Join us for our final #STEMWeek event!
On Friday, October 22nd , 2021, from 12–1pm, STEM Mentor Belunda Moise will present her Stonehill College senior thesis, “Analysis of native bee nesting guild richness and abundance in an urban ecosystem in Southeastern Massachusetts” in lieu of our weekly Journal Club meeting.
Abstract: Native bees are essential for maintaining ecosystem health because they play a major role in plant pollination. Reports of declines in native bee communities have been attributed to urbanization, prompting research analyzing factors of urban ecosystems that may contribute to these declines. Urbanization is thought to reduce habitat availability, which would negatively impact native bees. For instance, the amount of paved land may make it difficult for ground-nesting bees to find appropriate nesting sites. Previous studies investigating lack of habitat resources for bees in urban ecosystems have often evaluated the bee community as one group. In this study, we analyze the relationships between bee nesting guild abundance, richness, and urbanization using forest area, forest fragmentation, and impervious area as proxies at six sites along an urban gradient. Bombus is excluded from the ground-nester guild and analyzed as an individual group due to its unique eusocial behavior amongst other ground nesters. Nesting guild abundance and richness were negatively correlated with urbanization, but the strongest relationships were obtained for ground-nesting bees. Our analysis failed to indicate a statistically significant difference between the relationships of nesting guild abundance and richness with urbanization, indicating that our local ecosystem may provide enough nesting sites to support various bees. However, Bombus abundance was positively correlated with urbanization, contrary to other ground-nesting bees. Therefore, comparative ecology between Bombus and other bees may provide a better understanding of their interactions with urban ecosystems.
Meeting ID: 549 554 5262
Massasoit STEM events are open to ALL Massasoit students, faculty, and staff.
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