Increased soil nitrogen associated with dinitrogen-fixing, terricolors lichens of the genus Peltigera in northern Minnesota

Article Abstract:

Field and laboratory investigations were conducted with the primary objective of determining whether soil N availability is increased near healthy thalli of terricolous dinitrogen-fixing lichens. For this, available soil N in situ with ion-exchange resin bags, potentially mineralizable N with laboratory incubations, total soil N, and soil temperature is measured.

Minnesota, Nitrogen, Nitrogen fixation, Soil ecology

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Lichens and mosses promote alternate stable plant communities in the New Jersey Pinelands

Article Abstract:

The dynamics of moss-lichen interactions leading to two alternative stable states of stable open cryptogam mats versus a succession of vascular plants are investigated. The fluctuating warm and dry versus cool and moist conditions help in the development of alternative stable states.

New Jersey, Behavior, Vascular plants

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Digestive mutualism, an alternate pathway in plant carnivory

Article Abstract:

The precise definition of a carnivorous plant is discussed. Alternative methods of prey digestion represent extremely specialized adaptations to the carnivorous syndrome.

Varieties

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