Diario de jackpine22

I studied this marsh in the summer of 1975 with the collaboration of Cathy and Paul Keddy who were graduate students at Dalhousie University at the time. It lies across the road from the very popular Lawrencetown Beach; waters off the nearby headland are a popular surfing area. I created a Project for the larger marsh area: https://www.inaturalist.org/projects/east-lawrencetown-ns-brackish-marsh

The marsh borders a tidal, brackish lake. Proceeding from 'the road' towards open water, one crosses a sequence of what we described as 14 visually distinct zones. View extracts from a scientific paper posted on the web at http://versicolor.ca/LawrencetownBrackishMarsh/

I visited the marsh again on June 9, 2005; I am posting some plant photos from that visit on iNaturalist, partially to refresh my memory, as I will be accompanying participants in a Botany Field Class there shortly... close to 48 years after the 1975 survey. More to follow... hopefully.

July 15, 2023: Successful venture yesterday as a "Guest Prof." in the Dalhousie University summer field class Flora of Nova Scotia, instructors Sean Haughian & Nick Hill. New entries from the field class participants can be viewed on the Project Page, but the focus of the class was on collection of materials to prepare formal botanical specimens of flowering angiosperms, not on making posts on iNaturalist. The instructors were impressed with the site, I think, especially the diversity of sedges, and the very diverse 'buckbean meadow' at the beginning of the route from the road towards Lawrencetown Lake. Overall, the site seemed to have changed very little from 1975.

I conducted an "opportunistic"survey of exotic and invasive species (as well as recording what else is there) on Lawsons Brook, the stream draining Williams Lake on the Halifax south mainland on July 20, 2023. I returned on July 21 to sort out some observations in the initial sections, these days during breaks in an an incredible deluge of precipitation over a few weeks. So the photos show Lawsons Brook with a lot of water, unusual for mid-summer in years past.

It is a beautiful yellow birch-lined wet riparian corridor that has escaped recent fires (last 70+ years) . It has a history of industrial use in settler times.

There are 14 "sections" proceeding from Purcells Cove Road to Williams Lake: 00, 0-1, 1-2, 2-3, 3-4, 4-5, 5-6, 6-7, 7-9, 8-9, 9-10, 10-11, 11-12, 12-13. More details to follow. The Lat & Longs are prob +/- up to 10-20m, (Olympus Tough TG4 camera) re: forest canopy. I have Garmin GPS readings for section positions, 'will post those later, also some of the native species.

Invasive species uploaded to date are listed under the tag InvExoSurvey20Jy2023LawsonBk

Uploading ongoing (Jul28, 2023) - david p