Predation pressure on an imperfect Batesian micicry complex in the presence of alternative prey.

abstract：:Spatial and temporal niche differentiation are potential mechanisms of plant species' coexistence in many communities, including many grasslands. In a 6-year field experiment, a dominant prairie bunchgrass, Schizachyrium scoparium, excluded species sharing similar phenology and rooting depth, but coexisted with specie...

journal_title：Oecologia

authors： Fargione J,Tilman D

更新日期：2005-05-01 00:00:00

abstract：:The seasonal and long-term population dynamics of helminths parasitizing voles suggested that density-dependent factors might be important in the population dynamics of common species, whereas density-independent factors predominate in the regulation of the rare species. To test this, we used single and multiple regre...

journal_title：Oecologia

authors： Haukisalmi V,Henttonen H

更新日期：1990-06-01 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：:We studied behavioral mechanisms underlying the spatial distribution of Euphydryas anicia (Lepidoptera: Nymphalidae) females searching for larval host plants on a flat plain in Colorado. The rate of female movement, as represented by an empirically estimated diffusion coefficient, is affected by two factors. First, wh...

journal_title：Oecologia

authors： Odendaal FJ,Turchin P,Stermitz FR

更新日期：1989-02-01 00:00:00

abstract：:Long-term experimental systems with overlapping generations using a seed beetle, Callosobruchus chinensis, were maintained by providing 5 g of azuki beans (Vigna angularis) in two different renewal intervals: either 7 days or 10 days. The 7-day-renewal system (system 1) showed oscillatory dynamics with a constant peri...

journal_title：Oecologia

authors： Shimada M,Tuda M

更新日期：1996-01-01 00:00:00

abstract：:A number of feeding cues determine the palatability of detritus to detritivorous invertebrates. In salt marsh detritus the feeding cues include flavor provided by phenolics such as ferulic acid, pH, salinity, and nitrogen content. We examined the feeding responses to each cue by using experimental manipulations where ...

journal_title：Oecologia

authors： Valiela I,Rietsma CS

更新日期：1984-08-01 00:00:00

abstract：:Exposure to enhanced levels of ambient ultraviolet (UV) radiation (UVR) can have adverse effects on aquatic organisms including damage at the cellular and molecular level and impairment of development, fecundity and survival. Much research has been conducted on the role of the harmful UVB radiation. However, due to it...

journal_title：Oecologia

authors： Rick IP,Mehlis M,Eßer E,Bakker TC

更新日期：2014-02-01 00:00:00

abstract：:Short-term responses of producers highlight that key nutrients (e.g., N, P)-or combinations of these nutrients-limit primary production in aquatic and terrestrial ecosystems. These discoveries continue to provide highly valuable insights, but it remains important to ask whether nutrients always predominantly limit pro...

journal_title：Oecologia

authors： Darcy-Hall TL,Hall SR

更新日期：2008-04-01 00:00:00

abstract：:Caterpillars of Maculinea arion are obligate predators of the brood of Myrmica sabuleti ants. In the aboratory, caterpillars eat the largest available ant larvae, although eggs, small larvae and prepupae are also palatable. This is an efficient way to predate. It ensures that newly-adopted caterpillars consume the fin...

journal_title：Oecologia

authors： Thomas JA,Wardlaw JC

更新日期：1992-08-01 00:00:00

abstract：:We measured the response of dark respiration (R(d)) to temperature and foliage characteristics in the upper canopies of tree species in temperate rainforest communities in New Zealand along a soil chronosequence (six sites from 6 years to 120,000 years). The chronosequence provided a vegetation gradient characterised ...

journal_title：Oecologia

authors： Turnbull MH,Tissue DT,Griffin KL,Richardson SJ,Peltzer DA,Whitehead D

更新日期：2005-03-01 00:00:00

abstract：:Species-habitat relationships are an important aspect of fish life history, particularly in early ontogeny. To address the lack of information on the microhabitat use/requirements of European coarse fishes, particularly 0-group fishes in riverine systems, an empirical model was generated from data collected in the Riv...

journal_title：Oecologia

authors： Copp GH

更新日期：1992-09-01 00:00:00

abstract：:Species assembly patterns of local communities are shaped by the balance between multiple abiotic/biotic filters and dispersal that both select individuals from species pools at the regional scale. Knowledge regarding functional assembly can provide insight into the relative importance of the deterministic and stochas...

journal_title：Oecologia

authors： Kubota Y,Kusumoto B,Shiono T,Ulrich W

更新日期：2018-05-01 00:00:00

abstract：:The legume foodplants of Colias butterflies possess specific chemical components which stimulate oviposition in females of the genus. Different legumes provide different degrees of stimulation, as demonstrated by close correlation between field observations and laboratory experiments with a new behavioral assay. Sever...

journal_title：Oecologia

authors： Stanton ML

更新日期：1979-01-01 00:00:00

abstract：:The influence of short- and long-term (cohort) effects of climate and density on the life-histories of ungulates in temperate regions may vary with latitude, habitat, and management practices, but the life-histories of ungulates in the Mediterranean region are less well known. This study examined the short- and long-t...

journal_title：Oecologia

authors： Rodriguez-Hidalgo P,Gortazar C,Tortosa FS,Rodriguez-Vigal C,Fierro Y,Vicente J

更新日期：2010-10-01 00:00:00

abstract：:For some animals, the habitat which they first experience can influence the type of habitat which they select later in life and, thus, potentially their population distribution and dynamics. However, for many insect herbivores, whose natal habitat may consist of a single hostplant, the consequences of natal hostplant ...

journal_title：Oecologia

authors： Merwin AC,Inouye BD,Underwood N

更新日期：2020-06-01 00:00:00

abstract：:Plant resistance and tolerance to herbivores, parasites, pathogens, and abiotic factors may involve two types of costs. First, resistance and tolerance may be costly in terms of plant fitness. Second, resistance and tolerance to multiple enemies may involve ecological trade-offs. Our study species, the stinging nettle...

journal_title：Oecologia

authors： Puustinen S,Koskela T,Mutikainen P

更新日期：2004-03-01 00:00:00

abstract：:1. Aspects of colonization by freshwater invertebrates on artificial substrata (macrophyte models) placed in the benthos of a eutrophic lake were studied. 2. Colonization was rapid, with equilibrium occuring at about 35 days. The colonization rate curve decreased with time but extinction rate remained constant. 3. Pre...

journal_title：Oecologia

authors： Mason CF

更新日期：1978-01-01 00:00:00

abstract：:Tree leaf litter inputs to freshwater systems are a major resource and primary drivers of ecosystem processes and structure. Spatial variation in tree species distributions and forest composition control litter inputs across landscapes, but inputs to individual lentic habitat patches are determined by adjacent plant c...

journal_title：Oecologia

authors： Pintar MR,Resetarits WJ

更新日期：2017-03-01 00:00:00

abstract：CONCLUSION:For the abovementioned reasons, and with all due respect to the scholarship of Mansson and McGlade, who display a deep knowledge of thermodynamics and ecology, I cannot agree that Odum's use of energy concepts is "wholly discredited". Refinements from microscopic thermodynamics may not have been faithfully c...

journal_title：Oecologia

authors： Patten BC

更新日期：1993-04-01 00:00:00

abstract：:In order to scale up from the ecophysiological characters of individual plants to population-level questions, we need to determine if character patterns in natural populations are stable through time, and if the characters are related to growth and survival. We investigated these questions in a 3-year study for one ch...

journal_title：Oecologia

authors： Donovan LA,Ehleringer JR

更新日期：1994-12-01 00:00:00

abstract：:The potential production of estuarine interstitial microalgae from two tidal flats differing in sediment texture was determined manometrically. Sediment cores from the Southbeach tidal flat showed a maximum amount of productivity in the lower intertidal zone whereas sediment cores from Sally's Bend showed no productio...

journal_title：Oecologia

authors： Riznyk RZ,Phinney HK

更新日期：1972-09-01 00:00:00

abstract：:For unicellular organisms, a lack of effects of local species richness on ecosystem function has been proposed due to their locally high species richness and their ubiquitous distribution. High dispersal ability and high individual numbers may enable unicellular taxa to occur everywhere. Using our own and published da...

journal_title：Oecologia

authors： Hillebrand H,Watermann F,Karez R,Berninger UG

更新日期：2001-01-01 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：:Competition and facilitation are both considered major factors affecting the structure of plant assemblages, yet few studies have quantified positive, negative, and net effects simultaneously. In this study, we investigated the positive, negative, and net effects of tree saplings on the encroachment of two tree specie...

journal_title：Oecologia

authors： Kennedy PG,Sousa WP

更新日期：2006-06-01 00:00:00

abstract：:Amazon forests along a toposequence at San Carlos de Rio Negro (Venezuela) show distinct nutrient limitations depending on slope position. Soils were collected by genetic horizons and analysed to provide information on the relationships between soil P and N status and the nutrition of natural forest at three locations...

journal_title：Oecologia

authors： Tiessen H,Chacon P,Cuevas E

更新日期：1994-09-01 00:00:00

abstract：:Plant-soil feedbacks have been widely implicated as a driver of plant community diversity, and the coexistence prediction generated by a negative plant-soil feedback can be tested using the mutual invasibility criterion: if two populations are able to invade one another, this result is consistent with stable coexisten...

journal_title：Oecologia

authors： Burns JH,Brandt AJ,Murphy JE,Kaczowka AM,Burke DJ

更新日期：2017-04-01 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：:Energy metabolism (oxygen consumption) in acclimated juvenile yellow banded and unbanded Cepaea hortensis Müll. was measured at 5°, 10°, 15°, 20°, and 25°C with Englemann respirometers. Metabolic rates were also measured after abrupt temperature changes from 5° to 20° and from 25° to 10°C.Energy metabolism in the two ...

journal_title：Oecologia

authors： Steigen AL

更新日期：1979-08-01 00:00:00

abstract：:The rarity of long-range seed dispersal (telechory) and commonness of antitelechory in desert plants are examined in light of contemporary mathematical theories of the evolution of dispersal and germination behaviors. Analysis of dispersal 3-habitat relationships in the flora of Israel supports the general trend towar...

journal_title：Oecologia

authors： Fllner S,Shmida A

更新日期：1981-10-01 00:00:00

abstract：:The effects of floral morphology on rates of pollen removal and deposition by different pollinators in generalist plant species are not well known. We studied pollination dynamics in wild radish, Raphanus raphanistrum, a plant visited by four groups of pollinators: honey bees, small native bees, butterflies, and syrph...

journal_title：Oecologia

authors： Conner JK,Davis R,Rush S

更新日期：1995-10-01 00:00:00