Comparative genet survival after fire in woody Mediterranean species.

abstract：:Factors affecting oophagy among siblings in the land snail Arianta arbustorum were studied in 3 populations from different altitudes in Switzerland. The degree of egg cannibalism in A. arbustorum is a function of hatching asynchrony since the earliest hatched snails will devour the unhatched eggs in the same clutch. C...

journal_title：Oecologia

authors： Baur B,Baur A

更新日期：1986-09-01 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

authors： Martineau J,Pothier D,Fortin D

更新日期：2016-07-01 00:00:00

abstract：:Mature male parr successfully fertilized eggs of anadromous female Atlantic salmon, Salmo salar, in competition with anadromous males under simulated natural conditions. Mating situations were created in which mature male parr and anadromous males competing for the opportunity to spawn with an anadromous female differ...

journal_title：Oecologia

authors： Hutchings JA,Myers RA

更新日期：1988-03-01 00:00:00

abstract：:Global climate change is expected to affect terrestrial ecosystems in a variety of ways. Some of the more well-studied effects include the biogeochemical feedbacks to the climate system that can either increase or decrease the atmospheric load of greenhouse gases such as carbon dioxide and nitrous oxide. Less well-stu...

journal_title：Oecologia

authors： Butler SM,Melillo JM,Johnson JE,Mohan J,Steudler PA,Lux H,Burrows E,Smith RM,Vario CL,Scott L,Hill TD,Aponte N,Bowles F

更新日期：2012-03-01 00:00:00

abstract：:To preserve biodiversity and ecosystem functions in a globally changing world it is crucial to understand the effect of land use on ecosystem processes such as pollination. Floral colouration is known to be central in plant-pollinator interactions. To date, it is still unknown whether land use affects the colouration ...

journal_title：Oecologia

authors： Binkenstein J,Renoult JP,Schaefer HM

更新日期：2013-10-01 00:00:00

abstract：:Stemflow inputs of magnesium and potassium were measured from 57 canopy trees representing eight species under heavy rainfall conditions in two tropical forest sites in northeast Queensland, Australia. In the premontane tropical moist forest site on the Atherton Tableland, the stemflow input per unit trunk basal area ...

journal_title：Oecologia

authors： Herwitz SR

更新日期：1986-10-01 00:00:00

abstract：:This paper discusses the interactions among prefire shrub abundance, soil moisture, and plant and animal species on postfire seedling establishment in mixed chparral in southern California. Postfire germination and survival of seedlings in a stand dominated by a facultative seeder (Adenostoma fasciculatum) and by an o...

journal_title：Oecologia

authors： Moreno JM,Oechel WC

更新日期：1992-04-01 00:00:00

abstract：:In the stream-dwelling isopod Lirceus fontinalis, males and females engage in a precopulatory mate guarding phase prior to mating. We examined the energetic costs of mate guarding behavior in males by separately assaying glycogen and lipid content at different time increments following mating. We found that males that...

journal_title：Oecologia

authors： Sparkes TC,Keogh DP,Pary RA

更新日期：1996-04-01 00:00:00

abstract：:We compared prefledging growth, energy expenditure, and time budgets in the arctic-breeding red knot (Calidris canutus) to those in temperate shorebirds, to investigate how arctic chicks achieve a high growth rate despite energetic difficulties associated with precocial development in a cold climate. Growth rate of kn...

journal_title：Oecologia

authors： Schekkerman H,Tulp I,Piersma T,Visser GH

更新日期：2003-02-01 00:00:00

abstract：:Sex- and age-dependence in recruitment and dispersal are often explained by costs arising from competition for holding a breeding territory over the years-a typical feature of species living in stable habitats. For instance, long-lived birds with male territoriality often exhibit large variation in recruitment age and...

journal_title：Oecologia

authors： Acker P,Francesiaz C,Béchet A,Sadoul N,Lessells CM,Pijl AS,Besnard A

更新日期：2018-01-01 00:00:00

abstract：:A model is presented that simulates nitrogen uptake and response to nitrogen deficiency by a growing annual plant canopy. It is a descriptive model as it is not based on a detailed definition of the biochemical processes involved. It does incorporate a considerable amount of experimental knowledge about these processe...

journal_title：Oecologia

authors： Seligman NG,van Keulen H,Goudriaan J

更新日期：1975-09-01 00:00:00

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：:Fluctuations in the abundance of main prey species might shape animal communities, by inducing numerical responses and dietary shifts in predators. Whether numerical responses and dietary shifts differ among individuals of different age and sex has so far gained little attention. These differences could affect how muc...

journal_title：Oecologia

authors： Masoero G,Laaksonen T,Morosinotto C,Korpimäki E

更新日期：2020-03-01 00:00:00

abstract：:Interspecific competition is assumed to have a strong influence on the population dynamics of competing species, but is not easily demonstrated for mobile species in the wild. In the Florida Keys (USA), anecdotal observations have long pointed to an inverse relationship in abundance of two large decapod crustaceans fo...

journal_title：Oecologia

authors： Behringer DC,Hart JE

更新日期：2017-05-01 00:00:00

abstract：:A traditional view of diverse floral traits is that they reflect differences in foraging preferences of pollinators. The role of pollinators in the evolution of floral traits has been questioned recently by broad community surveys, especially studies concerning variation in pollinator assemblages and visitation freque...

journal_title：Oecologia

authors： Gong YB,Huang SQ

更新日期：2011-07-01 00:00:00

abstract：:The up-regulation of secondary metabolic pathways following herbivore attack and the subsequent reduction in herbivore performance have been identified in numerous woody plant species. Eucalypts constitutively express many secondary metabolites in the leaves, including terpenes and formylated phloroglucinol compounds ...

journal_title：Oecologia

authors： Henery ML,Wallis IR,Stone C,Foley WJ

更新日期：2008-07-01 00:00:00

abstract：:Severe droughts may alter the reproductive phenology of tropical tree species, but our understanding of these effects has been hampered by confounded variation in drought, light and other factors during natural drought events. We used a large-scale experimental reduction of throughfall in an eastern-central Amazon for...

journal_title：Oecologia

authors： Brando P,Ray D,Nepstad D,Cardinot G,Curran LM,Oliveira R

更新日期：2006-11-01 00:00:00

abstract：:The tree species Xylocarpus granatum is commonly described as occurring in the upper intertidal zone of mangrove forests, but mature trees are occasionally found at lower elevations. In the Utwe River basin, on the Pacific island of Kosrae, we investigated the relative importance of several biotic and abiotic factors ...

journal_title：Oecologia

authors： Allen JA,Krauss KW,Hauff RD

更新日期：2003-03-01 00:00:00

abstract：:We determined the effects of defoliation by a graminivorous grasshopper on the foliage quality of the C3 plant, western wheatgrass (Pascopyrum smithii [Rydb] A. Love). Additionally, we determined the effects of this defoliation upon the subsequent feeding of the graminivorous grasshopper Phoetaliotes nebrascensis Thom...

journal_title：Oecologia

authors： Redak RA,Capinera JL

更新日期：1994-11-01 00:00:00

abstract：:Individual male and female Bufo woodhousei spent only two or three nights of the several week breeding season in the pond. In spite of the continual arriving and leaving of individuals the operational sex ratio (the number of females available to mate/number of males attempting to mate) varied little, either temporall...

journal_title：Oecologia

authors： Woodward BD

更新日期：1984-05-01 00:00:00

abstract：:Three-to-five-year population oscillations of northern small rodents are usually synchronous over hundreds of square kilometers. This regional synchrony could be due to similarity in climatic factors, or due to nomadic predators reducing the patches of high prey density close to the average density of a larger area. W...

journal_title：Oecologia

authors： Norrdahl K,Korpimäki E

更新日期：1996-09-01 00:00:00

abstract：:From 1997 to 1999, we monitored the reproductive success of individual rufous-crowned sparrows (Aimophila ruficeps) in coastal sage scrub habitat of southern California, USA. Annual reproductive output of this ground-nesting species varied strongly with annual variation in rainfall, attributed to the El Niño-Southern ...

journal_title：Oecologia

authors： Morrison SA,Bolger DT

更新日期：2002-11-01 00:00:00

abstract：:Northern hemispheric background concentrations of ozone are increasing, but few studies have assessed the ecological significance of these changes for grasslands of high conservation value under field conditions. We carried out a 3-year field experiment in which ozone was released at a controlled rate over three exper...

journal_title：Oecologia

authors： Wedlich KV,Rintoul N,Peacock S,Cape JN,Coyle M,Toet S,Barnes J,Ashmore M

更新日期：2012-04-01 00:00:00

abstract：:Ant metapleural glands secrete surface antibiotics that affect pollen as well as bacteria and fungi. This may be one reason why ant pollination is rare. It is predicted that pollination by ants is possible only in the presence of certain ant and/or plant traits. Two traits are investigated; first, absence of the metap...

journal_title：Oecologia

authors： Peakall R,Angus CJ,Beattie AJ

更新日期：1990-10-01 00:00:00

abstract：:Synchronous leaf production has been proposed as a mechanism to reduce herbivore damage to young leaves by satiating herbivores. To test this hypothesis, I measured leaf production, leaf survivorship, and herbivore damage on juveniles of Gustavia superba (H.B.K.) Berg (Lecythidaceae), in two sites in Central Panama. L...

journal_title：Oecologia

authors： Aide TM

更新日期：1991-12-01 00:00:00

abstract：:The ostracod Cyprideis torosa Jones, 1850 is a dominant species in the meiofauna of brackish water habitats. Its production in the field over a five-year period has been calculated using two production models. The first model uses the age-distribution of shells preserved in the sediment to assess the stage-specific mo...

journal_title：Oecologia

authors： Herman PM,Heip C,Vranken G

更新日期：1983-06-01 00:00:00

abstract：:Climate change is expected to reduce annual precipitation by 20% and increase its standard deviation by 20% in the eastern Mediterranean. We have examined how these changes may affect herbaceous aboveground net primary production (ANPP) and its inter-annual coefficient of variation (CV) in natural rangelands along a d...

journal_title：Oecologia

authors： Golodets C,Sternberg M,Kigel J,Boeken B,Henkin Z,Seligman NG,Ungar ED

更新日期：2015-04-01 00:00:00

abstract：:Isoprene emission from plants represents one of the principal biospheric controls over the oxidative capacity of the continental troposphere. In the study reported here, the seasonal pattern of isoprene emission, and its underlying determinants, were studied for aspen trees growing in the Rocky Mountains of Colorado. ...

journal_title：Oecologia

authors： Monson RK,Harley PC,Litvak ME,Wildermuth M,Guenther AB,Zimmerman PR,Fall R

更新日期：1994-09-01 00:00:00

abstract：:In this study we tested the hypothesis that the presence of chemical stimuli from a hungry predator would initiate anti-predator responses, while stimuli from a satiated predator would not. We used chemical stimuli released from starved perch (Perca fluviatilis) and from satiated perch (predator). As prey we used adul...

journal_title：Oecologia

authors： Åbjörnsson K,Wagner BM,Axelsson A,Bjerselius R,Olsén KH

更新日期：1997-07-01 00:00:00

abstract：:Stable carbon and nitrogen isotope ratios in autotrophs, aquatic invertebrates and fishes from the Orinoco River floodplain of Venezuela reveal that microalgae, including both phytoplankton and epiphytic (attached) forms, are predominant energy sources for many aquatic animals, even though aquatic vascular plants are ...

journal_title：Oecologia

authors： Hamilton SK,Lewis WM Jr,Sippel SJ

更新日期：1992-03-01 00:00:00