Katie May Laumann

1 Introduction Understanding the drivers of species composition at the local scale has long been a central focus in ecology (MacArthur and Levins 1967; Ricklefs 1987). Historically, species found in local assemblages have been viewed as subsets of the regional species pool that (i) can find environmental and habitat conditions suitable and (ii) can co-exist on the finite set of ecological resources available, filling sufficiently different niches to avoid competitive exclusion (Weiher et al.

2021 Maryland Coastal Adaptation Report Card For the last decade, the State of Maryland has invested in and made progress toward adaptation. Through increased funding, planning, regulatory changes, and restoration, Maryland has become a leader in coastal and climate adaptation. However, there is a need to clarify adaptation goals in order to measure progress and hold the state accountable.