Abstract:
:Indirect interactions among plant species mediated by frugivorous animals can be central to population and community dynamics, since the successful seed dispersal of species may depend on facilitative or competitive interactions with heterospecific plants. Yet, empirical evidence on these interactions is very scarce and mostly available at small spatial scales, within populations. Because lipid-rich fruits are known to be preferred by migratory birds, here we test our prediction of competitive inferiority of a carbohydrate-rich fruited species (the hawthorn Crataegus monogyna) compared to lipid-rich co-fruiting species in a Mediterranean region where the bulk of seed dispersal relies on migratory birds. We assessed avian seed dispersal in both relative (fruit removal rate) and absolute terms (seed dispersal magnitude) in seven hawthorn populations distributed across an altitudinal gradient encompassing three contrasting fruiting contexts: hawthorn is scarce in the lowlands, common in the midlands, and the dominant fruit species in the highlands. We found evidence of seed dispersal reduction due to interspecific competition in the lowland populations, where lipid-rich fruits dominate. Besides, DNA barcoding analysis of bird-dispersed seeds revealed that only a small subset of the local frugivore assemblages consumed hawthorn fruits in the lowland communities. Instead, the consumers of hawthorn fruits resembled the local frugivore assemblages where hawthorn fruits were more dominant and frugivore choices more limited. Our study suggests mechanisms by which the rarity or dominance of plant species might be jointly influenced by environmental constraints (here, precipitation along the altitudinal gradient) and frugivore-mediated indirect interactions among plants hindering or facilitating seed dispersal.
journal_name
Oecologiajournal_title
Oecologiaauthors
Rumeu B,Álvarez-Villanueva M,Arroyo JM,González-Varo JPdoi
10.1007/s00442-019-04434-9subject
Has Abstractpub_date
2019-07-01 00:00:00pages
605-617issue
3eissn
0029-8549issn
1432-1939pii
10.1007/s00442-019-04434-9journal_volume
190pub_type
杂志文章相关文献
OECOLOGIA文献大全abstract::Herbivores decrease plant fitness by consuming reproductive tissues, limiting resources, and/or affecting mutualisms. Although these mechanisms were extensively tested in chewing herbivores, the impact of other functional groups (e.g., sap-feeders) remains poorly understood. We investigated whether aphids affect plant...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/s00442-020-04712-x
更新日期:2020-11-01 00:00:00
abstract::Ecological systems have naturally high interannual variance in phenology. Component species have presumably evolved to maintain appropriate phenologies under historical climates, but cases of inappropriate phenology can be expected with climate change. Understanding controls on phenology permits predictions of ecologi...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/s00442-010-1789-8
更新日期:2011-01-01 00:00:00
abstract::I suggest that between-community variations in diversity patterns during succession in plant communities are due to the effects of selection on life history strategies under different disturbance regimes. Natural disturbances to plant communities are simultaneously a source of mortality for some individuals and a sour...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/BF00346960
更新日期:1980-07-01 00:00:00
abstract::A key question in savanna ecology is how trees and grasses coexist under N limitation. We used N stable isotopes and N content to study N source partitioning across seasons from trees and associated grasses in a semi-arid savanna. We also used (15)N tracer additions to investigate possible redistribution of N by trees...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/s00442-013-2848-8
更新日期:2014-04-01 00:00:00
abstract::Successful reproduction in a seasonal environment can be accomplished with resources that are stored before use ("capital resources") or resources that are used immediately ("income resources"). Research examining capital versus income resource usage during reproduction has primarily focused on assigning species to po...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/s00442-013-2699-3
更新日期:2013-12-01 00:00:00
abstract::Gas exchange measurements of two arctic tundra plants, Dupontia fischeri and Carex aquatilis, and two alpine tundra species, Deschampsia caespitosa and Geum rossii, were conducted under a range of atmospheric and soil moisture stress conditions to determine if photosynthetic adaptations to water stress may play a role...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/BF00345552
更新日期:1975-06-01 00:00:00
abstract::Carbon dioxide efflux and soil microenvironmental factors were measured diurnally in Carex aquatilus-and Eriophorum angustifolium-dominated riparian tundra communities to determine the relative importance of soil environmental factors controlling ecosystem carbon dioxide exchange with the atmosphere. Measurements were...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/BF00317851
更新日期:1992-12-01 00:00:00
abstract:: Field phenologies of high- (ca. 1500 m) and low- (ca. 500 m) altitude populations of the two most common European species of dung flies, Scathophaga stercoraria and Sepsis cynipsea, differ quite markedly due to differences in climate. To differentiate genetic adaptation due to natural selection and phenotypic plastic...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/s004420050092
更新日期:1997-02-01 00:00:00
abstract::Two atlantic voyages were made by the FS Meteor during which pollen and spores were collected from the air. In the course of 32 days the average pollen content was 29/100 m3 air, the average spore content came to 5x104/100 m3 air. Both voyages occurred in late autumn. On the trip from Hamburg to the Azores the spore c...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/BF00345425
更新日期:1975-09-01 00:00:00
abstract::A comparison of photosynthetic adaptations of desert ephemerals from sun and shade environments has shown differences in the magnitude and timing of maximum CO2 assimilation. Photosynthetic rates of species from the sun environment were significantly higher, and maximum observed levels occurred both earlier in the day...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/BF00344653
更新日期:1981-10-01 00:00:00
abstract::Declines in density of one natural, three artificially-seeded and eight experimental populations of Anadara granosa were monitored over periods ranging from seven to twelve months. For three of four large populations the decline in density has been adequately described by a model of the form N t=N 0·e zt where N t is ...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/BF00385241
更新日期:1983-06-01 00:00:00
abstract::This paper considers prey size selection by four molluscivorous cichlids feeding on the intermediate host snail of Schistosoma parasites, Biomphalaria glabrata. Haplochromis ishmaeli obtains its prey by crushing the snails between the pharyngeal jaws, whereas H. xenognathus, H. sauvagei and Macropleurodus bicolor appl...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/BF00379359
更新日期:1987-12-01 00:00:00
abstract::In this paper we test three plant species for the inducibility of their alkaloid production. The plants were heavily damaged by cutting off 50% of their leaf surface using a pair of scissors. The cut-off leaf tips were used as controls for possible diurnal fluctuations. After 3, 6, 12, 24 and 48 h, respectively, the l...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/BF00320998
更新日期:1993-09-01 00:00:00
abstract::The Alexander Archipelago wolf (Canis lupus ligoni) is unique to southeast Alaska, occurring on islands south of Frederick Sound and along the mainland between Dixon Entrance and Yakutat Bay. Sitka black-tailed deer (Odocoileus hemionus sitkensis) are an important prey species for wolves across the southern part of th...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/s004420050866
更新日期:1999-08-01 00:00:00
abstract::Cladoceran hatching frequency can easily be calculated from observed egg age distribution and estimated egg development time. The large timelag errors of models incorporating birth rates in the equation are avoided, and the population growth rate can be estimated directly. ...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/BF00379525
更新日期:1983-11-01 00:00:00
abstract::Proteolytic activity in the gut contents of two cichlids and six cyprinids from an artificial basin in Sri Lanka was measured using a simple film strip method. This comparative study contributes to our general knowledge of digestion in herbivorous fish: 1) Specific proteolytic activity (per ml of gut content) is lower...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/BF00346492
更新日期:1981-03-01 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::Changing environments can have divergent effects on biodiversity-ecosystem function relationships at alternating trophic levels. Freshwater mussels fertilize stream foodwebs through nutrient excretion, and mussel species-specific excretion rates depend on environmental conditions. We asked how differences in mussel di...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/s00442-011-2110-1
更新日期:2012-02-01 00:00:00
abstract::The thermoregulatory significance of a striped-melanic colour polymorphism in the common garter snake, Thamnophis sirtalis, was assessed through a combination of labortory experimentation and field study. In experiments with living snakes the melanic morph maintained a higher body temperature than the striped morph, w...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/BF00346675
更新日期:1979-10-01 00:00:00
abstract::1. The locomotor activity of European salamanders differs from species to species. At all stages of development Triturus vulgaris is more light-active, Salamandra salamandra is dark-active, while Triturus alpestris and cristatus occupy an intermediate position. 2. The activity of the larvae is high but the rhythm is n...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/BF00345813
更新日期:1971-06-01 00:00:00
abstract::Climate change has been shown to affect the timing of reproduction, with earlier reproduction being associated with an increase in temperature. Changes in the timing of reproduction arise from changes in food availability as well as other factors, and differences in the timing of reproduction among sites may cause sit...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/s00442-007-0944-3
更新日期:2008-04-01 00:00:00
abstract::The influence of irrigation and nitrogen fertilization in early summer on root and shoot growth of Atriplex confertifolia, a C4 shrub species, was examined in a cold-winter desert community in northern Utah. Soil water and xylem pressure potentials were monitored during the summer period.At the time of watering the su...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/BF00344912
更新日期:1978-01-01 00:00:00
abstract::Terpenoid emissions from ponderosa pine (Pinus ponderosa subsp. scopulorum) were measured in Colorado, USA over two growing seasons to evaluate the role of incident light, needle temperature, and stomatal conductance in controlling emissions of 2-methyl-3-buten-2-ol (MBO) and several monoterpenes. MBO was the dominant...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/s00442-014-3008-5
更新日期:2014-09-01 00:00:00
abstract::The distribution and movements of two stoat populations were studied by capture-recapture and tracking in the Swiss Jura Mountains. On the Brévine area in summer 1977 the population was at a high density phase and evenly distributed. A well established intrasexual territorial system was observed, with a high degree of...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/BF00388075
更新日期:1983-08-01 00:00:00
abstract::We tested the hypothesis that leaves of broad-leaved tree species are more highly defended at low latitudes than at high latitudes. We used canonical discriminant analysis to compare tree species from Panama (9°N, 39 species), Missouri, USA (38°N, 37 species), and southern Ontario, Canada (44°N, 34 species) with respe...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/s00442-012-2249-4
更新日期:2012-07-01 00:00:00
abstract::The impacts of climatic change on organisms depend on the interaction of multiple stressors and how these may affect the interactions among species. Consumer-prey relationships may be altered by changes to the abundance of either species, or by changes to the per capita interaction strength among species. To examine t...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/s00442-013-2683-y
更新日期:2013-11-01 00:00:00
abstract::Seedlings of six subtropical rainforest tree species representing early (Omalanthus populifolius, Solanum aviculare), middle (Duboisia myoporoides, Euodia micrococca) and late (Acmena ingens, Argyrodendron actinophyllum) successional stages in forest development were grown in a glasshouse, under four levels of neutral...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/BF00323788
更新日期:1991-06-01 00:00:00
abstract::The effects of irradiance during growth on biomass allocation, growth rates, leaf chlorophyll and protein contents, and on gas exchange responses to irradiance and CO2 partial pressures of the evergreen, sclerophyllous, chaparral shrub, Ceanothus megacarpus were determined. Plants were grown at 4 irradiances for the g...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/BF00379995
更新日期:1982-09-01 00:00:00
abstract::One explanation for long-term fluctuations in population density is that the intensity of interactions between species is variable. A population can experience variation in the intensity of a species interaction if (1) the density of species with which it directly interacts changes and/or (2) the strength of the inter...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/s004420050788
更新日期:1999-05-01 00:00:00
abstract::In order to test the role of disturbance and the effects of disturbance frequency on stream communities, an experiment was conducted in New Hope Creek, North Carolina, USA. Patches of cobbles were tumbled 0, 1 or 2 times in a 6 week span. These tumbling disturbances lasted only 30 seconds. The recovery of the macroinv...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/BF00378456
更新日期:1985-08-01 00:00:00