Carbon isotope discrimination, water-use efficiency, growth, and mortality in a natural shrub population.

abstract：:Effects of temperature changes on phytoplankton communities seem to be highly context-specific, but few studies have analyzed whether this context specificity depends on differences in the abiotic conditions or in species composition between studies. We present an experiment that allows disentangling the contribution ...

journal_title：Oecologia

authors： Striebel M,Schabhüttl S,Hodapp D,Hingsamer P,Hillebrand H

更新日期：2016-11-01 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：:Models incorporating the energetics of individual daphnids (Cladocera) have been developed to predict the effect of environmental variables, particularly food availability, on population dynamics. One of them, that of Kooijman (1986), assumes that all assimilated energy enters a storage compartment prior to use in pro...

journal_title：Oecologia

authors： Bradley MC,Perrin N,Calow P

更新日期：1991-05-01 00:00:00

abstract：:We assessed the ecomorphological structure of a guild of rhinolophoid bats in a Malaysian rainforest first described by Heller and von Helversen (1989). These authors found that the distribution of echolocation call frequencies used by 12 syntopic species was more even than expected from allometric relationships or in...

journal_title：Oecologia

authors： Kingston T,Jones G,Zubaid A,Kunz TH

更新日期：2000-08-01 00:00:00

abstract：:Developmental periods are integral components of life history strategies that can have important fitness consequences and vary enormously among organisms. However, the selection pressures and mechanisms causing variation in length of developmental periods are poorly understood. Particularly puzzling are prolonged deve...

journal_title：Oecologia

authors： Palacios MG,Martin TE

更新日期：2006-01-01 00:00:00

abstract：:The effects of notonectid-induced crests on growth and reproduction, and resource allocation to crest construction, moult losses and eggs of Daphnia carinata were measured. An attempt was made to elucidate the mechanisms of physiological costs of crest induction for this species. The crested morph of d. carinata reach...

journal_title：Oecologia

authors： Barry MJ

更新日期：1994-03-01 00:00:00

abstract：:Indications of global climate change and associated unusual temperature fluctuations have become increasingly obvious over the past few decades. Consequently, the relevance of temperature increases for ecological communities and for whole ecosystems is one of the major challenges of current ecological research. One ap...

journal_title：Oecologia

authors： Norf H,Arndt H,Weitere M

更新日期：2007-03-01 00:00:00

abstract：:For many amphibians, high temperatures and limited precipitation are crucial habitat characteristics that limit species ranges and modulate life-history characteristics. Although knowledge of the ability of amphibians to cope with such environmental harshness is particularly relevant in the light of ongoing environmen...

journal_title：Oecologia

authors： Reniers J,Brendonck L,Roberts JD,Verlinden W,Vanschoenwinkel B

更新日期：2015-07-01 00:00:00

abstract：:Vein placement has been hypothesised to control leaf hydraulic properties, but the ecophysiological significance of variation in vein placement in the angiosperms has remained poorly understood. The highly diverse Neotropical Bromeliaceae offers an excellent system for exploring understudied relationships between leaf...

journal_title：Oecologia

authors： Males J

更新日期：2017-11-01 00:00:00

abstract：:To evaluate the general extent to which sex-related differences in palatability occur in boreal dioecious woody plants, males and females of five dioecious woody plant species were presented to free-ranging mountain hares (Lepus timidus) during winter. Hares strongly preferred branches from male plants when feeding on...

journal_title：Oecologia

authors： Hjältén J

更新日期：1992-02-01 00:00:00

abstract：:Data are presented on the influence of Athous subfuscus larvae (Coleoptera, Elateridae) on the microbial carbon cycle in the biotically most active horizons of three contrasting beech forest soils: the Ah horizon of a mull soil on limestone (Göttinger Wald, FRG), the F/H horizon of a moder soil on new red sandstone (S...

journal_title：Oecologia

authors： Wolters V

更新日期：1989-08-01 00:00:00

abstract：:Arafura filesnakes (Acrochordus arafurae) are large (up to 2.5 m, 5 kg) aquatic nonvenomous snakes that feed entirely on fishes. A 10-year field study in the Australian wet-dry tropics revealed strong correlations between rainfall patterns, fish abundance, and snake population dynamics. All of these characteristics sh...

journal_title：Oecologia

authors： Madsen T,Shine R

更新日期：2000-08-01 00:00:00

abstract：:Experiments are described which demonstrate that the seeds of the desert species Blepharis persica are capable of germinating within 50 min of being exposed to moisture. Their radicles reach a length of about 49 mm within the first 24 h from wetting. The seeds can germinate in light and dark at temperatures ranging fr...

journal_title：Oecologia

authors： Gutterman Y

更新日期：1972-06-01 00:00:00

abstract：:Growth and morphology of seedlings of ten tropical rain forest species were studied at Los Tuxtlas, Mexico. Seedlings were grown in three environmental conditions: the shaded forest understorey (FU, receiving 0.9-2.3% of the daily photosynthetic photon flux, PF, above the canopy), a small canopy gap of approx. 50 m2 (...

journal_title：Oecologia

authors： Popma J,Bongers F

更新日期：1988-05-01 00:00:00

abstract：:Understanding how communities respond to extreme climatic events is important for predicting the impact of climate change on biodiversity. The plant vigor and stress hypotheses provide a theoretical framework for understanding how arthropods respond to stress, but are rarely tested at the community level. Following a ...

journal_title：Oecologia

authors： Stone AC,Gehring CA,Whitham TG

更新日期：2010-11-01 00:00:00

abstract：:The sea urchin, Lytechinus variegatus, has been estimated to consume between 50 and 90% of annual net aboveground production in selected turtlegrass (Thalassia testudinum) meadows in the eastern Gulf of Mexico. Nevertheless, turtlegrass persists where sea urchin grazing is intense. We hypothesized that turtlegrass pro...

journal_title：Oecologia

authors： Valentine JF,Heck KL,Busby J Jr,Webb D

更新日期：1997-10-01 00:00:00

abstract：:Global changes interact with plant invasions by differentially impacting native and invasive species. For example, invasive plants often benefit from eutrophication to a greater degree than native plants. While this is well-documented, a broad, trait-based explanation for this phenomenon is lacking. Recent research sh...

journal_title：Oecologia

authors： Harvey JT,Leffler AJ

更新日期：2020-08-01 00:00:00

abstract：:Organisms normally grow at a sub-maximal rate. After experiencing a period of arrested growth, individuals often show compensatory growth responses by modifying their life-history, behaviour and physiology. However, the strength of compensatory responses may vary across broad geographic scales as populations differ in...

journal_title：Oecologia

authors： Orizaola G,Dahl E,Laurila A

更新日期：2014-01-01 00:00:00

abstract：:Geographic variation in species interactions can have major effects on species distributions and can be important for the resistance of resident communities to invasive species. We tested the hypothesis that coexistence or replacement of a resident North American mosquito Aedes aegypti with the invasive Aedes albopict...

journal_title：Oecologia

authors： Leisnham PT,Juliano SA

更新日期：2010-09-01 00:00:00

abstract：:A widely cited benefit of predator diversity is greater suppression of insect herbivores, with corresponding increases in plant biomass. In the context of a vector-borne pathogen system, predator species richness may also influence plant disease risk via the direct effects of predators on the abundance and behavior of...

journal_title：Oecologia

authors： Long EY,Finke DL

更新日期：2015-04-01 00:00:00

abstract：:Most fish species are regularly subjected to periods of starvation during which a reduction of energy turnover might be favourable for the animal. This reduction of energy flux may be achieved by changes in thermal behaviour and/or swimming activity. We investigated such behavioural changes during starvation and subse...

journal_title：Oecologia

authors： van Dijk P,Staaks G,Hardewig I

更新日期：2002-02-01 00:00:00

abstract：:Competition between larvae of two anuran species (Bufo bufo and B. calamita) was investigated under field conditions likely to disfavour cell-mediated interference mechanisms. The experiment used triplicated cage treatments in an unshaded farm pond, a poor habitat for the unicellular pathogen Anurofeca richardsi impli...

journal_title：Oecologia

authors： Bardsley L,Beebee TJ

更新日期：2000-07-01 00:00:00

abstract：:A climate room is described for precise regulation of temperature and humidity. Humidity is regulated by regulation of the dew-point temperature of the air. The ranges for both dew-point and air temperature are from 2°C to 45°C. The precision of regulation for the temperature is ±0.05°C, for the dew-point temperature ...

journal_title：Oecologia

authors： Bruin MK,Brandt DC,Körner FJ

更新日期：1976-12-01 00:00:00

abstract：:Replacement of a native species by a nonnative can have strong effects on ecosystem function, such as altering nutrient cycling or disturbance frequency. Replacements may cause shifts in ecosystem function because nonnatives establish at different biomass, or because they differ from native species in traits like fora...

journal_title：Oecologia

authors： Benjamin JR,Fausch KD,Baxter CV

更新日期：2011-10-01 00:00:00

abstract：:Energy budgets explain how organisms allocate energetic intake to accomplish essential processes. A likely life history trade-off occurs between growth and immune response in juvenile organisms, where growth is important to avoid predation or obtain larger prey and immune response is essential to survival in the prese...

journal_title：Oecologia

authors： Korfel CA,Chamberlain JD,Gifford ME

更新日期：2015-10-01 00:00:00

abstract：:At constant cladode temperature the stomatal resistance of O. inermis increased when the cladode-air vapor pressure difference was increased and stomatal resistance decreased when the cladode-air vapor pressure difference was lowered. Net CO2 fixation in the dark was very responsive to these humidity dependent changes...

journal_title：Oecologia

authors： Osmond CB,Ludlow MM,Davis R,Cowan IR,Powles SB,Winter K

更新日期：1979-07-01 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 effects of competitive suppression by vines on the non-vine plant community have received little attention in temperate habitats. This study investigated the impact vines have on their herbaceous hosts in a wetland community at two soil fertility levels. Plots in an oligohaline marsh were treated in a 2 × 2 factor...

journal_title：Oecologia

authors： Gough L,Grace JB

更新日期：1997-10-01 00:00:00

abstract：:Understanding community dynamics during early life stages of trees is critical for the prediction of future species composition. In Mediterranean forests drought is a major constraint for regeneration, but likely not the only factor determining the observed spatial patterns. We carried out a sowing experiment aimed at...

journal_title：Oecologia

authors： Granda E,Escudero A,Valladares F

更新日期：2014-12-01 00:00:00

abstract：:Reduced rations of Calotropis gigantea produced a number of negative effects on the grasshopper Poecilocerus pictus such as heavy mortality (42% at 25% ration as aginst 11% at 100% ration), extension of hopper period (from 75 days about 113 days) and increase in the number of instars (from 6-7). At the tested 100, 50 ...

journal_title：Oecologia

authors： Muthukrishnan J,Delvi MR

更新日期：1974-09-01 00:00:00