Biological vs. physical explanations for the non-random pattern of host occupation by a macroalga attaching to infaunal bivalve molluscs.

abstract：:The central mudminnow (Umbra limi) and yellow perch (Perca flavescens) are two species of fishes that commonly co-occur in small bog lakes in the Great Lakes region of North America. Both species are dietary generalists with a high degree of dietary overlap, and perch populations have been shown to have a strong negat...

journal_title：Oecologia

authors： Paszkowski CA

更新日期：1985-05-01 00:00:00

abstract：:Variation in plant resistance to pathogen infection is commonly observed in interactions between wild plants and their foliar pathogens. Models of host-pathogen interactions indicate that a large cost of infection is generally necessary to maintain this variation, yet there is limited evidence that foliar pathogens ca...

journal_title：Oecologia

authors： Goss EM,Bergelson J

更新日期：2007-05-01 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

authors： Poore AG,Graba-Landry A,Favret M,Sheppard Brennand H,Byrne M,Dworjanyn SA

更新日期：2013-11-01 00:00:00

abstract：:Tropical ferns are characterized by a high diversity of plant life forms, yet there have been few large-scale studies on the functional ecology of these different forms. We examined epiphytic, hemiepiphytic, and terrestrial ferns, and asked whether there are differences in the mineral nutrition and water relations acr...

journal_title：Oecologia

authors： Watkins JE Jr,Rundel PW,Cardelús CL

更新日期：2007-08-01 00:00:00

abstract：:Long-term fertilization of acidic tussock tundra has led to changes in plant species composition, increases in aboveground production and biomass and substantial losses of soil organic carbon (SOC). Root litter is an important input to SOC pools, although little is known about fine root demography in tussock tundra. I...

journal_title：Oecologia

authors： Sullivan PF,Sommerkorn M,Rueth HM,Nadelhoffer KJ,Shaver GR,Welker JM

更新日期：2007-09-01 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

authors： Gaff DF,Bole PV

更新日期：1986-12-01 00:00:00

abstract：:There is growing recognition that changes in vegetation composition can strongly influence peatland carbon cycling, with potential feedbacks to future climate. Nevertheless, despite accelerated climate and vegetation change in this ecosystem, the growth responses of peatland plant species to combined warming and veget...

journal_title：Oecologia

authors： Walker TN,Ward SE,Ostle NJ,Bardgett RD

更新日期：2015-05-01 00:00:00

abstract：:The seasonal changes in plant community architecture and its importance to insect herbivores during the ruderal-early stages of an experimental secondary successional gradient are described. The dominant group of insect herbivores, the Auchenorrhyncha (Hemiptera: Homoptera) are considered together with their host plan...

journal_title：Oecologia

authors： Stinson CS,Brown VK

更新日期：1983-01-01 00:00:00

abstract：:Ecologically isolated habitats (e.g., oceanic islands) favor the appearance of small assemblages of pollinators, generally characterized by highly contrasted life modes (e.g., birds, lizards), and opportunistic nectar-feeding behavior. Different life modes should promote a low functional equivalence among pollinators,...

journal_title：Oecologia

authors： Rodríguez-Rodríguez MC,Jordano P,Valido A

更新日期：2013-09-01 00:00:00

abstract：:Understanding how habitat selection changes with population density is a key concept in population regulation, community composition and managing impacts on biodiversity and ecosystem services. At low density, it is expected that individuals select habitats in terms of their preference, but as population density incre...

journal_title：Oecologia

authors： Pérez-Barbería FJ,Hooper RJ,Gordon IJ

更新日期：2013-11-01 00:00:00

abstract：:The random-mixing assumptions of many parasite-transmission models are challenged if healthy individuals can alter their behaviour to reduce their risk of infection. Some pathogens reduce the attractiveness of their hosts' excretions, for example, potentially altering contact rates and thus the predicted force of infe...

journal_title：Oecologia

authors： Hughes NK,Helsen S,Tersago K,Leirs H

更新日期：2014-12-01 00:00:00

abstract：:The duration times of the eggs, nauplii and copepodites of Cyclops vicinus and Eudiaptomus gracilis were obtained, by experiment, at 5, 10, 15 and 20°C. In contrast with previously published work on copepod development, the ovigerous females, used in the cultures at these temperatures, were removed from a water storag...

journal_title：Oecologia

authors： Munro IG

更新日期：1974-12-01 00:00:00

abstract：:This study investigated seasonal variation in the origin of water used by plants in a riparian tropical rainforest community and explored linkages between plant water source, plant xylem hydraulic conductivity and response to the onset of dry conditions. The study focused on five co-dominant canopy species, comprising...

journal_title：Oecologia

authors： Drake PL,Franks PJ

更新日期：2003-11-01 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

authors： Rodríguez Pérez H,Borrel G,Leroy C,Carrias JF,Corbara B,Srivastava DS,Céréghino R

更新日期：2018-05-01 00:00:00

abstract：:Dissection of 1,941 specimens provided data on reproductive cycles in six genera of skinks and three genera of agamids from the Alligator Rivers Region of Australia's Northern Territory. Comparative data on lizards from the temperate zone were gathered by dissecting specimens of three genera, and by reviewing publishe...

journal_title：Oecologia

authors： James C,Shine R

更新日期：1985-12-01 00:00:00

abstract：:Many organisms undergo ontogenetic niche shifts due to considerable changes in size during their development. These ontogenetic shifts can alter the trophic position of individuals, the type and strength of ecological interactions across species, and allow for cannibalism within species. In this study we ask if and ho...

journal_title：Oecologia

authors： Rudolf VH,Armstrong J

更新日期：2008-10-01 00:00:00

abstract：:Stomata of paper birch (Betula papyrifera Marsh.) seedlings were more open at high humidity than at low humidity and responded rapidly to changes in vapor pressure deficit. SO2 at 0.2 or 0.8 μl l-1 caused partial stomatal closure. Seedlings fumigated with SO2 at 0.2 or 0.5 μl l-1 for 30 h or 0.2 μl l-1 for 75 h took u...

journal_title：Oecologia

authors： Norby RJ,Kozlowski TT

更新日期：1982-04-01 00:00:00

abstract：:Although plant growth is generally recognized to be influenced by allocation to defense, genetic background (e.g., inbreeding), and gender, rarely have those factors been addressed collectively. In quaking aspen (Populus tremuloides Michx.), phenolic glycosides (PGs) and condensed tannins (CTs) constitute up to 30 % o...

journal_title：Oecologia

authors： Cole CT,Stevens MT,Anderson JE,Lindroth RL

更新日期：2016-06-01 00:00:00

abstract：:We tested the existence of general patterns in the photosynthetic metabolism of oxygen-evolving organisms, based on a compilation of data for 315 species ranging from cyanobacteria to tree leaves. We used thickness and chlorophyll a concentration of the photosynthetic structure (cell, thallus, leaf) to scale differenc...

journal_title：Oecologia

authors： Enríquez S,Duarte CM,Sand-Jensen K,Nielsen SL

更新日期：1996-10-01 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

authors： Kumagai NH

更新日期：2008-04-01 00:00:00

abstract：:Competitive displacement is considered the most severe consequence of interspecific competition; if a superior competitor invades the habitat of an inferior species, the inferior species will be displaced. Most displacements previously reported among arthropods were caused by exotic species. The lack of investigation ...

journal_title：Oecologia

authors： Osakabe M,Hongo K,Funayama K,Osumi S

更新日期：2006-12-01 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

authors： Sutherland S,Vickery RK Jr

更新日期：1988-08-01 00:00:00

abstract：:Local adaptation and population differentiation of plants are well documented, but studies on interactions with natural enemies are rare. In particular, evidence for plant adaptation to the local biotic environment, such as herbivores remains poor. We used the black mustard Brassica nigra, an annual species of river v...

journal_title：Oecologia

authors： Bischoff A,Trémulot S

更新日期：2011-04-01 00:00:00

abstract：:In an environment fluctuating in a predicatable manner with wide among-year variation in offspring mortality, fitness is largely influenced by the timing of reproductive investment. In vole-eating nocturnal Tengmalm's owls (Aegolius funereus), within-cycle variation in 1st-year survival of owlets is 3-fold as estimate...

journal_title：Oecologia

authors： Hakkarainen H,Korpimäki E

更新日期：1994-03-01 00:00:00

abstract：:Alpine Trifolium species have high rates of symbiotic N2-fixation which may influence the abundance and growth of plant species growing near them. The potential for facilitative effects on plant abundance and growth in dry meadow alpine tundra of Niwot Ridge, Colo., characterized by low resource availability, was inve...

journal_title：Oecologia

authors： Thomas BD,Bowman WD

更新日期：1998-06-01 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

authors： Leal LC,Andersen AN,Leal IR

更新日期：2014-01-01 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

authors： Martínez B,Arenas F,Rubal M,Burgués S,Esteban R,García-Plazaola I,Figueroa FL,Pereira R,Saldaña L,Sousa-Pinto I,Trilla A,Viejo RM

更新日期：2012-10-01 00:00:00

abstract：:Plant species and functionally related species groups from arid and semi-arid habitats vary in their capacity to take up summer precipitation, acquire nitrogen quickly after summer precipitation, and subsequently respond with ecophysiological changes (e.g. water and nitrogen relations, gas exchange). For species that ...

journal_title：Oecologia

authors： Snyder KA,Donovan LA,James JJ,Tiller RL,Richards JH

更新日期：2004-10-01 00:00:00

abstract：:Ground-nesting North American landbirds have declined in the longterm, including species with a variety of migratory strategies. The mesopredator release hypothesis explains declines by suggesting that the virtual elimination of top carnivores (large-bodied canids and felids) from much of North America has "released" ...

journal_title：Oecologia

authors： Rogers CM,Caro MJ

更新日期：1998-08-01 00:00:00

abstract：:Demographic characteristics associated with the maintenance and growth of populations, such as seed dynamics, seedling emergence, survival, and tiller dynamics were examined for two tussock grasses, the native Agropyron spicatum and the introduced Agropyron desertorum in a 30-month field study. The introduced grass wa...

journal_title：Oecologia

authors： Pyke DA

更新日期：1990-04-01 00:00:00