Abstract:
:The structure and seasonal dynamics of phytoplankton communities in the littoral zone were compared between oligotrophic and eutrophic lakes in the southeastern United States. Differences in diversity and species composition between lakes could be ascribed to long-term variation in nutrients corresponding to trophic status. However, significant within-lake variation could not be accounted for by microstratification of nutrients or other abiotic variables. Local biotic factors, perhaps dominated by the spawning activities of centrarchid fishes, resuspend periphyton and generate tychoplankton which becomes a persistent and integral part of the phytoplankton community in eutrophic systems. The patchy distribution of these biotic factors and resultant tychoplankton may lead to the observed variation. Grazing by herbivorous zooplankton was considered to be the major factor affecting the relative abundance of phytoplankton in the littoral zone, completely overriding the effects of nutrient concentration and biotic interactions between phytoplankton species during spring and summer.The relative importance of tychoplankton and grazing as regulatory factors operates independently of the trophic status or geographical location of a lake, making comparisons of different studies difficult and perhaps meaningless if traditional analyses based only on nutrients and interactions between species of phytoplankton are used. Limnetic as well as littoral components must be considered in future studies of phytoplankton communities in the littoral zone.
journal_name
Oecologiajournal_title
Oecologiaauthors
Lemly AD,Dimmick JFdoi
10.1007/BF00380005subject
Has Abstractpub_date
1982-09-01 00:00:00pages
359-369issue
3eissn
0029-8549issn
1432-1939pii
10.1007/BF00380005journal_volume
54pub_type
杂志文章相关文献
OECOLOGIA文献大全abstract::There is an increasing ecological interest in understanding the gradients in H(2)(18)O enrichment in leaf water (i.e. a Péclet effect), because an appreciation of the significance of the Péclet effect is important for improving our understanding of the mechanistic processes affecting the (18)O composition of leaf wate...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/s00442-003-1449-3
更新日期:2004-02-01 00:00:00
abstract::Although numerous studies have reported reproductive senescence in wild animal populations, we still know very little on inter-individual differences in rates of ageing and on the factors accounting for these differences. To investigate age-related variation in breeding success in a natural population of Alpine chamoi...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/s00442-014-3197-y
更新日期:2015-05-01 00:00:00
abstract::Populations with dispersive larvae are often demographically open such that local reproduction and subsequent larval settlement are not linked. Thus, understanding whether and how settlement patterns are established and subsequently modified is central to understanding local demography. Settlement is typically not mea...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/s00442-001-0860-x
更新日期:2002-03-01 00:00:00
abstract::Two primarily granivorous rodents of Old World deserts,Gerbillus allenbyi (mean adult body mass=26 g) andG. pyramidum (mean adult body mass=40 g), coexist in sandy habitats in the northwestern Negev desert. Both species are burrow dwellers and are nocturnal; however, in their overall distributions,G. pyramidum occurs ...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/BF01875454
更新日期:1992-07-01 00:00:00
abstract::As an extension of earlier investigations, the mating calls ofHyla arborea kretensis, Hyla a. molleri, andHyla a. sarda were studied, and variations in the calls with air temperature were determined. The mating calls of these species exhibit the typical structure, made up of short pulses of varying amplitude. The call...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/BF00344901
更新日期:1974-03-01 00:00:00
abstract::The use of habitat by female and male adult capercaillie Tetrao urogallus during summer and autumn was studied by comparing the distribution of radio locations of birds with the availability of habitat at forest stand, home range and landscape level in an area of the Bavarian Alps, Germany. Capercaillie preferred fore...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/BF00323498
更新日期:1993-08-01 00:00:00
abstract::No-take marine reserves (NTMRs) provide hope that local carrying capacity may be partially restored if reserves are protected long enough. How long is long enough? We assess the duration of protection required for populations of large predatory reef fish in marine reserves to attain new steady states. We monitored bio...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/s00442-010-1692-3
更新日期:2010-08-01 00:00:00
abstract::Increases in terrestrial primary productivity across the Arctic and northern alpine ecosystems are leading to altered vegetation composition and stature. Changes in vegetation stature may affect predator-prey interactions via changes in the prey's ability to detect predators, changes in predation pressure, predator id...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/s00442-015-3240-7
更新日期:2015-07-01 00:00:00
abstract::Theoretical predictions from a simulation model of insect distributions and dispersal among isolated food plants have been tested with data gathered from 13 Cinnabar moth populations. Agreement with the predictions was good. Egg batch size was equal to or slightly larger than the number which could be supported by the...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/BF00545484
更新日期:1976-03-01 00:00:00
abstract::As primary producers, plants are known to influence higher trophic interactions by initiating food chains. However, as architects, plants may bypass consumers to directly affect predators with important but underappreciated trophic ramifications. Invasion of western North American grasslands by the perennial forb, spo...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/s00442-008-1241-5
更新日期:2009-03-01 00:00:00
abstract::Fruiting phenology and pattern of fruit removal of two shrubby dogwoods were examined in relation to fruit composition. It was predicted that fruit of the species bearing high fat fruit would disappear more rapidly and fall to the ground sooner than fruit of the species bearing low fat fruit. Field observation at two ...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/BF00384952
更新日期:1985-10-01 00:00:00
abstract::In this study we examine the influence of temperature on growth, photosynthetic performance and acclimation of two submerged macrophyte species, Elodea canadensis L.C. Rich and Ranunculus aquatilis (L.) Wimmer. The plants were grown at 5, 10 and 15°C and a photon flux density of 300 μmol m-2 s-1 (PAR) in a medium with...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/s004420050165
更新日期:1997-04-01 00:00:00
abstract::In mutualistic interactions, partners obtain a net benefit, but there may also be costs associated with the provision of benefits for a partner. The question of whether aphids suffer such costs when attended by ants has been raised in previous work. Transgenerational effects, where offspring phenotypes are adjusted ba...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/s00442-013-2659-y
更新日期:2013-11-01 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
pub_type: 杂志文章
doi:10.1007/s00442-011-2203-x
更新日期:2012-06-01 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::Perennial species have evolved several strategies to survive fire, with resprouters and seeders forming two major categories. Gompholobium marginatum is a herbaceous seeder legume occurring in the Western Australian jarrah (Eucalyptus marginata) forest which since 1961 has been subjected to burns every sixth year. Suc...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/BF00317172
更新日期:1992-05-01 00:00:00
abstract::It is widely recognized that pollinators vary in their effectiveness in pollination mutualisms, due both to differences in flower-pollinator morphological fit as well as pollinator behaviour. However, pollination webs typically treat all interactions as equal, and we contend that this method may provide misleading res...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/s00442-011-2084-z
更新日期:2012-01-01 00:00:00
abstract::Twospotted spider mites, Tetranychus urticae Koch are arrhenotokous. As a result of this genetic structure, primary and secondary sex ratios diverge from the 1:1 female:male ratio commonly found in diploid systems. Ratios vary, but 3:1 is the most common. The influence of life history parameters on spider mite sex rat...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/BF00317492
更新日期:1990-03-01 00:00:00
abstract::A search for desiccation tolerant grasses in India revealed nine grass species (in the genera Eragrostiella, Oropetium and Tripogon) whose ability to recover from airdryness had not previously been reported. Dry leaves of these species recover uninjured within 24 h of plants receiving water. Desiccation tolerance limi...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/BF00377337
更新日期:1986-12-01 00:00:00
abstract::Many tropical regions show one distinct dry season. Often, this seasonality induces cambial dormancy of trees, particularly if these belong to deciduous species. This will often lead to the formation of annual rings. The aim of this study was to determine whether tree species in the Bolivian Amazon region form annual ...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/s00442-005-0160-y
更新日期:2005-11-01 00:00:00
abstract::Most animals metamorphose, changing morphology, physiology, behavior and ecological interactions. Size- and habitat-dependent mortality risk is thought to affect the evolution and plastic expression of metamorphic timing, and high predation during the morphological transition is posited as a critical selective force s...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/s00442-013-2714-8
更新日期:2013-11-01 00:00:00
abstract::In a Danish heathland invasion of oak shrub has taken place, the succession rate being approximately 300 m during the last 100 years. The colonisation has occurred in steps related to the delay time between seedling stage and fertility stage. Seedlings are often found in clusters originating from caches probably made ...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/BF00379242
更新日期:1986-09-01 00:00:00
abstract::Estimates were made of the ecological fish production in two small lowland rivers uninhabited by salmonids. Eight sites were examined in the Utrata River drainage basin, and five in the Zalewka Brook. Nets were placed at the upper and lower limits of each site and fish were captured using electrofishing apparatus; at ...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/BF00346995
更新日期:1981-02-01 00:00:00
abstract::Predators can alter the outcome of ecological interactions among other members of the food web through their effects on prey behavior. While it is well known that animals often alter their behavior with the imposition of predation risk, we know less about how other features of predators may affect prey behavior. For e...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/s004420050724
更新日期:1999-02-01 00:00:00
abstract::Studies focused on how prey trade-off predation and starvation risk are prevalent in behavioral ecology. However, our current understanding of these trade-offs is limited in one key respect: we know little about the behavior of predators. In this study, we provide some of the first detailed information on temporal pat...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/s00442-006-0638-2
更新日期:2007-05-01 00:00:00
abstract::Research on winter energy management in small vertebrates has focused on the regulation of body mass (BM) within a framework of starvation-predation trade-off. Winter-acclimatized birds exhibit a seasonal increase in both BM and basal metabolic rate (BMR), although the patterns of co-variation between the two traits r...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/s00442-018-04332-6
更新日期:2019-02-01 00:00:00
abstract::Seven North American moss species responded differentially to fumigations with sulfur dioxide ranging from 0.5 to 4.0 ppm. Leucobryum glaucum and Dicranum scoparium were the most sensitive species; Dicranella heterophylla, Polytrichum ohioense and Pottia truncata, the most resistant. The results of fumigations with 0....
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/BF00344925
更新日期:1974-09-01 00:00:00
abstract::A large number of herbaceous and woody plants from tropical woodland, savanna, and monsoon forest were analysed to determine the impact of environmental factors (nutrient and water availability, fire) and biological factors (microbial associations, systematics) on plant delta(15)N values. Foliar delta(15)N values of h...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/s00442-002-1150-y
更新日期:2003-03-01 00:00:00
abstract::Morphological relationships change with overall body size and body size often varies among populations. Therefore, quantitative analyses of individual traits from organisms in different populations or environments (e.g., in studies of phenotypic plasticity) often adjust for differences in body size to isolate changes ...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/s00442-006-0403-6
更新日期:2006-07-01 00:00:00
abstract::The responses of Polygonum pensylvanicum L., an early successional annual, and of Polygonum virginianum L., a late successional perennial, were examined along discontinuous gradients of soil moisture, light and nutrient availability. In the case of P. virginianum both individuals grown from seed and individuals grown ...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/BF00378779
更新日期:1986-03-01 00:00:00