Results 161 to 170 of about 1,629 (192)
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Granivory and Plant Selection by Desert Gerbils of Different Body Size
Ecology, 1997Plant selection, energy intake, and digestibility were studied in nonrepro- ducing Gerbillus henleyi (10 g; n = 9), Gerbillus dasyurus (24 g; n = 6), and Meriones crassus (90 g; n = 9). These gerbils coexist in the Negev Desert Highlands, have similar dietary habits (being primarily granivores), and do not require drinking water, but they differ ...
Michael Kam +2 more
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The geographical distribution of rodent granivory and cheek pouches across North America
Journal of Biogeography, 2021AbstractAimOne of the specializations that many granivorous rodents exhibit to increase their efficiency in harvesting seeds is cheek pouches. We propose that the presence or absence of cheek pouches is related to seed size and the productivity of the habitat where those rodents reside.LocationNorth America – United States and Canada.TaxonGranivorous ...
Stephen B. Vander Wall, Jacob W. Dittel
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Fire and dynamics of granivory on a California grassland forb
Biodiversity and Conservation, 2005predation Abstract. This study examines the effects of burning and granivory on the reproductive success of the rare plant Amsinckia grandiflora (Boraginaceae). Fire is often used in California grasslands as a means of exotic species control, but the indirect effects these controls have on the reproductive ecology of native plants are rarely assessed ...
Erin K Espeland
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EARLY EFFECTS OF RODENT GRANIVORY ON EXPERIMENTAL FORB COMMUNITIES
Ecological Applications, 2000Seed predation by rodents had major direct and indirect impacts on exper- imental plantings of 16 species of herbaceous dicots of the prairie/savanna interface in southwestern Wisconsin.
H. F. Howe, J. S. Brown
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Plant Ecology, 2021
Seed predation may influence community assembly and invasion dynamics when seed predators preferentially select some seed species over others. However, the role of different seed predators and their preferences for seeds in multiple ecological contexts, including the endangered California sage scrub ecosystem, remain unresolved making predictions about
Jenna A. Loesberg, Wallace M. Meyer
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Seed predation may influence community assembly and invasion dynamics when seed predators preferentially select some seed species over others. However, the role of different seed predators and their preferences for seeds in multiple ecological contexts, including the endangered California sage scrub ecosystem, remain unresolved making predictions about
Jenna A. Loesberg, Wallace M. Meyer
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Seasonal effects of granivory on broadcast seeding restoration in a degraded semiarid grassland
Restoration Ecology, 2023Granivores, such as rodents and harvester ants, are common in dryland ecosystems. In intact dryland ecosystems, the effects of such granivores on soil seed banks, plant community structure, and ecosystem functioning are well established. However, the effects of granivores on dryland restoration have received much less attention.
Claire C. Karban, Nichole N. Barger
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Harvester ants modify seed rain using nest vegetation and granivory
Ecological Entomology, 20121. In annual plant communities, the seed bank determines each generation's potential emergence and any factor that influences it could alter community structure. Harvester ants are common seed predators that may cause seed sources and seed rain composition to vary. 2.
NANCY NICOLAI, BERTRAND R. BOEKEN
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The effect of grazing on granivory patterns in the temperate Monte Desert, Argentina
Acta Oecologica, 2006 Structural variations result in a marked heterogeneity of processes in arid environments. Disturbances have noticeable impacts on ecosystems, and a solid way of assessing their effect is to analyze how ecological processes operate. In deserts, granivory has been considered as a keystone process. The objective of our study was to determine the effect of
Carlos E Borghi, Ricardo A Ojeda
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Granivory in the Chihuahuan Desert: Interactions within and between Trophic Levels
Ecology, 1985We investigated the effects of Chihuahuan Desert granivores on three seasonal classes of plant resource species, the effects of these resource classes on one another, and the way in which interactions through plant resources affect the abundances of seed consumers.
D. W. Davidson +2 more
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Granivory in North and South American Deserts: Rodents, Birds, and Ants
Ecology, 1978Experiments which measure seed removal rates of ants, birds, and mammals were conducted in the Sonoran Desert of North America and the Monte Desert of South America. Rodents were the primary consumers in North America, but ants also took large amounts of seeds there.
Michael A. Mares, Michael L. Rosenzweig
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