Quantitative food web analysis supports the energy-limitation hypothesis in cave stream ecosystems.

abstract：:Interactions among granivores and seeds depend on the foraging behaviour and morphology of the granivores and on the attributes and availability of seeds. We investigated seed selection by the seed harvesting ant Messor bouvieri in three adjacent plant communities in Spain by relating the harvested seeds to those in t...

journal_title：Oecologia

authors： Willott SJ,Compton SG,Incoll LD

更新日期：2000-10-01 00:00:00

abstract：:Flight of male and female Mexican bean beetle adults was examined in laboratory tests. The experimental design made it possible to examine flight behavior not only with respect to different types of hosts (young vs senescent common bean foliage) but also with respect to effects due to their utilization during particul...

journal_title：Oecologia

authors： Saks ME,Rankin MA,Stinner RE

更新日期：1988-03-01 00:00:00

abstract：:In East African savanna we found that leaves of mature tree species with symbiotic N2 fixation contained lower concentrations of polyphenols than leaves of species without this symbiosis. We suggest that the root symbiosis is costly to the plant in terms of photosynthate that otherwise could be used in chemical defens...

journal_title：Oecologia

authors： Thomas Palo R,Gowda J,Högberg P

更新日期：1993-03-01 00:00:00

abstract：:We explored whether a variation in predation and habitat complexity between conspecific populations can drive qualitatively different numerical dynamics in those populations. We considered two disjunct populations of the least killifish, Heterandria formosa, that exhibit long-term differences in density, top fish pred...

journal_title：Oecologia

authors： Richardson JM,Gunzburger MS,Travis J

更新日期：2006-04-01 00:00:00

abstract：:The mass loss of litter mixtures is often different than expected based on the mass loss of the component species. We investigated if the identity of neighbour species affects these litter-mixing effects. To achieve this, we compared decomposition rates in monoculture and in all possible two-species combinations of ei...

journal_title：Oecologia

authors： Hoorens B,Coomes D,Aerts R

更新日期：2010-02-01 00:00:00

abstract：:Plants of the cerrado tree species Qualea grandiflora and the annual herb Bidens gardneri were grown from seed in controlled environment rooms at 30/20° C and 12 hour photoperiod. Seedlings were grown in pots or small tubes containing sand and provided with various amounts of mineral solutions based on the formulation...

journal_title：Oecologia

authors： Felippe GM,Dale JE

更新日期：1990-01-01 00:00:00

abstract：:The effects of fertilization on leaf longevity and leaf mortality in the Alaskan evergreen shrub, Ledum palustre (Ait.) Hult., were investigated in a field experiment. The fertilization treatments included N alone, P alone, N plus P, and N plus P plus K. After 5 years all treatments had the same effect on leaf longevi...

journal_title：Oecologia

authors： Shaver GR

更新日期：1983-02-01 00:00:00

abstract：:Classical resource- and the less studied ratio-dependent models of predator-prey relationships provide divergent predictions as to the sustained ecological effects of bottom-up forcing. While resource-dependent models, which consider only instantaneous prey density in modelling predator responses, predict community re...

journal_title：Oecologia

authors： Bishop MJ,Kelaher BP,Smith MP,York PH,Booth DJ

更新日期：2006-10-01 00:00:00

abstract：:Difficulties in using genetic markers to demonstrate that changes in gene frequency cause fluctuations in the density of animal populations are illustrated. The frequency of chicks with light-coloured down increased during 4 years when population density of red grouse declined and the inherent level of aggressive beha...

journal_title：Oecologia

authors： Moss R,Watson A

更新日期：1987-10-01 00:00:00

abstract：:Demographic, functional, or habitat diversity can confer stability on populations via portfolio effects (PEs) that integrate across multiple ecological responses and buffer against environmental impacts. The prevalence of these PEs in aquatic organisms is as yet unknown, and can be difficult to quantify; however, unde...

journal_title：Oecologia

authors： Siple MC,Francis TB

更新日期：2016-01-01 00:00:00

abstract：:Climate change has been shown to affect the timing of reproduction, with earlier reproduction being associated with an increase in temperature. Changes in the timing of reproduction arise from changes in food availability as well as other factors, and differences in the timing of reproduction among sites may cause sit...

journal_title：Oecologia

authors： Møller AP

更新日期：2008-04-01 00:00:00

abstract：:The rarity of long-range seed dispersal (telechory) and commonness of antitelechory in desert plants are examined in light of contemporary mathematical theories of the evolution of dispersal and germination behaviors. Analysis of dispersal 3-habitat relationships in the flora of Israel supports the general trend towar...

journal_title：Oecologia

authors： Fllner S,Shmida A

更新日期：1981-10-01 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：:With multiple species introductions and rapid global changes, there is a need for comprehensive invasion models that can predict community responses. Evidence suggests that abiotic constraint, propagule pressure, and biotic resistance of resident species each determine plant invasion success, yet their interactions ar...

journal_title：Oecologia

authors： Byun C,de Blois S,Brisson J

更新日期：2015-05-01 00:00:00

abstract：:Increasing sea surface temperatures are predicted to alter marine plant-herbivore interactions and, thus, the structure and function of algal and seagrass communities. Given the fundamental role of host plant quality in determining herbivore fitness, predicting the effects of increased temperatures requires an underst...

journal_title：Oecologia

authors： Ledet J,Byrne M,Poore AGB

更新日期：2018-06-01 00:00:00

abstract：:In 1989, 313 foraging flights of common terns in the Wadden Sea were radio-tracked. The feeding trips lasted on average 115 min covering about 30 km per flight. Completely tracked flights had a mean radius of 6.3 km. The terns preferred distinct foraging areas in the Wadden Sea. These were visited at site-specific pha...

journal_title：Oecologia

authors： Becker PH,Frank D,Sudmann SR

更新日期：1993-03-01 00:00:00

abstract：:Reproduction is an important life history trait that strongly affects dynamics of plant populations. Although it has been well documented that elevated carbon dioxide (CO2) in the atmosphere greatly enhances biomass production in plants, the overall effect of elevated CO2 on reproductive allocation (RA), i.e., the pro...

journal_title：Oecologia

authors： Wang X,Taub DR,Jablonski LM

更新日期：2015-04-01 00:00:00

abstract：:1. The uptake of heavy metals via the alimentary tract can be an important factor for the metal budget of fish. 2. Concepts such as biomagnification, bioaccumulation, biotransference, or concentration factors, convey little information about the real threat originating from heavy metals in an aquatic food chain. 3. In...

journal_title：Oecologia

authors： Dallinger R,Prosi F,Segner H,Back H

更新日期：1987-08-01 00:00:00

abstract：:Prey subsidies originating from detritus add nutrients and energy to arboreal communities. Measurement of this subsidy is required in the understanding of how food web dynamics respond to changes in surrounding environments. Shrub spiders are one of the key predators involved in food web coupling. We evaluate the effe...

journal_title：Oecologia

authors： Haraguchi TF,Uchida M,Shibata Y,Tayasu I

更新日期：2013-04-01 00:00:00

abstract：:For unicellular organisms, a lack of effects of local species richness on ecosystem function has been proposed due to their locally high species richness and their ubiquitous distribution. High dispersal ability and high individual numbers may enable unicellular taxa to occur everywhere. Using our own and published da...

journal_title：Oecologia

authors： Hillebrand H,Watermann F,Karez R,Berninger UG

更新日期：2001-01-01 00:00:00

abstract：:Natural regeneration of abandoned farmland provides an important opportunity to contribute to global reforestation targets, including the Bonn Challenge. Of particular importance are the montane tropics, where a long history of farming, frequently on marginal soils, has rendered many ecosystems highly degraded and hot...

journal_title：Oecologia

authors： Hethcoat MG,King BJ,Castiblanco FF,Ortiz-Sepúlveda CM,Achiardi FCP,Edwards FA,Medina C,Gilroy JJ,Haugaasen T,Edwards DP

更新日期：2019-10-01 00:00:00

abstract：:Understanding social evolution requires us to understand the processes regulating the number of breeders within social groups and how they partition reproduction. Queens in polygynous (multiple queens per colony) ants often seek adoption in established colonies instead of founding a new colony independently. This mode...

journal_title：Oecologia

authors： Holzer B,Chapuisat M,Keller L

更新日期：2008-10-01 00:00:00

abstract：:Macoma balthica (L.) is a common clam of the estuarine seafloor, belonging to an important group of invertebrates possessing the capacity to choose between the two fundamental modes of feeding available, using its siphon to inhale either suspended food particles from the water or food particles deposited on the sedime...

journal_title：Oecologia

authors： Skilleter GA,Peterson CH

更新日期：1994-12-01 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：:Northern hemispheric background concentrations of ozone are increasing, but few studies have assessed the ecological significance of these changes for grasslands of high conservation value under field conditions. We carried out a 3-year field experiment in which ozone was released at a controlled rate over three exper...

journal_title：Oecologia

authors： Wedlich KV,Rintoul N,Peacock S,Cape JN,Coyle M,Toet S,Barnes J,Ashmore M

更新日期：2012-04-01 00:00:00

abstract：:One explanation for long-term fluctuations in population density is that the intensity of interactions between species is variable. A population can experience variation in the intensity of a species interaction if (1) the density of species with which it directly interacts changes and/or (2) the strength of the inter...

journal_title：Oecologia

authors： Chalcraft DR,Andrews RM

更新日期：1999-05-01 00:00:00

abstract：:Leaf surface conductance and apparent photosynthesis were measured during late summer and autumn on saplings and sprouts of pin cherry (Prunus pensylvanica), yellow birch (Betula alleghaniensis), American beech (Fagus grandifolia), and sugar maple (Acer saccharum) naturally revegetating a site in the northern hardwood...

journal_title：Oecologia

authors： Amthor JS,Gill DS,Bormann FH

更新日期：1990-08-01 00:00:00

abstract：:The seasonal changes in plant community architecture and its importance to insect herbivores during the ruderal-early stages of an experimental secondary successional gradient are described. The dominant group of insect herbivores, the Auchenorrhyncha (Hemiptera: Homoptera) are considered together with their host plan...

journal_title：Oecologia

authors： Stinson CS,Brown VK

更新日期：1983-01-01 00:00:00

abstract：:We deal with the causes of the synchronously fluctuating numbers of subpopulations of the carabid species Calathus melanocephalus as compared with the asynchronously fluctuating numbers of subpopulations of the carabid Pterostichus versicolor. Both species continuously occupy a large heath area, Dwingelder Veld (1600 ...

journal_title：Oecologia

authors： van Dijk TS,den Boer PJ

更新日期：1992-06-01 00:00:00

abstract：:Plasticity in the physiological and behavioural responses of animals to prolonged food shortages may determine the persistence of species under climate warming. This is particularly applicable for species that can "adaptively fast" by conserving protein to protect organ function while catabolizing endogenous tissues. ...

journal_title：Oecologia

authors： Whiteman JP,Harlow HJ,Durner GM,Regehr EV,Amstrup SC,Ben-David M

更新日期：2018-02-01 00:00:00