A demographic approach to understanding the effects of climate on population growth.

abstract：:On a shallow sand flat at Princess Royal Harbour near Albany, Western Australia, the brown macrophyte Hormosira banksii attaches to shells of infaunal bivalves. Hormosira occupies shells of Katelysia rhytiphora in preference to K. scalarina. We proposed and tested four hypotheses to explain this host occupation patter...

journal_title：Oecologia

authors： Black R,Peterson CH

更新日期：1987-09-01 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：:Twenty nine harpacticoid copepods are new to Bermuda and significant changes are noted in the distribution records of several species. Six temporary groups are organized to separate the copepods on their apparent zoogeographical ranges: (1) cosmopolitan, (2) warm temperate-tropical, (3) North Atlantic, (4) North Atlan...

journal_title：Oecologia

authors： Coull BC,Herman SS

更新日期：1970-12-01 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：:Climate change effects on plants are expected to be primarily mediated through early life stage transitions. Snowfall variability, in particular, may have profound impacts on seedling recruitment, structuring plant populations and communities, especially in mid-latitude systems. These water-limited and frequently inva...

journal_title：Oecologia

authors： Gornish ES,Aanderud ZT,Sheley RL,Rinella MJ,Svejcar T,Englund SD,James JJ

更新日期：2015-02-01 00:00:00

abstract：:Arbuscular mycorrhizal (AM) fungi are ubiquitous and ecologically important microbes in grasslands. Both the host plant species and soil properties have been suggested as potentially important factors structuring AM fungal communities based on studies within local field sites. However, characterizations of the communi...

journal_title：Oecologia

authors： Ji B,Bentivenga SP,Casper BB

更新日期：2012-01-01 00:00:00

abstract：:Habitat fragmentation poses an inherent problem for metacommunity dynamics, as dispersal among communities is hindered by increasing isolation and the loss of patches. Wetlands are one such system that have undergone excessive destruction and fragmentation in recent years. Zooplankton within these communities have his...

journal_title：Oecologia

authors： Allen MR

更新日期：2007-08-01 00:00:00

abstract：:Seed predation in relation to patterns of pod (and seed) distribution was examined in five samples of the common milkweed (Asclepias syriaca L.), in tests of the "resource-concentration" effect both within- and beween-plants. The proportion of pods in a cluster that were attacked, particularly by the weevil Rhyssomatu...

journal_title：Oecologia

authors： Franson SE,Willson MF

更新日期：1983-09-01 00:00:00

abstract：:In a North Carolina population of Diamorpha smallii, densities were artificially manipulated by thinning stands to predetermined densities. Individuals in areas of high density produce fewer seeds than individuals at low density in the same habitat. Three components of fecundity, the number of flowers per plant, the n...

journal_title：Oecologia

authors： Clay K,Shaw R

更新日期：1981-10-01 00:00:00

abstract：:To preserve biodiversity and ecosystem functions in a globally changing world it is crucial to understand the effect of land use on ecosystem processes such as pollination. Floral colouration is known to be central in plant-pollinator interactions. To date, it is still unknown whether land use affects the colouration ...

journal_title：Oecologia

authors： Binkenstein J,Renoult JP,Schaefer HM

更新日期：2013-10-01 00:00:00

abstract：:The response of an Australian arid-zone gecko community to sulphur dioxide and salt spray from a mine and industrial site was investigated from 1992 to 1995. Geckos were abundant and fecund at control sites in chenopod shrubland and annual capture rates were strongly influenced by minimum night temperatures. Capture r...

journal_title：Oecologia

authors： Read JL

更新日期：1998-04-01 00:00:00

abstract：:Six early successional plant species with differing photosynthetic pathways (3 C3 species and 3 C4 species) were grown at either 300, 600, or 1,200 ppm CO2 and at either 0.0 or 0.25 ppm SO2. Total plant growth increased with CO2 concentration for the C3 species and varied only slightly with CO2 for the C4 species. Fum...

journal_title：Oecologia

authors： Carlson RW,Bazzaz FA

更新日期：1982-01-01 00:00:00

abstract：:Experiments are described which test the hypothesis that more host-specific species of caterpillars should be less aceptable to a generalist predator than polyphagous species. Caterpillars of all species were tested in paired choice tests with the Argentine ant, Iridomyrmex humilis. Experiments were replicated ten tim...

journal_title：Oecologia

authors： Bernays EA,Cornelius ML

更新日期：1989-05-01 00:00:00

abstract：:Analysis of the branch area/stem area ratio of Scots pine growing in different climatic conditions in Europe and Siberia indicates that the branch area supported by a stem increases in warmer and drier conditions. The ratio was significantly correlated with several climatic variables, especially with potential evapotr...

journal_title：Oecologia

authors： Berninger F,Nikinmaa E,Hari P,Mencuccini M,Grace J

更新日期：1995-05-01 00:00:00

abstract：:Experimental ponds were used as a model system of habitat patches to study the effect of habitat size on the relative growth performance of tadpoles of Bufo americanus and Pseudacris triseriata, and on colonization by predatory insects. Three pond depths and surface areas were habitat size treatments in a replicated, ...

journal_title：Oecologia

authors： Pearman PB

更新日期：1995-04-01 00:00:00

abstract：:Male dragonflies of the species Aeschna cyanea pay several visits per day to a suitable pond in search of mates. The influence of the population density upon the daily duration of presence of single dragonfly males was investigated by means of multiple regression analysis. Several environmental factors were also consi...

journal_title：Oecologia

authors： Kaiser H

更新日期：1974-12-01 00:00:00

abstract：:We report a field study of the haematocrit of pied flycatcher (Ficedula hypoleuca) nestlings when close to fledging. First a descriptive study was conducted of both fledgling and adult haematocrit over 2 years to analyse correlates of variation in this trait. Then a swapping experiment was performed to see whether var...

journal_title：Oecologia

authors： Potti J,Moreno J,Merino S,Frías O,Rodríguez R

更新日期：1999-07-01 00:00:00

abstract：:In this study we assessed the effectiveness of rodents as dispersers of Quercus ilex in a patchy landscape in southeastern Spain. We experimentally followed the fates of 3,200 marked and weighed acorns from dispersal through the time of seedling emergence over three years. Rodents handled about 99% of acorns, and disp...

journal_title：Oecologia

authors： Gómez JM,Puerta-Piñero C,Schupp EW

更新日期：2008-03-01 00:00:00

abstract：:Stable carbon isotope techniques were employed to study the food habits of the termite Macrotermes michaelseni (Isoptera: Termitidae) in a semiarid savanna habitat in Kenya. At Kajiado this species utilized approximately 70% herbaceous vegetation (mostly grass) and 30% woody vegetation, while at Ruiru approximately 64...

journal_title：Oecologia

authors： Boutton TW,Arshad MA,Tieszen LL

更新日期：1983-08-01 00:00:00

abstract：:A number of studies at large scales have pointed out that abiotic factors and recolonization dynamics appear to be more important than biotic interactions in structuring stream-fish assemblages. In contrast, experimental and field studies at small scales show the importance of competition among stream fishes. However,...

journal_title：Oecologia

authors： Peres-Neto PR

更新日期：2004-07-01 00:00:00

abstract：:The costs and benefits of resource integration in Hydrocotyle bonariensis were examined by comparing severed and intact clones grown across multiple resource gradients. Basipetal movement of water, nitrogen and photosynthates was demonstrated to occur between two rhizome branch systems interconnecting hundreds of rame...

journal_title：Oecologia

authors： Evans JP

更新日期：1991-04-01 00:00:00

abstract：:Small forest dwelling mammals are considered to be major consumers and vectors of hypogeous ectomycorrhizal (ECM) fungi, which have lost the ability of active spore discharge. Fungal spore dispersal by mycophagy is deemed an important process involved in forest regeneration, resilience and vitality, primarily based on...

journal_title：Oecologia

authors： Schickmann S,Urban A,Kräutler K,Nopp-Mayr U,Hackländer K

更新日期：2012-10-01 00:00:00

abstract：:The activity behaviour of the common vole, Microtus arvalis was studied in an enclosure during a one-year cycle. The number of voles varied between 2 and 25 specimens. Emergence from burrows, running through pathways and visits at a feeding site were automatically recorded by passage counters which we developed for us...

journal_title：Oecologia

authors： Lehmann U,Sommersberg CW

更新日期：1980-01-01 00:00:00

abstract：:A comparison of photosynthetic adaptations of desert ephemerals from sun and shade environments has shown differences in the magnitude and timing of maximum CO2 assimilation. Photosynthetic rates of species from the sun environment were significantly higher, and maximum observed levels occurred both earlier in the day...

journal_title：Oecologia

authors： Wallace CS,Szarek SR

更新日期：1981-10-01 00:00:00

abstract：:The degree of CAM-cycling was examined in plants from 23 populations representing five morphologically similar species of Talinum to determine how CAM-cycling correlates with site aridity and drought stress. In the field, CAM-cycling, as indicated by the amount of malic acid accumulated in plant tissues overnight, and...

journal_title：Oecologia

authors： Harris FS,Martin CE

更新日期：1991-05-01 00:00:00

abstract：:In long-lived species, adult survival is the population parameter having the highest elasticity, and therefore, it can be expected to be least affected by climatic variations. We studied the dynamics and survival of breeding female common eiders Somateria mollissima mollissima in the Baltic Sea from 1960 to 2007. Usin...

journal_title：Oecologia

authors： Hario M,Mazerolle MJ,Saurola P

更新日期：2009-04-01 00:00:00

abstract：:CO2 assimilation rate (A) and leaf conductance (g) were measured in the field on intact branches of 35-year-old Picea abies (L.) Karst. trees, in five plots each in a healthy and a declining stand. The declining site included trees with yellow needles. In order to separate atmospheric effects on gas exchange from effe...

journal_title：Oecologia

authors： Zimmermann R,Oren R,Schulze E-,Werk KS

更新日期：1988-09-01 00:00:00

abstract：:The apparent energy of activation (E a), Michaelis-Menten constant (K mfor oxaloacetate), V max/K mratios and specific activities of NADP+-malate dehydrogenase (NADP+-MDH; EC 1.1.1.82) were analyzed in plants of Barnyard grass from Québec (QUE) and Mississippi (MISS) acclimated to two thermoperiods 28/22°C, 21/15°C, a...

journal_title：Oecologia

authors： Simon JP,Potvin C,Strain BR

更新日期：1989-10-01 00:00:00

abstract：:Hemiparasitic plants tend to thrive in and significantly affect plant communities in low-nutrient, high-light environments. Hemiparasites are assumed to be weak competitors for light but strong parasites, leading to the prediction that effects on hosts and communities should be a function of resource supply. We invest...

journal_title：Oecologia

authors： Borowicz VA,Armstrong JE

更新日期：2012-07-01 00:00:00

abstract：:Aspects of the demography of Monhystera disjuncta were investigated at different temperatures (in agnotobiotic cultures) and in different feeding conditions (monoxenic cultures with different bacterial strains, and different densities in the feeding suspension with one strain). Embryonic development time, minimum gene...

journal_title：Oecologia

authors： Vranken G,Herman PM,Heip C

更新日期：1988-11-01 00:00:00