A tree-ring perspective on the terrestrial carbon cycle.

abstract：:Studies of phenotypic variation in nature often consider only a single potential selective agent. In such cases, it remains an open question as to whether variation attributed to that single measured agent might be influenced by some other unmeasured agent. Previous research has shown that phenotypic variation in the ...

journal_title：Oecologia

authors： Gotanda KM,Delaire LC,Raeymaekers JA,Pérez-Jvostov F,Dargent F,Bentzen P,Scott ME,Fussmann GF,Hendry AP

更新日期：2013-05-01 00:00:00

abstract：:Leaf diffusion resistance (r 1) of the upper and lower leaf surfaces of several Populus clones was related to leaf water potential (ψ1), light intensity, vapor pressure deficit (VPD), and temperature by intrinsicallylinear, logarithmic multiple regression analyses. Regression equations accounted for up to 80% of varia...

journal_title：Oecologia

authors： Pallardy SG,Kozlowski TT

更新日期：1979-01-01 00:00:00

abstract：:The mass loss of litter mixtures is often different than expected based on the mass loss of the component species. We investigated if the identity of neighbour species affects these litter-mixing effects. To achieve this, we compared decomposition rates in monoculture and in all possible two-species combinations of ei...

journal_title：Oecologia

authors： Hoorens B,Coomes D,Aerts R

更新日期：2010-02-01 00:00:00

abstract：:The legume foodplants of Colias butterflies possess specific chemical components which stimulate oviposition in females of the genus. Different legumes provide different degrees of stimulation, as demonstrated by close correlation between field observations and laboratory experiments with a new behavioral assay. Sever...

journal_title：Oecologia

authors： Stanton ML

更新日期：1979-01-01 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：:Natural regeneration of abandoned farmland provides an important opportunity to contribute to global reforestation targets, including the Bonn Challenge. Of particular importance are the montane tropics, where a long history of farming, frequently on marginal soils, has rendered many ecosystems highly degraded and hot...

journal_title：Oecologia

authors： Hethcoat MG,King BJ,Castiblanco FF,Ortiz-Sepúlveda CM,Achiardi FCP,Edwards FA,Medina C,Gilroy JJ,Haugaasen T,Edwards DP

更新日期：2019-10-01 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：: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：:We reared larvae of three generalist insect species on plants occurring in their habitats. Individuals of each species were kept either on mixed diets, or on each plant species separately. We measured food plant preference in the mixed-diet group and compared insect performance on single plants to the performance on t...

journal_title：Oecologia

authors： Hägele BF,Rowell-Rahier M

更新日期：1999-06-01 00:00:00

abstract：:We contrasted the seasonal use of simulated large rain events (24 mm) by three native species of the arid Colorado Plateau: the perennial grass Hilaria jamesii and two shrubs Artemesia filifolia and Coleogyne ramosissima. Deuterium-enriched water was used to distinguish shallow "pulse" water from water in deeper soil ...

journal_title：Oecologia

authors： Schwinning S,Davis K,Richardson L,Ehleringer JR

更新日期：2002-02-01 00:00:00

abstract：:Desert populations of the evergreen dioecious shrub Simmondsia chinensis exhibit sex-related leaf and canopy dimorphisms not present in populations from more mesic coastal environments. Leaves on female shrubs have characteristically larger sizes, greater specific weights, and greater water-holding capacity than male ...

journal_title：Oecologia

authors： Wallace CS,Rundel PW

更新日期：1979-12-01 00:00:00

abstract：:Many global change drivers chronically alter resource availability in terrestrial ecosystems. Such resource alterations are known to affect aboveground net primary production (ANPP) in the short term; however, it is unknown if patterns of response change through time. We examined the magnitude, direction, and pattern ...

journal_title：Oecologia

authors： Smith MD,La Pierre KJ,Collins SL,Knapp AK,Gross KL,Barrett JE,Frey SD,Gough L,Miller RJ,Morris JT,Rustad LE,Yarie J

更新日期：2015-04-01 00:00:00

abstract：:For unicellular organisms, a lack of effects of local species richness on ecosystem function has been proposed due to their locally high species richness and their ubiquitous distribution. High dispersal ability and high individual numbers may enable unicellular taxa to occur everywhere. Using our own and published da...

journal_title：Oecologia

authors： Hillebrand H,Watermann F,Karez R,Berninger UG

更新日期：2001-01-01 00:00:00

abstract：:The operative temperature of the environment was estimated for starlings using hollow, unheated taxidermic mounts. On average, adults foraging in full sun were characterized by shorter foraging bouts than those adults foraging in full shade. Simultaneous observations of air temperature, operative temperature, and the ...

journal_title：Oecologia

authors： Clark L

更新日期：1987-01-01 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：:Leaf surface conductance and apparent photosynthesis were measured during late summer and autumn on saplings and sprouts of pin cherry (Prunus pensylvanica), yellow birch (Betula alleghaniensis), American beech (Fagus grandifolia), and sugar maple (Acer saccharum) naturally revegetating a site in the northern hardwood...

journal_title：Oecologia

authors： Amthor JS,Gill DS,Bormann FH

更新日期：1990-08-01 00:00:00

abstract：:Understanding how communities respond to extreme climatic events is important for predicting the impact of climate change on biodiversity. The plant vigor and stress hypotheses provide a theoretical framework for understanding how arthropods respond to stress, but are rarely tested at the community level. Following a ...

journal_title：Oecologia

authors： Stone AC,Gehring CA,Whitham TG

更新日期：2010-11-01 00:00:00

abstract：:An empirical model for predicting net photosynthesis (P N ) and dark respiration (R D ) in the field was developed and tested for Bouteloua gracilis (H.B.K.) Lag., the dominant C4 grass of the North American shortgrass prairie. P N is predicted as a function of soil water potential, canopy air temperature, irradiance,...

journal_title：Oecologia

authors： Detling JK,Parton WJ,Hunt HW

更新日期：1978-01-01 00:00:00

abstract：:We assessed the performance of two estimators of species richness, the Chao2 and the Coleman 'random placement curve'. Using a dataset of intertidal fish from the Norwegian Skagerrak coast, we found that Chao2 was effective for low sampling intensity, often reaching asymptotic values for few samples, but for higher sa...

journal_title：Oecologia

authors： Lekve K,Ellingsen KE,Lingjaerde OC,Gjøsaeter J,Stenseth NC

更新日期：2005-06-01 00:00:00

abstract：:The carotenoid composition of 33 species of green algal lichens and 5 species of blue-green algal lichens was examined and compared with that of the leaves of higher plants. As in higher plants, green algal lichen species which were found in both shade and full sunlight exhibited higher levels of the carotenoids invol...

journal_title：Oecologia

authors： Adams WW 3rd,Demmig-Adams B,Lange OL

更新日期：1993-07-01 00:00:00

abstract：:Eight species of carabids (six of them represented by two subpopulations) were sampled. It appeared that the mean number of ripe eggs in the ovaries could be regressed on the specific body weight (ranging from 20 to 285 mg dry wt.): the mean decreased in heavier species, and was higher in the autumn breeders than in t...

journal_title：Oecologia

authors： Grüm L

更新日期：1984-12-01 00:00:00

abstract：:Classical resource- and the less studied ratio-dependent models of predator-prey relationships provide divergent predictions as to the sustained ecological effects of bottom-up forcing. While resource-dependent models, which consider only instantaneous prey density in modelling predator responses, predict community re...

journal_title：Oecologia

authors： Bishop MJ,Kelaher BP,Smith MP,York PH,Booth DJ

更新日期：2006-10-01 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：:In order to assess the role of parasitoids in the regulation of non-outbreaking populations of Epirrita autumnata, a geometrid lepidopteran with outbreaking populations in northern Europe, we examined the temporal and spatial variation of larval parasitism in southwestern Finland during 6 successive years. The study w...

journal_title：Oecologia

authors： Teder T,Tanhuanpää M,Ruohomäki K,Kaitaniemi P,Henriksson J

更新日期：2000-06-01 00:00:00

abstract：:Optimal diet theory often fails to predict a forager's diet choice when prey are mobile. Because they escape or defend themselves, mobile prey are likely to increase the forager's handling time, thereby decreasing its fitness gain rate. Many animals have been shown to select their prey so as to maximize either their f...

journal_title：Oecologia

authors： Barrette M,Wu GM,Brodeur J,Giraldeau LA,Boivin G

更新日期：2009-01-01 00:00:00

abstract：:Predicted changes in soil water availability regimes with climate and land-use change will impact the community of functionally important soil organisms, such as macro-detritivores. Identifying and quantifying the functional traits that underlie interspecific differences in desiccation resistance will enhance our abil...

journal_title：Oecologia

authors： Dias AT,Krab EJ,Mariën J,Zimmer M,Cornelissen JH,Ellers J,Wardle DA,Berg MP

更新日期：2013-07-01 00:00:00

abstract：:Plant-soil feedbacks have been widely implicated as a driver of plant community diversity, and the coexistence prediction generated by a negative plant-soil feedback can be tested using the mutual invasibility criterion: if two populations are able to invade one another, this result is consistent with stable coexisten...

journal_title：Oecologia

authors： Burns JH,Brandt AJ,Murphy JE,Kaczowka AM,Burke DJ

更新日期：2017-04-01 00:00:00

abstract：:Gas exchange characteristics in leaves of the sclerophyll shrub Quercus coccifera were studied in the natural habitat in Portugal during spring and during the summer dry period. Compared to other sclerophyll species growing at the same site, photosynthesis in leaves of Quercus coccifera was less affected by water stre...

journal_title：Oecologia

authors： Tenhunen JD,Lange OL,Harley PC,Beyschlag W,Meyer A

更新日期：1985-08-01 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：:Caterpillars of Maculinea arion are obligate predators of the brood of Myrmica sabuleti ants. In the aboratory, caterpillars eat the largest available ant larvae, although eggs, small larvae and prepupae are also palatable. This is an efficient way to predate. It ensures that newly-adopted caterpillars consume the fin...

journal_title：Oecologia

authors： Thomas JA,Wardlaw JC

更新日期：1992-08-01 00:00:00