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- Author:
- BAT-MIRIAM, MARIASSA; GALUN, RACHEL
- Source:
- Entomologia experimentalis et applicata 1962 v.5 no.4 pp. 244-248
- ISSN:
- 0013-8703
- Subject:
- respiratory rate, etc ; Culicidae; body weight; females; imagos; males; metabolism; oxygen; temperature; Show all 9 Subjects
- Abstract:
- ... Newly emerged mosquitoes show a low respiratory rate which increases during the first two days of adult life. On the fourth day a temporary decrease occurs, after which there is no correlation between age and oxygen uptake. Males show a higher metabolic rate (calculated per mg body weight) than females at all temperatures studied. ...
- DOI:
- 10.1111/j.1570-7458.1962.tb00587.x
-
http://dx.doi.org/10.1111/j.1570-7458.1962.tb00587.x
- Author:
- Krueger, Kenneth W.; Ferrell, William K.
- Source:
- Ecology 1965 v.46 no.6 pp. 794-801
- ISSN:
- 0012-9658
- Subject:
- respiratory rate, etc ; Pseudotsuga menziesii; islands; light intensity; lighting; photosynthesis; seedlings; temperature; Montana; Show all 9 Subjects
- Abstract:
- ... Douglas—fir seedlings of the geographic varieties menziesii and glauca were grown from seed collection from southern Vancouver Island, B. C., and western Montana. Photosynthetic and respiratory rates were compared for a range of temperatures, light intensities, and under constant high—intensity illumination. Maximum apparent photosynthesis occurred near temperatures of 20 degrees—25 degrees C for ...
- DOI:
- 10.2307/1934011
-
http://dx.doi.org/10.2307/1934011
- Author:
- Witkamp, Martin
- Source:
- Ecology 1966 v.47 no.3 pp. 492-494
- ISSN:
- 0012-9658
- Subject:
- respiratory rate, etc ; age; bags; carbon dioxide production; floors; forest litter; leaves; temperature; Show all 8 Subjects
- Abstract:
- ... Evolution of CO₂ from the forest floor measured by the inverted—box method was related to moisture, temperature, and age of the litter, and to CO₂ evolution from oak leaves in litter bags measured by the closed—box method. Rates of CO₂ evolution measured by the inverted— and closed—box methods did not differ significantly (P>0.2). Respiration rates from bagged oak leaves were significantly correla ...
- DOI:
- 10.2307/1932992
-
http://dx.doi.org/10.2307/1932992
- Author:
- McIntire, C. David
- Source:
- Ecology 1966 v.47 no.6 pp. 918-930
- ISSN:
- 0012-9658
- Subject:
- respiratory rate, etc ; air; aquatic plants; containers; dissolved oxygen; lotic systems; oxygen; periphyton; streams; Show all 9 Subjects
- Abstract:
- ... Laboratory streams, a 509—liter respirometer chamber, and a Gilson differential respirometer were used to study factors influencing rates of periphyton respiration in lotic environments. Rates of respiration, expressed on an ash—free dry weight basis, determined for sections of intact communities in air—saturated water, varied between 0.8 mg O₂/g hr at 7.2°C and 2.3 mg O₂/g hr at 18.6°C for a comm ...
- DOI:
- 10.2307/1935639
-
http://dx.doi.org/10.2307/1935639
- Author:
- Schulze, E. D.; Mooney, H. A.; Dunn, E. L.
- Source:
- Ecology 1967 v.48 no.6 pp. 1044-1047
- ISSN:
- 0012-9658
- Subject:
- respiratory rate, etc ; Pinus aristata; autumn; carbon dioxide; cold; mountains; photosynthesis; soil; spring; summer; temperature; treeline; winter; California; Show all 14 Subjects
- Abstract:
- ... Winter rates of photosynthesis and respiration in bristlecone pine were measured at controlled temperatures at 3,094 m elevation. Following the onset of severely cold temperatures in autumn, net photosynthesis declined sharply. By midwinter net photosynthesis became zero and remained there through early spring; during this time only low gross photosynthesis could be measured. Respiration rates rem ...
- DOI:
- 10.2307/1934564
-
http://dx.doi.org/10.2307/1934564
- Author:
- Pennak, Robert W.
- Source:
- Ecology 1968 v.49 no.3 pp. 505-520
- ISSN:
- 0012-9658
- Subject:
- respiratory rate, etc ; Bacillariophyceae; Copepoda; Cyanobacteria; Rotifera; adults; algae; anaerobiosis; antibiotic resistance; antibiotics; bacteria; basins; eutrophication; field experimentation; heat; lakes; limnology; molds (fungi); mutants; nutrient availability; photosynthesis; plankton; refrigerators; seasonal variation; snow; snowpack; temperature; trout; winter; yeasts; Colorado; Show all 31 Subjects
- Abstract:
- ... Physical, chemical, and plankton conditions were studied during two winters in three Colorado mountain lakes. Black Lake is mesotrophic, Pass Lake is highly oligotrophic, and Tea Lake is shallow, eutrophic, and pondlike. The lower waters of Black and Pass lakes absorb heat from the basin so that their winter temperatures are above 4.0°C and as high as 5.4°C. The substrate and bottom waters reach e ...
- DOI:
- 10.2307/1934117
-
http://dx.doi.org/10.2307/1934117
- Author:
- Styron, C. E.
- Source:
- Ecology 1968 v.49 no.4 pp. 629-636
- ISSN:
- 0012-9658
- Subject:
- respiratory rate, etc ; Lirceus; anaerobic conditions; drought; ecotypes; gamma radiation; predators; races; rivers; streams; temperature; Georgia; Show all 12 Subjects
- Abstract:
- ... Two populations of Lirceus fontinalis Rafinesque in DeKalb County, Georgia are isolated in separate river drainages and evolving in response to different environmental stresses. Drought and high temperatures seem the main ecological factors limiting the population on Mount Arabia. These factors are of little moment to the population in Lullwater Creek where biotic factors are of primary ecological ...
- DOI:
- 10.2307/1935528
-
http://dx.doi.org/10.2307/1935528
- Author:
- McDaniel, Robert G.
- Source:
- Crop science 1969 v.9 no.6 pp. 823-827
- ISSN:
- 0011-183X
- Subject:
- respiratory rate, etc ; Hordeum vulgare; cultivars; energy; genotype; heterosis; hybrids; metabolism; mitochondria; seed size; seed weight; seedlings; seeds; spring barley; vigor; Show all 15 Subjects
- Abstract:
- ... Because of the effects of seed size on seedling vigor in small grains, it was of importance to distinguish seed size effects accurately within barley genotypes from heterotic seedling vigor of barley (Hordeum vulgate L.) hybrids. Measurements of seedling vigor of germinating seedlings of several six,rowed, spring barley cultivars were made concomitantly with a study of seedling heterosis in barley ...
- DOI:
- 10.2135/cropsci1969.0011183X000900060048x
-
https://dx.doi.org/10.2135/cropsci1969.0011183X000900060048x
- Author:
- McDiffett, Wayne F.
- Source:
- Ecology 1970 v.51 no.6 pp. 975-988
- ISSN:
- 0012-9658
- Subject:
- respiratory rate, etc ; Pteronarcys; body weight; calorimetry; detritivores; energy conversion; energy metabolism; exoskeleton; feces; leaves; nymphs; photoperiod; statistical analysis; streams; temperature; trout; Georgia; Show all 17 Subjects
- Abstract:
- ... The bioenergetics of a detritus—feeding stonefly Pteronarcys scotti, were invetigated. The nymphs were collected from a north Georgia trout stream and held under simulated field conditions of temperature and photoperiod in a laboratory stream. Rates of respiration and egestion were measured at temperatures approximating those in the field at the time of collection. An estimate of the growth rate o ...
- DOI:
- 10.2307/1933624
-
http://dx.doi.org/10.2307/1933624
- Author:
- Burky, Albert J.
- Source:
- Ecological monographs 1971 v.41 no.3 pp. 235-251
- ISSN:
- 0012-9615
- Subject:
- respiratory rate, etc ; acclimation; adults; autumn; biomass; breeding; carbon; carbon nitrogen ratio; cell respiration; egg production; eggs; energy balance; eutrophication; genetic variation; limpets; longevity; metabolism; oviposition; oxygen consumption; primary productivity; spring; streams; summer; temperature; winter; New York; Show all 26 Subjects
- Abstract:
- ... The stream limpet Ferrissia rivularis, which occurs extensively in North America and is ubiquitous in streams of upper New York State, was studied from two distinct populations, one located in the Canandaigua Outlet at Alloway, N. Y. (AL) and the other in Black Creek at Cleveland, N. Y. (BC). These environments differ substantially, that at AL being the more eutrophic. At BC there is one generatio ...
- DOI:
- 10.2307/1942367
-
http://dx.doi.org/10.2307/1942367
- Author:
- Kibby, Harold V.
- Source:
- Ecological monographs 1971 v.41 no.4 pp. 311-327
- ISSN:
- 0012-9615
- Subject:
- respiratory rate, etc ; Diaptomus; aboveground biomass; adults; autumn; bacteria; body weight; metabolism; mortality; oxygen consumption; phytoplankton; population dynamics; reproduction; seasonal variation; spring; summer; temperature; winter; Show all 18 Subjects
- Abstract:
- ... The population dynamics and energetics of two populations of Diaptomus gracilis have been studied in two Thames Valley reservoirs. The seasonal changes in the standing crop biomass varied from a low of 0.3 Cal/m² to a high of 7 Cal/m². Although the population overwintered primarily as adults, reproduction was continuous throughout the year. From the mortality rate the production has been estimated ...
- DOI:
- 10.2307/1948496
-
http://dx.doi.org/10.2307/1948496
- Author:
- Edwards, Nelson T.; Sollins, Phillip
- Source:
- Ecology 1973 v.54 no.2 pp. 406-412
- ISSN:
- 0012-9658
- Subject:
- respiratory rate, etc ; carbon dioxide production; ecosystems; forest litter; forests; metabolism; polymethylmethacrylate; potassium hydroxide; roots; Show all 9 Subjects
- Abstract:
- ... Loss rates of organic detritus in ecosystems can be determined by measuring rates of CO_2 release from decomposing organic substrates. We used an open system employing inverted boxes and an infrared gas analyzer (IRGA) to obtain continuous measurements of CO_2 evolution from the floor or a mixed mesophytic forest. Plexiglass sheets were used to partition respiratory activity of two litter horizons ...
- DOI:
- 10.2307/1934349
-
http://dx.doi.org/10.2307/1934349
- Author:
- Lechowicz, Martin J.; Adams, Michael S.
- Source:
- Ecology 1973 v.54 no.2 pp. 413-419
- ISSN:
- 0012-9658
- Subject:
- respiratory rate, etc ; Cladonia; air; dormancy; drying; ecophysiology; lichens; photosynthesis; pine barrens; sand; thallus; water content; Wisconsin; Show all 13 Subjects
- Abstract:
- ... The lichen Cladonia mitis (Sand.) from the Wisconsin Pine Barrens showed no significant differences in the light—dependence of net photosynthesis of sun— and shade—grown mats. Maximal net photosynthesis was 1.13 mg CO_2. g⁽—1) (air dry weight). hr⁽—1) at 3.88 x 10⁵ ergs. cm⁽—2). sec⁽—1), 22.5 plus or minus 1.0 degrees,and near optimal thallus water content; the light compensation point was 0.36 x ...
- DOI:
- 10.2307/1934350
-
http://dx.doi.org/10.2307/1934350
- Author:
- KrÖGER, Achim; Klingenberg, Martin
- Source:
- European journal of biochemistry 1973 v.34 no.2 pp. 358-368
- ISSN:
- 0014-2956
- Subject:
- respiratory rate, etc ; NAD (coenzyme); absorption; electron transfer; electron transport chain; equations; mixing; oxidation; oxygen; quantitative analysis; rotenone; succinic acid; titration; ubiquinones; Show all 14 Subjects
- Abstract:
- ... The role of ubiquinone (Q) in the respiratory chain is quantitatively analyzed by correlating both the steady-state redox level of Q and the kinetics of oxidation and reduction with the flux of the overall electron transport in uncoupled submitochondrial particles. This is achieved by experimentally defining donor and acceptor activities for Q. 1 The degree of reduction of Q in the steady state is ...
- DOI:
- 10.1111/j.1432-1033.1973.tb02767.x
-
http://dx.doi.org/10.1111/j.1432-1033.1973.tb02767.x
- Author:
- BARBOSA, P.; PETERS, T.M.
- Source:
- Entomologia experimentalis et applicata 1973 pp. 146-156
- ISSN:
- 0013-8703
- Subject:
- respiratory rate, etc ; Aedes aegypti; larvae; Show all 3 Subjects
- Abstract:
- ... Changes in the respiratory rates of “standard”, overcrowded, and starved fourth-instar Aedes aegypti are compared. The respiratory effects of varying larval densities during and prior to measurement are investigated. In addition, the results of exposure of standard and overcrowded larvae to growth-retarding factors (GRF) at various concentrations are also evaluated. ...
- DOI:
- 10.1111/j.1570-7458.1973.tb00260.x
-
http://dx.doi.org/10.1111/j.1570-7458.1973.tb00260.x
- Author:
- Koeppe, D. E.; Miller, Raymond J.; Bell, David T.
- Source:
- Agronomy journal 1973 v.65 no.4 pp. 566-569
- ISSN:
- 0002-1962
- Subject:
- respiratory rate, etc ; Zea mays; cell respiration; electrodes; mitochondria; oxidation; oxygen; plant response; seedlings; shoots; vermiculite; water content; water stress; Show all 13 Subjects
- Abstract:
- ... The purpose of this study was to correlate the respiratory rates of whole seedlings, excised shoots, and isolated mitochondria of Zea mays L. (Wf9 ✕ M14) water stressed to various degrees. Drought stress was imposed by two different methods and monitored with a Peltier psychrometer. Respiration was determined in whole plants with an infrared gas analyzer and in excised shoots and mitochrondrial su ...
- DOI:
- 10.2134/agronj1973.00021962006500040013x
-
https://dx.doi.org/10.2134/agronj1973.00021962006500040013x
- Author:
- de la Cruz, Armando A.; Gabriel, Benjamin C.
- Source:
- Ecology 1974 v.55 no.4 pp. 882-886
- ISSN:
- 0012-9658
- Subject:
- respiratory rate, etc ; Juncus roemerianus; carbon; containers; crude fiber; energy content; leaves; lipids; nitrogen; oxygen; phosphorus; plant tissues; protoplasm; Show all 13 Subjects
- Abstract:
- ... In situ decomposition rate of Juncus roemerianus (Juncaceae) leaves determined by litterbag method was 40% per year. Caloric, elemental, and proximate nutritive analyses of leaves at various stages of life and decay–classified as young, mature, standing dead, partially decayed, decomposed fragments, and particulate detritus–showed the following: (a) an increase in caloric content (4630—4911 g cal/ ...
- DOI:
- 10.2307/1934425
-
http://dx.doi.org/10.2307/1934425
- Author:
- Fraleigh, Peter C.; Wiegert, Richard G.
- Source:
- Ecology 1975 v.56 no.3 pp. 656-664
- ISSN:
- 0012-9658
- Subject:
- respiratory rate, etc ; Cyanobacteria; algae; biomass; carbon dioxide; chlorophyll; ecological succession; ecosystems; equations; light intensity; nonlinear models; photoperiod; prediction; Show all 13 Subjects
- Abstract:
- ... The gross productivity and changes in the standing crop of both biomass and chlorophyll @a were measured during ecological succession in thermal blue—green algal community. The rate of gross production (Pg ₎ in gC°m— ²°h‐ ¹ was directly related to the chlorophyll α (Chl) in mg°m— ² and independent of light intensity (Pg = 0.018 chl⁰ , ⁵ ¹). In turn we found a log—log relationship of chlorophyll α ...
- DOI:
- 10.2307/1935499
-
http://dx.doi.org/10.2307/1935499
- Author:
- Swift, Michael C.
- Source:
- Ecology 1976 v.57 no.5 pp. 900-914
- ISSN:
- 0012-9658
- Subject:
- respiratory rate, etc ; Chaoborus; Copepoda; at-risk population; biomass; carbon; computer simulation; diet; energy; immigration; individual feeding; lakes; larvae; larval development; migratory behavior; periodicity; temperature; zooplankton; British Columbia; Show all 19 Subjects
- Abstract:
- ... One of the recent theories for the adaptive value of vertical migration states that migrants gain an energetic advantage over nonmigrants because by alternating between areas of high and low temperatures they are able to partition energy into growth more efficiently than nonmigrants. The energetics of the vertical migration of fourth—instar Chaoborus trivittatus larva in Eunice Lake, British Colum ...
- DOI:
- 10.2307/1941056
-
http://dx.doi.org/10.2307/1941056
- Author:
- Edwards, N. T.; Harris, W. F.
- Source:
- Ecology 1977 v.58 no.2 pp. 431-437
- ISSN:
- 0012-9658
- Subject:
- respiratory rate, etc ; air flow; carbon; carbon cycle; deciduous forests; forest litter; metabolism; root exudates; roots; Show all 9 Subjects
- Abstract:
- ... A study of carbon cycling within the floor of a mixed deciduous forest included estimates of litterfall, litter standing crop, root turnover, lateral root standing crop, and measurements of gaseous carbon losses from the various components. Annual carbon inputs to the system were 161 g C ° m— ² as litterfall and 733 g C ° m— ² as small roots (<0.5 cm diam). Mean annual standing pools were: 01 litt ...
- DOI:
- 10.2307/1935618
-
http://dx.doi.org/10.2307/1935618