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1. Home Range and Movements of the Wood Frog in a Northern Bog

Author:
Edward D. Bellis
Source:
Ecology 1965 v.46 no.1-2 pp. 90-98
ISSN:
0012-9658
Subject:
Lithobates sylvaticus; Zantedeschia aethiopica; Alnus; hibernation; ponds; males; peatlands; highlands; humidity; body length; home range; summer; frogs; females; adults; Minnesota
Abstract:
... Wood frogs were marked by toe clipping and were recaptured in a northern Minnesota peat bog for three summers. The study area, dominated by tamaracks and calla lilies in the northern half and by spruces and alders in the southern half, measured 120 yards on each side and was divided into 100 equal quadrats. A total of 1,377 individuals was handled; many were recaptured one or more times, 2,101 cap ...
DOI:
10.2307/1935261

2. Modern Vegetation and Pollen Rain in Bladen County, North Carolina

Author:
Donald R. Whitehead; Kiat W. Tan
Source:
Ecology 1969 v.50 no.2 pp. 235-248
ISSN:
0012-9658
Subject:
Alnus; trees; Ilex; Liriodendron; Castanea; Pinus taeda; Liquidambar; Ambrosia; Cyrilla; pollen; Taxodium; Nyssa; Quercus; lakes; Fagus; Carya; Salix; Pinus serotina; Betula; Populus; Magnolia; Ulmus; Chamaecyparis; Acer rubrum; Ericaceae; Itea; Persea; Juglans; vegetation types; shrubs; hardwood; pollen rain; forest inventory; Corylus; xerophytes; Pinus palustris; stand basal area; North Carolina
Abstract:
... The different vegetation types within Bladen County, in order of areal dominance, are pine and hardwoods, mixed hardwoods, pocosin, mixed pine, and long—leaf pine. Basal area data from Continuous Forest Inventory (CFI) plots indicate that the most abundant trees, in order of frequency, are Pinus taeda, Liquidambar, Acer rubrum, Pinus serotina, Pinus australis, "bay" shrubs (Gordonia, Magnolia, Per ...
DOI:
10.2307/1934851

3. Late‐Wisconsinan Vegetational History at Wolf Creek, Central Minnesota

Author:
H. J. B. Birks
Source:
Ecological monographs 1976 v.46 no.4 pp. 395-429
ISSN:
0012-9615
Subject:
Alnus; Betula; Empetrum; Picea; Pinus banksiana; Shepherdia; Silene acaulis; Vaccinium uliginosum; data collection; fossils; highlands; ice; lakes; marshes; mixed forests; paleobotany; paleoecology; palynology; pollen; shrubs; stratigraphy; streams; temperature; willows; woodlands; Lake Superior; Minnesota
Abstract:
... The pollen and plant—macrofossil stratigraphy of Wolf Creek, an extensive marsh within one of the oldest drumlin fields in central Minnesota, is described for the period 20,500 to 9150 yr ago. The pollen stratigraphy is presented both as percentages and as "absolute" influx. Both the pollen and macrofossil data have been analyzed by numerical zonation procedures to reveal the major stratigraphic p ...
DOI:
10.2307/1942564

4. An Analysis of Elemental Concentrations in Vegetation Bordering a Southeastern United States Coastal Plain Stream

Author:
Charels T. Garten Jr.; John B. Gentry; Rebecca R. Sharitz
Source:
Ecology 1977 v.58 no.5 pp. 979-992
ISSN:
0012-9658
Subject:
Alnus; Andropogon; Morella cerifera; Polygonum; Sagittaria latifolia; Salix nigra; Scirpus; alluvial soils; aluminum; autumn; boron; calcium; coastal plains; copper; discriminant analysis; elemental composition; floodplains; interspecific variation; leaves; magnesium; molybdenum; potassium; principal component analysis; roots; seasonal variation; seeds; sodium; spring; stems; streams; strontium; vegetation; woody plants; zinc; South Carolina
Abstract:
... Mineral element concentrations were measured in the component parts of different species of plants from a floodplain community along a coastal plain stream in South Carolina, USA. Frequency distributions of concentrations of mineral elements were positively skewed, although distributions of P, K, Ca and B concentrations tended to be less skewed than those of some trace elements (Na, Al, Cs—137). S ...
DOI:
10.2307/1936919

5. The Modern and Late Quaternary Vegetation of the Campbell‐Dolomite Uplands, near Inuvik, N.W.T., Canada

Author:
J. C. Ritchie
Source:
Ecological monographs 1977 v.47 no.4 pp. 401-423
ISSN:
0012-9615
Subject:
Alnus; Betula; Picea; Plantago; Populus; Selaginella; aquifers; bedrock; carbon radioisotopes; colluvium; dolomite; ground vegetation; habitats; herbs; highlands; humus; lakes; limestone; paleoecology; permafrost; plateaus; pollen; principal component analysis; river deltas; shale; shorelines; shrubs; trees; vegetation cover; woodlands; Alaska; Northwest Territories; Yukon Territory
Abstract:
... The Campbell—Dolomite uplands comprise a small area (140 km2) of outcropping, faulted dolomite, limestone, and shale east of the Mackenzie River Delta, ~ 40 km south of the northern limit of trees. The major landforms are bedrock ridges and plateaux, steep colluvium, stable slopes, shorelines, and depressions. A principal component analysis of vegetation—cover data from 150 stands suggest that muc ...
DOI:
10.2307/1942175

6. Late Quaternary Vegetation History of the Eastern Highland Rim and Adjacent Cumberland Plateau of Tennessee

Author:
Hazel R. Delcourt
Source:
Ecological monographs 1979 v.49 no.3 pp. 255-280
ISSN:
0012-9615
Subject:
Acer saccharum subsp. saccharum; Alnus; Betula; Carya; Cephalanthus occidentalis; Fagus; Fraxinus; Holocene epoch; Picea; Pinus banksiana; Quercus; carbon radioisotopes; cliffs; climate; coastal plains; coniferous forests; deciduous forests; drying; latitude; mixed forests; paleobotany; paleoecology; palynology; pollen; radiocarbon dating; sediments; streams; trees; Appalachian region; Missouri; Ozarks; Tennessee
Abstract:
... Vegetation change during the past 25 000 years in and near the present Mixed Mesophytic Forest Region is inferred from pollen and plant macrofossil analyses of sediment cores from two sites on the eastern Highland Rim of Middle Tennessee, USA. Anderson Pond, in White County, dates from 25 000 radiocarbon years BP to present. During the Farmdalian Interstadial, 25 000 yr BP, northern Diploxylon pin ...
DOI:
10.2307/1942485

7. The occurrence of Erwinia Salicis, the cause of Watermark disease, in the phyllosphere of Salix alba

Author:
P. Zweep; M. Kam
Source:
European journal of forest pathology. 1982 v.12 no.4‐5 pp. 257-261
ISSN:
0300-1237
Subject:
Alnus; Brenneria salicis; Crataegus; Salix alba; epiphytes; fluorescent antibody technique; forests; liquids; phyllosphere; rain; virulence; wind
Abstract:
... Research on epiphytic populations of Erwinia salicis performed during 1979–1981 is reported. Periodic examination of 14 Salix alba trees in two subsequent years was executed. Trees in various parts of the country, including plants from other genera were examined, using direct immunofluorescence. The possible significance of these epiphytic populations for the dissemination of the Watermark disease ...
DOI:
10.1111/j.1439-0329.1982.tb01477.x

8. Modern Pollen Assemblages and Vegetation in the Myrtle Lake Peatland, Minnesota

Author:
C. R. Janssen
Source:
Ecological monographs 1984 v.54 no.2 pp. 213-252
ISSN:
0012-9615
Subject:
Abies; Alnus; Betula; Fraxinus; Pinus; Typha; forests; lakes; mosses and liverworts; palynology; peatlands; pollen; sediments; spores; wind pollination; wind speed; Minnesota
Abstract:
... Pollen grains and spores in moss polsters are compared with vegetation along transects across vegetational gradients in a large peatland in northern Minnesota. The distribution, percentage values, and source of 135 pollen and spore types are traced and related to the broad—scale vegetation pattern in the midwestern United States, and to the fine—scale vegetation pattern in the peatland. The pollen ...
DOI:
10.2307/1942662

9. Effects of O3 on alder photosynthesis and symbiosis with Frankia

Author:
CAROL S. GREITNER; WILLIAM E. WINNER
Source:
new phytologist 1989 v.111 no.4 pp. 647-656
ISSN:
0028-646X
Subject:
Alnus; Frankia; air; carbon dioxide; endophytes; fumigation; gas exchange; hyphae; nitrogen fixation; organelles; ozone; photosynthesis; rhizosphere; root nodules; stomatal conductance; symbionts; symbiosis; transmission electron microscopy
Abstract:
... Alnus serrulata (Aiton) Willdenow seedlings with and without root nodules formed by the nitrogen‐fixing actinomycete Frankia were exposed to clean filtered air or ozone (O₃) at 0.12 μl l⁻¹ for 27 d (approximately 164 h total exposure). Gas exchange measurements on leaves and transmission electron micrographs of root nodule cells were made to detect any O₃ effects on the functioning of leaves and t ...
DOI:
10.1111/j.1469-8137.1989.tb02359.x

10. Factors affecting orchard colonisation by the black-kneed capsid (Blepharidopterus angulatus (Hemiptera:Miridae)) from alder windbreaks

Author:
Gange, A.C.; Llewellyn, M.
Source:
Annals of applied biology 1989 v.114 no.2 pp. 221-230
ISSN:
0003-4746
Subject:
Hemiptera; Alnus; windbreaks; orchards; integrated pest management
DOI:
10.1111/j.1744-7348.1989.tb02099.x

11. Water chemical profiles under four tree species at Gisburn, NW England

Author:
Brown, A.H.F.; Iles, M.A.
Source:
Forestry 1991 v.64 no.2 pp. 169-187
ISSN:
0015-752X
Subject:
Pinus; Quercus; Alnus; Picea; rain; water quality; throughfall; soil water; forest litter; canopy; acidity; chemical substances; England
Abstract:
... A study was made of the changes and variation in the chemistry of rainwater passing through the different strata of separate ecosystems of four tree species (oak, aider, spruce and pine) on the same site at Gisburn (Bowland Forest), north-west England. Waters were sampled as rain, throughfall, forest-floor leachate and soil waters from both the A and B/C horizons; and analysed for NH4-N, NO3-N, PO ...
DOI:
10.1093/forestry/64.2.169

12. Characterization and comparison of macrofungal communities in an Alnus tenuifolia and an Alnus crispa forest in Alaska

Author:
Brunner, I.; Brunner, F.; Laursen, G.A.
Source:
Canadian journal of botany 1992 v.70 no.6 pp. 1247-1258
ISSN:
0008-4026
Subject:
Alnus; forest ecology; fungi; lichens; plant communities; soil properties; mosses and liverworts; Alaska
DOI:
10.1139/b92-158

13. Depolying genotypes in short-rotation plantations: Mixtures and pure cultures of clones and species

Author:
DeBell, D.S.; Harrington, C.A.
Source:
Forestry chronicle 1993 v.69 no.6 pp. 705-713
ISSN:
0015-7546
Subject:
intensive forestry; Alnus; Eucalyptus; diameter; Albizia; plant characteristics; yields; height; clones; genotype mixtures; mixed culture; forest plantations; Populus; continuous cropping; stand structure; Hawaii
Abstract:
... This article discusses factors to be considered when choosing among alternative deployment options for species and clones in short-rotation plantations. Several examples of pure and mixed culture are presented and potential benefits and problems are described. The article is based on a paper presented to the International Energy Agency's Committee on Biomass Production Systems which met in conjunc ...
DOI:
10.5558/tfc69705-6

14. Flandrian vegetational history of southeastern England. Pollen data from Pannel Bridge, East Sussex

Author:
M. P. WALLER
Source:
new phytologist 1993 v.124 no.2 pp. 345-369
ISSN:
0028-646X
Subject:
Alnus; Betula; Corylus; Cyperaceae; Fraxinus; Myrica; Pinus; Quercus; Tilia; Ulmus; arid lands; decline; forest canopy; humans; palynology; pollen; wetlands; woodlands; England
Abstract:
... Pollen data, plant macrofossil remains and lithostratigraphy are used to reconstruct Flandrian vegetational history from a coastal site in south‐eastern England. The record at this site, Pannel Bridge in East Sussex, extends back to c. 10000 BP and is the most complete so far obtained from this region. The thirteen pollen assemblages zones defined reflect, in part, the complex development of the s ...
DOI:
10.1111/j.1469-8137.1993.tb03825.x

15. Four recombinant isoforms of Cor a I, the major allergen of hazel pollen, show different IgE-binding properties

Author:
Breiteneder, H.; Ferreira, F.; Hoffmann-Sommergruber, K.; Ebner, C.; Breitenbach, M.; Rumpold, H.; Kraft, D.; Scheiner, O.
Source:
European journal of biochemistry 1993 v.212 no.2 pp. 355-362
ISSN:
0014-2956
Subject:
Alnus; Corylus avellana; complementary DNA; open reading frames; Carpinus; allergens; clones; amino acid sequences; immunoglobulin E; Betula; pollen
Abstract:
... Previous studies showed that pollens from trees of the order Fagales (e. g. birch, alder, hazel and hornbeam) all contain one major allergen. These proteins are cross-reactive between these tree species, and approximately 95% of tree-pollen-allergic patients display IgE binding to these allergens. Using the reported N-terminal amino acid sequence of the hazel pollen allergen Cor a I, it was possib ...
DOI:
10.1111/j.1432-1033.1993.tb17669.x
PubMed:
7916686

16. Rapid N^2 Fixation in Pines, Alder, and Locust: Evidence From the Sandbox Ecosystems Study

Author:
Bernard T. Bormann; F. Herbert Bormann; William B. Bowden; Robert S. Piece; Steve P. Hamburg; Deane Wang; Michael C. Snyder; C. Y. Li; Rick C. Ingersoll
Source:
Ecology 1993 v.74 no.2 pp. 583-598
ISSN:
0012-9658
Subject:
microbiology; Pinus; Alnus; nitrogen-fixing trees; Robinia pseudoacacia; silvicultural systems; roots; nitrogen fixation; genetics; bulk density; ecosystems; acetylene reduction; mineral soils; soil organic matter; leaching; dry deposition; denitrification; nitrogen; lysimeters; vegetation
Abstract:
... Not all nitrogen (N) inputs have been accounted for in forested ecosystems. We sought to account for N₂ fixation and dry deposition using a lysimeter mass—balance approach. Large sand—filled, field lysimeters were used to construct 5—yr nitrogen budgets for two N₂—fixing trees, two pines, and a nonvegetated control soil. This approach is a promising and straightforward technique for quantifying ot ...
DOI:
10.2307/1939318

17. Ultrastructure of the endophyte and localization of nifH transcripts in root nodules of Coriaria nepalensis Wall, by in situ hybridization

Author:
M. SAJJAD MIRZA; K. PAWLOWSKI; F. Y. HAFEEZ; A. H. CHAUDHARY; A. D. L. AKKERMANS
Source:
new phytologist 1994 v.126 no.1 pp. 131-136
ISSN:
0028-646X
Subject:
Alnus; Coriaria; cell walls; electron microscopy; hyphae; in situ hybridization; messenger RNA; mitochondria; root nodules; stele; ultrastructure; vacuoles
Abstract:
... Studies on the root nodules of Coriaria nepalensis Wall. using light and electron microscopy revealed that infected cortical cells are enlarged and form a compact kidney‐shaped region with an acentric stele. Within a single cell, the actinomycetous endophyte has branched hyphae and elongate vesicles. Hyphae penetrate the host cell wall in different directions. Inside the host ceil, the hyphae are ...
DOI:
10.1111/j.1469-8137.1994.tb07538.x

18. Xylem Embolism in Ring‐Porous, Diffuse‐Porous, and Coniferous Trees of Northern Utah and Interior Alaska

Author:
John S. Sperry; Kirk L. Nichols; June E. M. Sullivan; Sonda E. Eastlack
Source:
Ecology 1994 v.75 no.6 pp. 1736-1752
ISSN:
0012-9658
Subject:
Abies; Alnus; Betula; Larix; Picea; Populus tremuloides; Quercus; conifers; embolism; freeze-thaw cycles; leaf area; spring; tracheids; trees; winter; Alaska; Utah
Abstract:
... Xylem embolism was measured in nine tree species for one or more years. Species were ring—porous (Quercus sp.), diffuse—porous (Alnus, Betula, Populus spp.) or coniferous (Picea, Larix, Abies spp.). Intraspecific (Populus tremuloides) and intrageneric (Betula, Alnus) comparisons were made between sites in northern Utah and interior Alaska. Most embolism, >90% in some dicot species, occurred in win ...
DOI:
10.2307/1939633

19. Effects of Late Holocene Forest Disturbance and Vegetation Change on Acidic Mud Pond, Maine, USA

Author:
Thomas E. Rhodes; Ronald B. Davis
Source:
Ecology 1995 v.76 no.3 pp. 734-746
ISSN:
0012-9658
Subject:
Alnus; Asterionella; Betula; Eunotia; Fagus; Fragilaria; Mallomonas; Picea; Rhizosolenia; Salix; Synedra; Synura; Tsuga; acidification; cations; charcoal; chemical bases; chlorophyll; coniferous forests; ferns and fern allies; forest fires; forest litter; hardwood forests; lakes; mineral soils; organic acids and salts; organic matter; pH; pollen; sediment deposition; sediments; shrubs; soil erosion; soil stabilization; spores; trees; watersheds; wood ash; Maine
Abstract:
... The limnological effects of natural forest disturbance and succession were studied by analyzing the chemistry, charcoal, pollen, chrysophytes, and diatoms in sediments deposited from °3500 to °700 yr BP in Mud Pond, Maine, USA. Mud Pond was chosen for this study because its oligotrophy (mean chlorophyll a = 0.5 mg/L), large ratio of catchment area to lake area (°50:1), and steeply sloping catchmen ...
DOI:
10.2307/1939340

20. Holocene evolution of a lowland Scottish landscape: Kirkpatrick Fleming. Part II, regional vegetation and land-use change

Author:
Richard Tipping
Source:
Holocene 1995 v.5 no.1 pp. 83-96
ISSN:
0959-6836
Subject:
Alnus; Corylus; Quercus; Ulmus; bogs; charcoal; land use change; landscapes; peat; pollen; radiocarbon dating; soil; woodlands
Abstract:
... In this second of three papers on the environmental changes that have affected a lowland Scottish landscape during the Holocene, pollen and microscopic charcoal counts, supported by radiocarbon dates, form the basis for interpreting vegetation changes that characterized 'dryland' soils around the raised bog of Burnfoothill Moss, on the Solway Firth. The migration of Corylus, and later of Quercus a ...
DOI:
10.1177/095968369500500109