The effects of light and nitrogen on photosynthesis, leaf characteristics, and dry matter allocation in the chaparral shrub, Diplacus aurantiacus.

abstract：:We investigated the effect of increased N-supply on productivity and potential litter decay rates of Carex species, which are the dominant vascular plant species in peatlands in the Netherlands. We hypothesized that: (1) under conditions of N-limited plant growth, increased N-supply will lead to increased productivity...

journal_title：Oecologia

authors： Aerts R,van Logtestijn R,van Staalduinen M,Toet S

更新日期：1995-12-01 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：:Human disturbances to ecosystems have created challenges to populations worldwide, forcing them to respond phenotypically in ways that increase their fitness under current conditions. One approach to examining population responses to disturbance in species with complex life histories is to study species that exhibit s...

journal_title：Oecologia

authors： Hegg JC,Kennedy BP,Chittaro PM,Zabel RW

更新日期：2013-08-01 00:00:00

abstract：:Relationships between leaf traits and the gap dependence for regeneration, and ontogenetic changes therein, were investigated in juvenile and adult tropical rainforest tree species. The juveniles of the 17 species included in the study were grown in high light, similar to the exposed crowns of the adult trees. The tra...

journal_title：Oecologia

authors： Houter NC,Pons TL

更新日期：2012-05-01 00:00:00

abstract：:Canopy CO2 concentrations in a tropical rainforest in French Guiana were measured continuously for 5 days during the 1994 dry season and the 1995 wet season. Carbon dioxide concentrations ([CO2]) throughout the canopy (0.02-38 m) showed a distinct daily pattern, were well-stratified and decreased with increasing heigh...

journal_title：Oecologia

authors： Buchmann N,Guehl JM,Barigah TS,Ehleringer JR

更新日期：1997-03-01 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：:Branch sampling of branch diameter and fruit crop on 22 species of Barbadian trees and shrubs provided sufficient data to build regressions between plant size and fruit crop weight. Orchard plants bear much more fruit than wild, feral or garden plants of similar size, but this difference disappears in multiple regress...

journal_title：Oecologia

authors： Peters RH,Cloutier S,Dubé D,Evans A,Hastings P,Kaiser H,Kohn D,Sarwer-Foner B

更新日期：1988-01-01 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：: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：:Chemical cues that evoke anti-predator developmental changes have received considerable attention, but it is not known to what extent prey use information from the smell of predators and from cues released through digestion. We conducted an experiment to determine the importance of various types of cues for the adjust...

journal_title：Oecologia

authors： Hettyey A,Tóth Z,Thonhauser KE,Frommen JG,Penn DJ,Van Buskirk J

更新日期：2015-11-01 00:00:00

abstract：:A 9-year study of the structure of assemblages of fish on 20 coral patch reefs, based on 20 non-manipulative censuses, revealed a total of 141 species from 34 families, although 40 species accounted for over 95% of sightings of fish. The average patch reef was 8.5 m2 in surface area, and supported 125 fish of 20 speci...

journal_title：Oecologia

authors： Sale PF,Guy JA,Steel WJ

更新日期：1994-06-01 00:00:00

abstract：:We determined in the laboratory the feeding response of two populations of the generalist herbivorous snail Arianta arbustorum (Helicidae) towards the composite Adenostyles alliariae and towards various allelochemicals. These were: a pyrrolizidine alkaloid (PA) extract of Adenostyles leaves; senecionine (a PA present ...

journal_title：Oecologia

authors： Speiser B,Harmatha J,Rowell-Rahier M

更新日期：1992-11-01 00:00:00

abstract：:Humans are rapidly altering thermal landscapes, so a central challenge to organismal ecologists is to better understand the thermal niches of ectotherms. However, there is much disagreement over how we should go about this. Some ecologists assume that a statistical model of abundance as a function of habitat temperatu...

journal_title：Oecologia

authors： Stoffels RJ,Richardson AJ,Vogel MT,Coates SP,Müller WJ

更新日期：2016-01-01 00:00:00

abstract：:The ability to respond in a specific manner to different light conditions imposed by different species of grass is a major factor contributing to white clover persistence in pastures. Gaps in a pasture provide light with a higher red:far-red ratio (R:FR) and higher photosynthetic photon flux density (PPFD) than the li...

journal_title：Oecologia

authors： Marcuvitz S,Turkington R

更新日期：2000-10-01 00:00:00

abstract：:Identifying the drivers and evolutionary consequences of species interactions is a major goal of community ecology. Network-based analyses can provide mathematical tools to detect non-random patterns of interactions, and potentially help predicting the consequences of such patterns on evolutionary dynamics of symbioti...

journal_title：Oecologia

authors： Chagnon PL,Magain N,Miadlikowska J,Lutzoni F

更新日期：2018-07-01 00:00:00

abstract：:The amount of calcium in Eucalyptus diversicolor (karri) ecosystems is high in comparison with other eucalypt forest ecosystems in Australia. A large proportion of this calcium is present as crystalline Ca oxalate. Whewellite (CaC2O4·H2O) accumulates in leaf tissue of the over- and understorey species. Up to 70% of th...

journal_title：Oecologia

authors： O'Connell AM,Malajczuk N,Gailitis V

更新日期：1983-02-01 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：:Bay scallops (Argopecten irradians concentricus) are patchily distributed on two dominant spatial scales: (1) geographically restricted to highly saline marine lagoons, and (2) locally abundant within such lagoons only in relatively discrete beds of seagrass habitat. In the Cape Lookout lagoonal system of North Caroli...

journal_title：Oecologia

authors： Peterson CH,Fodrie JF,Summerson HC,Powers SP

更新日期：2001-11-01 00:00:00

abstract：:With the increasing imperative for societies to act to curb climate change by increasing carbon stores and sinks, it has become critical to understand how organic carbon is produced, released, transformed, transported, and sequestered within and across ecosystems. In freshwater and open-ocean systems, shredders play a...

journal_title：Oecologia

authors： Filbee-Dexter K,Pedersen MF,Fredriksen S,Norderhaug KM,Rinde E,Kristiansen T,Albretsen J,Wernberg T

更新日期：2020-01-01 00:00:00

abstract：:Transplants of white clover (Trifolium repens L.) were grown isolated from each other and in pairs placed at different distances apart. The paired plants developed asymmetrically and at the interface between paired clones both the density of nodes and of stolons appeared to reach ceiling values that were of the same o...

journal_title：Oecologia

authors： Solangaarachchi SM,Harper JL

更新日期：1989-02-01 00:00:00

abstract：:We examined under laboratory conditions the thermopreference of the migratory locust, Locusta migratoria migratorioides, following infection by the entomopathogenic fungus Metarhizium anisopliae var. acridum and its influence on mycosis. Infected locusts raised their body temperature more frequently than healthy consp...

journal_title：Oecologia

authors： Ouedraogo RM,Goettel MS,Brodeur J

更新日期：2004-01-01 00:00:00

abstract：:A three year study of Senecio keniodendron (Compositae), a giant rosette species of the alpine zone of Mt. Kenya, demonstrated that individuals which reproduce are more likely to die, and less likely to reproduce in the future if they do survive, than are vegetative individuals of the same size. However, if an individ...

journal_title：Oecologia

authors： Smith AP,Young TP

更新日期：1982-11-01 00:00:00

abstract：:The phytochemical action of Erica scoparia L. upon its environment was studied. The toxicity of biogenic heath products on red clover seedlings was demonstrated by biological tests. Ten phenolic hydrosoluble compounds were identified; p-Hydroxybenzoic, vanillic, syringic, caffeic, ferulic, p-coumaric, protocatechuic, ...

journal_title：Oecologia

authors： Ballester A,Albo JM,Vieitez E

更新日期：1977-03-01 00:00:00

abstract：:The Yellow-bellied Glider, Petaurus australis, was observed to feed sporadically but extensively on eucalypt sap. Gliders extracted sap by making incisions into the bark with their procumbent lower incisor teeth and licking the resulting exudate. Less than 1% of possible trees were incised for sap. Sap flow and sap-su...

journal_title：Oecologia

authors： Goldingay RL

更新日期：1987-08-01 00:00:00

abstract：:Seasonal measurements of microclimatic conditions were compared to seasonal indices of leaf structural components and plant water relations in Prosopis glandulosa var. torryana. P. glandulosa had two short periods of leaf production which resulted in two distinct even aged cohorts of leaves. The two leaf cohorts (summ...

journal_title：Oecologia

authors： Nilsen ET,Sharifi MR,Rundel PW,Virginia RA

更新日期：1986-04-01 00:00:00

abstract：:Although many studies now examine how multiple factors influence the dynamics of herbivore populations, few studies explicitly attempt to document where and when each is important and how they vary and interact. In fact, how temporal variation in top-down (natural enemies) and bottom-up (host plant resources) factors ...

journal_title：Oecologia

authors： Gratton C,Denno RF

更新日期：2003-03-01 00:00:00

abstract：:Agricultural land use is a leading cause of habitat degradation, leaving a legacy of ecological impacts long after agriculture has ceased. Yet the mechanisms for legacy effects, such as altered plant community composition, are not well understood. In particular, whether plant community recovery is limited by an inabil...

journal_title：Oecologia

authors： Barker CA,Turley NE,Orrock JL,Ledvina JA,Brudvig LA

更新日期：2019-04-01 00:00:00

abstract：:After having been hunted to near-extinction in the Pacific maritime fur trade, the sea otter population at Amchitka Island, Alaska increased from very low numbers in the early 1900s to near equilibrium density by the 1940s. The population persisted at or near equilibrium through the 1980s, but declined sharply in the ...

journal_title：Oecologia

authors： Watt J,Siniff DB,Estes JA

更新日期：2000-08-01 00:00:00

abstract：:A large number of herbaceous and woody plants from tropical woodland, savanna, and monsoon forest were analysed to determine the impact of environmental factors (nutrient and water availability, fire) and biological factors (microbial associations, systematics) on plant delta(15)N values. Foliar delta(15)N values of h...

journal_title：Oecologia

authors： Schmidt S,Stewart GR

更新日期：2003-03-01 00:00:00

abstract：:Warming-induced nutrient enrichment in the Arctic may lead to shifts in leaf-level physiological properties and processes with potential consequences for plant community dynamics and ecosystem function. To explore the physiological responses of Arctic tundra vegetation to increasing nutrient availability, we examined ...

journal_title：Oecologia

authors： Prager CM,Boelman NT,Eitel JUH,Gersony JT,Greaves HE,Heskel MA,Magney TS,Menge DNL,Naeem S,Shen C,Vierling LA,Griffin KL

更新日期：2020-03-01 00:00:00