Temporal stability of pollinator preference in an alpine plant community and its implications for the evolution of floral traits.

abstract：:Understanding the strength and type of interactions among species is vital to anticipate how ecosystems will respond to ongoing anthropogenic stressors. Here, we examine the ecological function of native (Ecklonia radiata) and invasive (Undaria pinnatifida) kelps in resisting shifts to sediment-trapping turf on reefs ...

journal_title：Oecologia

authors： Reeves SE,Kriegisch N,Johnson CR,Ling SD

更新日期：2018-12-01 00:00:00

abstract：:Energy limitation has long been the primary assumption underlying conceptual models of evolutionary and ecological processes in cave ecosystems. However, the prediction that cave communities are actually energy-limited in the sense that constituent populations are consuming all or most of their resource supply is unte...

journal_title：Oecologia

authors： Venarsky MP,Huntsman BM,Huryn AD,Benstead JP,Kuhajda BR

更新日期：2014-11-01 00:00:00

abstract：:It has been postulated that free amino acids in the diet of herbivores are a more readily available source of nitrogen than are amino acids in intact proteins. When plants are subjected to any of a number of stress factors the concentration of free amino acids in their tissues may increase relative to the protein cont...

journal_title：Oecologia

authors： Cockfield SD

更新日期：1988-10-01 00:00:00

abstract：:Six early successional plant species with differing photosynthetic pathways (3 C3 species and 3 C4 species) were grown at either 300, 600, or 1,200 ppm CO2 and at either 0.0 or 0.25 ppm SO2. Total plant growth increased with CO2 concentration for the C3 species and varied only slightly with CO2 for the C4 species. Fum...

journal_title：Oecologia

authors： Carlson RW,Bazzaz FA

更新日期：1982-01-01 00:00:00

abstract：:Calorific values for the vegetative tissues of a group of perennial desert and arid woodland plants ranged from 3,191 to 5,375 calories per gram, oven dry weight. These span the range of comparable values reported earlier for plants in other environments, and reflect variety in adaptations to dry environments. Tissues...

journal_title：Oecologia

authors： Darling MS

更新日期：1976-06-01 00:00:00

abstract：:Female ornaments are present in many species, and it is more and more accepted that sexual or social selection may lead to their evolution. By contrast, the information conveyed by female ornaments is less well understood. Here, we investigated the links between female ornaments and maternal effects. In birds, an impo...

journal_title：Oecologia

authors： Midamegbe A,Grégoire A,Staszewski V,Perret P,Lambrechts MM,Boulinier T,Doutrelant C

更新日期：2013-10-01 00:00:00

abstract：:Positive species interactions are ubiquitous and crucial components of communities, but they are still not well incorporated into established ecological theories. The definitions of facilitation and mutualism overlap, and both are often context dependent. Many interactions that are facilitative under stressful conditi...

journal_title：Oecologia

authors： Lim RJY,Lam WN,Tan HTW

更新日期：2018-11-01 00:00:00

abstract：:Theory on intraguild (IG) predation predicts that coexistence of IG-predators and IG-prey is only possible for a limited set of parameter values, suggesting that IG-predation would not be common in nature. This is in conflict with the observation that IG-predation occurs in many natural systems. One possible explanati...

journal_title：Oecologia

authors： Choh Y,van der Hammen T,Sabelis MW,Janssen A

更新日期：2010-06-01 00:00:00

abstract：:Chemical cues that evoke anti-predator developmental changes have received considerable attention, but it is not known to what extent prey use information from the smell of predators and from cues released through digestion. We conducted an experiment to determine the importance of various types of cues for the adjust...

journal_title：Oecologia

authors： Hettyey A,Tóth Z,Thonhauser KE,Frommen JG,Penn DJ,Van Buskirk J

更新日期：2015-11-01 00:00:00

abstract：:Soil nutrient availability directly enhances vegetative growth, flowering, and fruiting in alpine ecosystems. However, the impacts of nutrient addition on pollinator visitation, which could affect seed output indirectly, are unknown. In a nutrient addition experiment, we tested the hypothesis that seed output in the i...

journal_title：Oecologia

authors： Muñoz AA,Celedon-Neghme C,Cavieres LA,Arroyo MT

更新日期：2005-03-01 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

authors： Cooper SM,Ginnett TF

更新日期：1998-01-01 00:00:00

abstract：:Species distributions are dependent on interactions with abiotic and biotic factors in the environment. Abiotic factors like temperature, moisture, and soil nutrients, along with biotic interactions within and between species, can all have strong influences on spatial distributions of plants and animals. Terrestrial A...

journal_title：Oecologia

authors： Potts LJ,Gantz JD,Kawarasaki Y,Philip BN,Gonthier DJ,Law AD,Moe L,Unrine JM,McCulley RL,Lee RE Jr,Denlinger DL,Teets NM

更新日期：2020-12-01 00:00:00

abstract：:Vallisneria americana was grown for six weeks in a greenhouse on relatively fertile sediment to test for factors other than nutrient limitation which may slow growth of this submersed macrophyte at pH 5. On the basis of dry mass accumulated, (1) low pH significantly depressed Vallisneria growth at constant free CO2 le...

journal_title：Oecologia

authors： Titus JE,Feldman RS,Grisé D

更新日期：1990-10-01 00:00:00

abstract：:The ability to utilize NO inf3sup- in seven high arctic plant species from Truelove Lowland, Devon Island, Canada was investigated, using an in vivo assay of maximum potential nitrate reductase (NR) activity and applications of 15N. Plant species were selected on the basis of being characteristic of nutrient-poor and ...

journal_title：Oecologia

authors： Atkin OK,Villar R,Cummins WR

更新日期：1993-11-01 00:00:00

abstract：:Identifying the drivers and evolutionary consequences of species interactions is a major goal of community ecology. Network-based analyses can provide mathematical tools to detect non-random patterns of interactions, and potentially help predicting the consequences of such patterns on evolutionary dynamics of symbioti...

journal_title：Oecologia

authors： Chagnon PL,Magain N,Miadlikowska J,Lutzoni F

更新日期：2018-07-01 00:00:00

abstract：:During summer, 1971, a massive outbreak of red tide resulted in defaunation of a previously characterized sandy, intertidal habitat in upper Old Tampa Bay, Tampa, Florida. Repopulation of the polychaete fauna was studied from August, 1971, to July, 1973. A transect composed of 4 stations running from just below mean h...

journal_title：Oecologia

authors： Dauer DM,Simon JL

更新日期：1976-06-01 00:00:00

abstract：:Prescribed burning is a major control over element cycles in Tallgrass prairie (Eastern Kansas, USA). In this paper we report potential effects of fire on nonsymbiotic nitrogen fixation. Fire resulted in additions of available P in ash, which may stimulate nitrogen fixation by terrestrial cyanobacteria. Cyanobacterial...

journal_title：Oecologia

authors： Eisele KA,Schimel DS,Kapustka LA,Parton WJ

更新日期：1989-06-01 00:00:00

abstract：:This study describes the germination responses of ten tropical dune species to several factors to which their seeds are exposed in the field. Species studied were: three sand dune endemics (Amaranthus greggii, Palafoxia lindenii, and Trachypogon gouini), three pantropical coastal species (Sesuvium portulacastrum, Spor...

journal_title：Oecologia

authors： Martínez ML,Valverde T,Moreno-Casasola P

更新日期：1992-12-01 00:00:00

abstract：:The hypothesis that cooperative breeding entails a cost in terms of transmission of ectoparasites was tested by a comparative analysis among sympatric Australian passerines. The general trend found using the allometry method and outgroup analysis indicates that contagious ectoparasites are not more common on cooperati...

journal_title：Oecologia

authors： Poiani A

更新日期：1992-12-01 00:00:00

abstract：:There is an increasing ecological interest in understanding the gradients in H(2)(18)O enrichment in leaf water (i.e. a Péclet effect), because an appreciation of the significance of the Péclet effect is important for improving our understanding of the mechanistic processes affecting the (18)O composition of leaf wate...

journal_title：Oecologia

authors： Barbour MM,Roden JS,Farquhar GD,Ehleringer JR

更新日期：2004-02-01 00:00:00

abstract：:The growth of metacommunity ecology as a subdiscipline has increased interest in how processes at different spatial scales structure communities. However, there is still a significant knowledge gap with respect to relating the action of niche- and dispersal-assembly mechanisms to observed species distributions across ...

journal_title：Oecologia

authors： McCauley SJ,Davis CJ,Relyea RA,Yurewicz KL,Skelly DK,Werner EE

更新日期：2008-11-01 00:00:00

abstract：:The responses of organisms to organic farming depend on the taxonomic group and landscape complexity. Following the intermediate landscape complexity hypothesis, organic farming can compensate for the lack of complexity in simple landscapes. Argentinian farmlands are simple with large fields and scarce linear habitat ...

journal_title：Oecologia

authors： Serafini VN,Coda JA,Contreras F,Conroy MJ,Gomez MD,Priotto JW

更新日期：2019-12-01 00:00:00

abstract：:To investigate the physiological, behavioral, and genetic contributions to growth rate, we studied the thermal sensitivity of growth rate in hatchlings of the iguanid lizards Sceloporus occidentalis and S. graciosus in the laboratory. We used a cycling thermal regime patterned after thermal environments found in natur...

journal_title：Oecologia

authors： Sinervo B,Adolph SC

更新日期：1989-03-01 00:00:00

abstract：: Fluorogenic substrate analogues (MUF substrates) are very sensitive in detecting hydrolytic enzymes. This method was adapted for the quantitative analysis of extracellular enzymes in snails and other animals. It was then used to determine cellobiase, chitobiase, protease, esterase, phosphatase and lipase in the diges...

journal_title：Oecologia

authors： Brendelberger H

更新日期：1996-12-01 00:00:00

abstract：:Herbivory can reduce plant fitness, and its effects can be increased by competition. Though numerous studies have examined the joint effects of herbivores and competitors on plant performance, these interactive effects are seldom considered in the context of plant invasions. Here, we examined variation in plant perfor...

journal_title：Oecologia

authors： Huang W,Carrillo J,Ding J,Siemann E

更新日期：2012-10-01 00:00:00

abstract：:Fruit survival patterns, from fertilization to maturation, were examined for Carya ovata and C. tomentosa in a New Jersey USA forest. We observed fruiting and shoot growth characteristics over a 3-yr period to determine: (1) the patterns of fruit survivorship (from initiation to maturity) within and among years, (2) t...

journal_title：Oecologia

authors： McCarthy BC,Quinn JA

更新日期：1992-08-01 00:00:00

abstract：:The possibility of ecosystem boundary changes in northern Brazilian Amazonia during the Holocene period was investigated using soil organic carbon isotope ratios. Determination of past and present fluctuations of the forest-savanna boundary involved the measurement of natural 13C isotope abundance, expressed as δ13C, ...

journal_title：Oecologia

authors： Desjardins T,Filho AC,Mariotti A,Girardin C,Chauvel A

更新日期：1996-12-01 00:00:00

abstract：:Laboratory feeding experiments were conducted with Dipodomys ordii and Perognathus flavus in an attempt to discover a mechanism which might result in seed size selection. There was no marked difference in the proportions of four seed types collected whether the rodents foraged in the presence or absence of one another...

journal_title：Oecologia

authors： Hutto RL

更新日期：1978-01-01 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

authors： Yamada T,Yamada Y,Okuda T,Fletcher C

更新日期：2013-07-01 00:00:00

abstract：:Eriophorum vaginatum is a characteristic species of northern peatlands and a keystone plant for cutover bog restoration. Understanding the factors affecting E. vaginatum seedling establishment (i.e. growth dynamics and allocation) under global change has practical implications for the management of abandoned mined bog...

journal_title：Oecologia

authors： Siegenthaler A,Buttler A,Grosvernier P,Gobat JM,Nilsson MB,Mitchell EA

更新日期：2013-02-01 00:00:00