WETFEET: Mangrove growth responses to warming across a latitudinal gradient.csv

In the southeastern US, Avicennia germinans (black mangrove) is encroaching poleward due to warming temperatures and a decrease in annual freee events. To understand how warming will continue to impact mangrove encroachment, we deployed open-top passive warming chambers at three sites along the northeast coast of Florida encompassed by the Guana Tolomato Matanzas National Estuarine Research Reserve. Mangrove height and canopy widths were measured in each of the 36 plots (3 sites x 2 treatments x 6 replicates) at the outset of the experiment in May 2018 and then again in November 2018 (6 months) and in May 2019 (1 year). Plant height was measured to the tallest branch. Canopy width was measured at the widest dimension and then again at the dimension perpendicular from the first measurement. <br>In each plot, two PVC rings were placed over existing salt marsh vegetation. In August 2018, we measured the height and number of stems (stem density) of each species present in the biomass rings. All biomass was then cut at the base for allometric measurements in the lab. This process was repeated in August 2019.