Abstract:
:Ecological traits that reflect movement potential are often used as proxies for measured dispersal distances. Whether such traits reflect actual dispersal is often untested. Such tests are important because maximum dispersal distances may not be achieved and many dispersal events may be unsuccessful (without reproduction). For insects, many habitat patches harbour 'resident' species that are present as larvae (sedentary) and adults (winged and dispersing), and 'itinerant' species present only as adults that have dispersed from elsewhere and fail to reproduce. We tested whether itinerancy patterns were temporally consistent, and whether itinerant and resident species differed in wing morphology, a strong correlate of flight capability. Over 3 years and at multiple locations in a 22 km stream length, we sampled larvae and adults of caddisflies in the genus Ecnomus to categorize species as residents or itinerants. Flight capacity was measured using wing size (length and area) and shape parameters (aspect ratio and the second moment of wing area). Three species of Ecnomus were residents and three species were itinerants, and patterns were consistent over 3 years. On average, itinerant species had larger wings, suggesting a greater capacity to fly long distances. Wing shape differed between species, but did not differ systematically between residents and itinerants. Wing morphology was associated with actual but not effective dispersal of some species of Ecnomus. Morphological traits may have weak explanatory power for hypotheses regarding the demographic connectedness of populations, unless accompanied by data demonstrating which dispersers contribute new individuals to populations.
journal_name
Oecologiajournal_title
Oecologiaauthors
Lancaster J,Downes BJdoi
10.1007/s00442-017-3856-xsubject
Has Abstractpub_date
2017-05-01 00:00:00pages
171-182issue
1eissn
0029-8549issn
1432-1939pii
10.1007/s00442-017-3856-xjournal_volume
184pub_type
杂志文章相关文献
OECOLOGIA文献大全abstract::The duration and amount of water captured on leaves and its functional significance is highly varied. Leaf surface wettability influences water absorption, gas exchange, pathogen infection, nutrient leaching, contamination by pollutants, self-cleaning properties and in freezing environments the probability of extrinsi...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/s00442-009-1437-3
更新日期:2010-01-01 00:00:00
abstract::In this study we assessed the effectiveness of rodents as dispersers of Quercus ilex in a patchy landscape in southeastern Spain. We experimentally followed the fates of 3,200 marked and weighed acorns from dispersal through the time of seedling emergence over three years. Rodents handled about 99% of acorns, and disp...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/s00442-007-0928-3
更新日期:2008-03-01 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::Food density, degree of hunger prior to foraging, and food processing difficulty were varied in order to determine their effects on the diet diversity of captive Peromyscus leucopus foraging for buried seeds. No relationship was found between diet diversity and food density. However, diet diversity exhibited a signifi...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/BF00346970
更新日期:1980-07-01 00:00:00
abstract::As the impact of anthropogenic activities intensifies worldwide, an increasing proportion of landscape is converted to early successional stages every year. To understand and anticipate the global effects of the human footprint on wildlife, assessing short-term changes in animal populations in response to disturbance ...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/s00442-016-3613-6
更新日期:2016-07-01 00:00:00
abstract::A two year comparative field water relations study was conducted in central Maryland on three sympatric temperate lianas, Lonicera japonica, Vitis vulpina and Parthenocissus quinquefolia. Seasonal physiological activity was longer by approximately 9 weeks in the evergreen L. japonica, while peak rates of stem elongati...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/BF00380051
更新日期:1988-01-01 00:00:00
abstract::Traditionally it has been thought that most boreal forest communities lack a significant input of biologically fixed nitrogen. Recent discoveries of nitrogen fixation by cyanobacteria associated with mosses have resulted in a re-evaluation of this view. While it is recognized that rates of nitrogen fixation in mosses ...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/s00442-009-1391-0
更新日期:2009-08-01 00:00:00
abstract::We have analysed the importance of worker ants (Proformica longiseta, Formicidae) as pollinators of a mass-flowering woody plant (Hormathophylla spinosa, Cruciferae) in the high-mountain area of the Sierra Nevada (southern Spain). We have quantified the abundance and foraging behavior of P. longiseta in comparison wit...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/BF00317631
更新日期:1992-09-01 00:00:00
abstract::Carbohydrate, lipid, and protein compositions are stoichiometrically related to organic CHN (carbon, hydrogen, nitrogen) contents. Elemental CHN analyses of total biomass and ash, therefore, provide a basis for the calculation of proximate biochemical composition and bomb caloric value. The classical nitrogen to prote...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/BF00384259
更新日期:1984-06-01 00:00:00
abstract::Availability of light and water differs between tropical moist and dry forests, with typically higher understorey light levels and lower water availability in the latter. Therefore, growth trajectories of juvenile trees--those that have not attained the canopy--are likely governed by temporal fluctuations in light ava...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/s00442-009-1540-5
更新日期:2010-06-01 00:00:00
abstract::The presence of spines on woody plants has been shown to limit the loss of foliage to large mammalian browsers by restricting both bite size and biting rate. We tested the hypothesis that plant spines are also an effective defense against browsing by small mammals, such as rodents, that climb within the canopy of shru...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/s004420050371
更新日期:1998-01-01 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::A chemostat study was conducted to investigate the influence of water quality parameters related to acidification processes on the decomposition of floating leaves of Nymphaea alba L. HCO inf3sup- and total Al concentration and pH influenced the decay rate. The activity of four cell-wall decaying exoenzymes was measur...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/BF00317572
更新日期:1991-11-01 00:00:00
abstract::The relative importance of allelopathy and resource competition in plant-plant interactions has been vigorously debated but seldom tested. We used activated carbon to manipulate the effects of root exudates of Centaurea maculosa, a noxious weed in much of western North America, on root elongation rates and growth of t...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/s004420000533
更新日期:2001-02-01 00:00:00
abstract::Many studies have shown that nonlethal predator effects such as trait-mediated interactions (TMIs) can have significant impacts on the structure and function of communities, but the role that environmental conditions play in modulating the scale and magnitude of these effects has not been carefully investigated. TMIs ...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/s00442-008-0995-0
更新日期:2008-05-01 00:00:00
abstract::Plants of Diplacus aurantiacus, a successional shrub common in California chaparral, were grown under controlled conditions in which either quantum flux density or nitrogen availability was varied. Photosynthesis and leaf nitrogen content were determined on a leaf area and a leaf weight basis, and whole plant growth w...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/BF00349189
更新日期:1981-05-01 00:00:00
abstract::Invasive generalist ectoparasites provide a tool to study factors affecting expansion rates. An increase in the number of host species may facilitate geographic range expansion by increasing the number of suitable habitats and by affecting local extinction and colonization rates. A geographic perspective on parasite h...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/s00442-011-1951-y
更新日期:2011-08-01 00:00:00
abstract::It has been suggested that soil nitrification is inhibited as a succession develops. This hypothesis was examined in a sub tropical rain forest succession containing five successional stages. Soil mineral nitrogen was measured at the time of collection and after 20 days incubation in the laboratory or field. Sampling ...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/BF00346829
更新日期:1980-01-01 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
abstract::Habitat selection, and its associated density and frequency-dependent evolution, has a profound influence on such vital phenomena as population regulation, species interactions, the assembly of ecological communities, and the origin and maintenance of biodiversity. Different strategies of habitat selection, and their ...
journal_title:Oecologia
pub_type: 杂志文章,评审
doi:10.1007/s00442-003-1241-4
更新日期:2003-06-01 00:00:00
abstract::Invertebrate algal grazer densities were manipulated in a temperate river to discover the impact of differences in riffle-scale architectural complexity on the strength of the trophic interaction between grazers and epilithic algae. Animal densities were manipulated by manual removal in architecturally complex boulder...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/BF00328458
更新日期:1996-08-01 00:00:00
abstract::Leaves from several desert and woodland species, including gymnosperms and angiosperms with both C3 and C4 physiology, were analyzed to detect trends in δ13Cleaf with elevation and slope aspect along two transects in southeastern Utah and south-central New Mexico, USA. The main difference between the two transects is ...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/s00442-002-0973-x
更新日期:2002-08-01 00:00:00
abstract::The effects of notonectid-induced crests on growth and reproduction, and resource allocation to crest construction, moult losses and eggs of Daphnia carinata were measured. An attempt was made to elucidate the mechanisms of physiological costs of crest induction for this species. The crested morph of d. carinata reach...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/BF00323161
更新日期:1994-03-01 00:00:00
abstract::Energy metabolism (oxygen consumption) in acclimated juvenile yellow banded and unbanded Cepaea hortensis Müll. was measured at 5°, 10°, 15°, 20°, and 25°C with Englemann respirometers. Metabolic rates were also measured after abrupt temperature changes from 5° to 20° and from 25° to 10°C.Energy metabolism in the two ...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/BF00345000
更新日期:1979-08-01 00:00:00
abstract::Both top-down and bottom-up processes are common in terrestrial ecosystems, but how these opposing forces interact and vary over time is poorly understood. We tested the variation of these processes over seasonal time in a natural temperate zone grassland, a field site characterized by strong seasonal changes in abiot...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/s00442-003-1272-x
更新日期:2003-07-01 00:00:00
abstract::We examined under laboratory conditions the thermopreference of the migratory locust, Locusta migratoria migratorioides, following infection by the entomopathogenic fungus Metarhizium anisopliae var. acridum and its influence on mycosis. Infected locusts raised their body temperature more frequently than healthy consp...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/s00442-003-1431-0
更新日期:2004-01-01 00:00:00
abstract::The pressure to escape natural enemies may shape how herbivorous insects use their plant resources. On wild crucifers, ovipositional preferences of the diamondback moth (Plutella xylostella; DBM) were similar to searching preferences of its main parasitoid, an ichneumonid wasp (Diadegma insulare). But on cultivated cr...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/BF00317166
更新日期:1992-04-01 00:00:00
abstract::Atriplex sagittata is a heterocarpic species producing three types of fruits which differ in morphology and ecological properties. This study focused on variation in biomass allocation into particular fruit types under different density and fertilization levels. The reduction in total weight under stressful conditions...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/s004420050761
更新日期:1999-04-01 00:00:00
abstract::Germination characteristics and frost tolerance of seedlings are crucial parameters for establishment and invasion success of plants. The characterization of differences between populations in native and invasive ranges may improve our understanding of range expansion and adaptation. Here, we investigated germination ...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/s00442-013-2813-6
更新日期:2014-03-01 00:00:00
abstract::Differences in the density of conspecific tree individuals in response to environmental gradients are well documented for many tree species, but how such density differences are generated and maintained is poorly understood. We examined the segregation of six dipterocarp species among three soil types in the Pasoh tro...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/s00442-012-2529-z
更新日期:2013-07-01 00:00:00