مرجع جامع گیاهان زراعی - seed predation research

مرجع جامع گیاهان زراعی

CF Noss… - 96th ESA Annual Meeting, 2011 - eco.confex.com
Granivores have significant impacts on seedling recruitment in many species. Capsaicin in wild
chilies (Capsicum annuum) deters mammalian granivores but does not deter consumption by
birds or insects. This study examined whether gut passage by frugivorous birds ...
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[PDF] from uib.esN Ramírez… - Perspectives in Plant Ecology, Evolution and …, 2010 - Elsevier
Predispersal seed predation (PSP) by insects was studied in a plant community of the
Venezuelan Central Plain (VCP). The main goal was to examine to what extent vegetation
structure and fruit–seed attributes determined the incidence of PSP by insects at the ...
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RE Irwin… - Oecologia, 2011 - Springer
Abstract Many antagonistic species attack plants and consume specific plant parts.
Understanding how these antagonists affect plant fitness individually and in combination is
an important research focus in ecology and evolution. We examined the individual and ...
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[PDF] from nau.eduM Bricker, D Pearson… - Ecology, 2010 - Eco Soc America
Although post-dispersal seed predators are common and often reduce seed density, their
influence on plant population abundance remains unclear. On the one hand, increasing
evidence suggests that many plant populations are seed limited, implying that seed ...
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E Vieira, J Ribeiro… - Journal of Natural History, 45, 2011 - ingentaconnect.com
We investigated the effects of variation in seed density on small-rodent predation of Araucaria
angustifolia seeds. Seed removal experiments were conducted simultaneously in two contrasting
stands (seed-poor - planted with the slash pine Pinus elliottii and seed-rich - planted with ...
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[PDF] from stanford.eduEI Villasenor-Sánchez, R Dirzo… - Journal of Tropical …, 2010 - Cambridge Univ Press
... Copyright © Cambridge University Press 2010 doi:10.1017/S0266467409990447 Importance
of the lilac-crowned parrot in pre-dispersal seed predation of ... Ground-level exclosures were
established to compare post-dispersal seed predation by vertebrates and insects. ...
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DM Bell… - 96th ESA Annual Meeting, 2011 - eco.confex.com
Temperate tree species exhibit interannual and spatial variation in fecundity, and this variation
has important consequences for forest dynamics. A continuum of masting responses can
exist, from relatively constant annual fecundity rates to highly variable and synchronous ...
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CG Chimera… - Biological Invasions, 2011 - Springer
... Two factors that may limit tree recruitment include poor seed dispersal and seed predation
by rodents. ... These results suggest that seed predation is disproportionately concentrated among
poorly-dispersed seeds and may contribute to recruitment failure. ...
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PA Jansen, K Elschot… - Journal of Tropical …, 2010 - Cambridge Univ Press
∗ Community and Conservation Ecology, University of Groningen, PO Box 14, NL-9750 AA
Haren, the Netherlands † Smithsonian Tropical Research Institute, Apartado 0843-03092,
Balboa, Ancón, Panamá, República de Panamá ‡ Center for Ecosystem Studies, ...
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[PDF] from ru.nlMD Visser, E Jongejans, M van Breugel… - Journal of …, 2011 - Wiley Online Library
1Van Hall Larenstein, Wageningen University and Research Centre, Larensteinselaan 26a,
6880 GB Velp, The Netherlands; 2Department of Experimental Plant Ecology, Institute for Water
and Wetland Research, Radboud University Nijmegen, Heyendaalseweg 135, 6525 AJ ...
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[PDF] from shizuoka.ac.jpM Ichihara, K Maruyama, M Yamashita… - Agriculture, Ecosystems …, 2010 - Elsevier
The extent of post-dispersal weed seed predation in upland wheat fields converted from
paddy fields was quantified in Shizuoka Prefecture, central Japan. We investigated the
temporal variability in seed predation of Italian ryegrass (Lolium multiflorum Lam.), a non- ...
All 5 versions
RA Hillyer, MR Silman - The 95th ESA Annual Meeting, 2010 - eco.confex.com
In montane forests plant species are predicted to migrate upslope to track changing temperatures
and avoid extinction. Central to predictions of species responses to climate change is an understanding
of species distributions along environmental gradients. Biotic interactions can play ...
HR Gaines… - Agriculture, Ecosystems & Environment, 2010 - Elsevier
Agri-environmental schemes (AES) are hypothesized to enhance biodiversity and
ecosystem services in agroecosystems. We investigated how non-crop habitats in one AES
influence seed-eating ground beetles (Coleoptera: Carabidae) and post-dispersal weed ...
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A Wassie, T Bekele, F Sterck… - African Journal of …, 2010 - Wiley Online Library
Almost all dry Afromontane forests of Northern Ethiopia have been converted to agricultural,
grazing or scrub lands except for small fragments left around churches ('Church forests'). Species
regeneration in these forests is limited. We investigated (i) how intense postdispersal ...
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P Manzano, FM Azcárate, B Peco… - Oikos, 2010 - Wiley Online Library
Seed dispersal involves several complex stages that can be affected by multiple peripheral
processes. Thus, a major dispersal event can be followed by secondary dispersal, which can
reduce density-dependent mortality and consolidate the dispersal phase. But predation ...
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C Zong, LA Wauters, S Van Dongen, V Mari… - Forest Ecology and …, 2010 - Elsevier
... 2010. Available online 9 June 2010. Abstract. Seed predation and dispersal are key
processes in the survival and distribution of plant species. Many ... View Within Article. 3.3.
Pre-dispersal seed predation of Arolla pine cones. Pre-dispersal ...
Cited by 1 - All 6 versions
[PDF] from cnrs.frH Meiss, L Le Lagadec, N Munier-Jolain… - Agriculture, Ecosystems …, 2010 - Elsevier
Vegetation cover may affect weed seed predation by modifying the habitat quality for
predatory organisms. Post-dispersal weed seed predation was measured by placing 'seed
cards' in two perennial crops (alfalfa, cocksfoot) with and without crop cutting and in plots ...
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LCCR De Menezes, J Klein, D Kestring… - Basic and applied …, 2010 - Elsevier
Seed predators that severely affect seed germination rates are well known for many plant
species. Here, we hypothesised that due to differences in resource allocation within fruits,
seed predation can negatively affect non-predated seeds in infested fruits when predation ...
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[PDF] from colorado.eduDG Knochel, C Flagg… - Biological Invasions, 2010 - Springer
Abstract We measured seed germination and seedling survivorship of spotted knapweed,
Centaurea stoebe, in a series of laboratory and field experiments to evaluate the efficacy of
seed limitation as a management focus. This work was initiated 6 years after introduction ...
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J Sanguinetti… - Biological Invasions, 2010 - Springer
Abstract Post-dispersal seed predation can severely limit plant recruitment, but its ultimate
impact could be modulated by environmental factors and by the composition of the granivore
guild. Here, we analyze the relative impact of the non-native wild boar and native rodents ...
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[PDF] from nau.eduR Zwolak, DE Pearson, YK Ortega… - Ecology, 2010 - Eco Soc America
In fire-adapted ecosystems, fire is presumed to be the dominant ecological force, and little is
known about how consumer interactions influence forest regeneration. Here, we
investigated seed predation by deer mice (Peromyscus maniculatus) and its effects on ...
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[PDF] from theburkelab.orgJM DECHAINE, JC BURGER… - Molecular Ecology, 2010 - theburkelab.org
Crop-wild hybridization has been documented in many cultivated species, but the ecological
and genetic factors that influence the likelihood or rate that cultivar alleles will introgress into
wild populations are poorly understood. Seed predation is one factor that could mitigate ...
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M ICHIHARA, K MARUYAMA, Y ADACHI… - 2010 - ir.library.tohoku.ac.jp
Agricultural biodiversity provides many ecological services, including pest control, and supports
sustainable crop production. Post-dispersal seed predation is one of the main causes of weed
seed mortality and could con- tribute to biological weed control (Westerman et al. 2003, ...
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[PDF] from univ-rennes1.frA Atlan, M Barat, AS Legionnet… - Journal of …, 2010 - Wiley Online Library
The genetic variation in flowering phenology may be an important component of a species' capacity
to colonize new environments. In native populations of the invasive species Ulex europaeus,
flowering phenology has been shown to be bimodal and related to seed predation. The ...
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[PDF] from umt.eduST McKinney… - Oecologia, 2010 - Springer
Abstract Differential responses by species to modern perturbations in forest ecosystems may
have undesirable impacts on plant-animal interactions. If such disruptions cause declines in
a plant species without corresponding declines in a primary seed predator, the effects on ...
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PG Blendinger… - Oecologia, 2010 - Springer
... Abstract The spatial context in which seed predation occurs may modify the spatial structure of
recruitment gen- erated by seed dispersal. ... Nut removal coincided with seed predation, a condition
that allowed us to test the density-dependent seed predation hypothesis. ...
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CM Dracxler, AS Pires… - Biotropica, 2011 - Wiley Online Library
Because most invertebrate seed predators are host-specific, they are usually expected to produce
Janzen–Connell patterns. This expectation was fulfilled for Astrocaryum but not for
Allagoptera, depending on the effects of bruchine and scolytine predators on the seeds of ...
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PHS Brancalion, RR Rodrigues… - Biotropica, 2011 - Wiley Online Library
Pedro HS Brancalion1,2,4, Ricardo Ribeiro Rodrigues2, Ana DLC Novembre2, and José M.
Gómez3 1 Centro de Ciências Agrárias, Universidade Federal de Sa˜o Carlos, Rodovia Anhanguera
km 174 – SP-330, 13600-970 Araras, Brazil 2 Escola Superior de Agricultura 'Luiz de ...
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[PDF] from harvard.eduFA Jones… - Oikos, 2010 - Wiley Online Library
Negative density-dependent demographic processes operating at post-dispersal seed,
seedling, and juvenile stages are the dominant explanation for the coexistence of high numbers
of tree species in tropical forests. At adult stages, the effect of pollinators and ...
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PR Westerman, CD Luijendijk, JDA Wevers… - Weed …, 2011 - Wiley Online Library
Seed predation of weed seeds in crops depends on the seasonal overlap between seed availability
and the activity period of the predators. Published data show that the activity period of seed predators
is directly related to canopy cover. In phenologically early crops, such as cereals, ...
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AS Davis… - Weed Research, 2010 - Wiley Online Library
Weed seed predation is an important ecosystem service supporting weed management in
low-external-input agroecosystems. Current knowledge of weed seed pre- dation focuses on
biotic mechanisms, with less undersa- tanding of the relative impact of abiotic variables. ...
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[PDF] from ajol.infoBK Kunz… - West African Journal of Applied Ecology, 2011 - ajol.info
Introduction Fruit removal by frugivores is a prerequisite of seed dispersal in animal-dispersed
plants and, thus, an important component of plant fitness (Izhaki, 2002). Removal efficiency, ie
the proportion of the total fruit crop removed from an individual plant, provides a first ...
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[PDF] from wustl.eduM Craig - 2010 - enst.wustl.edu
Page 1. Characterizing post-dispersal seed predation in the matrix of a connected landscape:
spatial, temporal and species-specific variation and its effect on biodiversity spillover ... increased
diversity. I investigated seed predation by counting the number of remaining seeds in ...
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RD van Klinken… - Biological Control, 2011 - Elsevier
... Predation rates were consistently above 70% in pig dung and reached 77% in emu
dung from north Queensland, but averaged only 16% in cow dung. Seed predation
rates were similar for both seeds within endocarps and free seeds. ...
B Baraibar, E Carrión, J Recasens… - Biological Control, 2010 - Elsevier
Seed predation can cause significant losses of weed seeds in agricultural systems and can,
thus, contribute to weed control. The removal of Lolium multiflorum and Vicia villosa seeds
by harvester ants, Messor barbarus, and granivorous rodents, Mus spretus, in six cereal ...
DB Koyabu… - American journal of physical …, 2010 - Wiley Online Library
1The University Museum, The University of Tokyo, Tokyo 114-0033, Japan 2Department of Biological
Sciences, Graduate School of Science, The University of Tokyo, Tokyo 114-0033, Japan ... KEY
WORDS ecomorphology; masticatory apparatus; bite force; seed eating
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[PDF] from fs.fed.usA Leslie… - Notes, 2011 - fs.fed.us
Abstract—Whitebark pine is a keystone species of high elevation forests in western North America
that is experiencing rapid de- cline due to fire exclusion policies, mountain pine beetle, and the
introduced pathogen, white pine blister rust. Restoration activities include collecting ...
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MF Ramos-Ordoņez… - Journal of Arid Environments, 2011 - Elsevier
Parthenocarpy (production of seedless fruits) is a characteristic associated with a strategy to
reduce seed predation by birds and to increase the attractiveness to frugivorous birds. Red cuajiote
(Bursera morelensis) is an endemic tree species of Mexico that produces seeded and ...
K Sasakawa - Environmental Entomology, 2010 - ingentaconnect.com
Granivory is a specialized food habit in the predominantly carnivorous beetle family
Carabidae. Most studies of carabid granivory have been conducted under laboratory
conditions; thus, our knowledge of the feeding ecology of granivorous carabids in the field ...
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EPCA DE SAMPAIO - Biotropica, 2010 - cat.inist.fr
The goal of this study was to ascertain why the production of variable seediness is advantageous
for Attalea phalerata palms. Our hypothesis was that variation reduces seed predation by the
spiny rats Thrichomys pachyurus and Clyomys laticeps. Although there is a positive ...
D Tsegaye, SR Moe… - Journal of Arid Environments, 2011 - Elsevier
We studied current recruitment failure of Dobera glabra, an important famine-food throughout
the dryland parts of the Horn of Africa. The species has previously been found to have recalcitrant
seeds, a strategy not common for plants in dryland areas. We experimentally tested (1) ...
[PDF] from illinois.eduJW Dalling, AS Davis, BJ Schutte… - Journal of …, 2010 - Wiley Online Library
... Weed Science, 44, 534–539. Carmona, DM, Menalled, FD & Landis, DA (1999) Gryllus
pensylvanicus (Orthoptera: Gryllidae): laboratory weed seed predation and within field
activity-density. Journal of Economic Entomology, 92, 825–829. ...
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[PDF] from inia.esME Lucas-Borja, P Silva-Santos, T Fonseca… - Forest …, 2010 - revistas.inia.es
In this research work, we specifically address post-dispersal Spanish black pine (Pinus nigra
Arn. ssp salzmannii) seed predation at two different locations, one being the most common and
representative location for the species and the other located on areas at their ecological ...
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B LIU, R WANG, Y LIU, G XU… - Chinese Journal of Ecology, 2011 - en.cnki.com.cn
... 【Key Words】: disturbance intensity seed predation seed dispersal rodent
Castanopsis sclerophylla 【Fund】: 国家自然科学基金项目(30970430)资助 【CateGory
Index】: Q948;S792.17 【DOI】: CNKI:SUN:STXZ.0.2011-08-014. ...

M ICHIHARA, K MARUYAMA… - Agriculture, ecosystems …, 2011 - cat.inist.fr
... Titre du document / Document title. Erratum to "Quantifying the ecosystem service of non-native
weed seed predation provided by invertebrates and vertebrates in upland wheat fields converted
from paddy fields" [Agric. Ecosyst. Environ. 140 (2011) 191―1981. ...
B Baraibar, PR Westerman, E Carrión… - Phytoma España, 2010 - agris.fao.org
La depredación de semillas de malas hierbas parece ser la causa de la mayoría de las pérdidas
de semillas que se producen después de su dispersión. Para evaluar las consecuencias potenciales
que cambios en el manejo de los cultivos pueden tener sobre el control natural de malas ...
K Boa-Antwi - 2010 - gradworks.umi.com
... Abstract: Predispersal seed predation is a critical factor limiting population recruitment among
a number of coniferous species in natural systems. Introduced species, a major threat to
biodiversity, can cause high levels of predispersal seed predation. ...
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A RAYMOND - 2010 GSA Denver Annual Meeting, 2010 - gsa.confex.com
Pennsylvanian seeds and ovules pose an intriguing paleoecological problem. Thick, woody
seed coats, variations in seed coat morphology, and the occurrence of drilled ovules suggest
that insect and vertebrate seed predation occurred in the Pennsylvanian. In addition to ...
[HTML] from tesisenred.netB Baraibar Padró - 2011 - tesisenred.net
La depredación de semillas puede causar pérdidas significativas de semillas de malas hierbas
en sistemas agrícolas y, por lo tanto, puede contribuir al control de dichas hierbas.
Actualmente, el conocimiento existente acerca de la identidad y contribución relativa de ...
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