Effect of temperature on the time of hatching in Baëtis rhodani (Ephemeroptera: Baëtidae).

abstract：:Although consumers often rely on chemical information to optimize their foraging strategies, it is poorly understood how top carnivores above the third trophic level find resources in heterogeneous environments. Hyperparasitoids are a common group of organisms in the fourth trophic level that lay their eggs in or on t...

journal_title：Oecologia

authors： Cusumano A,Harvey JA,Dicke M,Poelman EH

更新日期：2019-03-01 00:00:00

abstract：:Tree-ring records can provide valuable information to advance our understanding of contemporary terrestrial carbon cycling and to reconstruct key metrics in the decades preceding monitoring data. The growing use of tree rings in carbon-cycle research is being facilitated by increasing recognition of reciprocal benefit...

journal_title：Oecologia

authors： Babst F,Alexander MR,Szejner P,Bouriaud O,Klesse S,Roden J,Ciais P,Poulter B,Frank D,Moore DJ,Trouet V

更新日期：2014-10-01 00:00:00

abstract：:Marion Island (47°S, 38°E) has one of the most oceanic climates on earth, with consistently low air temperatures, high precipitation, constantly high humidity, and low incident radiation. Since 1968 mean surface air temperature has increased significantly, by 0.025° C year-1. This was strongly associated with correspo...

journal_title：Oecologia

authors： Smith VR,Steenkamp M

更新日期：1990-11-01 00:00:00

abstract：:Wire cages with different-sized meshes were placed on trunks and around leaves at different heights in oak trees and in forest litter. Gypsy moth, Lymantria dispar, instars II-V tethered with threads were placed in each cage (instars II-III only in leaf cages) as well as outside the cages. Predation of larvae decrease...

journal_title：Oecologia

authors： Weseloh RM

更新日期：1988-11-01 00:00:00

abstract：:The mycobiont of the high-light-susceptible forest lichen Lobaria pulmonaria was shown to deposit brown, melanic compounds in the outer layer of the upper cortex, depending on the long-term level of solar radiation in its natural habitat. Furthermore, pale thalli from a shady habitat produced melanic compounds after t...

journal_title：Oecologia

authors： Gauslaa Y,Solhaug KA

更新日期：2001-02-01 00:00:00

abstract：:We investigated the effects of elevated CO2 (600 μl l-1 vs 350 μl l-1) and phosphorus supply (1 g P m-2 year-1 vs unfertilized) on intact monoliths from species-rich calcareous grassland in a greenhouse. Aboveground community dry mass remained almost unaffected by elevated CO2 in the first year (+6%, n.s.), but was si...

journal_title：Oecologia

authors： Stöcklin J,Schweizer K,Körner C

更新日期：1998-08-01 00:00:00

abstract：:Holling's (1992) proposition that discontinuities in biotic and abiotic processes generate structure in ecological systems is examined experimentally by imposing size-specific perturbations on marine sediment assemblages. Two kinds of perturbations were applied: organic enrichment and predation, each at two levels. Pe...

journal_title：Oecologia

authors： Raffaelli D,Hall S,Emes C,Manly B

更新日期：2000-02-01 00:00:00

abstract：:The natural occurrence of dogwood anthracnose (Discula destructiva) on young dogwood seedlings planted in different microenvironments in the southern Appalachian Mountains provided an opportunity to examine the effects of biotic stress on phenolic defense and insect herbivory. Dogwood trees planted in forest understor...

journal_title：Oecologia

authors： Dudt JF,Shure DJ

更新日期：1993-10-01 00:00:00

abstract：:The interaction of density and mycorrhizal effects on the growth, mineral nutrition and size distribution of seedlings of two perennial members of the Fabaceae was investigated in pot culture. Seedlings of Otholobium hirtum and Aspalathus linearis were grown at densities of 1, 4, 8 and 16 plants per 13-cm pot with or ...

journal_title：Oecologia

authors： Allsopp N,Stock WD

更新日期：1992-08-01 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：:While morphological differences such as tongue length are often featured as drivers of pollinator floral preferences, differences in chemical detection and tolerance to secondary compounds may also play a role. We sought to better understand the role of secondary compounds in floral preference by examining visitation ...

journal_title：Oecologia

authors： Villalona E,Ezray BD,Laveaga E,Agrawal AA,Ali JG,Hines HM

更新日期：2020-07-01 00:00:00

abstract：:Increasing evidence has shown that nutrients and consumers interact to control primary productivity in natural systems, but how abiotic stress affects this interaction is unclear. Moreover, while herbivores can strongly impact zonation patterns in a variety of systems, there are few examples of this in salt marshes. W...

journal_title：Oecologia

authors： Alberti J,Méndez Casariego A,Daleo P,Fanjul E,Silliman BR,Bertness M,Iribarne O

更新日期：2010-05-01 00:00:00

abstract：:To investigate the factors that influence prey utilization among predators with active prey, three series of experiments were performed in which Ural owls (Strix uralensis) searched for and attacked three prey species of wild mice, Microtus montebelli, Apodemus speciosus, and A. argenteus, in a large flight cage. Over...

journal_title：Oecologia

authors： Nishimura K,Abe MT

更新日期：1988-11-01 00:00:00

abstract：:Behavioral traits and diet were traditionally thought to be highly plastic within individuals. This view was espoused in the widespread use of optimality models, which broadly predict that individuals can modify behavioral traits and diet across ecological contexts to maximize fitness. Yet, research conducted over the...

journal_title：Oecologia

authors： Toscano BJ,Gownaris NJ,Heerhartz SM,Monaco CJ

更新日期：2016-09-01 00:00:00

abstract：:We assessed the ecomorphological structure of a guild of rhinolophoid bats in a Malaysian rainforest first described by Heller and von Helversen (1989). These authors found that the distribution of echolocation call frequencies used by 12 syntopic species was more even than expected from allometric relationships or in...

journal_title：Oecologia

authors： Kingston T,Jones G,Zubaid A,Kunz TH

更新日期：2000-08-01 00:00:00

abstract：:Male dragonflies of the species Aeschna cyanea pay several visits per day to a suitable pond in search of mates. The influence of the population density upon the daily duration of presence of single dragonfly males was investigated by means of multiple regression analysis. Several environmental factors were also consi...

journal_title：Oecologia

authors： Kaiser H

更新日期：1974-12-01 00:00:00

abstract：:Effective communication regarding distance in the vertical dimension is critical for many ecological, climatological and broader geophysical studies of the Earth. Confusion exists regarding the definition of three English words commonly used to describe the vertical dimension: (1) elevation; (2) altitude; and (3) he...

journal_title：Oecologia

authors： McVicar TR,Körner C

更新日期：2013-02-01 00:00:00

abstract：:The effects on plant growth and stomatal physiology of alterations in light quantity and quality during development were investigated in the C3 monocot, Commelina communis. Reduction in light intensity resulted in decreased branching and stem elongation, with effects more severe under "neutral shade" (R:FR≥1.0) than u...

journal_title：Oecologia

authors： Assmann SM

更新日期：1992-11-01 00:00:00

abstract：:Nutrient availability and herbivory can regulate primary production in ecosystems, but little is known about how, or whether, they may interact with one another. Here, we investigate how nitrogen availability and insect herbivory interact to alter aboveground and belowground plant community biomass in an old-field eco...

journal_title：Oecologia

authors： Blue JD,Souza L,Classen AT,Schweitzer JA,Sanders NJ

更新日期：2011-11-01 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

authors： Valtonen A,Ayres MP,Roininen H,Pöyry J,Leinonen R

更新日期：2011-01-01 00:00:00

abstract：:Pollination services are compromised by habitat destruction, land-use intensification, pesticides, and introduced species. How pollination services respond to such stressors depends on the capacity of pollinator assemblages to function in the face of environmental disruption. Here, we quantify how pollination services...

journal_title：Oecologia

authors： Nabors AJ,Cen HJ,Hung KJ,Kohn JR,Holway DA

更新日期：2018-01-01 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

authors： Debrot S,Mermod C

更新日期：1983-08-01 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

authors： Pearson DE

更新日期：2009-03-01 00:00:00

abstract：:Seasonal patterns of growth, 14CO2 uptake, and fluctuations in tissue titratable acidity were studied over the course of a year at a study site in the coastal plain of North Carolina.Elongation rates of Spanish moss strands were maximal in the summer and minimal in the winter. Summer maximal biomass addition rates wer...

journal_title：Oecologia

authors： Martin CE,Christensen NL,Strain BR

更新日期：1981-07-01 00:00:00

abstract：:Numerous mechanisms are proposed to explain why exotic plants successfully invade natural communities. However, the positive effects of native engineers on exotic plant species have received less consideration. We tested whether the nutrient-rich soil patches created by a native ecological engineer (refuse dumps from ...

journal_title：Oecologia

authors： Farji-Brener AG,Lescano N,Ghermandi L

更新日期：2010-05-01 00:00:00

abstract：:The model of Meats (1974a) is tested against Laughlin's (1967a) data on growth in the field. A good measure of agreement is found. The model is then used to investigate the consequences of the univoltine T. paludosa starting its life cycle (flight season) at various dates in the range quoted by Coulson (1962)-i.e. fro...

journal_title：Oecologia

authors： Meats A

更新日期：1975-06-01 00:00:00

abstract：:Daily energy metabolism and water flux were measured with doubly labeled water in the free-living insectivorous lizards Cnemidophorus tigris (mean body mass 15.7 g) and Callisaurus draconoides (8.6 g) in June 1979 in the Colorado Desert of California. C. tigris was an active forager; it spent 91% of its 5-h daily acti...

journal_title：Oecologia

authors： Anderson RA,Karasov WH

更新日期：1981-05-01 00:00:00

abstract：:Diel vertical migration (DVM) of herbivorous zooplankton is a widespread behavioural phenomenon in freshwater ecosystems. So far only little attention has been paid to the impact of DVM on the phytoplankton community in the epilimnion. Some theoretical models predict that algal population growth in the epilimnion shou...

journal_title：Oecologia

authors： Reichwaldt ES,Wolf ID,Stibor H

更新日期：2004-11-01 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

authors： Turnbull MH

更新日期：1991-06-01 00:00:00

abstract：:Identifying links between morphology and performance for ecologically relevant tasks will help elucidate the relationships between organismal design and fitness. We conducted a laboratory study to quantify the relationship between variation in body shape and prey-capture success in four drift-feeding minnow species. W...

journal_title：Oecologia

authors： Rincón PA,Bastir M,Grossman GD

更新日期：2007-05-01 00:00:00