Ontogenetic changes in sensitivity to nutrient limitation of tadpole growth.

abstract：:Climate change is affecting both the volume and distribution of precipitation, which in turn is expected to affect the growth and reproduction of plant populations. The near ubiquity of local adaptation suggests that adaptive differentiation may have important consequences for how populations are affected by and respo...

journal_title：Oecologia

authors： Gorton AJ,Tiffin P,Moeller DA

更新日期：2019-08-01 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：:We examined how different exploratory behavioral types of largemouth bass responded to differing prey communities by determining effects on growth, survival and diet in experimental ponds. We found evidence that non-explorer largemouth bass target young-of-year bluegill early on in life, but bluegill were not an impor...

journal_title：Oecologia

authors： Nannini MA,Wahl DH

更新日期：2016-10-01 00:00:00

abstract：:1. In an attempt to evaluate the importance of individual daily habits to a freeliving animal, foraging behaviour of kestrels was observed continuously for days in sequence in open country. Data obtained in 2,942 observation hours were used. Flight-hunting was the prominent foraging technique yielding 76% of all prey ...

journal_title：Oecologia

authors： Rijnsdorp A,Daan S,Dijkstra C

更新日期：1981-09-01 00:00:00

abstract：:Rodents of the family Heteromyidae are proficient gatherers and hoarders of seeds. A major component of their adaptive specialization for harvesting and transporting seeds is their spacious, fur-lined cheek pouches. Precise measurements of cheek pouch capacities are essential if ecologists are to understand the foragi...

journal_title：Oecologia

authors： Vander Wall SB,Longland WS,Pyare S,Veech JA

更新日期：1997-12-01 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：:The tadpoles of two anuran species, Rana sylvatica and Xenopus laevis, were fed various concentrations of two algae, Anabaena sphaerica (large filaments) and Chlorella pyrenoidosa (small unicells). Filtering rates were measured indirectly with a Coulter Counter system; buccal pumping rates were observed directly.Exper...

journal_title：Oecologia

authors： Seale DB,Wassersug RJ

更新日期：1979-01-01 00:00:00

abstract：:The amount of calcium in Eucalyptus diversicolor (karri) ecosystems is high in comparison with other eucalypt forest ecosystems in Australia. A large proportion of this calcium is present as crystalline Ca oxalate. Whewellite (CaC2O4·H2O) accumulates in leaf tissue of the over- and understorey species. Up to 70% of th...

journal_title：Oecologia

authors： O'Connell AM,Malajczuk N,Gailitis V

更新日期：1983-02-01 00:00:00

abstract：:The use of the landscape by animals is predicted to be a function of their body size. However, empirical data relating these two variables from an array of body sizes within a single mammalian community are scarce. We tested this prediction by assessing landscape use of mammals by analyzing strontium (Sr) isotope sign...

journal_title：Oecologia

authors： Feranec RS,Hadly EA,Paytan A

更新日期：2007-10-01 00:00:00

abstract：:Patterns of β-diversity can provide insight into forces shaping community assembly. We analyzed species-rich insect assemblages in two reserve fragments that had once been part of one contiguous Mediterranean coastal pine forest. Local environments are still similar across both fragments, but their landscape context d...

journal_title：Oecologia

authors： Uhl B,Wölfling M,Fiedler K

更新日期：2021-02-01 00:00:00

abstract：:In a Danish heathland invasion of oak shrub has taken place, the succession rate being approximately 300 m during the last 100 years. The colonisation has occurred in steps related to the delay time between seedling stage and fertility stage. Seedlings are often found in clusters originating from caches probably made ...

journal_title：Oecologia

authors： Jensen TS,Nielsen OF

更新日期：1986-09-01 00:00:00

abstract：:In this paper, we test the mid-domain hypothesis as an explanation for observed patterns of flowering diversity in two sub-alpine communities of insect-pollinated plants. Observed species richness patterns showed an early-season increase in richness, a mid-season peak, and a late-season decrease. We show that a "mid-d...

journal_title：Oecologia

authors： Morales MA,Dodge GJ,Inouye DW

更新日期：2005-01-01 00:00:00

abstract：:Although the selective loss of individuals susceptible to disease can favor the evolution of female preference for older males, the interrelationship between age, infection, longevity, and mating success remains poorly characterized in natural populations. In a longitudinal study of 61 male common yellowthroats (Geoth...

journal_title：Oecologia

authors： Freeman-Gallant CR,Taff CC

更新日期：2017-08-01 00:00:00

abstract：:Controls of fine dynamics were investigated in a Pinus palustris Mill. (longleaf pine) woodland subjected to two understory vegetation treatments (control versus removed) and four overstory treatments (no gap control, and canopy gaps of three sizes with constant total gap area per stand). Fine root (<2 mm diameter) dy...

journal_title：Oecologia

authors： Jones RH,Mitchell RJ,Stevens G,Pecot S

更新日期：2003-01-01 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：:General scaling rules or constants for metabolic and structural plant allometry as assumed by the theory of Euclidian geometric scaling (2/3-scaling) or metabolic scaling (3/4-scaling) may meet human's innate propensity for simplicity and generality of pattern and processes in nature. However, numerous empirical works...

journal_title：Oecologia

authors： Pretzsch H,Dieler J

更新日期：2012-07-01 00:00:00

abstract：:Reproductive traits are tightly linked to plant fitness and may therefore be mechanisms driving biological invasions, including the greater success of more phylogenetically novel introduced species in some systems. We present a phylogenetic comparative analysis of "Baker's law'', that introduced plants with the abilit...

journal_title：Oecologia

authors： Burns JH,Ashman TL,Steets JA,Harmon-Threatt A,Knight TM

更新日期：2011-08-01 00:00:00

abstract：:The effects of simulated goose grazing on Phleum pratense plants were tested in an Iceland hayfield during the spring goose staging period (19 April-11 May 1997). Plants in an area exclosed from the influence of grazing and the nutrient effects of goose faeces were subject to the removal of the youngest lamina once, t...

journal_title：Oecologia

authors： Fox AD,Kristiansen JN,Stroud DA,Boyd H

更新日期：1998-08-01 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：:Southern grasshopper mice (Onychomys torridus) were allowed to junt buried mealworms in a laboratory arena. The prey were arranged in two patterns, one aggregated and one relatively dispersed. Mice captured more prey from the dispersed treatment in the 2 h experiment, a result that can be attributed to both the greate...

journal_title：Oecologia

authors： Taylor RJ

更新日期：1977-09-01 00:00:00

abstract：:Trirhabda bacharidis (Weber) (Chrysomelidae), a univoltine, monophagous beetle is the dominant herbivore on Baccharis halimifolia (Compositae), a woody, perennial shrub that leafs out in early spring and retains its leaves into November. Available plant biomass increases during the season but T. bacharidis feeds only ...

journal_title：Oecologia

authors： Kraft SK,Denno RF

更新日期：1982-02-01 00:00:00

abstract：:The increasing popularity of stable isotope analysis (SIA) as an ecological research tool and the ease of automated analysis have created a knowledge gap between ecologists using SIA and the operators of isotope ratio mass spectrometry (IRMS) equipment. This has led to deterioration in the understanding of IRMS method...

journal_title：Oecologia

authors： Jardine TD,Cunjak RA

更新日期：2005-08-01 00:00:00

abstract：:The costs and benefits of resource integration in Hydrocotyle bonariensis were examined by comparing severed and intact clones grown across multiple resource gradients. Basipetal movement of water, nitrogen and photosynthates was demonstrated to occur between two rhizome branch systems interconnecting hundreds of rame...

journal_title：Oecologia

authors： Evans JP

更新日期：1991-04-01 00:00:00

abstract：:Provenance translocations of tree species are promoted in forestry, conservation, and restoration in response to global climate change. While this option is driven by adaptive considerations, less is known of the effects translocations can have on dependent communities. We investigated the relative importance and cons...

journal_title：Oecologia

authors： Gosney BJ,Potts BM,Forster LG,Whiteley C,O'Reilly-Wapstra JM

更新日期：2021-01-20 00:00:00

abstract：:Carotenoids are antioxidant pigments involved in several physiological processes and signalling in animals that cannot synthesise them and therefore must acquire them from food. We experimentally investigated the effects of carotenoid availability in the diet during egg laying on antioxidant deposition in egg yolk and...

journal_title：Oecologia

authors： Biard C,Surai PF,Møller AP

更新日期：2005-06-01 00:00:00

abstract：:Selection of sites for oviposition when the risk of predation by green frogs was variable studied in tandems of the damselfly Pyrrhosoma nymphula. In the absence of predators the number of tandems landing increased with the size of the oviposition site and with the number of pairs already present. Pairs approaching an...

journal_title：Oecologia

authors： Rehfeldt GE

更新日期：1990-12-01 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：:It has commonly been assumed that pollinator energy intake increases with flowering plant density, and visitation to flowers should therefore be higher in denser stands. I therefore investigated the relationship between flight distance and flight time for bumblebees and butterflies foraging on Senecio integerrimus and...

journal_title：Oecologia

authors： Schmitt J

更新日期：1983-10-01 00:00:00

abstract：:The foraging behavior of Mesocyclops edax in artificial patches of high and low prey density was examined. In low density patches Mesocyclops swam in an irregular curvilinear path with little or no looping behavior. In high density patches Mesocyclops exhibited extensive horizontal and vertical looping behavior. Horiz...

journal_title：Oecologia

authors： Williamson CE

更新日期：1981-09-01 00:00:00

abstract：:Spatial and temporal variation in resource distribution affect the movement and foraging behavior of many animals. In the case of animal-dispersed trees, numerous studies have addressed masting-the synchronized variation in seed production between years-but the fitness consequences of spatial variation in seed product...

journal_title：Oecologia

authors： Pesendorfer MB,Koenig WD

更新日期：2016-05-01 00:00:00