Asymmetric indirect interactions mediated by a shared parasitoid: connecting species traits and local distribution patterns for two chrysomelid beetles.

abstract：:There is growing recognition that changes in vegetation composition can strongly influence peatland carbon cycling, with potential feedbacks to future climate. Nevertheless, despite accelerated climate and vegetation change in this ecosystem, the growth responses of peatland plant species to combined warming and veget...

journal_title：Oecologia

authors： Walker TN,Ward SE,Ostle NJ,Bardgett RD

更新日期：2015-05-01 00:00:00

abstract：:Ecologically isolated habitats (e.g., oceanic islands) favor the appearance of small assemblages of pollinators, generally characterized by highly contrasted life modes (e.g., birds, lizards), and opportunistic nectar-feeding behavior. Different life modes should promote a low functional equivalence among pollinators,...

journal_title：Oecologia

authors： Rodríguez-Rodríguez MC,Jordano P,Valido A

更新日期：2013-09-01 00:00:00

abstract：:Concentration and isotopic composition (δ13C and δ18O) of ambient CO2 and water vapour were determined within a Quercus petraea canopy, Northumberland, UK. From continuous measurements made across a 36-h period from three heights within the forest canopy, we generated mixing lines (Keeling plots) for δa13CO2, δa C18O1...

journal_title：Oecologia

authors： Harwood KG,Gillon JS,Roberts A,Griffiths H

更新日期：1999-04-01 00:00:00

abstract：:Shorter male larval and pupal durations were sufficient to produce the protandrous emergence pattern of the black swallowtail butterfly. In 9 broods observed under natural conditions, the first male was seen 7.1±6.5 days before the first female, although the peak of captures relative to the first capture was similar i...

journal_title：Oecologia

authors： Lederhouse RC,Finke MD,Scriber JM

更新日期：1982-06-01 00:00:00

abstract：:The validity of nutrient use efficiency as a central concept in ecosystem ecology has recently been subject to challenge based upon arguments over autocorrelation of data, interpretation of graphical approaches, and appropriate statistical analyses. Much of the confusion on the measurement and interpretation of nutrie...

journal_title：Oecologia

authors： Pastor J,Bridgham SD

更新日期：1999-01-01 00:00:00

abstract：:The paper considers a model of competition, based upon the Lotka-Volterra equations, which explicitly considers the effect of density independent mortality upon the outcome of competition. The model's possible application to wild Drosophila species in Europe are considered. ...

journal_title：Oecologia

authors： Shorrocks B,Begon M

更新日期：1975-12-01 00:00:00

abstract：:Kelrick et al. (1986) argued that seed preferences of desert granivores are strongly influenced by soluble carbohydrate contents of native seed species. They assumed that bitterbrush (Purshia tridentata) seeds are eaten in their entirety by rodents, but in fact these granivores eat only embryos of bitterbrush seeds. E...

journal_title：Oecologia

authors： Jenkins SH

更新日期：1988-04-01 00:00:00

abstract：:We investigated the carbon supply status in species-rich mediterranean plant communities growing in a bowl-shaped 1-ha "CO2 spring" area near Sienna, Italy. A geothermic "lime-kiln" has provided these communities, for as long as historical records are available, with pure CO2 that mixes with ambient air at canopy leve...

journal_title：Oecologia

authors： Körner C,Miglietta F

更新日期：1994-09-01 00:00:00

abstract：:The life-cycle of the dominant brackish water ostracod Cyprideis torosa (Jones, 1850) has been studied during 4 years. The species has only one generation anually. Reproduction is fairly similar throughout the years and appears to be tuned in to temperature. The number of adults has one peak every year and can be desc...

journal_title：Oecologia

authors： Heip C

更新日期：1976-09-01 00:00:00

abstract：:The community structure of sedentary organisms is largely controlled by the outcome of direct competition for space. Understanding factors defining competitive outcomes among neighbors is thus critical for predicting large-scale changes, such as transitions to alternate states within coral reefs. Using a spatially exp...

journal_title：Oecologia

authors： Sandin SA,McNamara DE

更新日期：2012-04-01 00:00:00

abstract：:From 1977 through 1983 we conducted experiments on a desert rodent community where supplemental seeds were added or certain rodent species and ants were removed from 0.25-ha fenced plots in a Chihuahuan Desert site in southeastern Arizona, USA. In this paper we examine the patterns of microhabitat use relative to vege...

journal_title：Oecologia

authors： Bowers MA,Thompson DB,Brown JH

更新日期：1987-04-01 00:00:00

abstract：:The ecological overlap of three species of Hawaiian Drosophila: D. mimica D. kambysellisi, and D. imparisetae, has been investigated by analysis of the community matrix. The basic model is a Lotka-Volterra formulation, suitably expanded to include sexual dimorphism. We have also investigated equilibrium population siz...

journal_title：Oecologia

authors： Richardson RH,Smouse PE

更新日期：1975-03-01 00:00:00

abstract：:The structure and seasonal dynamics of phytoplankton communities in the littoral zone were compared between oligotrophic and eutrophic lakes in the southeastern United States. Differences in diversity and species composition between lakes could be ascribed to long-term variation in nutrients corresponding to trophic s...

journal_title：Oecologia

authors： Lemly AD,Dimmick JF

更新日期：1982-09-01 00:00:00

abstract：:Relationships between fine root growth, rates of litter decomposition and nutrient release were analysed in a mixed forest on Tierra Firme, a Tall Amazon Caatinga and a Low Bana on podsolized sands near San Carlos de Rio Negro. Fine root growth in the upper soil layers (root mat+10 cm upper soil) was considerably high...

journal_title：Oecologia

authors： Cuevas E,Medina E

更新日期：1988-07-01 00:00:00

abstract：:Fluorescent probes have been applied to study by epifluorescence microscopy interactions between species in an Anabaena flos-aquae association, derived from a freshwater community. Glycoconjugates (macromolecules containing carbohydrate residues) have been shown to play a vital role in recognition processes and in for...

journal_title：Oecologia

authors： Müller U,Sengbusch PV

更新日期：1983-05-01 00:00:00

abstract：:Decomposition of standing dead trees that were killed by fire was examined for 10 species in the Great Smoky Mountains National Park. The decrease in wood density as fire age increased was used to estimate decomposition rates. Quercus prinus had the fastest decay rate (11% yr-1) while Pinus virginiana had the slowest ...

journal_title：Oecologia

authors： Harmon ME

更新日期：1982-02-01 00:00:00

abstract：:Plasticity in water-use efficiency (WUE) was examined in populations of Picea glauca (Moench) Voss and P. sitchensis (Bong.) Carr. and their natural hybrids from an ecocline along the Skeena Valley, British Columbia, which runs from the dry continental interior (P. glauca) to the wet maritime Pacific coast (P. sitchen...

journal_title：Oecologia

authors： Silim S,Guy R,Patterson T,Livingston N

更新日期：2001-08-01 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：:Ring-shaped growth patterns commonly occur in resource-limited arid and semi-arid environments. The spatial distribution, geometry, and scale of vegetation growth patterns result from interactions between biotic and abiotic processes, and, in turn, affect the spatial patterns of soil moisture, sediment transport, and ...

journal_title：Oecologia

authors： Ravi S,D'Odorico P,Wang L,Collins S

更新日期：2008-12-01 00:00:00

abstract：:Stand thinning across different soil drainage types was used to test the ecophysiological basis for the control of foliar monoterpenes in current-year foliage of balsam trees [Abies balsamea (L.) P. Mill.] the year following treatment. Photosynthetic capacity (A max) was greater on mesic sites than on sub-hygric and h...

journal_title：Oecologia

authors： Lamontagne M,Bauce É,Margolis H

更新日期：2002-01-01 00:00:00

abstract：:In this paper, we test the mid-domain hypothesis as an explanation for observed patterns of flowering diversity in two sub-alpine communities of insect-pollinated plants. Observed species richness patterns showed an early-season increase in richness, a mid-season peak, and a late-season decrease. We show that a "mid-d...

journal_title：Oecologia

authors： Morales MA,Dodge GJ,Inouye DW

更新日期：2005-01-01 00:00:00

abstract：:Leaf water relationships were studied in four widespread forest tree species (Ilex opaca Ait., Cornus florida L., Acer rubrum L., and Liriodendron tulipifera L.). The individuals studied all occurred on the same site and were selected to represent a range of growth forms and water relationships in some of the principa...

journal_title：Oecologia

authors： Roberts SW,Strain BR,Knoerr KR

更新日期：1980-09-01 00:00:00

abstract：:Increases in woody vegetation and declines in grasses in arid and semi-arid ecosystems have occurred globally since the 1800s, but the mechanisms driving this major land-cover change remain uncertain and controversial. Working in a shrub-encroached grassland in the northern Chihuahuan Desert where grasses and shrubs t...

journal_title：Oecologia

authors： Throop HL,Reichmann LG,Sala OE,Archer SR

更新日期：2012-06-01 00:00:00

abstract：:Thirty-four species of marine macroalgae from around St. Andrews, Scotland, have been assayed for their external activity and thirty-three species for their total activity of carbonic anhydrase. Activity was detected in all the Rhodophyta tested apart from Chondrus crispus, but was absent in Codium fragile, Enteromorp...

journal_title：Oecologia

authors： Giordano M,Maberly SC

更新日期：1989-12-01 00:00:00

abstract：:Long-termed fumigation of pea seedlings with SO2 caused typical alterations of the concentration of free glutamate and glutamine as well as fluctuations of the activity of glutamate dehydrogenase and glutamine synthetase. Shortly after the beginning of the fumigation with low concentrations of SO2 (up to 0,3 ppm) the ...

journal_title：Oecologia

authors： Jäger HJ,Pahlich E

更新日期：1972-06-01 00:00:00

abstract：:White-footed mice, Peromyscus leucopus noveboracensis, and deer mice, P. maniculatus nubiterrae, occur sympatically throughout much of the Appalachian Mountains of the eastern United States. Previous studies have shown that these two species are behaviorally and ecologically similar and do not partition food or microh...

journal_title：Oecologia

authors： Wolff JO

更新日期：1996-11-01 00:00:00

abstract：:Interspecific interactions can vary within and among populations and geographic locations. This variation can subsequently influence the evolution and coevolution of species interactions. We investigated population and geographic variation in traits important to pollinating seed-consuming interactions between the seni...

journal_title：Oecologia

authors： Holland JN,Fleming TH

更新日期：1999-11-01 00:00:00

abstract：:Leaves of birch (Betula pendula Roth) and sycamore (Acer pseudoplatanus L.) were initiated and grown either in a simulated shadelight (80 μmol m-2 s-1, R/FR ratio 0.28)/dark photoenvironment or a white light (250 μmol m-2 s-1, R/FR>1)/dark photoenvironment. Until the leaves were more than 50% expanded, growth rates (m...

journal_title：Oecologia

authors： Taylor G,Davies WJ

更新日期：1986-07-01 00:00:00

abstract：:Ecological stoichiometry has advanced food web ecology by emphasising the importance of food quality over food quantity for herbivores. Here, we focus on the effects of abiotic factors such as nutrients and light (known to influence food quality) on grazer growth rates. As model organism we used the mudsnail Potamopyr...

journal_title：Oecologia

authors： Liess A,Lange K

更新日期：2011-09-01 00:00:00

abstract：:The carabid beetle Nebria brevicollis (F.), despite being macropterous, has a very low flight potential. Only a few percent of the beetles has functional flight muscles, flight motivation is low, and the period favourable for flight is short. The inability to fly is caused mainly by arrested development of the flight ...

journal_title：Oecologia

authors： Nelemans MN

更新日期：1987-07-01 00:00:00