Spring Evening, Evanston Illinois, 27 April 2013

Vinca major (Periwinkle) - in several front yards

Scilla sp. (Squill) in several yards, also on openspace near CTA station on Main etc 

Close up of Squill

Pachysandra - gardens around Evanston (thanks Kim Frye for reminding me of the name)

TREE ARCHITECTURE

This is a great time of year to start looking at tree architecture.  Even if you have not perfected your winter tree ID skills, take note of the branching pattern of trees and as they leaf out in the coming weeks put a name on them!  Want to learn more about tree architecture (see here)

Ulmus americana (American Elm) (not the typical architectural expression for this tree).

 Gymnocladus dioicus (Kentucky Coffee Tree).  Note the seed pods from last year. 

Catalpa speciosa, Northern Catalpa.  Very distinctive architecture.

BUD BURST

Good time also to watch bud burst.  The maples are very busy this weekend.

Acer platanoides Norway Maple.  Notice opposite buds.  As the trees grow this arrangement of the buds continues to be expressed in the shoots, branches, limbs etc.

WORMWATCH!

Oh yep, worms... all non-native worms in Chicago.

Lesson learned from Chicago Wilderness – Implementing and sustaining Resiliency-Oriented Management (ROM)

by Liam Heneghan

1. Introduction

Chicago is the largest city in the US Midwest, and the third largest in the country, with a metropolitan population of 2.7 million people . The greater Metropolitan Statistical Area (MSA) to which Chicago belongs has a population of 9,461,105. The density within the city is 20 519/km2, which is more than fifty times denser than the state of Illinois as a whole. The radical and rapid transformation of the landscape that has occurred over the past century and a half in order to accommodate this burgeoning population might suggest that Chicago is not an especially promising place to undertake a large scale conservation effort. However, the region supports conservation effects that are recognized as significant at the local, national and international scale. That significant biodiversity protection occurs in Chicago is a consequence of the region’s climate and its evolutionary and ecological history, as well as being deriving from decisions instituted by the human population, both before and after settlement of the region by European and other non-indigenous populations (hereafter referred to as “settlement”), that resulted in either setting land aside from development or maintained the characteristic biodiversity of the area.

In this chapter we summarize the factors that shaped the biodiversity of Chicago and its hinterland and point out the conservation significance of these ecological systems, addressing why conservation effects directed at Chicago’s biodiversity has importance locally and beyond. Our main focus in the chapter is the work of Chicago Wilderness, a regional biodiversity alliance commitment to protecting nature and enriching the lives of the residents of the area. Chicago Wilderness has for over a decade served to coordinate the efforts of a diverse group of institutions included federal, state, and local agencies; public land management agencies, conservation organizations; and scientific and cultural institutions. We describe the history and structure of the alliance and describe the four key initiatives of Chicago Wilderness, namely, 1. Restore the health of local nature, 2. Green infrastructure, 3. Combating climate change, and 4. The Leave No Child Inside program. Although Chicago Wilderness has received much positive attention over the past decade and its work has been recognized by planners, academics, and editorialists, and by the agencies that make up the alliance, the efforts have not been without controversy. We give examples of the controversies and indicate how the alliance has learned from them.