Results 21 to 30 of about 614 (154)
Post-dispersal seed predation in the hedgerows of agroecosystems in southern Chile
Agricultural ecosystems host a large variety of organisms that can contribute to weed control through seed consumption. However, seed consumption rates in the agroecosystems of southern Chile are virtually unknown.
Alberto G. Gantz, Carlos E. Valdivia
doaj +1 more source
Suppression of weed communities by granivores over time in an agroecosystem
Invertebrate granivore communities can consume numerous weed seeds in cropland, but how this granivory influences weed recruitment over time in continuous no‐till systems is unknown.
Jonathan G. Lundgren, Randy L. Anderson
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Lepidopteran Granivory Reduces Seed Counts in a Rare Species of Riparian Scour Prairies [PDF]
In Pennsylvania Baptisia australis var. australis is found along only four waterways: the Allegheny River, Youghiogheny River, Clarion River, and Red Bank Creek.
McDonnell, Angela J. +3 more
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Effects of latitude and plant relative abundance on predispersal granivory
We examined predispersal granivory in common and rare bird-dispersed plants in two tropical and two temperate communities. Our results show that the prevalence and intensity of predispersal granivory are higher in tropical communities and for smaller ...
Amico, Guillermo Cesar +15 more
core +1 more source
Fruits of Gevuina avellana (Proteaceae) seem to mimic wasp-induced galls of Nothofagus dombeyi (Nothofagaceae) to escape predation by rodents, which may change both spatially and temporarily.
Gabriela A.E. López-Colin +4 more
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Grazing Impact on Plant Seed Production in Southern Mongolia [PDF]
Nomadic livestock husbandry practices have a long history in Mongolia and still represent the main form of land use. Because of increasing livestock numbers, the danger of overgrazing and steppe degradation is on the rise. Nevertheless,
Christine Bläß +3 more
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Burial-induced changes in the seed preferences of carabid beetles (Coleoptera: Carabidae)
Seeds of many species of plants may survive for a long time in the soil and germinate when brought to the surface, but whether they are subsequently eaten by seed predators is unknown. We examined the preferences of three species of carabids (Coleoptera:
Pavel SASKA +3 more
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Effect of weed patch size on seed removal by harvester ants
In dryland cereals in North-eastern Spain, the harvester ant, Messor barbarus L., is responsible for removal of a large proportion of the newly produced weed seeds (40-100%).
Westermann, Paula R. +2 more
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Spatial and temporal dynamics of two cacti seed banks in a xerophytic shrubland in Mexico City
Background: Soil and aerial seed banks directly affect recruitment in plant populations. Soil banks result as the balance between seed inputs and outputs. Seed bank dynamics vary by species and environmental conditions.
Itzel Guzmán-Vázquez +3 more
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Contrasting effects of grazing on the early stages of woody encroachment in a Neotropical savanna
Woody encroachment in savannas represents an ecological process of current global interest given its negative impact on ecosystem functioning, particularly on forage production.
Lucía S. Mochi +3 more
doaj +1 more source

