Abstract:
:Animals with high metabolic rates are believed to have high rates of carbon and nitrogen isotopic incorporation. We hypothesized that (1) chronic exposure to cold, and hence an increase in metabolic rate, would increase the rate of isotopic incorporation of both 13C and 15N into red blood cells; and (2) that the rate of isotopic incorporation into red blood cells would be allometrically related to body mass. Two groups of sparrows were chronically exposed to either 5 or 22 degrees C and switched from a 13C-depleted C3-plant diet to a more 13C-enriched C4-plant one. We used respirometry to estimate the resting metabolic rate (VO2) of birds exposed chronically to our two experimental temperatures. The allometric relationship between the rate of 13C incorporation into blood and body mass was determined from published data. The (VO2) of birds at 5 degrees C was 1.9 times higher than that of birds at 22 degrees C. Chronic exposure to a low temperature did not have an effect on the rate of isotopic incorporation of 15N save for a very small effect on the incorporation of 13C. The isotopic incorporation rate of 13C was 1.5 times faster than that of 15N. The fractional rate of 13C incorporation into avian blood was allometrically related to body mass with an exponent similar to -1/4. We conclude that the relationship between metabolic rate and the rate of isotopic incorporation into an animal's tissues is indirect. It is probably mediated by protein turnover and thus more complex than previous studies have assumed.
journal_name
Oecologiajournal_title
Oecologiaauthors
Carleton SA,Martínez del Rio Cdoi
10.1007/s00442-005-0066-8subject
Has Abstractpub_date
2005-06-01 00:00:00pages
226-32issue
2eissn
0029-8549issn
1432-1939journal_volume
144pub_type
杂志文章相关文献
OECOLOGIA文献大全abstract::The effect of malarial parasitism on the ability of male western fence lizards, Sceloporus occidentalis, to compete for access to females was assessed experimentally. Pairs of male lizards, one infected with the malarial parasite, Plasmodium mexicanum, and the other not infected, were matched by size and color and pla...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/BF00385255
更新日期:1987-09-01 00:00:00
abstract::Predation by Saduria entomon on the depositfeeding amphipods Monoporeia (=Pontoporeia) affinis and Pontoporeia femorata was studied in laboratory experiments. Prey vulnerabilities were compared in singleprey treatments and in mixed-prey treatments, where the proportions of the two species were varied at one total dens...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/BF00317777
更新日期:1992-08-01 00:00:00
abstract::To examine the importance of Na+ and Cl- to osmotic adjustment in a salt-tolerant ecotype of the C4 nonhalophyte Andropogon glomeratus, plants were watered with sorbitol, a neutral osmoticum, and synthetic seawater, for five days. Gas exchange measurements were made during the course of the watering treatment and duri...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/BF00378043
更新日期:1988-11-01 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
pub_type: 杂志文章
doi:10.1007/s00442-011-2203-x
更新日期:2012-06-01 00:00:00
abstract::The mycobiont of the high-light-susceptible forest lichen Lobaria pulmonaria was shown to deposit brown, melanic compounds in the outer layer of the upper cortex, depending on the long-term level of solar radiation in its natural habitat. Furthermore, pale thalli from a shady habitat produced melanic compounds after t...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/s004420000541
更新日期:2001-02-01 00:00:00
abstract::From 1985-1987, patterns of fruit and seed set were studied in a population of mayapple (Podophyllum peltatum), a clonal, self-incompatible herb found in deciduous woods in eastern North America. Mayapple flowers do not produce nectar, but depend on infrequent visits by nectar-seeking queen bumble bees for pollination...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/BF00317156
更新日期:1992-04-01 00:00:00
abstract::In this study we assessed the effectiveness of rodents as dispersers of Quercus ilex in a patchy landscape in southeastern Spain. We experimentally followed the fates of 3,200 marked and weighed acorns from dispersal through the time of seedling emergence over three years. Rodents handled about 99% of acorns, and disp...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/s00442-007-0928-3
更新日期:2008-03-01 00:00:00
abstract::The optimal strategy in the design of nature reserves is investigated by means of the theory of island biogeography. Some previous results are revised. A new form of the incidence functions is presented. Their merit is that they do not ignore the minimum area requirements, they are more flexible, and in a number of in...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/BF00388085
更新日期:1983-08-01 00:00:00
abstract::Plasticity of plant traits is commonly quantified by comparing different phenotypes at the same age. In this paper, we present a method in which the effect of resource conditions on plant weight is used as a basis for quantifying the plasticity of individual plant traits. Abutilon theophrasti individuals were grown in...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/BF00378741
更新日期:1989-03-01 00:00:00
abstract::The principal function of isoprene biosynthesis in plants remains unclear, but emission rates are positively correlated with temperature and light, supporting a role for isoprene in maintaining photosynthesis under transient heat and light stress from sunflecks. Isoprene production is also inversely correlated with CO...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/s00442-011-1947-7
更新日期:2011-05-01 00:00:00
abstract::In the simultaneously hermaphroditic marine fish, Serranus subligarius, male role individuals are known to pair spawn, group spawn and streak spawn. While the effects of these common mating tactics on mating success in the male role have been well studied, their consequences for the reproductive success of the individ...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/s00442-012-2307-y
更新日期:2012-10-01 00:00:00
abstract::Disturbance is now recognized as a key ecosystem process but few studies have examined its indirect effects on individuals in a population or its relationship to ecological dominance in a community. Using an ecologically dominant small mammal population in experimentally burned habitat as a model, I empirically tested...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/s00442-011-1925-0
更新日期:2011-08-01 00:00:00
abstract::The influence of irrigation and nitrogen fertilization in early summer on root and shoot growth of Atriplex confertifolia, a C4 shrub species, was examined in a cold-winter desert community in northern Utah. Soil water and xylem pressure potentials were monitored during the summer period.At the time of watering the su...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/BF00344912
更新日期:1978-01-01 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
pub_type: 杂志文章
doi:10.1007/BF00341465
更新日期:1994-07-01 00:00:00
abstract::Plasticity in water-use efficiency (WUE) was examined in populations of Picea glauca (Moench) Voss and P. sitchensis (Bong.) Carr. and their natural hybrids from an ecocline along the Skeena Valley, British Columbia, which runs from the dry continental interior (P. glauca) to the wet maritime Pacific coast (P. sitchen...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/s004420100659
更新日期:2001-08-01 00:00:00
abstract::1. The uptake of heavy metals via the alimentary tract can be an important factor for the metal budget of fish. 2. Concepts such as biomagnification, bioaccumulation, biotransference, or concentration factors, convey little information about the real threat originating from heavy metals in an aquatic food chain. 3. In...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/BF00376982
更新日期:1987-08-01 00:00:00
abstract::Reptile ticks mate while females are attached to their host. Following mating, females engorge, detach and then lay their eggs. This study examines whether the time that females of the reptile tick Amblyomma limbatum spend on hosts prior to mating and the time they take to engorge on hosts after mating influence their...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/BF00317303
更新日期:1993-05-01 00:00:00
abstract::It is widely recognized that pollinators vary in their effectiveness in pollination mutualisms, due both to differences in flower-pollinator morphological fit as well as pollinator behaviour. However, pollination webs typically treat all interactions as equal, and we contend that this method may provide misleading res...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/s00442-011-2084-z
更新日期:2012-01-01 00:00:00
abstract::Aggregations of different-looking animals are frequently seen in nature, despite well-documented selection pressures on individuals to maintain phenotypically homogenous groups. Two well-known theories, the 'confusion effect' (reduced ability of a predator to accurately target an individual in a group) and the 'oddity...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/s00442-012-2473-y
更新日期:2013-05-01 00:00:00
abstract::Climate change causes species range expansions to higher latitudes and altitudes. It is expected that, due to differences in dispersal abilities between plants and soil biota, range-expanding plant species will become associated with a partly new belowground community in their expanded range. Theory on biological inva...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/s00442-020-04749-y
更新日期:2020-10-01 00:00:00
abstract::In a survey of 28 plant species of 6 major growth forms from Alaskan tundra, we found no consistent difference among growth forms in the chemical nature of stored reserves except for lichens and mosses (which stored C primarily as polysaccharides) and shrubs (which tended to store C more as sugars than as polysacchari...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/BF00377266
更新日期:1988-12-01 00:00:00
abstract::Stratospheric ozone depletion has caused ground-level ultraviolet-B (UV-B) radiation to rise in temperate latitudes of both hemispheres. Because the effects of enhanced UV-B radiation on the nutrition of food consumed by mammalian herbivores are unknown, we measured nutritional and chemical constituents of 18 forages ...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/s00442-008-0978-1
更新日期:2008-05-01 00:00:00
abstract::Resource partitioning of diet and habitat use was studied in the entire Amazonian ungulate community of Northeastern Peru, which comprises the red brocket deer (Mazama americana), grey brocket deer (M. gouazoubira), collared peccary (Tayassu tajacu), white-lipped peccary (T. pecari), and lowland tapir (Tapirus terrest...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/BF00320611
更新日期:1991-01-01 00:00:00
abstract::Arafura filesnakes (Acrochordus arafurae) are large (up to 2.5 m, 5 kg) aquatic nonvenomous snakes that feed entirely on fishes. A 10-year field study in the Australian wet-dry tropics revealed strong correlations between rainfall patterns, fish abundance, and snake population dynamics. All of these characteristics sh...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/s004420050008
更新日期:2000-08-01 00:00:00
abstract::The use of stable isotopes to infer diet requires quantifying the relationship between diet and tissues and, in particular, knowing of how quickly isotopes turnover in different tissues and how isotopic concentrations of different food components change (discriminate) when incorporated into consumer tissues. We used f...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/s00442-003-1221-8
更新日期:2003-05-01 00:00:00
abstract::Seasonal reductions in food availability may cause animals to catabolize endogenous tissue and the resulting loss of lean mass can hinder their ability to forage and reproduce. While several studies have considered nitrogen isotopes (δ15N) as an indicator of catabolism, relationships between protein intake, body condi...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/s00442-017-4010-5
更新日期:2018-02-01 00:00:00
abstract::Studies of nitrogen (N) cycling have traditionally focused on N mineralization as the primary process limiting plant assimilation of N. Recent evidence has shown that plants may assimilate amino acids (AAs) directly, circumventing the mineralization pathway. However, the general abundance of soil AAs and their relativ...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/s00442-010-1601-9
更新日期:2010-08-01 00:00:00
abstract::A 9-year study of the structure of assemblages of fish on 20 coral patch reefs, based on 20 non-manipulative censuses, revealed a total of 141 species from 34 families, although 40 species accounted for over 95% of sightings of fish. The average patch reef was 8.5 m2 in surface area, and supported 125 fish of 20 speci...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/BF00326094
更新日期:1994-06-01 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
pub_type: 杂志文章
doi:10.1007/PL00008866
更新日期:2000-08-01 00:00:00
abstract::A series of seventeen plant extracts rich in phenolic materials, including condensed and hydrolysable tannins, have been subjected to a series of chemical analyses in an attempt to gather ecologically significant information about their structure. Procedures investigated were (i) the Folin-Denis and Hagerman and Butle...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/BF00385058
更新日期:1987-04-01 00:00:00