Abstract:
:Recent research has shown that many mutualistic communities display non-random structures. While our understanding of the structural properties of mutualistic communities continues to improve, we know little of the biological variables resulting in them. Mutualistic communities include those formed between ants and extrafloral (EF) nectar-bearing plants. In this study, we examined the contributions of plant and ant abundance, plant and ant size, and plant EF nectar resources to the network structures of nestedness and interaction frequency of ant-plant networks across five sites within one geographic locality in the Sonoran Desert. Interactions between ant and plant species were largely symmetric. That is, ant and plant species exerted nearly equivalent quantitative interaction effects on one another, as measured by their frequency of interaction. The mutualistic ant-plant networks also showed nested patterns of structure, in which there was a central core of generalist ant and plant species interacting with one another and few specialist-specialist interactions. Abundance and plant size and ant body size were the best predictors of symmetric interactions between plants and ants, as well as nestedness. Despite interactions in these communities being ultimately mediated by EF nectar resources, the number of EF nectaries had a relatively weak ability to explain variation in symmetric interactions and nestedness. These results suggest that different mechanisms may contribute to structure of bipartite networks. Moreover, our results for ant-plant mutualistic networks support the general importance of species abundances for the structure of species interactions within biological communities.
journal_name
Oecologiajournal_title
Oecologiaauthors
Chamberlain SA,Kilpatrick JR,Holland JNdoi
10.1007/s00442-010-1673-6subject
Has Abstractpub_date
2010-11-01 00:00:00pages
741-50issue
3eissn
0029-8549issn
1432-1939journal_volume
164pub_type
杂志文章相关文献
OECOLOGIA文献大全abstract::Development of ornamental characters exposed to directional selection may be particularly sensitive to the effect of parasitic infections. Antlers are ornamental characters of importance in intraspecific interactions, and are in reindeer (Rangifer) developed by both males and females. By antihelmintic treatment of nat...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/BF00330020
更新日期:1996-03-01 00:00:00
abstract::The demographic variability and life history differentiation of two closely related shrubs (Atriplex canescens and A. acanthocarpa) were investigated in the Chihuahuan Desert, and the results were interpreted in the context of theories of coexistence in fluctuating environments. Demographic information was recorded du...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/s00442-008-0980-7
更新日期:2008-05-01 00:00:00
abstract::We compared prefledging growth, energy expenditure, and time budgets in the arctic-breeding red knot (Calidris canutus) to those in temperate shorebirds, to investigate how arctic chicks achieve a high growth rate despite energetic difficulties associated with precocial development in a cold climate. Growth rate of kn...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/s00442-002-1124-0
更新日期:2003-02-01 00:00:00
abstract::Plants of the cerrado tree species Qualea grandiflora and the annual herb Bidens gardneri were grown from seed in controlled environment rooms at 30/20° C and 12 hour photoperiod. Seedlings were grown in pots or small tubes containing sand and provided with various amounts of mineral solutions based on the formulation...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/BF00318536
更新日期:1990-01-01 00:00:00
abstract::Although the selective loss of individuals susceptible to disease can favor the evolution of female preference for older males, the interrelationship between age, infection, longevity, and mating success remains poorly characterized in natural populations. In a longitudinal study of 61 male common yellowthroats (Geoth...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/s00442-017-3919-z
更新日期:2017-08-01 00:00:00
abstract::Severe droughts may alter the reproductive phenology of tropical tree species, but our understanding of these effects has been hampered by confounded variation in drought, light and other factors during natural drought events. We used a large-scale experimental reduction of throughfall in an eastern-central Amazon for...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/s00442-006-0507-z
更新日期:2006-11-01 00:00:00
abstract::This paper investigates the effect of brood parasitism in a dung beetle assemblage in an arid region of Spain. The study was conducted during the spring season (March-May 1994-1998) using mesh cylinders buried into the ground, filled with sand and with sheep dung on top. We quantified the proportion of nests containin...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/s00442-002-1100-8
更新日期:2003-01-01 00:00:00
abstract::Future climate scenarios forecast a 10-50% decline in rainfall in Eastern Amazonia. Altered precipitation patterns may change important ecosystem functions like decomposition through either changes in physical and chemical processes or shifts in the activity and/or composition of species. We experimentally manipulated...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/s00442-018-4123-5
更新日期:2018-05-01 00:00:00
abstract::Corridors connect otherwise isolated habitat patches and can direct movement of animals among such patches. In eight experimental landscapes, we tested two hypotheses of how corridors might affect dispersal behavior. The Traditional Corridor hypothesis posits that animals preferentially leave patches via corridors, fo...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/s00442-005-0023-6
更新日期:2005-05-01 00:00:00
abstract::Fluorescent probes have been applied to study by epifluorescence microscopy interactions between species in an Anabaena flos-aquae association, derived from a freshwater community. Glycoconjugates (macromolecules containing carbohydrate residues) have been shown to play a vital role in recognition processes and in for...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/BF00399219
更新日期:1983-05-01 00:00:00
abstract::Ectomycorrhizal (EM) fungi form relationships with higher plants; plants transfer C to fungi, and fungi transfer nutrients to their host. While evidence indicates that this interaction is largely mutualistic, less is known about how nutrient supply and EM associates may alter C and nutrient exchanges, especially in in...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/s00442-013-2734-4
更新日期:2013-12-01 00:00:00
abstract::We contrasted the seasonal use of simulated large rain events (24 mm) by three native species of the arid Colorado Plateau: the perennial grass Hilaria jamesii and two shrubs Artemesia filifolia and Coleogyne ramosissima. Deuterium-enriched water was used to distinguish shallow "pulse" water from water in deeper soil ...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/s00442-001-0817-0
更新日期:2002-02-01 00:00:00
abstract::To improve the understanding of how native plant diversity influences invasion, we examined how population and community diversity may directly and indirectly be related to invasion in a natural field setting. Due to the large impact of the dominant C(4) grass species (Andropogon gerardii) on invasion resistance of ta...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/s00442-011-2157-z
更新日期:2012-04-01 00:00:00
abstract::CO2 assimilation in relation to light intensity and the relationship between leaf nitrogen and phosphorus concentrations and CO2 assimilation in 14 species of ecologically important Zimbabwean trees were examined. Eight of the species are members of the Fabaceae (Leguminosae). In the majority of Zimbabwean climax wood...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/BF00317582
更新日期:1991-11-01 00:00:00
abstract::For many amphibians, high temperatures and limited precipitation are crucial habitat characteristics that limit species ranges and modulate life-history characteristics. Although knowledge of the ability of amphibians to cope with such environmental harshness is particularly relevant in the light of ongoing environmen...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/s00442-015-3258-x
更新日期:2015-07-01 00:00:00
abstract::In resource-limited savannas, the distribution and abundance of fine roots play an important role in acquiring essential resources and structuring vegetation patterns and dynamics. However, little is known regarding the three-dimensional distribution of fine roots in savanna ecosystems at the landscape scale. We quant...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/s00442-018-4083-9
更新日期:2018-04-01 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::Synchronous leaf production has been proposed as a mechanism to reduce herbivore damage to young leaves by satiating herbivores. To test this hypothesis, I measured leaf production, leaf survivorship, and herbivore damage on juveniles of Gustavia superba (H.B.K.) Berg (Lecythidaceae), in two sites in Central Panama. L...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/BF00317713
更新日期:1991-12-01 00:00:00
abstract::Global climate change is expected to affect terrestrial ecosystems in a variety of ways. Some of the more well-studied effects include the biogeochemical feedbacks to the climate system that can either increase or decrease the atmospheric load of greenhouse gases such as carbon dioxide and nitrous oxide. Less well-stu...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/s00442-011-2133-7
更新日期:2012-03-01 00:00:00
abstract::We sought to understand differences in tree response to meteorological drought among species and soil types at two ecotone forests in northern Arizona, the pinyon-juniper woodland/ponderosa pine ecotone, and the higher elevation, wetter, ponderosa pine/mixed conifer ecotone. We used two approaches that provide differe...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/s00442-004-1585-4
更新日期:2004-07-01 00:00:00
abstract::The carabid beetle Nebria brevicollis (F.), despite being macropterous, has a very low flight potential. Only a few percent of the beetles has functional flight muscles, flight motivation is low, and the period favourable for flight is short. The inability to fly is caused mainly by arrested development of the flight ...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/BF00378974
更新日期:1987-07-01 00:00:00
abstract::Climate change is driving species range shifts worldwide. However, physiological responses related to distributional changes are not fully understood. Oceanographers have reported an increase in ocean temperature in the northwest Iberian Peninsula that is potentially related to the decline in some cold-temperate inter...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/s00442-012-2324-x
更新日期:2012-10-01 00:00:00
abstract::Trap-nesting bees and wasps (Hymenoptera Aculeata) colonizing crop and fallow fields in an agricultural landscape were studied using 20 sown fields (pea, barley, rye, clover-grass mixtures, Phacelia tanacetifolia) and 20 fields with naturally developed vegetation (1- and 2-year old fields, both mown and unmown, and ol...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/BF00326084
更新日期:1994-06-01 00:00:00
abstract::Plasticity in water-use efficiency (WUE) was examined in populations of Picea glauca (Moench) Voss and P. sitchensis (Bong.) Carr. and their natural hybrids from an ecocline along the Skeena Valley, British Columbia, which runs from the dry continental interior (P. glauca) to the wet maritime Pacific coast (P. sitchen...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/s004420100659
更新日期:2001-08-01 00:00:00
abstract::The effects of defoliation of alder (Alnus glutinosa) on subsequent herbivory by alder leaf beetle (Agelastica alni) were studied in ten alder stands in northern Germany. At each site, one tree was manually defoliated (c. 20% of total foliage) to simulate herbivory. Subsequent damage by A. alni was assessed on ten ald...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/s004420000482
更新日期:2000-12-01 00:00:00
abstract::Convergent growth regulation, where individuals adjust their growth trajectories to reach a targeted final body size, has been reported for many arthropod taxa. Divergent growth, where larger individuals grow proportionately more than smaller individuals, is seldom observed. Most studies based their conclusions on gro...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/s004420100639
更新日期:2001-06-01 00:00:00
abstract::According to the plant vigour hypothesis, galling insects should respond positively and perform better on vigorous plants or plant parts, the opposite of the predictions of the plant stress hypothesis. I carried out field experiments to analyse the effects of sustained abiotic stress on the interactions between the co...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/BF00329424
更新日期:1995-04-01 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::One of the most commonly cited hypotheses explaining invasion success is the enemy release hypothesis (ERH), which maintains that populations are regulated by coevolved natural enemies where they are native but are relieved of this pressure in the new range. However, the role of resident enemies in plant invasion rema...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/s00442-013-2798-1
更新日期:2014-03-01 00:00:00
abstract::Human activities can have a suite of positive and negative effects on animals and thus can affect various life history parameters. Human presence and agricultural practice can be perceived as stressors to which animals react with the secretion of glucocorticoids. The acute short-term secretion of glucocorticoids is co...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/s00442-015-3318-2
更新日期:2015-09-01 00:00:00