دانلود رایگان مقاله لاتین اثر فنولوژی گل بر پویایی اجتماعی زنبور عسل از سایت الزویر
عنوان فارسی مقاله:
تاثیر فنولوژی گل بر پویایی اجتماعی زنبور عسل در مزارع قدیمی تسلط شده توسط گونه مهاجم گل گندم
عنوان انگلیسی مقاله:
Flowering phenology influences bee community dynamics in old fields dominated by the invasive plant Centaurea stoebe
سال انتشار : 2016
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مقدمه انگلیسی مقاله:
1. Introduction
Declines in wild and managed bee populations have recently triggered investigation of the factors that allow robust communities of bees to persist in a landscape. Recent declines in wild bee populations have been linked to habitat fragmentation (Potts et al. 2010), disease (Cameron et al. 2011), pesticides (Fischer & Moriarty 2014), loss of floral resources (Kleijn & Raemakers 2008), and climate-change (Kerr et al. 2015). Because bees often use many habitats within a landscape (Williams&Kremen 2007), increasing the concentration and quality of resource-rich habitats(i.e., habitats containing abundant floralresources) enhances native bee abundance and diversity within a given landscape (Kremen, Williams, Bugg, Fay, & Thorp 2004). Native bee community structure is largely determined by the types and diversity of flowering plants available within a habitat, and increasing flowering plant species richness is linked to increasing bee species richness (Moron´ et al. 2009; Wilson, Messinger, & Griswold 2009; Grundel et al. 2010). While the relationship between flowering plant diversity and bee diversity has been clearly demonstrated, the mechanisms that drive this relationship in regions where the majority of bees are generalists are not completely understood (Fründ, Linsenmair, & Blüthgen 2010). Increasing plant diversity generally allows more animal species to coexist via niche partitioning (Vellend 2008), and beesmay be able to avoid competition by visiting different forb species when other bee species are present(Fründ, Dormann, Holzschuh, & Tscharntke 2013).Additionally, visitingmultiple forb species may help certain generalist bee species obtain the complete balance of nutrients their offspring require for development (Alaux, Ducloz, Crauser, & Le Conte 2010). Whatever the mechanistic causes of this relationship, the loss or alteration of diverse plant communities has major implications for bee conservation. Invasive weeds have been widely demonstrated to decrease the abundance, diversity, and fitness of native plant species (Vila et al. 2010). Their impact on native bees is less straightforward, and likely depends on the land-use history of a landscape. In “novel ecosystems” in which invasive species compose a large proportion of the biotic community, they may sustain ecosystem services that native species can no longer provide (Hobbs, Higgs, & Harris 2009). For instance, invasive plants have been shown to provide native bees with floral resources where native plants are no longer abundant (Williams, Cariveau, Winfree, & Kremen 2011). In landscapes with more intact native plant communities, invasives can have a negative impact on bees: Moron´ et al.(2009)found that the invasion of the goldenrods Solidago canadensis L. and Solidago gigantea Aiton in Poland caused a significant decrease in the abundance, species richness, and evenness of bees in wet meadows. Overall, the impacts of invasive plants are complex, and insufficient research has been performed to make specific predictions about the impacts of invasive plants on bees (Vanbergen 2013). Centaurea stoebe L. ssp. micranthos (Gugler) Hayek (spotted knapweed) (Asteraceae) (hereafter C. stoebe or knapweed) is an invasive forb with the potential to impact native and managed bee communities. The plant was introduced to North America in the 1890s, and has since become a widespread invasive species throughout much of the continent’s temperate zone (Sheley, Jacobs, & Carpinelli, 1998).In Michigan,C.stoebe dominatesmany disturbed sites including old-fields, and threatens intact natural areas with invasion (Albert 1999; Cohen 2000; Kost 2004; Lee 2007). Because of its negative impacts, C. stoebe is the target of management efforts including hand pulling, cultivation, and chemical or biological controls (Carson, Bahlai, & Landis 2015). While the negative impacts ofC.stoebe on native plant communities are significant, this species is highly valued by beekeepers. Its relatively long bloom period, attractiveness,
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کلمات کلیدی:
Flowering phenology influences plant diversity-Bee community ... https://scholars.opb.msu.edu/.../flowering-phenology-influences-pl... Translate this page Apr 24, 2015 - Flowering phenology influences plant diversity-Bee community dynamics in old fields dominated by the invasive plant Centaurea stoebe. Flowering phenology influences bee community dynamics in old fields ... www.zoodyab.ir/.../85205-flowering-phenology-influences-bee-co... - Translate this page Apr 13, 2016 - ... influences bee community dynamics in old fields dominated by the invasive ... In this study we investigated the influence of the exotic invasive ... پاد: Flowering phenology influences plant diversity—bee community ... pad.um.ac.ir/file/view/11133614 Translate this page Flowering phenology influences plant diversity—bee community dynamics in old fields dominated by the invasive plant Centaurea stoebe. Flowering phenology ... Latest paper - Dr. Christie Bahlai - Google Sites https://sites.google.com/site/cbahlai/news/latestpaper Apr 22, 2016 - Flowering phenology influences plant diversity—bee community dynamics in old fields dominated by the invasive plant Centaurea stoebe ... Print Page - Google Sites https://sites.google.com/site/cbahlai/cv?tmpl...showPrintDialog=1 Cover crops have neutral effects on predator communities and biological control ... influences bee community dynamics in old fields dominated by the invasive ... Christie Bahlai (0000-0002-8937-8709) - ORCID | Connecting ... https://orcid.org/0000-0002-8937-8709 Cover crops have neutral effects on predator communities and biological control ... influences bee community dynamics in old fields dominated by the invasive ... Jason Gibbs - University of Manitoba umanitoba.ca/faculties/afs/dept/entomology/personnel/Gibbs.html Carson, B., Bahlai, C.A., Gibbs, J. & Landis, D.A. (2016) Flowering phenology influences bee community dynamics in old fields dominated by the invasive plant ...
