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  1. In Situ Cercidiphyllum-like Seedlings from the Paleocene of Alberta, Canada.

    by Stockey, R.A.; Crane, P.A.

    Fossil seedlings and seeds of an extinct Cercidiphyllum-like plant occur in the Paskapoo Formation (Late Paleocene) at Joffre...

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  2. In situ fossil seedlings of a Metasequoia-like taxodiaceous conifer from Paleocene river floodplain deposits of central Alberta, Canada

    by Faldner, A.B.; Stockey, R.A.; Rothwell, G.W.

    Fossil seeds and seedlings of a Metasequoia-like taxodiaceous conifer occur in Paleocene deposits at the Munce’s Hill and...

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  3. An incident of polar bear infanticide and cannibalism on Phippsøya, Svalbard

    by Stone, I.R.; Derocher, A.E.

    A case of polar bear infanticide and cannibalism is reported from Phippsøya, Svalbard. In this instance, a cub of some 7...

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  4. Independent evolution of leaf and root traits within and among temperate grassland plant communities

    by Kembel, S. W.; Cahill, J. F.

    In this study, we used data from temperate grassland plant communities in Alberta, Canada to test two longstanding hypotheses...

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  5. Induction of microsomal membrane proteins in roots of an aluminum-resistant cultivar of Triticum aestivum L. under conditions of aluminum stress

    by Basu, A.; Basu, U.; Taylor, G. J.

    Three-day-old seedlings of an Al-sensitive (Neepawa) and an Al-resistant (PT741) cultivar of Triticum aestivum were subjected...

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  6. Infanticide and cannibalism of juvenile polar bears (Ursus maritimus) in Svalbard

    by Derocher, A.E.; Wiig, O.

    Two instances of infanticide and cannibalism in polar bears (Ursus maritimus) were observed in SE Svalbard, at Hopen Island....

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  7. The influence of hydrologic condition and peat oxia on phosphorous and nitrogen dynamics of a conifer swamp

    by Devito, K.J.; Dillon, P.J.

    A massb alancea pproachw as usedt o determinet he factorsi nfluencingp hosphorusa nd nitrogen dynamicsi n wetlandsc ommont...

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  8. Influence of subhumid climate and water table depth on groundwater recharge in shallow outwash aquifers

    by Smerdon, B.D.; Mendoza, C.A.; Devito, K.J.

    [1] Hypothetical one-dimensional models of unsaturated flow were used to estimate the probability of groundwater recharge...

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  9. The interaction between masting and fire is key to white spruce regeneration

    by Peters, V. S.; MacDonald, S. E.; Dale, M. R. T.

    Abstract: We used the mast-seeding tree Picea glauca (white spruce) to examine whether the timing of mast years relative...

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  10. Interannual variability in trophic status of shallow lakes on the boreal Plain: Is there a climate signal?

    by Sass, G.Z.; Creed, I.F.; Bayley, S.E.; Devito, K.J.

    We explored relations between climate and trophic status of shallow lakes (lake area > 5 ha, mean depth < 3.2 m) located...

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  12. Intrinsic rate of increase and temperature coefficients of the aphid parasite Ephedrus californicus baker (Hymenoptera: Aphidiidae)

    by Cohen, M. B.; Mackauer, M.

    The demographic statistics and the temperature requirements for development of Ephedrus californicus Baker were determined...

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  13. Introduction: Evolution of Modern Ferns

    by Stockey, R.A.; Rothwell, G.W.

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  14. Introduction to the Darwin special issue: The abominable mystery

    by Stockey, R.A.; Graham, S.W.; Crane, P.R.

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  15. Introgression potential between safflower (Carthamus tinctorius) and wild relatives of the genus Carthamus

    by Mayerhofer, Marion; Mayerhofer, Reinhold; Topinka, Deborah; Christianson, Jed; Good, Allen G.

    Background: Safflower, Carthamus tinctorius, is a thistle that is grown commercially for the production of oil and birdseed...

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  17. Invasion theory and biological control.

    by Fagan, W. F.; Lewis, M. A.; Neubert, M. G.

    Recent advances in the mathematical theory of invasion dynamics have much to offer to biological control. Here we synthesize...

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  20. Is the anthophyte hypothesis alive and well? New evidence from the reproductive structures of Bennettitales

    by Rothwell, G.W.; Crepet, W.L.; Stockey, R.A.

    Bennettitales is an extinct group of seed plants with reproductive structures that are similar in some respects to both Gnetales and...

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