Basal metabolic rate and the intrinsic rate of increase: An empirical and theoretical reexamination.

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：:Behavioral games predators play among themselves may have profound effects on behavioral games predators play with their prey. We studied the behavioral game between predators and prey within the framework of social foraging among predators. We tested how conspecific interactions among predators (little egret) change ...

journal_title：Oecologia

authors： Vardi R,Abramsky Z,Kotler BP,Altstein O,Rosenzweig ML

更新日期：2017-07-01 00:00:00

abstract：:The identification of potential competitors has been driven by the concept of limiting similarity. Lacking are explicit tests of interaction strength among morphologically similar and dissimilar species. I used the mottled sculpin, Cottus bairdi, as a focal species in an artificial stream experiment designed to compar...

journal_title：Oecologia

authors： Resetarits WJ Jr

更新日期：1995-09-01 00:00:00

abstract：:Fungal feeding soil invertebrates feed on a wide spectrum of fungal species suggesting that mixed diets increase fitness. We investigated relationships between food preferences for seven saprophytic fungal species/forms and fitness parameters (mortality, growth, time to reproduction, reproduction, egg size) in two Col...

journal_title：Oecologia

authors： Scheu S,Simmerling F

更新日期：2004-05-01 00:00:00

abstract：:Gas exchange measurements of two arctic tundra plants, Dupontia fischeri and Carex aquatilis, and two alpine tundra species, Deschampsia caespitosa and Geum rossii, were conducted under a range of atmospheric and soil moisture stress conditions to determine if photosynthetic adaptations to water stress may play a role...

journal_title：Oecologia

authors： Johnson DA,Caldwell MM

更新日期：1975-06-01 00:00:00

abstract：:Developing leaves that are soft, with high concentrations of resources, can be particularly vulnerable to herbivore damage. Since a developing leaf cannot be very tough, given the constraints of cell expansion, the major form of protection is likely to be chemical defence. We investigated changes in concentration of h...

journal_title：Oecologia

authors： Brunt C,Read J,Sanson GD

更新日期：2006-07-01 00:00:00

abstract：:Compared to terrestrial environments, grazing intensity on belowground plant parts may be particularly strong in aquatic environments, which may have great effects on plant-community structure. We observed that the submerged macrophyte, Potamogeton pectinatus, which mainly reproduces with tubers, often grows at interm...

journal_title：Oecologia

authors： Sandsten H,Klaassen M

更新日期：2008-06-01 00:00:00

abstract：:The aquatic larvae of two species of salamanders coexist as a result of differences in their competitive abilities: Ambystoma talpoideum is a superior aggressor, whereas A. maculatum is a superior forager. I examined the behavioral mechanisms that permit these species to coexist with their predatory congener, A. opacu...

journal_title：Oecologia

authors： Walls SC

更新日期：1995-01-01 00:00:00

abstract：:Thirty-four species of marine macroalgae from around St. Andrews, Scotland, have been assayed for their external activity and thirty-three species for their total activity of carbonic anhydrase. Activity was detected in all the Rhodophyta tested apart from Chondrus crispus, but was absent in Codium fragile, Enteromorp...

journal_title：Oecologia

authors： Giordano M,Maberly SC

更新日期：1989-12-01 00:00:00

abstract：:In flowering plants, many dioecious species display a certain degree of sexual dimorphism in non-reproductive traits, but this dimorphism tends to be much less striking than that found in animals. Sexual size dimorphism in plants may be limited because competition for light in crowded environments so strongly penalise...

journal_title：Oecologia

authors： Labouche AM,Pannell JR

更新日期：2016-07-01 00:00:00

abstract：:As an extension of earlier investigations, the mating calls ofHyla arborea kretensis, Hyla a. molleri, andHyla a. sarda were studied, and variations in the calls with air temperature were determined. The mating calls of these species exhibit the typical structure, made up of short pulses of varying amplitude. The call...

journal_title：Oecologia

authors： Schneider H

更新日期：1974-03-01 00:00:00

abstract：:The induction of diapause can be adaptive for egg survival during unfavorable conditions, while direct development can be advantageous under favorable conditions by allowing additional generations to exploit abundant resources. Therefore, the physiological capability of a female to respond to environmental cues indica...

journal_title：Oecologia

authors： Huestis DL,Marshall JL

更新日期：2006-01-01 00:00:00

abstract：:It has been suggested that soil nitrification is inhibited as a succession develops. This hypothesis was examined in a sub tropical rain forest succession containing five successional stages. Soil mineral nitrogen was measured at the time of collection and after 20 days incubation in the laboratory or field. Sampling ...

journal_title：Oecologia

authors： Lamb D

更新日期：1980-01-01 00:00:00

abstract：:Mating durations of copepods were found to differ significantly between fishless high-altitude waters and lowland lakes containing fish. In lowland species the whole mating process was completed within a few minutes, but it averaged over an hour in high-altitude species. Alpine copepods showed a prolonged post-copulat...

journal_title：Oecologia

authors： Jersabek CD,Luger MS,Schabetsberger R,Grill S,Strickler JR

更新日期：2007-09-01 00:00:00

abstract：:Why can alien species succeed in environments to which they have had no opportunity to adapt and even become more abundant than many native species? Ecological theory suggests two main possible answers for this paradox: competitive superiority of exotic species over native species and opportunistic use of ecological o...

journal_title：Oecologia

authors： Sol D,Bartomeus I,Griffin AS

更新日期：2012-06-01 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：:In the sessile hermit crab Discorsopagurus schmitti, four different feeding techniques are described: antennary beating, body-trap feeding, feeding on wafting particles, and scraping. This species' potential for being a generalist in its diet and opportunistic in its foraging behavior certainly opened the way for a se...

journal_title：Oecologia

authors： Gherardi F

更新日期：1994-07-01 00:00:00

abstract：:Functional diversity has been identified as a key to understanding ecosystem and community functioning. However, due to the lack of a sound definition its nature and measurement are still poorly understood. In the same way that species diversity can be split into species richness and species evenness, so functional di...

journal_title：Oecologia

authors： Mouillot D,Mason WH,Dumay O,Wilson JB

更新日期：2005-01-01 00:00:00

abstract：:Pre-hatching developmental times for prosobranch gastropods are greatly influenced by temperature and taxonomic affinity. If the data used here (including all available data from the Muricacea) are a representative sample, then reasonably accurate estimates of developmental time can be obtained for most prosobranchs k...

journal_title：Oecologia

authors： Spight TM

更新日期：1975-03-01 00:00:00

abstract：:Intraspecific positive relationships between abundance and occupancy are observed for many species, suggesting that the same processes drive local and regional species dynamics. Two main groups of mechanisms explain this relationship: spatiotemporal variation in local population growth rates due to variation in habita...

journal_title：Oecologia

authors： Östman Ö

更新日期：2011-03-01 00:00:00

abstract：:Carbon allocation demands from root-nodulating nitrogen-fixing bacteria (NFB) can modulate the host plant's chemical phenotype, with strong bottom-up effects on herbivores. In contrast to well-studied rhizobia, the effects of other important NFB on plant chemistry and herbivory are much less understood. Here, combinin...

journal_title：Oecologia

authors： Ballhorn DJ,Elias JD,Balkan MA,Fordyce RF,Kennedy PG

更新日期：2017-06-01 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：:More than 500 species of the Poaceae are found in Kenya, East Africa. Eighteen of twenty-seven tribes are exclusively (except the Paniceae and Danthonieae) of the C3 photosynthetic type. A floristic analysis of low altitude grasslands suggests that nearly all species at these low altitudes are of the C4 photosynthetic...

journal_title：Oecologia

authors： Tieszen LL,Senyimba MM,Imbamba SK,Troughton JH

更新日期：1979-01-01 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：:Spatiotemporal variation in the interactions among plants and animals is widespread; yet our conceptual and empirical understanding of this variation is limited to a few types of visitors, mainly herbivores, pollinators, seed predators, and seed dispersers. Despite the ubiquity of nectar robbing and the strength of it...

journal_title：Oecologia

authors： Irwin RE,Maloof JE

更新日期：2002-12-01 00:00:00

abstract：:Amphibian life history traits are affected by temperature and precipitation. Yet, connecting these relationships to population growth, especially for multiple populations within a species, is lacking and precludes our understanding of amphibian population dynamics and distributions. Therefore, we constructed integral ...

journal_title：Oecologia

authors： Caruso NM,Staudhammer CL,Rissler LJ

更新日期：2020-08-01 00:00:00

abstract：:In southeastern Arizona, Prosopis juliflora (Swartz) DC. and Quercus emoryi Torr. are the dominant woody species at grassland/woodland boundaries. The stability of the grassland/woodland boundary in this region has been questioned, although there is no direct evidence to confirm that woodland is encroaching into grass...

journal_title：Oecologia

authors： McPherson GR,Boutton TW,Midwood AJ

更新日期：1993-02-01 00:00:00

abstract：:The population dynamics of Antarctic seabirds are influenced by variations in winter sea ice extent and persistence; however, the type of relationship differs according to the region and the demographic parameter considered. We used annual presence/absence data obtained from 1,138 individually marked birds to study th...

journal_title：Oecologia

authors： Ballerini T,Tavecchia G,Olmastroni S,Pezzo F,Focardi S

更新日期：2009-08-01 00:00:00

abstract：:Parasites can generate complex life history trade-offs in a host. In this study, we experimentally reduced the infection level of intestinal helminth parasites in the Taiwan field mouse (Apodemus semotus) to test (1) whether parasite richness and load are biased towards male or female mice (sex-biased parasitism) and ...

journal_title：Oecologia

authors： Lo HY,Shaner PL

更新日期：2015-03-01 00:00:00

abstract：:Climate change models predict that the range of the world's smallest tortoise, Homopus signatus signatus, will aridify and contract in the next decades. To evaluate the effects of annual variation in rainfall on the growth of H. s. signatus, we recorded annual growth rates of wild individuals from spring 2000 to sprin...

journal_title：Oecologia

authors： Loehr VJ,Hofmeyr MD,Henen BT

更新日期：2007-08-01 00:00:00