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Bumble Bee Niche Overlap Along an El...

University of Colorado at Boulder., Ecology and Evolutionary Biology.

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Bumble Bee Niche Overlap Along an Elevation Gradient: How Traits Can Inform Novel Competitive Pressures Under Climate Change.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Bumble Bee Niche Overlap Along an Elevation Gradient: How Traits Can Inform Novel Competitive Pressures Under Climate Change./
作者:	Barthell, Kaitlyn Marie.
出版者:	Ann Arbor : ProQuest Dissertations & Theses, : 2023,
面頁冊數:	50 p.
附註:	Source: Masters Abstracts International, Volume: 85-03.
Contained By:	Masters Abstracts International85-03.
標題:	Ecology. -
電子資源:	https://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=30575643
ISBN:	9798380362290

Bumble Bee Niche Overlap Along an Elevation Gradient: How Traits Can Inform Novel Competitive Pressures Under Climate Change.
Barthell, Kaitlyn Marie.

Bumble Bee Niche Overlap Along an Elevation Gradient: How Traits Can Inform Novel Competitive Pressures Under Climate Change. - Ann Arbor : ProQuest Dissertations & Theses, 2023 - 50 p.

Source: Masters Abstracts International, Volume: 85-03.

Thesis (M.A.)--University of Colorado at Boulder, 2023.

Climate change-induced range shifts can disrupt interactions among species by moving them in and out of ecological communities. These disruptions can include impacts on competition for shared resources. Bumble bees (Bombus spp.) are important pollinators shifting their range upwards in elevation in response to climate change. These shifts could lead to altered competition among species and threaten co-existence. These impacts are particularly worrying at the tops of mountains where bumble bees are "trapped" and can no longer move up to higher elevations to track climate change. To better understand this issue, we investigated changes in diet niche overlap among bumble bee species along a 2296m elevation gradient in the southern Rocky Mountains. Additionally, we investigated how morphological and phenological traits impact diet composition (flower species visited) among bumble bee species and explored how the continued upward movement of bumble bee species under climate change into the mountaintop may affect trait overlap of newly co-occurring species. We found that diet niche overlap among bumble bee species increased with elevation. We also found that differences in morphological and phenological traits (body size, tongue length, date of activity) were correlated with differences in diet composition among bumble bee species. Finally, we described how the movement of bumble bee species from lower elevations into the mountain top would lead to increased trait overlap and likely more species sharing similar flowers. These shifts could have implications for future competition for resident high-elevation species on mountaintops and exacerbate the effects of climate change on high-elevation bumble bees.

ISBN: 9798380362290Subjects--Topical Terms:

516476
Ecology.
Subjects--Index Terms:

Alpine

Bumble Bee Niche Overlap Along an Elevation Gradient: How Traits Can Inform Novel Competitive Pressures Under Climate Change.
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300 $a 50 p.
500 $a Source: Masters Abstracts International, Volume: 85-03.
500 $a Advisor: Resasco, Julian.
502 $a Thesis (M.A.)--University of Colorado at Boulder, 2023.
520 $a Climate change-induced range shifts can disrupt interactions among species by moving them in and out of ecological communities. These disruptions can include impacts on competition for shared resources. Bumble bees (Bombus spp.) are important pollinators shifting their range upwards in elevation in response to climate change. These shifts could lead to altered competition among species and threaten co-existence. These impacts are particularly worrying at the tops of mountains where bumble bees are "trapped" and can no longer move up to higher elevations to track climate change. To better understand this issue, we investigated changes in diet niche overlap among bumble bee species along a 2296m elevation gradient in the southern Rocky Mountains. Additionally, we investigated how morphological and phenological traits impact diet composition (flower species visited) among bumble bee species and explored how the continued upward movement of bumble bee species under climate change into the mountaintop may affect trait overlap of newly co-occurring species. We found that diet niche overlap among bumble bee species increased with elevation. We also found that differences in morphological and phenological traits (body size, tongue length, date of activity) were correlated with differences in diet composition among bumble bee species. Finally, we described how the movement of bumble bee species from lower elevations into the mountain top would lead to increased trait overlap and likely more species sharing similar flowers. These shifts could have implications for future competition for resident high-elevation species on mountaintops and exacerbate the effects of climate change on high-elevation bumble bees.
590 $a School code: 0051.
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650 4 $a Botany. $3 516217
650 4 $a Entomology. $3 615844
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653 $a Montane
653 $a Plants
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793 $a English
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