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Microhabitat dependent responses to resource pulses in the aridland perennial, Cryptantha flava

Citation

Peek, Michael S, and Forseth, Irwin N, Microhabitat dependent responses to resource pulses in the aridland perennial, Cryptantha flava: .

Summary

1 A 3-year field study examined the physiological and demographic consequences of resource pulse use by an herbaceous, aridland perennial, Cryptantha flava, as well as potential competitive and facilitative interactions with larger shrubs. 2 We applied a pulse of urea and faecal pellets, simulating Mule deer excretions, to plants growing between and under Sagebrush and Rabbitbrush canopies. 3 We hypothesized that C. flava would show strong positive responses to N pulses in open microhabitats, and such plants had approximately 50% increases in leaf N concentrations within days of pulse application, accompanied by increased photosynthetic rates. Over the next year, higher rates of growth and reproduction were found in the plants receiving [...]

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  • Upper Colorado River Basin

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From Source - Mendeley RIS Export <br> On - Wed Sep 19 08:03:42 MDT 2012

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Title Citation Microhabitat dependent responses to resource pulses in the aridland perennial, Cryptantha flava

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