Resurrection grasses in India.

abstract：:Weight losses from sweet chestnut and beech leaves, attributable to biotic and abiotic breakdown processes, leaching and microbial decomposition have been studied using tethered leaves and litter bags. The experimental sites were two adjacent areas of deciduous woodland. In one area (the Castanea site) a mor-like mode...

journal_title：Oecologia

authors： Anderson JM

更新日期：1973-09-01 00:00:00

abstract：:Dry lichen thalli were enclosed in gas exchange chambers and treated with an air stream of high relative humidity (96.5 to near 100%) until water potential equilibrium was reached with the surrounding air (i.e., no further increase of weight through water vapor uptake). They were then sprayed with liquid water. The tr...

journal_title：Oecologia

authors： Lange OL,Kilian E,Ziegler H

更新日期：1986-12-01 00:00:00

abstract：:Disturbance is now recognized as a key ecosystem process but few studies have examined its indirect effects on individuals in a population or its relationship to ecological dominance in a community. Using an ecologically dominant small mammal population in experimentally burned habitat as a model, I empirically tested...

journal_title：Oecologia

authors： Plavsic MJ

更新日期：2011-08-01 00:00:00

abstract：:The chaparral shrub Eriodictyon californicum produces a flavonoid leaf resin with a chemically similar composition to that previously reported for the sympatric shrub Diplacus aurantiacus. We determined the phenology, resin content, and nitrogen content of Eriodictyon leaves and the leaf area lost to herbivores. Nitro...

journal_title：Oecologia

authors： Johnson ND,Chu CC,Ehrlich PR,Mooney HA

更新日期：1984-03-01 00:00:00

abstract：:We modeled the dynamics of a metapopulation of the land snail Arianta arbustorum in north-eastern Switzerland to investigate the effect of population subdivision on the persistence of a land snail metapopulation and to analyze the interaction between spatial factors, population subdivision, and catastrophes. We develo...

journal_title：Oecologia

authors： Akçakaya HR,Baur B

更新日期：1996-03-01 00:00:00

abstract：:Sabal palmetto (Walt.) Lodd. ex Schultes (cabbage palm) is an arborescent palm common in many plant communities throughout Florida, U.S.A., and the Caribbean. Although its seedlings grow very slowly in forest understories, they survive damage and defoliation well, and the species may increase in dominance following di...

journal_title：Oecologia

authors： McPherson K,Williams K

更新日期：1998-12-01 00:00:00

abstract：:Principal and reduced major axes, and Bulmer's (1975) tests have been suggested as methods for detecting the presence of density dependence in a series of population censuses that are unsuitable for analysis by alternative means e.g. by k-factor analysis. These alternative methods are tested using census data, some of...

journal_title：Oecologia

authors： Gaston KJ,Lawton JH

更新日期：1987-12-01 00:00:00

abstract：:The photosynthetic responses of a range of trebouxioid lichens were investigated to determine whether variations in net assimilation rates shown by populations of the same species collected from different habitats could be correlated with adjustments in carbon-concentrating mechanism (CCM) activity. The activity of a ...

journal_title：Oecologia

authors： Smith EC,Griffiths H

更新日期：1998-01-01 00:00:00

abstract：:Temperature regulation and oxygen consumption were examined in two species of grasshoppers: Melanoplus sanguinipes from cold alpine tundra at elevation 3,800 m, and Trimerotropis pallidipennis from hot desert habitats at elevation 250 m. Both species utilized behavioral thermoregulation to keep body temperature (T b )...

journal_title：Oecologia

authors： Chappell MA

更新日期：1983-01-01 00:00:00

abstract：:Selection of sites for oviposition when the risk of predation by green frogs was variable studied in tandems of the damselfly Pyrrhosoma nymphula. In the absence of predators the number of tandems landing increased with the size of the oviposition site and with the number of pairs already present. Pairs approaching an...

journal_title：Oecologia

authors： Rehfeldt GE

更新日期：1990-12-01 00:00:00

abstract：:Many tropical regions show one distinct dry season. Often, this seasonality induces cambial dormancy of trees, particularly if these belong to deciduous species. This will often lead to the formation of annual rings. The aim of this study was to determine whether tree species in the Bolivian Amazon region form annual ...

journal_title：Oecologia

authors： Brienen RJ,Zuidema PA

更新日期：2005-11-01 00:00:00

abstract：:In the present study we investigated the economics of load transport in the grass-cutting ant Atta vollenweideri by focusing on the effects of load mass, width and length on individual transport rates. Both running speed of foragers and the amount of material transported a given distance per unit time, i.e. gross mate...

journal_title：Oecologia

authors： Röschard J,Roces F

更新日期：2002-04-01 00:00:00

abstract：:The relationship between ichthyotoxicity and predation-related defensive functional morphology was examined in alcyonacean soft corals of the central and northern regions of the Great Barrier Reef (GBR), Australia. Approximately 170 specimens were assessed encompassing a number of genera within three families: 1) the ...

journal_title：Oecologia

authors： Sammarco PW,La Barre S,Coll JC

更新日期：1987-11-01 00:00:00

abstract：:Climate change is affecting both the volume and distribution of precipitation, which in turn is expected to affect the growth and reproduction of plant populations. The near ubiquity of local adaptation suggests that adaptive differentiation may have important consequences for how populations are affected by and respo...

journal_title：Oecologia

authors： Gorton AJ,Tiffin P,Moeller DA

更新日期：2019-08-01 00:00:00

abstract：:The insect fauna of 80 day-old plots of corn and sweet potato monocultures and dicultures in Costa Rica were compared using sweep sampling. Six hundred sweeps were taken in each of the three habitats. There were 15% more total species in the diculture than either monoculture but approximately the same total number of ...

journal_title：Oecologia

authors： Risch SJ

更新日期：1979-09-01 00:00:00

abstract：:Spatial distribution in the two collembolan species Tomocerus minor and Orchesella cincta is greatly influenced by the distribution of the environmental factors water and food. T. minor is totally restricted in distribution to water-saturated places, where it forms spaced-out aggregations. O. cincta assembles in water...

journal_title：Oecologia

authors： Verhoef HA,Nagelkerke CJ

更新日期：1977-01-01 00:00:00

abstract：:While morphological differences such as tongue length are often featured as drivers of pollinator floral preferences, differences in chemical detection and tolerance to secondary compounds may also play a role. We sought to better understand the role of secondary compounds in floral preference by examining visitation ...

journal_title：Oecologia

authors： Villalona E,Ezray BD,Laveaga E,Agrawal AA,Ali JG,Hines HM

更新日期：2020-07-01 00:00:00

abstract：:Seasonal and nutritionally induced changes of whole body protein metabolism have been studied in 45 to 57 mm shell-length Mytilus edulis from Whitsand Bay, southwest England. The subtraction of measured net protein balances from coincident rates of protein synthesis, determined in vivo by supplying 15N-labelled alga a...

journal_title：Oecologia

authors： Hawkins AJ

更新日期：1985-04-01 00:00:00

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：:Breeding birds were censused along four elevational gradients in the Adirondack Mountains, New York, and the Green Mountains, Vermont. The bird communities of the four gradients were basically similar in species composition, richness and amplitude patterns. Three measures of species diversity decreased with increasing...

journal_title：Oecologia

authors： Able KP,Noon BR

更新日期：1976-09-01 00:00:00

abstract：:Evaluation of size-dependent variation in statoblast numbers in Plumatella repens indicates that this freshwater bryozoan employs divergent strategies in dispersing its asexual offspring in space and time. While the numbers of sessoblasts which were cemented to local substrates did not vary per unit ramet size, number...

journal_title：Oecologia

authors： Karlson RH

更新日期：1992-03-01 00:00:00

abstract：:Correlations between environmental parameters and the distribution of four chromosomal taxa in the acridine grasshopperCaledia captiva (F.) have been analyzed. A bioclimate prediction system (BIOCLIM) was used as a model to determine their bioclimatic envelopes and to predict their probable geographic distributions, b...

journal_title：Oecologia

authors： Kohlmann B,Nix H,Shaw DD

更新日期：1988-05-01 00:00:00

abstract：:The climatic control of productivity for two populations of the lichen Cetraria cucullata (Bell.) Ach. growing in the arctic tundra of northern Alaska (70°28'N, 157°23'W) was examined. Respiratory losses of carbon vary with tissue temperature, tissue water content, and time since wetting. Potential net photosynthetic ...

journal_title：Oecologia

authors： Lechowicz MJ

更新日期：1981-08-01 00:00:00

abstract：:Despite many studies highlighting the widespread occurrence and effects of resource movement between ecosystems, comparatively little is known about how anthropogenic alterations to ecosystems affect the strength, direction and importance of such fluxes. Hydrological regime and riparian land use cause well-documented ...

journal_title：Oecologia

authors： Greenwood MJ,Booker DJ

更新日期：2016-02-01 00:00:00

abstract：:CO2 exchange characteristics and the activity of the carboxylating enzymes phosphoenolpyruvate carboxylase (PEP-C, E.C. 4.1.1.31) and ribulose 1,5-bisphosphate carboxylase (RuBP-C, E.C. 4.1.1.39) during one year in the greenhouse and at two levels of light and temperature in growth chambers were determined in the C3-C...

journal_title：Oecologia

authors： Fladung M,Hesselbach J

更新日期：1989-05-01 00:00:00

abstract：:Seed predation and seed dispersal can have strong effects on early life history stages of plants. These processes have often been studied as individual effects, but the degree to which their relative importance co-varies with seed predator abundance and how this influences seed germination rates is poorly understood. ...

journal_title：Oecologia

authors： Klinger R,Rejmánek M

更新日期：2010-04-01 00:00:00

abstract：:The demographic variability and life history differentiation of two closely related shrubs (Atriplex canescens and A. acanthocarpa) were investigated in the Chihuahuan Desert, and the results were interpreted in the context of theories of coexistence in fluctuating environments. Demographic information was recorded du...

journal_title：Oecologia

authors： Verhulst J,Montaña C,Mandujano MC,Franco M

更新日期：2008-05-01 00:00:00

abstract：: Habitat fragmentation is becoming increasingly common, yet, the effect of habitat spatial structure on population dynamics remains undetermined for most species. Populations of a single species found in fragmented and nonfragmented habitat present a rare opportunity to examine the effect of habitat spatial structure ...

journal_title：Oecologia

authors： Peacock MM,Smith AT

更新日期：1997-11-01 00:00:00

abstract：:In the stream-dwelling isopod Lirceus fontinalis, males and females engage in a precopulatory mate guarding phase prior to mating. We examined the energetic costs of mate guarding behavior in males by separately assaying glycogen and lipid content at different time increments following mating. We found that males that...

journal_title：Oecologia

authors： Sparkes TC,Keogh DP,Pary RA

更新日期：1996-04-01 00:00:00

abstract：:Four colonies of the desert leaf-cutter ant Acromyrmex versicolor versicolor (Pergande) located 30 miles N.E. of Tempe, Arizona were observed over a 7 month period. The ants utilized trails in foraging, a characteristic of higher attines, as well as foraging singly, a typical pattern among the more primitive gardeners...

journal_title：Oecologia

authors： Gamboa GJ

更新日期：1975-03-01 00:00:00