecologia

authors： Oesterheld M,McNaughton SJ

更新日期：1988-11-01 00:00:00

abstract：:An automated, fiber optic point quadrat system for vegetation sampling is described. Because the effective point diameter of this system never exceeds 25 μm it minimizes the substantial errors which can arise with conventional point quadrats. Automatic contact detection eliminates operator subjectivity, and permits wo...

journal_title：Oecologia

authors： Caldwell MM,Harris GW,Dzurec RS

更新日期：1983-09-01 00:00:00

abstract：:Nitrogen (N2) fixation was estimated along an aridity gradient in Namibia from the natural abundance of 15N (δ15N value) in 11 woody species of the Mimosacease which were compared with the δ15N values in 11 woody non-Mimosaceae. Averaging all species and habitats the calculated contribution of N2 fixation (N f ) to le...

journal_title：Oecologia

authors： Schulze ED,Gebauer G,Ziegler H,Lange OL

更新日期：1991-11-01 00:00:00

abstract：:In many mammals, early survival differs between the sexes, with males proving the more fragile sex ["Fragile male (FM) hypothesis"], especially in sexually dimorphic species where males are the larger sex. Male-biased allocation (MBA) by females may offset this difference. Here, we evaluate support for the FM and MBA ...

journal_title：Oecologia

authors： Kraus C,Mueller B,Meise K,Piedrahita P,Pörschmann U,Trillmich F

更新日期：2013-04-01 00:00:00

abstract：:Spatial and temporal niche differentiation are potential mechanisms of plant species' coexistence in many communities, including many grasslands. In a 6-year field experiment, a dominant prairie bunchgrass, Schizachyrium scoparium, excluded species sharing similar phenology and rooting depth, but coexisted with specie...

journal_title：Oecologia

authors： Fargione J,Tilman D

更新日期：2005-05-01 00:00:00

abstract：:The energy turnover of weevil populations ofPhyllobius argentatus L.,Polydrosus undatus F., andStrophosomus sp. was investigated in a 123 years old (1970) beech forest in special consideration of their soil-living rhizophagous larvae (results of the energy turnover ofStrophosomus sp. imagines, see Grimm, 1973). I. Lif...

journal_title：Oecologia

authors： Schauermann J

更新日期：1973-12-01 00:00:00

abstract：:Although predator avoidance has been proposed as one possible factor influencing the distribution of fish among substrate types, no study has addressed this question directly. Groups of juvenile Atlantic cod were offered a choice between pairs of the following three substrates: sand, gravel-pebble and cobble. Their di...

journal_title：Oecologia

authors： Gotceitas V,Brown JA

更新日期：1993-02-01 00:00:00

abstract：:Not all hosts, communities or environments are equally hospitable for parasites. Direct and indirect interactions between parasites and their predators, competitors and the environment can influence variability in host exposure, susceptibility and subsequent infection, and these influences may vary across spatial scal...

journal_title：Oecologia

authors： Gehman AM,Grabowski JH,Hughes AR,Kimbro DL,Piehler MF,Byers JE

更新日期：2017-01-01 00:00:00

abstract：:To examine the importance of Na+ and Cl- to osmotic adjustment in a salt-tolerant ecotype of the C4 nonhalophyte Andropogon glomeratus, plants were watered with sorbitol, a neutral osmoticum, and synthetic seawater, for five days. Gas exchange measurements were made during the course of the watering treatment and duri...

journal_title：Oecologia

authors： Bowman WD

更新日期：1988-11-01 00:00:00

abstract：:Both phenotypic and genetic quality can influence the survival of individuals through time, although their relative influences are rarely addressed simultaneously. Here we used capture-mark-recapture modelling to assess the influence of both multilocus heterozygosity (MLH) and body size on apparent adult survival in a...

journal_title：Oecologia

authors： Cézilly F,Quinard A,Motreuil S,Pradel R

更新日期：2016-01-01 00:00:00

abstract：:Arthropods and pathogens damage leaves in natural ecosystems and may reduce photosynthesis at some distance away from directly injured tissue. We quantified the indirect effects of naturally occurring biotic damage on leaf-level photosystem II operating efficiency (Phi(PSII)) of 11 understory hardwood tree species usi...

journal_title：Oecologia

authors： Aldea M,Hamilton JG,Resti JP,Zangerl AR,Berenbaum MR,Frank TD,Delucia EH

更新日期：2006-08-01 00:00:00

abstract：:Due to an overlap in the resources used by the flight muscles with the resources used during egg production, it has been hypothesised that an increased dispersal in fragmented landscapes may result in a physiological trade-off between flight and reproduction. In a common garden experiment, we investigated the effects ...

journal_title：Oecologia

authors： Gibbs M,Van Dyck H

更新日期：2010-06-01 00:00:00

abstract：:Climate plays a fundamental role in limiting the range of a species, is a key factor in the dynamics of large herbivores, and is thought to be involved in declines of moose populations in recent decades. We examined effects of climate and growing-season phenology on recruitment (8-9 months old) of young Shiras moose (...

journal_title：Oecologia

authors： Monteith KL,Klaver RW,Hersey KR,Holland AA,Thomas TP,Kauffman MJ

更新日期：2015-08-01 00:00:00

abstract：:In long-lived colonial birds, age at recruitment is an important life-history character. Variation in this parameter may reflect differences in several factors, including competitive ability and breeding strategies. Further, these differences may be due to timing of hatching (for instance through differences in compet...

journal_title：Oecologia

authors： Prévot-Julliard AC,Pradel R,Julliard R,Grosbois V,Lebreton JD

更新日期：2001-03-01 00:00:00

abstract：:Trophic cascades have become a dominant paradigm in ecology, yet considerable debate remains about the relative strength of density- (consumptive) and trait-mediated (non-consumptive) effects in trophic cascades. This debate may, in part, be resolved by considering prey experience, which shapes prey traits (through ge...

journal_title：Oecologia

authors： Wood ZT,Fryxell DC,Moffett ER,Kinnison MT,Simon KS,Palkovacs EP

更新日期：2020-03-01 00:00:00

abstract：:Plasticity of plant traits is commonly quantified by comparing different phenotypes at the same age. In this paper, we present a method in which the effect of resource conditions on plant weight is used as a basis for quantifying the plasticity of individual plant traits. Abutilon theophrasti individuals were grown in...

journal_title：Oecologia

authors： Rice SA,Bazzaz FA

更新日期：1989-03-01 00:00:00

abstract：:The carotenoid composition of 33 species of green algal lichens and 5 species of blue-green algal lichens was examined and compared with that of the leaves of higher plants. As in higher plants, green algal lichen species which were found in both shade and full sunlight exhibited higher levels of the carotenoids invol...

journal_title：Oecologia

authors： Adams WW 3rd,Demmig-Adams B,Lange OL

更新日期：1993-07-01 00:00:00

abstract：:Predators can alter the outcome of ecological interactions among other members of the food web through their effects on prey behavior. While it is well known that animals often alter their behavior with the imposition of predation risk, we know less about how other features of predators may affect prey behavior. For e...

journal_title：Oecologia

authors： Turner AM,Fetterolf SA,Bernot RJ

更新日期：1999-02-01 00:00:00

abstract：:Species assembly patterns of local communities are shaped by the balance between multiple abiotic/biotic filters and dispersal that both select individuals from species pools at the regional scale. Knowledge regarding functional assembly can provide insight into the relative importance of the deterministic and stochas...

journal_title：Oecologia

authors： Kubota Y,Kusumoto B,Shiono T,Ulrich W

更新日期：2018-05-01 00:00:00