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Heterogeneous Planting Design Suppor...

McCormick, Molly L.

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Heterogeneous Planting Design Supports Rich and Abundant Pollinator Communities to Minimize Use of Restoration Resources in Arid Lands.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Heterogeneous Planting Design Supports Rich and Abundant Pollinator Communities to Minimize Use of Restoration Resources in Arid Lands./
作者:	McCormick, Molly L.
出版者:	Ann Arbor : ProQuest Dissertations & Theses, : 2017,
面頁冊數:	57 p.
附註:	Source: Masters Abstracts International, Volume: 56-04.
Contained By:	Masters Abstracts International56-04(E).
標題:	Ecology. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=10282369
ISBN:	9781369837070

Heterogeneous Planting Design Supports Rich and Abundant Pollinator Communities to Minimize Use of Restoration Resources in Arid Lands.
McCormick, Molly L.

Heterogeneous Planting Design Supports Rich and Abundant Pollinator Communities to Minimize Use of Restoration Resources in Arid Lands. - Ann Arbor : ProQuest Dissertations & Theses, 2017 - 57 p.

Source: Masters Abstracts International, Volume: 56-04.

Thesis (M.S.)--Northern Arizona University, 2017.

This study examined floral visitor response to pollinator habitat size, distance between habitat patches, and floral richness and abundance. We hypothesized that habitat isolation, along with decreased abundance and low richness of flower species, would negatively impact per-flower pollinator visitation rates, visitor taxon richness, and mutualistic network dynamics. In addition, we hypothesized that visitor community composition would shift in response to these same variables. To test these hypotheses, we created a pollinator habitat experiment in central Arizona, consisting of a large central garden surrounded by concentric rings of smaller habitat plots, separated from one another by one, eight, 13, and 21 m. Plant and visitor interactions were observed over a three-month period. Five statistically significant findings emerged: 1. Different visitor taxa visited different suites of plant species. 2. Flowering phenology strongly influenced both visitation by visitor groups, and composition of the visitor community. 3. Isolation of greater than 13 m reduced visitor richness and nestedness of the mutualistic network, but had no effect on visitation rate or other network metrics. 4. Plant species richness predicted visitor group richness, but not the rate of visitation. 5. Individual plots inside the single large garden had greater floral abundance and richness than individual isolated small plots, but this did not affect visitation rate to those isolated plots. For restoration practitioners and land managers looking to support pollinator systems across fragmented landscapes, the results of this study suggest that installing species-rich and florally-abundant large habitats that persist over time should be a priority of pollinator habitat restoration efforts. In addition, increasing the quality of forage in the greater landscape surrounding the garden is critical, so that large gardens are supplemented by smaller plots to minimize expenditures of resources of time and money.

ISBN: 9781369837070Subjects--Topical Terms:

516476
Ecology.

Heterogeneous Planting Design Supports Rich and Abundant Pollinator Communities to Minimize Use of Restoration Resources in Arid Lands.
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