Abstract:
:The potential production of estuarine interstitial microalgae from two tidal flats differing in sediment texture was determined manometrically. Sediment cores from the Southbeach tidal flat showed a maximum amount of productivity in the lower intertidal zone whereas sediment cores from Sally's Bend showed no production in this zone. The upper cm3 of sediment from both tidal flats had a higher amount of gross potential production than subsurface core sections. the sandy substratum from Southbeach had an estimated gross annual production of 275-325 g C m-2 yr-1 whereas the silty substratum of Sally's Bend had an estimated value of 0-125 g C m-2 yr-1. Respiration/Photosynthesis (R/P) ratios indicate that respiration often exceeds photosynthesis on the Sally's Bend tidal flat.
journal_name
Oecologiajournal_title
Oecologiaauthors
Riznyk RZ,Phinney HKdoi
10.1007/BF00368963subject
Has Abstractpub_date
1972-09-01 00:00:00pages
193-203issue
3eissn
0029-8549issn
1432-1939pii
10.1007/BF00368963journal_volume
10pub_type
杂志文章相关文献
OECOLOGIA文献大全abstract::Environmental filtering and niche differentiation are processes proposed to drive community assembly, generating nonrandom patterns in community trait distributions. Despite the substantial intraspecific trait variation present in plant communities, most previous studies of trait-based community assembly have used spe...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/s00442-012-2351-7
更新日期:2012-11-01 00:00:00
abstract::The illumination level at which the pike (Esox lucius) eats most Leucaspius delineatus was compared to that at which the school of Leucaspius disperses.The pike easts Leucaspius predominantly when there is little light (50-75% of its entire prey at less than 1 Lux).The school of Leucaspius gradually disperses at less ...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/BF00345687
更新日期:1977-03-01 00:00:00
abstract::Theory on intraguild (IG) predation predicts that coexistence of IG-predators and IG-prey is only possible for a limited set of parameter values, suggesting that IG-predation would not be common in nature. This is in conflict with the observation that IG-predation occurs in many natural systems. One possible explanati...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/s00442-010-1605-5
更新日期:2010-06-01 00:00:00
abstract::Urbanization is a major challenge for biodiversity conservation, yet the evolutionary processes taking place in urbanized areas remain poorly known. Human activities in cities set new selective forces in motion which need to be investigated to predict the evolutionary responses of animal species living in urban areas....
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/s00442-013-2663-2
更新日期:2013-11-01 00:00:00
abstract:: Black and white spruce (Picea mariana and P. glauca) exhibit a striking micro-geographic distribution pattern at the southern edge of the boreal forest. Black spruce grows in flooded nutrient-poor muskegs, while white spruce is found primarily on drier upland sites, and the two rarely form mixed stands. In an attempt...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/s004420050145
更新日期:1997-04-01 00:00:00
abstract::We examined the response of the birch tube-maker Acrobasis betulella Hulst (Lepidoptera: Pyralidae) to habitat patch isolation and edges. Density of A.␣betulella larva was higher on distant islands than on islands close to the shore. Following experimental removal of all larvae from the islands, adults were able to re...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/s004420050134
更新日期:1997-03-01 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
pub_type: 杂志文章
doi:10.1007/BF00790026
更新日期:1985-12-01 00:00:00
abstract::Non-trophic interactions, driven by one species changing the behavior but not density of another species, appear to be as pervasive as those involving consumption. However, ecologists have only begun to explore non-trophic interactions in species-rich communities. We investigated interactions within a community includ...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/s00442-009-1486-7
更新日期:2010-03-01 00:00:00
abstract::Interspecific interactions of herbivores sharing a host plant may be important in structuring herbivore communities. We investigated host plant-mediated interactions of root (Hylobius transversovittatus) and leaf herbivores (Galerucella calmariensis), released to control purple loosestrife (Lythrum salicaria) in North...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/s00442-004-1747-4
更新日期:2005-02-01 00:00:00
abstract::This study examines the idea that variation in forelimb length among male anurans influences reproductive success, and does so independently of body size. Analyses of covariance and multivariate analyses of morphological data for five species of explosives breeders are used to test the prediction that for species in w...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/BF00377623
更新日期:1986-05-01 00:00:00
abstract::We determined the water-soluble thiol (SH) content and the osmolality of the cell sap in spruce trees of both low- and high-altitude origin that were transplanted to two test areas at different altitudes (400 m and 1700 m). There was little or no significant difference in SH content and osmotic value between trees of ...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/BF00379966
更新日期:1988-07-01 00:00:00
abstract::Understanding how habitat selection changes with population density is a key concept in population regulation, community composition and managing impacts on biodiversity and ecosystem services. At low density, it is expected that individuals select habitats in terms of their preference, but as population density incre...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/s00442-013-2686-8
更新日期:2013-11-01 00:00:00
abstract::I used a combination of laboratory experiments and field surveys to examine the role that population-specific predation risk may play in shaping the life history strategy of a stream-dwelling isopod Lirceus fontinalis. Two focal populations were identified that were exposed to different predator types. The first popul...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/BF00334410
更新日期:1996-04-01 00:00:00
abstract::Ecophysiological differences related to photosynthesis were compared in holm oak Quercus ilex leaves from undisturbed holm-oak vegetation, resprouts after fire and resprouts after tree-fell. No significant differences in any parameter measured were observed between the two kinds of resprout throughout the first growin...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/BF00328730
更新日期:1996-02-01 00:00:00
abstract::Reproduction is a demanding activity for animals, since they must produce, and in some cases protect and provision, their young. It is often overlooked that demands of reproduction may also be exacerbated by exposure to contaminants. In this study, we make use of an exceptional long-term dataset to perform a cross-sec...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/s00442-014-2975-x
更新日期:2014-08-01 00:00:00
abstract::This paper gives the first reports on aphid effects on rhizosphere organisms as influenced by soil nutrient status and plant development. Barley plants grown in pots fertilized with N but without P (N), with N and P (NP), or not fertilized (0) were sampled in the early growth phase (day 25), 1 week before and 1 week a...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/s00442-004-1651-y
更新日期:2004-09-01 00:00:00
abstract::It has long been argued that seed dispersal enhances recruitment in tropical trees by allowing offspring to `escape' strong density/distance-dependent attack by insects, pathogens and rodents. Here we examined the effects of canopy openness and parent-offspring distance upon the frequency and timing of Chlorocardium r...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/s004420050778
更新日期:1999-05-01 00:00:00
abstract::A factorial design of clipping and compaction was used to study the responses of Schizachyrium scoparium and its mycorrhizal symbionts to these stresses. All treatment combinations significantly reduced the growth and biomass of plants relative to controls. Compaction significantly reduced tillering and crown expansio...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/BF00377574
更新日期:1987-06-01 00:00:00
abstract::Growth and reproduction of twoDaphnia species (Cladocera) from Lake Constance were measured experimentally in a through-flow laboratory system under different food conditions, in order to investigate the effect of food quality on zooplankton populations. The cryptomonadRhodomonas sp. and the diatomStephanodiscus hantz...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/BF00634599
更新日期:1991-09-01 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::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
pub_type: 杂志文章
doi:10.1007/BF00333247
更新日期:1995-05-01 00:00:00
abstract::The field thermal biology of sympatric Anolis cooki and A. cristatellus were evaluated in January and in August in desert scrub forest at Playa de Tamarindo near Guanica, Puerto Rico. Data on randomly positioned copper models of lizards, each equipped with a built-in thermocouple, established null hypotheses about bas...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/BF00317818
更新日期:1992-04-01 00:00:00
abstract::Multiple studies have examined the effects of clouds on shoot and canopy-level microclimate and physiological processes; none have yet done so on the scale of individual plant crowns. We compared incident photosynthetically active radiation (PAR), leaf temperatures, chlorophyll fluorescence, and photosynthetic gas exc...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/s00442-016-3799-7
更新日期:2017-03-01 00:00:00
abstract::Recently, community ecology has emphasized the multi-facetted aspects of biological diversity by linking species traits and the environment. Here, we explored environmental correlates of taxonomically-based and traits-based compositional distances using a comprehensive data set of diatom and macroinvertebrate communit...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/s00442-019-04535-5
更新日期:2019-12-01 00:00:00
abstract::Predators have far-reaching effects on communities by triggering top-down trophic cascades that influence ecosystem functioning. Omnivory and intraguild interactions between predators give rise to reticulate food webs and may either strengthen or dampen trophic cascades depending on context. Disentangling the effects ...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/s00442-015-3442-z
更新日期:2016-01-01 00:00:00
abstract::The extent, frequency and causes of pollenlimited seed production were examined in partially selffertile populations of Blandfordia grandiflora for 2 years. Percentage seed set of open-pollinated plants (50-57%) did not differ within or between years, and was about 19% less than experimentally cross-pollinated plants ...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/BF00328430
更新日期:1995-07-01 00:00:00
abstract::In the eight Pardosa species studied, aerial dispersal occurs generally in the young instars. The climatic conditions, particularly wind but also temperature and humidity, affect the occurrence of aerial dispersal. Within the different systematic groups in the genus, species with relatively high and relatively low dis...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/BF00344884
更新日期:1970-09-01 00:00:00
abstract::In tropical rain forests of Central America, the canopy tree Dipteryx panamensis (Papilionaceae) fruits when overall fruit biomass is low for mammals. Flying and arboreal consumers feed on D. panamensis and drop seeds under the parent or disperse them farther away. Seeds on the ground attract many vertebrate seed-eate...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/BF00341325
更新日期:1993-05-01 00:00:00
abstract::Predation pressure and resource availability often interact in structuring herbivore communities, with their relative influence varying in space and time. The operation of multiple ecological pressures and guild-specific herbivore responses may combine to override simple predictions of how the roles of plant quality a...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/s00442-010-1750-x
更新日期:2010-12-01 00:00:00
abstract::The responses of organisms to organic farming depend on the taxonomic group and landscape complexity. Following the intermediate landscape complexity hypothesis, organic farming can compensate for the lack of complexity in simple landscapes. Argentinian farmlands are simple with large fields and scarce linear habitat ...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/s00442-019-04545-3
更新日期:2019-12-01 00:00:00