Bromeliads affect the interactions and composition of invertebrates on their support tree.

abstract：:We examined the functional response and foraging behavior of young moose (Alces alces) and white-tailed deer (Odocoileus virginianus) relative to animal size and the size and distribution of browse patches. The animals were offered one, three, or nine stems of dormant red maple (Acer rubrum) in hand-assembled patches ...

journal_title：Oecologia

authors： Shipley LA,Spalinger DE

更新日期：1995-09-01 00:00:00

abstract：:The abundance and composition of the submerged macrophyte seed bank in the Doñana marsh (southwestern Spain) was evaluated to assess its relationship with the overlying vegetation. The results obtained demonstrate the existence of a dense seed-bank, both in terms of the number of seeds and their biomass, which represe...

journal_title：Oecologia

authors： Grillas P,Garcia-Murillo P,Geertz-Hansen O,Marbá N,Montes C,Duarte CM,Tan Ham L,Grossmann A

更新日期：1993-05-01 00:00:00

abstract：:Disturbances reduce the biota in stream ecosystems, and leave biological legacies, including remnant species, which potentially influence post-disturbance community development but are poorly understood. We investigated whether three remnant species, the snail Radix peregra, the mayfly Serratella ignita and the freshw...

journal_title：Oecologia

authors： Ledger ME,Harris RM,Milner AM,Armitage PD

更新日期：2006-07-01 00:00:00

abstract：:Among 13 tropical tree species on Barro Colorado Island, species with high seedling mortality rates during the first year in shade had higher reltive growth rates (RGR) from germination to 2 months in both sun (23% full sun) and shade [2%, with and without lowered red: far red (R:FR) ratio] than shade tolerant species...

journal_title：Oecologia

authors： Kitajima K

更新日期：1994-08-01 00:00:00

abstract：:It is shown that litter of flowering plants of Cirsium vulgare inhibits the growth of seedlings of the same species at concentrations as low as 0.4% (g litter/g soil). The inhibition of growth cannot be fully compensated by adding nutrients, which indicates that autotoxicity may occur. It must be concluded, however, f...

journal_title：Oecologia

authors： de Jong TJ,Klinkhamer PG

更新日期：1985-01-01 00:00:00

abstract：:A laboratory experiment was conducted to determine whether the sea star Asterias forbesi and the naticid gastropod Euspira heros feed on surfclams, Spisula solidissima, in an additive or non-additive manner. Predators were allowed to feed on clams with conspecifics and in the presence of the other predator species. Cl...

journal_title：Oecologia

authors： Weissberger EJ

更新日期：1999-05-01 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：:While trying to achieve their nutritional requirements, foraging herbivores face the costs of plant defenses, such as toxins. Teasing apart the costs and benefits of various chemical constituents in plants is difficult because their chemical defenses and nutrient concentrations often co-vary. We used an approach deriv...

journal_title：Oecologia

authors： Bedoya-Pérez MA,Issa DD,Banks PB,McArthur C

更新日期：2014-08-01 00:00:00

abstract：:Some individual plants of the mustard Brassica nigra in lowland California kill eggs of the Crucifer-specialist herbivores Pieris rapae and P. napi by producing a necrotic zone at the base of the egg, thereby apparently desicating it. This is a typical hypersensitivity reaction, but to an atypical stimulus. The eggs c...

journal_title：Oecologia

authors： Shapiro AM,DeVay JE

更新日期：1987-03-01 00:00:00

abstract：:We investigated seasonality of gender differences in the patterns of flea infestation in nine rodent species to test if sex-biased parasitism in terms of mean abundance, species richness, prevalence and the level of aggregation (a) varies among hosts and between seasons, and (b) is linked to sexual size dimorphism. Se...

journal_title：Oecologia

authors： Krasnov BR,Morand S,Hawlena H,Khokhlova IS,Shenbrot GI

更新日期：2005-12-01 00:00:00

abstract：:Analyses of carbon-assimilation patterns in response to intercellular CO2 concentrations, and the photosynthetic water-and nitrogen-use efficiencies, were conducted for a C3, a C4, and three C3-C4 species in the genus Flaveria in order to determine some of the advantages and disadvantages of C3-C4 intermediate photosy...

journal_title：Oecologia

authors： Monson RK

更新日期：1989-08-01 00:00:00

abstract：:Interrelationships between morphology, microhabitat, water relations, and photosynthesis of a xeric fern, Notholaena parryi D.C. Eat. (Pteridaceae), were examined in the western Colorado desert. In its typical microhabitat rock outcroppings protected N. parryi from direct sunlight and moderated the diurnal variations ...

journal_title：Oecologia

authors： Nobel PS

更新日期：1978-01-01 00:00:00

abstract：:Plant species and functionally related species groups from arid and semi-arid habitats vary in their capacity to take up summer precipitation, acquire nitrogen quickly after summer precipitation, and subsequently respond with ecophysiological changes (e.g. water and nitrogen relations, gas exchange). For species that ...

journal_title：Oecologia

authors： Snyder KA,Donovan LA,James JJ,Tiller RL,Richards JH

更新日期：2004-10-01 00:00:00

abstract：:Plants of white clover Trifolium repens were grown under the canopies of three grass species, Lolium perenne, Agrostis tenuis and Holcus lanatus, and under simulated canopies of black polythene and controls were exposed to unfiltered natural radiation. The canopies were adjusted so that they transmitted equal intensit...

journal_title：Oecologia

authors： Thompson L,Harper JL

更新日期：1988-04-01 00:00:00

abstract：:Several studies published over the last years suggest that the ability of many species to cope with global change will be closely related to the current amount of plasticity for fitness-related traits. Thus, disentangling general patterns in phenotypic flexibility, which could be then included in models aimed to predi...

journal_title：Oecologia

authors： Aguilar-Kirigin ÁJ,Naya DE

更新日期：2013-11-01 00:00:00

abstract：:Generalist parasites may disproportionately use certain hosts because of different benefits associated with each host species. I measured the growth rate of the marine snail Trichotropis cancellata, a facultative kleptoparasite that can suspension feed and steal food, on different hosts to determine the relative nutri...

journal_title：Oecologia

authors： Iyengar EV

更新日期：2004-03-01 00:00:00

abstract：:Shoot herbivory by the sapling specialist shoot-borer Cromarcha stroudagnesia (Lepidoptera, Pyralidae, Chrysauginae) is shown to have large direct and indirect effects on the rates of height increment and mortality of saplings of its host tree, Tabebuia ochracea (Bignoniaceae), in the secondary successional tropical d...

journal_title：Oecologia

authors： Sullivan JJ

更新日期：2003-06-01 00:00:00

abstract：:In fasting Pisidium amnicum and Sphaerium corneum, regular periods of behavioural and metabolic quiescence were shown to occur in the normoxic, constant environment of the flow-through chamber of a heat-flow microcalorimeter. The metabolic rate was suppressed to 7.5% of normal at 10° C and to 8.5-9.7% at 20° C for per...

journal_title：Oecologia

authors： Holopainen IJ,Penttinen OP

更新日期：1993-03-01 00:00:00

abstract：:The ecological and evolutionary processes that interact to shape community structure are poorly studied in the largest environment on earth, the deep sea. Phylogenetic data and morphological traits of octocorals were coupled with environmental factors to test hypotheses of community assembly in the deep (250-2500 m) G...

journal_title：Oecologia

authors： Quattrini AM,Gómez CE,Cordes EE

更新日期：2017-01-01 00:00:00

abstract：:Canada mayflower (Maianthemum canadense Desf.), a rhizomatous, perennial herb, was the subject of a 2-year field experiment that examined two factors potentially affecting fruit and seed production: pollen addition and ramet isolation. Ramets were either open pollinated or overpollinated by hand to supplement natural ...

journal_title：Oecologia

authors： Ganger MT

更新日期：1997-04-01 00:00:00

abstract：:Leslie matrices are used to compare theoretical populations of gregarious and solitarious Desert Locusts, Schistocerca gregaria (Forsk.). Despite their lower fecundity, the synchrony and faster maturation of gregarious populations permit them to have much faster rates of increase than solitarious populations. When rea...

journal_title：Oecologia

authors： Cheke RA

更新日期：1978-01-01 00:00:00

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：:Understanding the mechanisms by which populations are regulated is critical for predicting the effects of large-scale perturbations. While discrete mortality events provide clear evidence of direct impacts, indirect pathways are more difficult to assess but may play important roles in population and ecosystem dynamics...

journal_title：Oecologia

authors： Schmidt JH,Putera J,Wilson TL

更新日期：2020-02-01 00:00:00

abstract：:Recently, community ecology has emphasized the multi-facetted aspects of biological diversity by linking species traits and the environment. Here, we explored environmental correlates of taxonomically-based and traits-based compositional distances using a comprehensive data set of diatom and macroinvertebrate communit...

journal_title：Oecologia

authors： Perez Rocha M,Bini LM,Grönroos M,Hjort J,Lindholm M,Karjalainen SM,Tolonen KE,Heino J

更新日期：2019-12-01 00:00:00

abstract：:Dusky-footed woodrats (Neotoma fuscipes) and desert woodrats (N. lepida) experience pronounced seasonal variations in the aridity of their habitats. The effects of seasonal aridity upon the water conserving abilities of these species were assessed through measurements of water conserving abilities and kidney structure...

journal_title：Oecologia

authors： Stallone JN

更新日期：1979-01-01 00:00:00

abstract：:We have investigated interspecific interactions between larvae of the 3 native British anurans, Rana temporaria, Bufo bufo and B. calamita in the field and in the laboratory. Over a 3 year period, predation of B. calamita spawn by the two competitively superior species accounted for only 0.3-3.0% of the total deposite...

journal_title：Oecologia

authors： Banks B,Beebee TJ

更新日期：1987-07-01 00:00:00

abstract：:The Alexander Archipelago wolf (Canis lupus ligoni) is unique to southeast Alaska, occurring on islands south of Frederick Sound and along the mainland between Dixon Entrance and Yakutat Bay. Sitka black-tailed deer (Odocoileus hemionus sitkensis) are an important prey species for wolves across the southern part of th...

journal_title：Oecologia

authors： Szepanski MM,Ben-David M,Van Ballenberghe V

更新日期：1999-08-01 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：:Lack 18:125-128 (1967) proposed that clutch size in precocial species was regulated by nutrients available to females during breeding. Drent and Daan 68:225-252 (1980) proposed the individual optimization hypothesis, whereby individual state determines the optimal combination of breeding date and clutch size. Neither ...

journal_title：Oecologia

authors： Sedinger JS,VanDellen AW,Leach AG,Riecke TV

更新日期：2017-02-01 00:00:00

abstract：:It has been suggested that a heterogeneous environment enhances species richness and allows for the coexistence of species. However, there is increasing evidence that environmental heterogeneity can have no effect or even a negative effect on plant species richness and plant coexistence at a local scale. We examined w...

journal_title：Oecologia

authors： Douda J,Doudová-Kochánková J,Boublík K,Drašnarová A

更新日期：2012-06-01 00:00:00