Fate of N additions in a multiple resource‐limited Mediterranean oak savanna
نویسندگان
چکیده
منابع مشابه
Oak Savanna Restoration: A Case Study
A degraded oak savanna in southwestern Wisconsin is being restored using intensive cutting of undesirable shrubsbuckthorn (Rhamnus cathartica), prickly ash (Zanthoxylum americanum), honeysuckle (Lonicera spp.)-and selective removal of trees that are crowding the open-grown bur (Quercus macrocar/Ja) and white (Q. alba) oaks. Land use records and historic aerial photographs have been used to guid...
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Savannas’ defining feature is a scattered tree layer. However, woody plants have encroached savannas throughout the world, altering tree densities and potentially modifying regeneration dynamics. We used a replicated large-scale restoration experiment with Midwestern oak savannas (USA) to understand spatial patterns of regeneration by the dominant overstory species, Quercus alba. Q. alba is not...
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We report on growth and survivorship of two cohorts of blue oaks Quercus douglasii Hook. & Arn. (Fagaceae) monitored at Hastings Reservation in Monterey County, California, the first growing in an unprotected old field and measured as seedlings in 1965 and the second planted as acorns in 1985 in several sites differing in their degree of protection from grazing. Growth of all individuals was ex...
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Herbivores can often control plant dynamics by mediating positive feedbacks in plant species’ influence on nutrient cycling. In a 7-yr field experiment in a nitrogenlimited Minnesota oak savanna, we tested whether herbivores accelerated or decelerated nitrogen (N) cycling through their effects on plants. We measured effects of excluding insect (primarily Orthoptera and Homoptera) and mammalian ...
متن کاملNectar sampling for prairie and oak savanna butterfly restoration1
PREMISE OF THE STUDY Understanding floral resources is vital for restoring pollinators in habitats affected by anthropogenic development and climate change. As the primary adult food, nectar can limit butterfly longevity and reproduction. For pollinator restoration, it would therefore be useful to examine nectar resources. However, because many flowers preferred by butterflies are too small for...
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ژورنال
عنوان ژورنال: Ecosphere
سال: 2019
ISSN: 2150-8925,2150-8925
DOI: 10.1002/ecs2.2921