Competition with stone crabs drives juvenile spiny lobster abundance and distribution.

abstract：:This paper reports on an asymmetric indirect interaction between two chrysomelid beetles where one species (Galerucella tenella) experiences higher parasitization, and the other species (Galerucella calmariensis) lower parasitization, in mixed compared with monospecific populations. This pattern is likely to be a cons...

journal_title：Oecologia

authors： Hambäck PA,Stenberg JA,Ericson L

更新日期：2006-06-01 00:00:00

abstract：:The effects of bannertail kangaroo rat (Dipodomys spectabilis) mounds and associated soil-surface disturbance on plant species composition and diversity in the Chihuahuan Desert were examined with multivariate analysis. Kangaroo rat mounds created disturbance gaps and contributed to local species diversity by creating...

journal_title：Oecologia

authors： Guo Q

更新日期：1996-04-01 00:00:00

abstract：:Much of the research into herbivore ecology and evolution has focused on patterns and mechanisms of niche partitioning in the diets of specialized grazers and browsers, but the significance of the balance of grazing and browsing within intermediate feeders present unique questions that have received less attention. We...

journal_title：Oecologia

authors： Christianson D,Creel S

更新日期：2009-01-01 00:00:00

abstract：:The late-glacial climatic oscillation, 12-10 ka BP, is characterised in ice core oxygen isotope profiles by a rapid and abrupt return to glacial climate. Recent work has shown that associated with this cooling was a drop in atmospheric CO2 concentration of ca. 50 ppm. In this paper, the impact of these environmental c...

journal_title：Oecologia

authors： Beerling DJ

更新日期：1996-10-01 00:00:00

abstract：:Avian malaria parasites are known to have negative effects on their hosts, including consequences for reproductive success and survival. However, the outcome of disease may vary greatly among individuals, due to their particular genetic background, their past history of exposure to infections, or the way they respond ...

journal_title：Oecologia

authors： Arriero E,Pérez-Tris J,Ramírez A,Remacha C

更新日期：2018-12-01 00:00:00

abstract：:Theoretical models about the benefits of philopatry predict that immigrant fitness can be higher, lower or similar to that of philopatrics depending on habitat heterogeneity, dispersal costs, distance between patches or population densities. In this study, we compared transience rates, local survival and recruitment a...

journal_title：Oecologia

authors： Oro D,Tavecchia G,Genovart M

更新日期：2011-04-01 00:00:00

abstract：:Previous studies have shown that green sunfish, Lepomis cyanellus, have strong effects on the activity, habitat use, social interactions and mating dynamics of a stream-dwelling water strider, Aquarius remigis (family Gerridae, hence, gerrids). In nature, however, stream pools often contain not just sunfish and water ...

journal_title：Oecologia

authors： Sih A,Krupa JJ

更新日期：1996-01-01 00:00:00

abstract：:Pheasants (Phasianus colchicus) and grey partridges (Perdix perdix) were maintained together on land known to be contaminated with eggs of the caecal nematode Heterakis gallinarum to examine the hypothesis that this shared parasite has a greater impact on grey partridges than on pheasants. Since an inverse relationshi...

journal_title：Oecologia

authors： Tompkins DM,Dickson G,Hudson PJ

更新日期：1999-05-01 00:00:00

abstract：:Experimental ponds were used as a model system of habitat patches to study the effect of habitat size on the relative growth performance of tadpoles of Bufo americanus and Pseudacris triseriata, and on colonization by predatory insects. Three pond depths and surface areas were habitat size treatments in a replicated, ...

journal_title：Oecologia

authors： Pearman PB

更新日期：1995-04-01 00:00:00

abstract：:In the non-reproductive period, six species of brood parasites (4 cuckoos, 2 viduines) observed in Rhodesia and in the Kalahari were found to inhabit other areas than their hosts, being either nomadic or migratory in habit. They are hence exposed to different environmental conditions.Histological examination of the go...

journal_title：Oecologia

authors： Immelmann K

更新日期：1969-09-01 00:00:00

abstract：:This study reports a rare example where a native herbivorous insect frequently overexploits local populations of its perennial host. Local dynamics of a flightless weevil (Hadramphus spinipennis, Curculionidae) and its host plant (Aciphylla dieffenbachii, Apiaceae) were assessed for one discrete patch. In this main st...

journal_title：Oecologia

authors： Schöps K

更新日期：2002-07-01 00:00:00

abstract：:Abiotic drivers of environmental stress have been found to induce CAM expression (nocturnal carboxylation) in facultative CAM species such as Mesembryanthemum crystallinum. The role played by biotic factors such as competition with non-CAM species in affecting CAM expression, however, remains largely understudied. Thi...

journal_title：Oecologia

authors： Yu K,D'Odorico P,Li W,He Y

更新日期：2017-06-01 00:00:00

abstract：:The photosynthetic responses of a range of trebouxioid lichens were investigated to determine whether variations in net assimilation rates shown by populations of the same species collected from different habitats could be correlated with adjustments in carbon-concentrating mechanism (CCM) activity. The activity of a ...

journal_title：Oecologia

authors： Smith EC,Griffiths H

更新日期：1998-01-01 00:00:00

abstract：:Habitat fragmentation poses an inherent problem for metacommunity dynamics, as dispersal among communities is hindered by increasing isolation and the loss of patches. Wetlands are one such system that have undergone excessive destruction and fragmentation in recent years. Zooplankton within these communities have his...

journal_title：Oecologia

authors： Allen MR

更新日期：2007-08-01 00:00:00

abstract：:Like many polyphagous herbivores, individuals of Sarasinula plebeia (Fischer) (Soleolifera: Veronicellidae) consume a variety of plant species that may differ in nutritional content. In this study we determined the ability of these slugs to compensate for such variation in diet composition. Dilution with water of an a...

journal_title：Oecologia

authors： Rueda AA,Slansky F Jr,Wheeler GS

更新日期：1991-10-01 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

authors： Chalcraft DR,Andrews RM

更新日期：1999-05-01 00:00:00

abstract：:This study examined the effects of intraspecific variation in leaf nitrogen and water content on the growth, consumption, conversion efficiency and nitrogen use of Colias butterfly larvae. Pest and non-pest Colias philodice eriphyle larvae and Colias eurytheme larvae were fed field-collected alfalfa (Medicago sativa) ...

journal_title：Oecologia

authors： Tabashnik BE

更新日期：1982-12-01 00:00:00

abstract：:In a North Carolina population of Diamorpha smallii, densities were artificially manipulated by thinning stands to predetermined densities. Individuals in areas of high density produce fewer seeds than individuals at low density in the same habitat. Three components of fecundity, the number of flowers per plant, the n...

journal_title：Oecologia

authors： Clay K,Shaw R

更新日期：1981-10-01 00:00:00

abstract：:In indeterminate plant species, the rate of vegetative growth usually declines during the stage of active reproductive growth. Fruit shedding, as induced by insect herbivores, could counteract this decline. Due to the relative increase in vegetative growth, plants that have suffered reproductive damage could be better...

journal_title：Oecologia

authors： Sadras VO

更新日期：1997-02-01 00:00:00

abstract：:Leaf diffusion resistance (r 1) of the upper and lower leaf surfaces of several Populus clones was related to leaf water potential (ψ1), light intensity, vapor pressure deficit (VPD), and temperature by intrinsicallylinear, logarithmic multiple regression analyses. Regression equations accounted for up to 80% of varia...

journal_title：Oecologia

authors： Pallardy SG,Kozlowski TT

更新日期：1979-01-01 00:00:00

abstract：:The percent of species of the Cyperaceae possessing the C4 pathway was calculated for twenty-five regions of North America. A stepwise multiple regression analysis was used to determine which climatic variables were most highly correlated with the percent C4 species among the various regions. The square of the mean Ju...

journal_title：Oecologia

authors： Teeri JA,Livingstone DA

更新日期：1980-12-01 00:00:00

abstract：:We analyze gut architectures of 42 species of marine polychaetes in terms of their anatomically distinct compartments, and quantify differences among guts in terms of ratios of body volume to gut volume, relative compartmental volumes, total gut aspect ratios and compartmental aspect ratios. We use multivariate techni...

journal_title：Oecologia

authors： Penry DL,Jumars PA

更新日期：1990-01-01 00:00:00

abstract：:Prey subsidies originating from detritus add nutrients and energy to arboreal communities. Measurement of this subsidy is required in the understanding of how food web dynamics respond to changes in surrounding environments. Shrub spiders are one of the key predators involved in food web coupling. We evaluate the effe...

journal_title：Oecologia

authors： Haraguchi TF,Uchida M,Shibata Y,Tayasu I

更新日期：2013-04-01 00:00:00

abstract：:We deal with the causes of the synchronously fluctuating numbers of subpopulations of the carabid species Calathus melanocephalus as compared with the asynchronously fluctuating numbers of subpopulations of the carabid Pterostichus versicolor. Both species continuously occupy a large heath area, Dwingelder Veld (1600 ...

journal_title：Oecologia

authors： van Dijk TS,den Boer PJ

更新日期：1992-06-01 00:00:00

abstract：:Reduced rations of Calotropis gigantea produced a number of negative effects on the grasshopper Poecilocerus pictus such as heavy mortality (42% at 25% ration as aginst 11% at 100% ration), extension of hopper period (from 75 days about 113 days) and increase in the number of instars (from 6-7). At the tested 100, 50 ...

journal_title：Oecologia

authors： Muthukrishnan J,Delvi MR

更新日期：1974-09-01 00:00:00

abstract：:The site of settlement of barnacles (Balanus improvisus) attached on shells of bluemussels (Mytilus edulis) was mapped from a sample of mussels collected in the Baltic Sea. Most barnacles had settled near the siphonal apertures of the mussel. An experiment was made to measure the disadvantages and advantages that livi...

journal_title：Oecologia

authors： Laihonen P,Furman ER

更新日期：1986-12-01 00:00:00

abstract：:We tested, through field experiments and simulation models, the hypothesis that fruit-searching tephritid fruit flies adjust their within-tree search persistence according to the sequence and timing of encounters with parasitized (i.e. egg-infested) and unparasitized Crataegus sp. host fruit. In the field, we presente...

journal_title：Oecologia

authors： Roitberg BD,Prokopy RJ

更新日期：1984-04-01 00:00:00

abstract：:Seasonal and nutritionally induced changes of whole body protein metabolism have been studied in 45 to 57 mm shell-length Mytilus edulis from Whitsand Bay, southwest England. The subtraction of measured net protein balances from coincident rates of protein synthesis, determined in vivo by supplying 15N-labelled alga a...

journal_title：Oecologia

authors： Hawkins AJ

更新日期：1985-04-01 00:00:00

abstract：:The stress-gradient hypothesis (SGH) predicts that the community-wide prevalence of positive interactions, relative to negative interactions, is greater under more severe environmental conditions. Because the frequency of positive and negative interactions within a community is the aggregate of multiple pair-wise inte...

journal_title：Oecologia

authors： le Roux PC,McGeoch MA

更新日期：2010-03-01 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

authors： Reniers J,Brendonck L,Roberts JD,Verlinden W,Vanschoenwinkel B

更新日期：2015-07-01 00:00:00