Continued Field Surveys of Aquatic and Terrestrial Plant Species of Special Concern in Eastern Pennsylvania and PNDI Project Review Assistance

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Botany
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Block, Timothy A
Rhoads, Ann F
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Aquatic Plant Surveys were carried out at 40 lakes; of those, 10 of the sites had no record of being surveyed previously. Twenty-three sites were new to us, 10 represented followup work at lakes we have inventoried over the past three years, and 8 sites were visited to specifically to check for small beggar-ticks (Bidens discoidea). These surveys resulted in documentation of 41 occurrences of PNDI-listed vascular plants of which 30 were new and 11 were updates. We also gained new understanding of the distribution and occurrence of several native and non-native species. Field reports have been submitted to the Pennsylvania Natural Heritage Program. Two hundred and eighty-seven herbarium specimens were collected and deposited in the herbarium of the Morris Arboretum of the University of Pennsylvania. We presented three programs on lake ecology and aquatic plant identification to foster an appreciation of the diversity and ecological importance of aquatic plants. We also met with lake residents at many of the lakes we surveyed. We conducted additional field surveys in Bucks, Carbon, Delaware, and Chester Counties resulting in 13 additional records of listed species. Five telephone and/or email consultations were held regarding PNDI reviews.

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2004-01-01
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Final Report for Grant Agreement # WRCF-19
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