The NAA 2018 Pollinator Management webinar series will be seven webinars 
presented every other Wednesday in March and April, starting with March 
7. This series serves as a companion initiative to an NAA Synthesis 
Paper on Pollinator Health and Resilience in Natural Areas Management 
that will come out in 2018. NAA is proud to present this series with 
support from the U.S. Forest Service.

Some of the information contained in this series was originally shared 
in the Pollinator Symposium at the 2017 Natural Areas Conference. Go to to register for all webinars.

Time: Wednesday, March 7, noon Eastern   
Speaker: Kelly Rourke, Program Coordinator - Pollinator Partnership
Talk 1: (10-15 minutes) Managing Pollinators in Natural Areas: A 
Synthesis of New Research and BMPs Presented at the 2017 Natural Areas 
Conference Pollinator Symposium

Pollinators play a critical role in supporting natural areas. As 
managers of natural systems, we are mindful, cautious, and curious about 
how to proceed with management actions that provide the best results for 
pollinators. The 2017 Natural Areas Conference Pollinator Symposium 
showcased new research filling gaps in our understanding of grazing and 
alpine forest management, as well as summaries of Best Management 
Practices for restoring prairies, managing honey bees, supporting 
monarch butterflies, and managing rangelands. Highlights and key 
messages from the symposium are presented in this summary webinar, 
setting the state for in-depth presentations offered by the presenters 
throughout the spring. 

Talk 2: (35-40 minutes) Resource-based Competition Between Managed and 
Wild Bees

Food resource overlap between managed honey bees and wild bees presents 
potential challenges in management scenarios where natural forage is 
sought for honey bees. Natural areas managers seek guidance in decision 
making, ideally based on evidence from current research. Pollinator 
Partnership has aggregated and reviewed research on bee competition with 
the goal of presenting guidance and best management practices. This 
webinar reviews the body of research on bee competition in detail, 
examining methods, experimental techniques, and rigor, and presents 
guidance based on these findings. Only limited research has been 
conducted on bee competition, and it presents mixed findings; however, 
some consistent trends in growth limitation and reduced colony 
reproduction in bumble bees in the presence of honey bees provides 
context for management decisions.  


Time: Wednesday, March 21, noon Eastern

Talk 1: Mary Rowland, Research Wildlife Biologist, U.S. Forest Service; 
and Dr. Sandra DeBano, Associate Professor - Invertebrate Ecology, 
Oregon State University: Native Bees and Large Mammals: Vertebrate - 
Invertebrate Interactions in Riparian Natural Areas 

Land managers have increased efforts to better understand how natural 
areas can be managed to enhance native pollinators; however, pollinator 
management must be balanced with other uses such as livestock grazing 
and wildlife habitat. Yet little attention has focused on how grazing 
mammals, especially native ungulates, interact with pollinators. As part 
of a larger, collaborative project evaluating ungulate grazing 
management and riparian restoration at the Starkey Experimental Forest 
and Range (Starkey) in northeast Oregon, we examined how large mammals 
may influence native bees through dietary overlap. We sampled native 
bees and floral resources from spring to fall in 2014-2016 along a 14-km 
reach of Meadow Creek within Starkey to 1) document which flowering 
species are most commonly visited by native bees, and 2) quantify how 
herbivory by deer and elk influences flowering plant communities. Half 
of the 12 sampling sites were excluded from grazing. We recorded >150 
species of flowering forbs and shrubs and >900 bee visitors of >80 
species. Flowering stems were generally more abundant in ungrazed vs. 
grazed sites; however, patterns were highly variable in time and space 
and across species. For some plants frequently visited by bees and also 
in elk diets (e.g., Potentilla gracilis), we found higher flower 
abundance in ungrazed sites. We discuss management implications relative 
to seasonal habitat use and dietary preferences of ungulates and 
variation in bee phenology, and conclude with guidance about timing and 
intensity of ungulate grazing when managing for multiple conservation 
objectives in grazed sites, especially in riparian areas.

Talk 2: Thomas Kaye, Executive Director and Senior Ecologist at the 
Institute for Applied Ecology: Partnering with Pollinators: Prairie 
Restoration to Support Diverse Pollinating Insects
Insects are important pollinators of many plants, from agriculturally 
significant species to plants in natural areas. Pollinators and plants 
depend on one another for completion of their life cycles and together 
they serve significant ecosystem functions. Restoration and management 
of prairie habitat in the Pacific Northwest provides an opportunity to 
improve conditions for many pollinators, and land managers can provide 
better conditions for these insects by providing for basic life-history 
needs of major insect groups, especially through providing a diversity 
of plants that provide nectar and pollen as food, as well as nesting 
habitats. Research on habitat restoration in this region at multiple 
upland and wetland sites shows that flowering plant diversity can be 
increased by combinations of management treatments that include seeding 
with native plants after burning and herbicide applications. Although 
these treatments can improve conditions for food plants of insects, they 
can also harm or kill them, so it may be important to apply such 
treatments over portions of managed landscapes rather than all at once 
across managed sites. Strategies that combine improvements in plant 
diversity and overlapping bloom periods throughout the growing season 
with habitat features such as bare ground, availability of dead hollow 
or pithy stems of woody plants, and leafy materials, can optimize food 
and nesting conditions for multiple species of pollinating insects while 
achieving many other restoration goals. 


Time Wednesday, April 4, noon Eastern  
Talk 1: Dave Waldien, Affiliated Scholar, Christopher Newport 
University: Management Considerations of Pollinating Bats on Wind and 
Solar Farms

Talk 2: Peter Beesley, Vegetation Program Manager, Expert - Pacific Gas 
and Electric Company: Utility Right-of-Way Management that Supports 
Pollinators and Safe Energy Transmission

The federal strategy to promote the health of pollinators and the 
associated research action plan directs federal agencies to collaborate 
with multiple stakeholders to ensure pollinators have the right native 
plant communities for food and shelter. The strategy recognizes the 
importance that utility rights-of-way can play
when considering the extent of this landscape type; their connectivity 
and intersection with multiple habitats; and the desirable management 
regimes that maintain a forb-dominated early successional landscape. 
With our non-profit, university and other utility partners, Pacific Gas 
and Electric Company (PG&E) is on the forefront of implementing 
pollinator habitat use research within electric transmission rights-of-
way in the Western United States. This presentation will emphasize how 
the practical application of Integrated Vegetation Management (IVM) to 
support safe and reliable energy transmission goals also supports the 
federal strategy’s habitat, research and partnership goals. This 
information along with an overview of current and planned pollinator 
research that PG&E and its partners are involved with will help answer 
the action plan research questions that are being asked of right-of-way 
managers. Specifically: What are the best practices for supporting 
pollinators on rights-of-way? What plants are suitable for both 
pollination and management constraints? How do pesticide/herbicide 
applications affect pollinators and their habitats? Study results 
indicate increased pollinator use on sections of right-of-way managed 
through IVM. Knowledge gained by PG&E and its partners will further the 
utility industry’s ability to implement pollinator-friendly land 
management techniques and to create connected habitat corridors while 
also implementing best practices that support safe energy transmission.

Time: Wednesday, April 18, noon Eastern  
Talk 1: Scott Hoffman Black, Executive Director, Xerces Society: Best 
Management Practices for Pollinators: Creating Practices that are 
Meaningful and Implementable for Rangelands

Rangelands account for a substantial portion of the Western US. These 
lands are essential for the conservation of pollinators of all types. 
The Xerces Society is working with the U.S. Forest Service to develop 
meaningful and implementable Best Management Practices (BMPs) for 
pollinators on western rangelands with a major focus on habitat 
protection, management, enhancement and restoration. These guidelines 
will address the needs of native bees and butterflies, including the 
monarch butterfly. The Xerces Society is using a process that we 
developed working with the Federal Highway Administration on 
publications that provide guidance on the science and practice of 
roadside management for pollinators. The steps include 1) a thorough 
literature review of all peer-reviewed literature and technical 
materials on the topic of rangeland management and restoration to 
enhance pollinator habitat value, 2) interviews with practitioners and 
others that understand the science, practice, and economic issues 
related to pollinator conservation and habitat management in rangeland 
systems. All of the information is summarized into clear, concise 
guidance that can be used by agency staff for “real world” field 
application. We are specifically looking at how this body of information 
can be applied in western North American rangeland settings while 
considering feasibility relative to existing practices, guidelines, and 
budgetary limits. These BMPs provide a roadmap for how we can better 
manage rangeland pollinators and a process for successful BMP creation.  

Talk 2: Jim Cane, Research Entomologist, USDA-ARS Pollinating Insect 
Research Unit: Calculated Floral Resource Withdrawal by Managed Honey 
Bees in Light of Native Bee Reproduction

Reply via email to