Abstract:
:Stemflow inputs of magnesium and potassium were measured from 57 canopy trees representing eight species under heavy rainfall conditions in two tropical forest sites in northeast Queensland, Australia. In the premontane tropical moist forest site on the Atherton Tableland, the stemflow input per unit trunk basal area of 51 canopy trees was found to be 0.46 g m-2 of Mg2+ and 4.22 g m-2 of K+ for an average wet season rainday of 99 mm. In the wetter montane tropical rainforest site on Mount Bellenden Ker, the stemflow input per unit trunk basal area of six canopy trees was 5.55 g m-2 of Mg2+ and 9.12 g m-2 of K+ for a wet season rainday of 38 mm. These stemflow inputs from single raindays are greater than the mean annual rainfall input and are almost of the same order of magnitude as the mean annual throughfall input of these cations to areas equal to the trunk basal area from which the stemflow was collected. Stemflow cation fluxes of this magnitude are mainly attributable to the funnelling of large quantities of rainwater down the trunks of these canopy trees by their thoroughly wetted, upwardly inclined branches.
journal_name
Oecologiajournal_title
Oecologiaauthors
Herwitz SRdoi
10.1007/BF00379506subject
Has Abstractpub_date
1986-10-01 00:00:00pages
423-425issue
3eissn
0029-8549issn
1432-1939pii
10.1007/BF00379506journal_volume
70pub_type
杂志文章相关文献
OECOLOGIA文献大全abstract::Dormancy is a common way in which organisms survive environmental conditions that would be lethal to the active individual. However, while dormant, individuals forego reproduction. Hence theory suggests an optimal time in which to enter dormancy, depending on risks associated with both remaining active and entering do...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/s00442-004-1657-5
更新日期:2004-11-01 00:00:00
abstract::Macoma balthica (L.) is a common clam of the estuarine seafloor, belonging to an important group of invertebrates possessing the capacity to choose between the two fundamental modes of feeding available, using its siphon to inhale either suspended food particles from the water or food particles deposited on the sedime...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/BF00316954
更新日期:1994-12-01 00:00:00
abstract::Measurements were made of the photosynthetic gas exchange properties and water use efficiency of 19 species of mangrove in 9 estuaries with different salinity and climatic regimes in north eastern Australia and Papua New Guinea. Stomatal conductance and CO2 assimilation rates differed significantly between species at ...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/BF00378237
更新日期:1989-04-01 00:00:00
abstract::Although consumers often rely on chemical information to optimize their foraging strategies, it is poorly understood how top carnivores above the third trophic level find resources in heterogeneous environments. Hyperparasitoids are a common group of organisms in the fourth trophic level that lay their eggs in or on t...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/s00442-019-04352-w
更新日期:2019-03-01 00:00:00
abstract::Using resource selection functions, we examined habitat selection patterns of barren-ground grizzly bears (Ursus arctos) in the central Canadian Arctic among and within home ranges. There was no difference between the sexes with regard to habitat selection patterns at the home range level (Wilks' λ, approx. F 11,11=1....
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/s00442-002-0941-5
更新日期:2002-06-01 00:00:00
abstract::Pre-hatching developmental times for prosobranch gastropods are greatly influenced by temperature and taxonomic affinity. If the data used here (including all available data from the Muricacea) are a representative sample, then reasonably accurate estimates of developmental time can be obtained for most prosobranchs k...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/BF00345889
更新日期:1975-03-01 00:00:00
abstract::The aim of our study was to identify interactions between the decomposition of aboveground litter and rhizosphere activity. The experimental approach combined the placement of labelled litter (delta13C=-37.9 per thousand ) with forest girdling in a 35-year-old Norway spruce stand, resulting in four different treatment...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/s00442-004-1540-4
更新日期:2004-05-01 00:00:00
abstract::Carbon isotopes are commonly used in trophic ecology to estimate consumer diet composition. This estimation is complicated by the fact that lipids exhibit a more depleted carbon signature (δ13C) than other macromolecules, and are often found at different concentrations among individual organisms. Some researchers argu...
journal_title:Oecologia
pub_type: 杂志文章,评审
doi:10.1007/s00442-019-04525-7
更新日期:2019-12-01 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
pub_type: 杂志文章
doi:10.1007/BF00348040
更新日期:1981-08-01 00:00:00
abstract::Although it is well-documented from theoretical studies that pathogens have the capacity to generate cycles, the occurrence and role of pathogens and disease have been poorly empirically studied in cyclic voles and lemmings. In screening for the occurrence of disease in cyclic vole and lemming populations, we found th...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/s00442-006-0493-1
更新日期:2006-11-01 00:00:00
abstract::Endozoochory plays a prominent role for the dispersal of seed plants, and dispersal vectors are well known. However, for taxa such as ferns and bryophytes, endozoochory has only been suggested anecdotally but never tested in controlled experiments. We fed fertile leaflets of three ferns and capsules of four bryophyte ...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/s00442-012-2536-0
更新日期:2013-07-01 00:00:00
abstract::The tendency of mammals to increase or decrease body size with respect to geography or time depends on the abundance, availability, and size of resources. This dependency accounts for a change in mass with respect to geography, including latitude (Bergmann's rule), a desert existence, and life on oceanic islands (the ...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/s00442-010-1621-5
更新日期:2010-09-01 00:00:00
abstract::Clonal plants have more traits enabling individual persistence (larger belowground storage of buds and assimilates), whereas non-clonal plants have more traits enabling population persistence (a higher reliance on regeneration from seeds). This difference presumably makes those groups respond differently to disturbanc...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/s00442-020-04724-7
更新日期:2020-08-01 00:00:00
abstract::Larvae of the sessile marine invertebrate Bugula neritina (Bryozoa) are protected by an effective chemical defense. From the larvae, we isolated three bryostatin-class macrocyclic polyketides, including the novel bryostatin 20, that deterred feeding by a common planktivorous fish that co-occurs with B. neritina. A uni...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/s00442-004-1487-5
更新日期:2004-03-01 00:00:00
abstract::The species composition of vesicular-arbuscular mycorrhizal (VAM) fungal communities changed during secondary succession of abandoned fields based on a field to forest chronosequence. Twenty-five VAM fungal species were identified. Seven species were clearly early successional and five species were clearly late succes...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/BF00317600
更新日期:1991-05-01 00:00:00
abstract::Understanding the differences in fine-root traits among different species is essential to gain a detailed understanding of resource conservation and acquisition strategies of plants. We aimed to explore whether certain root traits are consistent among subsets of species and characterize species together into meaningfu...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/s00442-019-04546-2
更新日期:2019-12-01 00:00:00
abstract::Growth and respiration were measured in a species of Anonchus (Nematoda: Plectidae) at 5°C, 10°C, 15°C, 20°C and 25°C. At 5°C no growth was measurable but the organisms remained active. Maximum production occurred at 15°C, but the highest rate of growth occurred at 20°C. Thus, adult size attained is dependent on the t...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/BF00377437
更新日期:1979-08-01 00:00:00
abstract::The ability to respond in a specific manner to different light conditions imposed by different species of grass is a major factor contributing to white clover persistence in pastures. Gaps in a pasture provide light with a higher red:far-red ratio (R:FR) and higher photosynthetic photon flux density (PPFD) than the li...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/s004420000453
更新日期:2000-10-01 00:00:00
abstract::Increasing sea surface temperatures are predicted to alter marine plant-herbivore interactions and, thus, the structure and function of algal and seagrass communities. Given the fundamental role of host plant quality in determining herbivore fitness, predicting the effects of increased temperatures requires an underst...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/s00442-018-4084-8
更新日期:2018-06-01 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
pub_type: 杂志文章
doi:10.1007/s004420050434
更新日期:1998-04-01 00:00:00
abstract::The changing populations of weeds during 13 years of the Broadbalk continuous wheat experiment were analysed to investigate the extent of differences in shortterm variability of cover between species. The data were from two sections of the experiment where winter wheat was grown continuously under herbicide treatment ...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/BF00317108
更新日期:1993-06-01 00:00:00
abstract::The duration times of the eggs, nauplii and copepodites of Cyclops vicinus and Eudiaptomus gracilis were obtained, by experiment, at 5, 10, 15 and 20°C. In contrast with previously published work on copepod development, the ovigerous females, used in the cultures at these temperatures, were removed from a water storag...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/BF00344742
更新日期:1974-12-01 00:00:00
abstract::Dreissenid mussels (Dreissena polymorpha and D. bugensis) have re-engineered Great Lakes ecosystems since their introduction in the late 1980s. Dreissenids can have major indirect impacts on profundal habitats by redirecting nutrients and energy away from pelagic production (which supplies profundal production) and de...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/s00442-008-1271-z
更新日期:2009-04-01 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
pub_type: 杂志文章
doi:10.1007/s004420050155
更新日期:1997-04-01 00:00:00
abstract::Seasonal net nitrogen (N) and phosphorus (P) mineralization was investigated at Abisko, Swedish Lapland in soils of a subarctic heath and in soils of a colder (by about 4° C), high altitude fellfield by (a) using in situ soil incubation in soils which had been shaded or subjected to two levels of increased temperature...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/BF00323488
更新日期:1993-08-01 00:00:00
abstract::Data are presented on the influence of Athous subfuscus larvae (Coleoptera, Elateridae) on the microbial carbon cycle in the biotically most active horizons of three contrasting beech forest soils: the Ah horizon of a mull soil on limestone (Göttinger Wald, FRG), the F/H horizon of a moder soil on new red sandstone (S...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/BF00379044
更新日期:1989-08-01 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
pub_type: 杂志文章
doi:10.1007/BF00379884
更新日期:1984-08-01 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
pub_type: 杂志文章
doi:10.1007/BF00345086
更新日期:1974-03-01 00:00:00
abstract::Agricultural intensification (AI) is currently a major driver of biodiversity loss and related ecosystem functioning decline. However, spatio-temporal changes in community structure induced by AI, and their relation to ecosystem functioning, remain largely unexplored. Here, we analysed 16 quantitative cereal aphid-par...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/s00442-012-2366-0
更新日期:2012-12-01 00:00:00
abstract::Population dynamics of attached algae in a eutrophic farmland stream (Wellow Brook, England) were correlated through multiple regression analyses with changes in 7 physico-chemical parameters (temperature, light, water velocity, pH, NO3-N, P2O5-P, SiO2-Si). Samples were taken every 2 weeks for 25 consecutive months be...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/BF00345700
更新日期:1977-09-01 00:00:00