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Changes to the Massachusetts List of Endangered (E), Threatened (T) & Special Concern (SC) Species

February 27, 2012

The status of rare and vulnerable species in Massachusetts is dynamic and may change due to many factors such as: our knowledge about their status in the state; changes in biological populations; and our understanding of their habitat requirements. Thus, the status of species on the Massachusetts List of Endangered, Threatened and Special Concern Species is reviewed periodically and some changes may therefore be recommended. Listing species in Massachusetts is based on three primary factors: species rarity, population trends, and threats to the species in Massachusetts. Details about the listing criteria process can be found in "Listing Endangered Species in Massachusetts: The Basis, Criteria and Procedure for Listing Endangered, Threatened and Special Concern Species".

The following changes to the MESA list were published February 27, 2012.

Summary Table of Changes to the MESA List

Part 1: Species Changes to the MESA List - Deletions
Species Changes to the MESA List - Additions

Part 2: Listing Status Changes for Species Currently on the MESA List

Part 1:

Species Changes to the MESA List - Deletions

Scientific Name	Common Name	Previous MESA Status	Current MESA Status
Alasmidonta undulata	Triangle Floater	SC	-
Bagisara rectifascia	Straight Lined Mallow Moth	SC	-
Stylurus scudderi	Zebra Clubtail	SC	-
Stylurus spiniceps	Arrow Clubtail	T	-
Enallagma laterale	New England Bluet	SC	-
Acer nigrum	Black Maple	SC	-
Amelanchier nantucketensis	Nantucket Shadbush	SC	-
Bolboschoenus fluviatilis	River bulrush	SC	-
Corema conradii	Broom Crowberry	SC	-
Podostemum ceratophyllum	Threadfoot	SC	-
Sagittaria subulata	River Arrowhead	E	-

Species Changes to the MESA List - Additions

Scientific Name	Common Name	Previous MESA Status	Current MESA Status
Caprimulgus vociferus	Eastern Whip-poor-will	-	SC
Myotis lucifugus	Little Brown Bat	-	E
Perimyotis subflavus	Tricolored Bat (Eastern Pipistrel)	-	E
Myotis septentrionalis	Northern Long-eared Bat	-	E
Heterocampa varia	Sandplain Heterocampa	-	T
Carex oligocarpa	Rich Woods Sedge	-	T
Celastrus scandens	American Bittersweet	-	T
Huperzia appressa	Appalachian Fir-moss	-	E

Part 2:

Status Changes for Species Currently on the MESA List

Scientific Name	Common Name	Current MESA Status	Proposed MESA Status
Downlistings
Haliaeetus leucocephalus	Bald Eagle	E	T
Pyrrhia aurantiago	Orange Sallow Moth	T	SC
Gomphus abbreviatus	Spine-crowned Clubtail	E	SC
Williamsonia lintneri	Ringed Boghaunter	E	T
Boechera laevigata	Smooth Rock-cress	T	SC
Carex trichocarpa	Hairy-fruited Sedge	T	SC
Symphyotrichum prenanthoides	Crooked-stem Aster	T	SC
Uplistings
Myotis leibii	Small-footed Bat	SC	E
Enallagma daeckii	Attenuated Bluet	SC	T
Aeshna subarctica	Subartic Darner	T	E
Gomphus quadricolor	Rapids Clubtail	T	E
Gomphus ventricosus	Skillet Clubtail	SC	T
Somatochlora forcipata	Forcipate Emerald	SC	E
Somatochlora incurvata	Incurvate Emerald	T	E
Cypripedium reginae	Showy Lady's-slipper	SC	E