Island Plant Inventories: Data Archive

Sedum hispanicum on Roberts Island
Sedum hispanicum | Glen Mittelhauser

Map of Island Plant Data Collected by MNHO

These data are the result of fieldwork conducted by Glen Mittelhauser over the last 30 years.

Click pins on the map to view island name and link to download data.


ISLANDCoastal Island Registry Number (CIRN)LINK
Brimstone Island63-176View Data
Double Headshot Islands79-351 & 79-352View Data
Egg Rock59-301View Data
Gooseberry Island59-398View Data
Halifax Island79-570View Data
Little Brimstone Island63-179View Data
Little Libby Island79-360View Data
Mahoney Island59-933View Data
Spectacle Island79-132View Data
The Brothers63-579 & 63-581View Data
Two Bush Island63-653View Data

Permissions and Data Use

These data are made publicly available to encourage transparency, long-term preservation, and reuse in ecological research, conservation planning, and education. These inventories represent baseline conditions at the time of survey and should be interpreted with appropriate consideration of survey year, methods, and observer effort. Users are welcome to download, analyze, and incorporate these data into derivative works, including independent analyses and publications. Any use of these data must acknowledge the original source by citing the website where the data are archived and giving credit for the historical data to Glen Mittelhauser, Maine Natural History Observatory. Users are encouraged, though not required, to notify Maine Natural History Observatory of substantial or interpretive uses of the dataset, particularly those leading to publication.


Project Coordinator

Glen Mittelhauser


Project Collaborators

US fish and wildlife service
Maine Coastal Islands National Wildlife Refuge


Project Supporters


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