Results 151 to 160 of about 1,629 (192)
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Granivory in terrestrial isopods
Ecological Entomology, 2008Abstract Granivory (seed feeding) evolved in many animal groups. Field observations hint at the existence of granivory in terrestrial isopods (Crustacea: Isopoda: Oniscidea), for which it was previously unknown. In this paper granivory in terrestrial isopods is addressed for the first time, focusing on (i) seed ...
Pavel Saska
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Granivory in Desert Ecosystems
Annual Review of Ecology, Evolution, and Systematics, 1979Some of the most challenging questions of contemporary biology concern the diversity and stability of ecological communities. In most natural habi tats many coexisting species of plants, animals, and microbes interact as competitors, mutualists, predators, and prey.
James H. Brown +2 more
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Effects of latitude and plant relative abundance on predispersal granivory
Biotropica, 2021AbstractWe 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 seeds.
Brady W. Boyer +7 more
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Seed mucilage as a defense against granivory is influenced by substrate characters
Oecologia, 2023Many seeds are consumed by granivores despite numerous adaptations to prevent detection or exploitation. The environment can influence the efficacy of these defensive traits. Understanding the mechanisms by which environmental factors modify defensive efficacy is important for understanding spatial patterns of granivory and seed recruitment.
Madison E. Stessman +3 more
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Seed reserves in the central Monte Desert, Argentina: implications for granivory
Journal of Arid Environments, 1997Abstract It has been suggested that lower rates of granivory in South American warm deserts compared to their North American counterparts arose from a reduction of seed reserves in the former owing to the extinction of argyrolagid marsupials. We measured seed reserves in two habitats of the central Monte Desert in an attempt to detect such seed ...
Luis Marone
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Effects of forest fragmentation on the granivory of differently sized seeds
Biological Conservation, 2004The Maulino forest is a unique temperate ecosystem restricted to a small range of the coast of central Chile. This forest harbors many endemic species, and is threatened due to intensive deforestation and fragmentation. Currently the Maulino forest is composed of a suite of small fragments scattered in a landscape dominated by exotic plantations.
Denise S Donoso +2 more
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Ecology Letters, 2001
We report a 36‐month echo of vole (Microtus pennsylvanicus) seed‐selection in the composition of synthetic forb communities in Wisconsin. An initial study showed direct suppression of an exceptionally large‐seeded (seed > 15 mg) species (Silphium integrifolium, Asteraceae) by seed‐size predation by rodents during the winter, resulting in indirect ...
H.F. Howe, J.S. Brown
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We report a 36‐month echo of vole (Microtus pennsylvanicus) seed‐selection in the composition of synthetic forb communities in Wisconsin. An initial study showed direct suppression of an exceptionally large‐seeded (seed > 15 mg) species (Silphium integrifolium, Asteraceae) by seed‐size predation by rodents during the winter, resulting in indirect ...
H.F. Howe, J.S. Brown
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Small mammal granivory as a biotic filter for tree establishment beyond elevation range boundaries
Plant Ecology, 2023Jordon C Tourville, Martin Dovčiak
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Journal of Tropical Ecology, 2006
Spatial and seasonal patterns of seed removal by rodents, ants and birds were evaluated using seed-dish experiments in a Trachypogon savanna in Venezuela. Four-day experiments were conducted on three dates and at four different sites. Seeds from 10 native plant species representing a broad mass range were offered at densities equivalent to 3145 seeds m
Elizabeth M. Pérez +3 more
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Spatial and seasonal patterns of seed removal by rodents, ants and birds were evaluated using seed-dish experiments in a Trachypogon savanna in Venezuela. Four-day experiments were conducted on three dates and at four different sites. Seeds from 10 native plant species representing a broad mass range were offered at densities equivalent to 3145 seeds m
Elizabeth M. Pérez +3 more
openaire +1 more source
Rodent-limited establishment of bush lupine: field experiments on the cumulative effect of granivory [PDF]
Journal of Ecology, 2001 Summary Plants often suffer substantial loss of seeds to consumers. However, because the seed‐to‐seedling transition is frequently ignored, quantitative estimates of the effects of seed consumers on plant population dynamics are rare. We examined how post‐dispersal seed predation by rodents affected seedling emergence and subsequent adult plant ...
Ellen Simms
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