Abstract:
:Nectar plant utilization by butterflies was compared with the abundance of flowering plants on some SW Swedish meadows. The transportation of pollen grains by individual butterflies was analysed using a scanning electron microscope.For the majority of plant species, butteflies were of minor importance as pollinators. Some flowers with protruding sexual organs, e.g. Knautia arvensis, when heavily utilized by butterflies, might also be pollinated by these.For Dianthus deltoides and Viscaria vulgaris, butterfly pollination was found to be important.Several butterfly species, e.g. Plebicula amanda, visited legumes regularly. In spite of this, legume pollen was rarely transported by the butterflies. This suggests these butterflies act as nectar robbers among the legumes.
journal_name
Oecologiajournal_title
Oecologiaauthors
Jennersten Odoi
10.1007/BF00379789subject
Has Abstractpub_date
1984-07-01 00:00:00pages
80-89issue
1eissn
0029-8549issn
1432-1939pii
10.1007/BF00379789journal_volume
63pub_type
杂志文章相关文献
OECOLOGIA文献大全abstract::The period between oviposition and the start of hatching varied from about 17 weeks at 3°C to about 1 week at 22°C, and the length of the hatching period varied from about 34 days at 3°C to about 3 days at 22°C. Regression equations are provided to estimate the lengths of both periods at all temperatures between 3°C a...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/BF00345242
更新日期:1972-03-01 00:00:00
abstract::Small marine invertebrates often use sessile organisms as microhabitats, which can provide food sources and/or serve as refugees from predators. Because of the availability of external food items such as epibionts and detritus in the marine environment, these invertebrates may not depend on the sessile organisms as so...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/s00442-007-0941-6
更新日期:2008-04-01 00:00:00
abstract::Activity of soil decomposer microorganisms is generally limited by carbon availability, but factors controlling saprophagous soil animals remain largely unknown. In contrast to microorganisms, animals are unable to exploit mineral nutrient pools. Therefore, it has been suggested that soil animals, and earthworms in pa...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/s00442-003-1391-4
更新日期:2004-01-01 00:00:00
abstract::Nitrogen deposition in the northeastern US changed N availability in the latter part of the twentieth century, with potential legacy effects. However, long-term N cycle measurements are scarce. N isotopes in tree rings have been used as an indicator of N availability through time, but there is little verification of w...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/s00442-019-04528-4
更新日期:2019-12-01 00:00:00
abstract::Biotic assemblages of insular habitats are nested when poor assemblages are subsets of richer ones. Nestedness of species assemblages is frequent and may result from selective extinction or frequent colonization in insular habitats. It may also be created by a nested distribution of habitats among islands or by sampli...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/s004420050737
更新日期:1999-03-01 00:00:00
abstract::The effect of tree canopy, understory, herbivores, and litter depth on seedling establishment, survival, and reproduction of the alien grass, Bromus tectorum (cheatgrass), was examined in a series of experiments in four forest habitat types in western North America. Higher recruitment, survival, and reproduction on cl...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/BF00328170
更新日期:1990-10-01 00:00:00
abstract::Freezing tolerance as a cold resistance mechanism is described for the first time in a plant growing in the tropical range of the Andean high mountains. Draba chionophila, the plant in which freezing tolerance was found, is the vascular plant which reaches the highest altitudes in the Venezuelan Andes (approximately 4...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/BF00378830
更新日期:1988-02-01 00:00:00
abstract::Anthropogenic disturbance can have important indirect effects on ecosystems by disrupting species interactions. Here we examine the effects of anthropogenic disturbance on distance dispersal by ants for the diaspores of myrmecochorous Euphorbiaceae in Brazilian Caatinga. Rates of diaspore removal and distances removed...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/s00442-013-2740-6
更新日期:2014-01-01 00:00:00
abstract::Six estimates of resource allocation to sexual reproduction (nectar concentration, nectar volume, sugar production, pollinator visitation rates, fruit-set, and seed production) and a single estimate of resource allocation to asexual reproduction (the rate of rooted-branch production) were examined for five species of ...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/BF00377025
更新日期:1988-08-01 00:00:00
abstract::Ovipositing females of the cynipid waspPseudeucoila bochei discriminate between parasitized and unparasitized hosts, which results in a far more uniform distribution of eggs over the hosts than would be obtained if oviposition were random (Fig. 1,a 0-f 0).For the description of the distributions a few models were work...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/BF00822760
更新日期:1972-03-01 00:00:00
abstract::Seed predation and seed dispersal can have strong effects on early life history stages of plants. These processes have often been studied as individual effects, but the degree to which their relative importance co-varies with seed predator abundance and how this influences seed germination rates is poorly understood. ...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/s00442-009-1542-3
更新日期:2010-04-01 00:00:00
abstract::Determining how environmental conditions interact with individual intrinsic properties is important for unravelling the underlying mechanisms that drive variation in reproductive decisions among migratory species. We investigated the influence of sea ice conditions and body condition at arrival on the breeding propens...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/s00442-017-4002-5
更新日期:2018-01-01 00:00:00
abstract::The influence of short- and long-term (cohort) effects of climate and density on the life-histories of ungulates in temperate regions may vary with latitude, habitat, and management practices, but the life-histories of ungulates in the Mediterranean region are less well known. This study examined the short- and long-t...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/s00442-010-1663-8
更新日期:2010-10-01 00:00:00
abstract::Trirhabda bacharidis (Weber) (Chrysomelidae), a univoltine, monophagous beetle is the dominant herbivore on Baccharis halimifolia (Compositae), a woody, perennial shrub that leafs out in early spring and retains its leaves into November. Available plant biomass increases during the season but T. bacharidis feeds only ...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/BF00363829
更新日期:1982-02-01 00:00:00
abstract::Plasticity in life history strategies can be advantageous for species that occupy spatially or temporally variable environments. We examined how phenotypic plasticity influences responses of the mole salamander, Ambystoma talpoideum, to disturbance events at the St. Marks National Wildlife Refuge (SMNWR), FL, USA from...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/s00442-017-3810-y
更新日期:2017-03-01 00:00:00
abstract::To date, coral death has been the most conspicuous outcome of warming tropical seas, but as temperatures stabilize at higher values, the consequences for the corals remaining will be mediated by their demographic responses to the sub-lethal effects of temperature. To gain insight into the nature of these responses, he...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/s00442-005-0210-5
更新日期:2005-12-01 00:00:00
abstract::Competition for water surface prey between fish (Priapichtus annectens: Poeciliidae) and water striders (Potamobates unidentatus: Gerridae) was studied in the laboratory and in pools in a small tropical stream. Laboratory experiments showed that fish depressed activity and foraging success of water striders. Large fis...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/BF00317841
更新日期:1992-12-01 00:00:00
abstract::Northern hemispheric background concentrations of ozone are increasing, but few studies have assessed the ecological significance of these changes for grasslands of high conservation value under field conditions. We carried out a 3-year field experiment in which ozone was released at a controlled rate over three exper...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/s00442-011-2154-2
更新日期:2012-04-01 00:00:00
abstract::Coryphantha vivipara (Nutt.) Britton & Rose var. deserti (Engelm.) W.T. Marshall (Cactaceae) survived snow and tissue temperatures of-12°C in southern Nevada. However, the freezing point depression of the cell sap was only about 0.9°C. When the nocturnal air temperature in the laboratory was reduced from 10°C to-10°C ...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/BF00347964
更新日期:1981-03-01 00:00:00
abstract::The palatability of 14 species of woody plant was assessed for three species of browsing ruminant, namely kudus, impalas and goats. Results show that palatability was most clearly related to leaf contents of condensed tannins. The effect was a threshold one, with all plants containing more than 5% condensed tannins be...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/BF00378466
更新日期:1985-08-01 00:00:00
abstract::Life history theory and empirical studies suggest that large size or earlier metamorphosis are suitable proxies for increased lifetime fitness. Thus, across a gradient of larval habitat quality, individuals with similar phenotypes for these traits should exhibit similar post-metamorphic performance. Here we examine th...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/s00442-010-1728-8
更新日期:2010-12-01 00:00:00
abstract::In long-lived colonial birds, age at recruitment is an important life-history character. Variation in this parameter may reflect differences in several factors, including competitive ability and breeding strategies. Further, these differences may be due to timing of hatching (for instance through differences in compet...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/s004420000564
更新日期:2001-03-01 00:00:00
abstract::Intraspecific positive relationships between abundance and occupancy are observed for many species, suggesting that the same processes drive local and regional species dynamics. Two main groups of mechanisms explain this relationship: spatiotemporal variation in local population growth rates due to variation in habita...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/s00442-010-1752-8
更新日期:2011-03-01 00:00:00
abstract::For organisms that exhibit complex life cycles, resource conditions experienced by individuals before metamorphosis can strongly affect phenotypes later in life. Such resource-induced effects are known to arise from variation in resource quantity, yet little is known regarding effects stemming from variation in resour...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/s00442-015-3387-2
更新日期:2015-11-01 00:00:00
abstract::Although cascading effects of top predators can help structure communities, their influence may vary across habitats that differentially protect prey. Therefore, to understand how and to what degree habitat complexity can affect trophic interactions in adjacent habitats, we used a combination of a broad regional-scale...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/s00442-017-3928-y
更新日期:2017-09-01 00:00:00
abstract::In the "Solling-Projekt" (IBP) of the "Deutsche Forschungsgemeinschaft" the decomposition of different qualities of leaves in acid soil (Solling) and in lime soil (Göttinger Wald) was studied under various conditions (October 1973-October 1974).Plastic rings were used as litter bags in the following way: on the bottom...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/BF00345418
更新日期:1977-06-01 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::The enemies hypothesis states that reduced insect herbivory in mixed-species stands can be attributed to more effective top-down control by predators with increasing plant diversity. Although evidence for this mechanism exists for invertebrate predators, studies on avian predation are comparatively rare and have not e...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/s00442-015-3391-6
更新日期:2016-03-01 00:00:00
abstract::Assembly rules provide a useful framework for predicting patterns of community assembly under defined environmental conditions. Habitat created by canopy-forming algae (such as kelps) provides a promising system for identifying assembly rules because canopies typically have a large and predictable influence on underst...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/s00442-006-0389-0
更新日期:2006-06-01 00:00:00
abstract::We examined the effects of intraguild predation (IGP) and interference competition on an endangered dragonfly, Aeshna viridis Eversm. (Odonata: Anisoptera). A. viridis is rare in Europe due to the decrease in suitable habitats harboring the macrophyte Stratiotes aloides L. Stratiotes plants are the principal ovipositi...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/s00442-004-1559-6
更新日期:2004-06-01 00:00:00