Species-specific allometric scaling under self-thinning: evidence from long-term plots in forest stands.

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：:It has commonly been assumed that pollinator energy intake increases with flowering plant density, and visitation to flowers should therefore be higher in denser stands. I therefore investigated the relationship between flight distance and flight time for bumblebees and butterflies foraging on Senecio integerrimus and...

journal_title：Oecologia

authors： Schmitt J

更新日期：1983-10-01 00:00:00

abstract：:Variation in body size (weight) is examined across the order Carnivora in relation to taxonomy (phylogeny), latitude, habitat, zonation, activity cycle, diet, prey size, and prey diversity. Significant differences in body weight are observed with respect to family membership. Some of these differences may be explained...

journal_title：Oecologia

authors： Gittleman JL

更新日期：1985-12-01 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：:Two physiological races of the carabid beetle, Pterostichus nigrita, are compared. The larvae from the northern Scandinavian population (polar circle) develop faster in all temperature regimens, have a reduced mortality in lower temperatures and an increased growth rate in high temperatures compared with the central E...

journal_title：Oecologia

authors： Ferenz HJ

更新日期：1975-03-01 00:00:00

abstract：:Soil fauna can influence soil processes through interactions with the microbial community. Due to the complexity of the functional roles of fauna and their effects on microbes, little consensus has been reached on the extent to which soil fauna can regulate microbial activities. We quantified soil microbial biomass an...

journal_title：Oecologia

authors： González G,Ley RE,Schmidt SK,Zou X,Seastedt TR

更新日期：2001-08-01 00:00:00

abstract：:1. There is a well-defined time sequence in the oxygen consumption of Porcellio scaber. A maximal rate (the 'active rate') is obtained in woodlice subjected to the maximal disturbance of food presentation, handling and light. After initial exploratory activity has ceased, the oxygen consumption declines through a seri...

journal_title：Oecologia

authors： Newell RC,Wieser W,Pye VI

更新日期：1974-03-01 00:00:00

abstract：:Plants derived from ten representative Limnanthes alba populations in Northern California, grown in a common environment, showed significant among-population genetic variation of certain floral and life history characters. Variation of these two sets of characters also correlated with the geographic distribution of po...

journal_title：Oecologia

authors： Ritland K,Jain S

更新日期：1984-08-01 00:00:00

abstract：:Inoculation with arbuscular mycorrhizal (AM) fungi is known to increase the species diversity of plant communities. One mechanism that can increase the likelihood of species co-existence, and thus species diversity, is a trade-off between competitive ability and the magnitude of plant growth response to AM fungal inoc...

journal_title：Oecologia

authors： Stanescu S,Maherali H

更新日期：2017-02-01 00:00:00

abstract：:Among species, photosynthetic capacity (Amax) is usually related to leaf nitrogen content (N), but variation in the species-specific relationship is not well understood. To address this issue, we studied Amax-N relationships in 23 species in adjacent Amazonian communities differentially limited by nitrogen (N), phosph...

journal_title：Oecologia

authors： Reich PB,Walters MB,Ellsworth DS,Uhl C

更新日期：1994-02-01 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：: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：:Determining how environmental conditions interact with individual intrinsic properties is important for unravelling the underlying mechanisms that drive variation in reproductive decisions among migratory species. We investigated the influence of sea ice conditions and body condition at arrival on the breeding propens...

journal_title：Oecologia

authors： Jean-Gagnon F,Legagneux P,Gilchrist G,Bélanger S,Love OP,Bêty J

更新日期：2018-01-01 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：:Not all hosts, communities or environments are equally hospitable for parasites. Direct and indirect interactions between parasites and their predators, competitors and the environment can influence variability in host exposure, susceptibility and subsequent infection, and these influences may vary across spatial scal...

journal_title：Oecologia

authors： Gehman AM,Grabowski JH,Hughes AR,Kimbro DL,Piehler MF,Byers JE

更新日期：2017-01-01 00:00:00

abstract：:A stage-by-stage protocol for identifying simple or biased lottery, or non-lottery, patterns of seedling recruitment is outlined. For a simple (weighted) lottery to apply, the proportion of total individuals accounted for by one species at one stage of recruitment plotted against the proportion accounted for at a prev...

journal_title：Oecologia

authors： Lamont BB,Witkowski ET

更新日期：1995-03-01 00:00:00

abstract：:Common ragweed (Ambrosia artemisiifolia) is an abundant weed in its native North America, despite supporting a wide range of natural enemies. Here, we tested whether these enemies have significant impacts on the performance of this plant in its native range. We excluded enemies from the three principal life-history st...

journal_title：Oecologia

authors： MacDonald AA,Kotanen PM

更新日期：2010-04-01 00:00:00

abstract：:Factors influencing the consumption of algae and the rate of feeding by the larvae of Heterotrissocladius changi Saether and Polypedilum nebeculosum (Meigen) (Chironomidae: Diptera) were determined from collections made between July 1975 and May 1977 in Yellowknife Bay, situated in the Canadian subarctic. Although bot...

journal_title：Oecologia

authors： Moore JW

更新日期：1979-01-01 00:00:00

abstract：:This study uses short-term assays and long-term transplant experiments to document the potential importance of fish predation and herbivory to the distribution and abundance of reef-building corals in a Caribbean back-reef system. Experimental manipulations of fish access reveal that the zonal patterns of the two reef...

journal_title：Oecologia

authors： Littler MM,Taylor PR,Littler DS

更新日期：1989-08-01 00:00:00

abstract：:Why can alien species succeed in environments to which they have had no opportunity to adapt and even become more abundant than many native species? Ecological theory suggests two main possible answers for this paradox: competitive superiority of exotic species over native species and opportunistic use of ecological o...

journal_title：Oecologia

authors： Sol D,Bartomeus I,Griffin AS

更新日期：2012-06-01 00:00:00

abstract：:The ostracod Cyprideis torosa Jones, 1850 is a dominant species in the meiofauna of brackish water habitats. Its production in the field over a five-year period has been calculated using two production models. The first model uses the age-distribution of shells preserved in the sediment to assess the stage-specific mo...

journal_title：Oecologia

authors： Herman PM,Heip C,Vranken G

更新日期：1983-06-01 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：:Flight of male and female Mexican bean beetle adults was examined in laboratory tests. The experimental design made it possible to examine flight behavior not only with respect to different types of hosts (young vs senescent common bean foliage) but also with respect to effects due to their utilization during particul...

journal_title：Oecologia

authors： Saks ME,Rankin MA,Stinner RE

更新日期：1988-03-01 00:00:00

abstract：:During the last 20 years, ecologists discovered the importance of including spatial relationships in models of species distributions. Among the latest developments in modelling how species are spatially structured are eigenfunction-based spatial filtering methods such as Moran's eigenvector maps (MEM) and principal co...

journal_title：Oecologia

authors： Blanchet FG,Legendre P,Maranger R,Monti D,Pepin P

更新日期：2011-06-01 00:00:00

abstract：:Dolman (1995) measured the intake rates of snow buntings feeding on seed patches at difference bird densities, for each of two different seed densities. Interference occurred in the low food density treatment, with intake rate declining at high bird densities, but did not occur in the high food density treatment. Dolm...

journal_title：Oecologia

authors： Moody AL,Ruxton GD

更新日期：1996-11-01 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：:During summer, 1971, a massive outbreak of red tide resulted in defaunation of a previously characterized sandy, intertidal habitat in upper Old Tampa Bay, Tampa, Florida. Repopulation of the polychaete fauna was studied from August, 1971, to July, 1973. A transect composed of 4 stations running from just below mean h...

journal_title：Oecologia

authors： Dauer DM,Simon JL

更新日期：1976-06-01 00:00:00

abstract：:The life history of Yucca glauca in the Great Plains was the subject of a four year field study. Data were incorporated in a stage transition model (based on rosette size) to explain how populations are maintained in spite of large regional and temporal variation in sexual reproductive success. Rosette size was found ...

journal_title：Oecologia

authors： Kingsolver RW

更新日期：1986-06-01 00:00:00

abstract：:Sex- and age-dependence in recruitment and dispersal are often explained by costs arising from competition for holding a breeding territory over the years-a typical feature of species living in stable habitats. For instance, long-lived birds with male territoriality often exhibit large variation in recruitment age and...

journal_title：Oecologia

authors： Acker P,Francesiaz C,Béchet A,Sadoul N,Lessells CM,Pijl AS,Besnard A

更新日期：2018-01-01 00:00:00

abstract：:The influence of hunger level and predation risk on habitat choice and foraging in crucian carp, Carassius carassius, were studied in a laboratory experiment. Experiments were carried out in aquaria with or without a predator (pike, Esox lucius). Habitat use and foraging activity of three-fish foraging groups of eithe...

journal_title：Oecologia

authors： Pettersson LB,Brönmark C

更新日期：1993-09-01 00:00:00