Filters: Tags: phenology (X)
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Detrended, modelled first leaf dates for 856 sites across North America for the period 1900–2008 are used to examine how the El Niño Southern Oscillation (ENSO) and the Pacific Decadal Oscillation (PDO) separately and together might influence the timing of spring. Although spring (mean March through April) ENSO and PDO signals are apparent in first leaf dates, the signals are not statistically significant (at a 95% confidence level (p < 0.05)) for most sites. The most significant ENSO/PDO signal in first leaf dates occurs for El Niño and positive PDO conditions. An analysis of the spatial distributions of first leaf dates for separate and combined ENSO/PDO conditions features a northwest–southeast dipole that is...
Categories: Publication;
Types: Citation;
Tags: D 04640 Other angiosperms,
Ecology Abstracts,
Geranium maculatum,
USA, Massachusetts,
phenology,
Categories: Publication;
Types: Citation;
Tags: Acer saccharum,
Entomology Abstracts; Ecology Abstracts,
Taeniothrips inconsequens,
Thripidae,
Thysanoptera,
Twelve northern desert shrub communities having the same macroclimate but differing habitats were studies. Arranged in order of decreasing production of live stems plus current growth, the communities were: (1) Sarcobatus vermiculatus (9,172 kg/ha), (2) Grayia spinosa (7,412 kg/ha), (3) Artemisia tridentata (5,474 kg/ha), (4) Chrysothamnus nauseosus (4,836 kg/ha), (5) Atriplex confertifolia (3,194 kg/ha), (6) Eurotia lanata (2,026 kg/ha), (7) Hilaria jamesii-Atriplex confertifolia (1,995 kg/ha), (8) Atriplex corrugata (1,949 kg/ha), (9) Chrysothamnus greenii filifolius (1,866 kg/ha), (10) Atriplex nuttallii (1,309 kg/ha), (11) Elymus salinus (865 kg/ha), and (12) Tetradymia spinosa (564 kg/ha). The communities were...
Categories: Publication;
Types: Citation,
Journal Citation;
Tags: Colorado,
Ecology,
evotranspiration,
internal-plant stress,
leaf persistence,
Categories: Publication;
Types: Citation;
Tags: Acomastylis rossii,
Bistorta bistortoides,
D 04640 Other angiosperms,
Ecology Abstracts,
alpine environments,
Categories: Publication;
Types: Citation;
Tags: Agromyzidae,
Cajanus cajan,
Entomology Abstracts,
India,
Melanagromyza obtusa,
Categories: Publication;
Types: Citation;
Tags: Cullenia exarillata,
D 04640 Other angiosperms,
Ecology Abstracts,
India,
flowering,
Categories: Publication;
Types: Citation;
Tags: Australia, Victoria,
D 04671 Birds,
Ecology Abstracts,
Passeriformes,
Perching birds,
Categories: Publication;
Types: Citation;
Tags: D 04671 Birds; Y 25526 Birds,
Ecology Abstracts; Animal Behavior Abstracts,
Vireo gilvus,
Vireo swainsonii,
Warbling vireo,
Categories: Publication;
Types: Citation;
Tags: Breeding status,
D 04671 Birds; Y 25426 Birds,
Demography,
Ecology Abstracts; Animal Behavior Abstracts,
Food availability,
Categories: Publication;
Types: Citation;
Tags: Air temperature,
Canada,
D 04659 Insects; Z 05203 Relations to plants,
Ecological distribution,
Ecology Abstracts; Entomology Abstracts,
Categories: Publication;
Types: Citation;
Tags: Age differences,
D 04671 Birds; Y 25656 Birds,
Ecology Abstracts; Animal Behavior Abstracts,
Ficedula hypoleuca,
Migration,
Categories: Publication;
Types: Citation;
Tags: Attractancy,
Attractants,
Bollworm,
Cutworms,
Entomology Abstracts; Chemoreception Abstracts,
Categories: Publication;
Types: Citation;
Tags: Aceros cassidix,
Breeding success,
Brood care,
D 04671 Birds,
Ecology Abstracts,
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