, but this code // executes before the first paint, when

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is not yet present. The // classes are added to so styling immediately reflects the current // toolbar state. The classes are removed after the toolbar completes // initialization. const classesToAdd = ['toolbar-loading', 'toolbar-anti-flicker']; if (toolbarState) { const { orientation, hasActiveTab, isFixed, activeTray, activeTabId, isOriented, userButtonMinWidth } = toolbarState; classesToAdd.push( orientation ? `toolbar-` + orientation + `` : 'toolbar-horizontal', ); if (hasActiveTab !== false) { classesToAdd.push('toolbar-tray-open'); } if (isFixed) { classesToAdd.push('toolbar-fixed'); } if (isOriented) { classesToAdd.push('toolbar-oriented'); } if (activeTray) { // These styles are added so the active tab/tray styles are present // immediately instead of "flickering" on as the toolbar initializes. In // instances where a tray is lazy loaded, these styles facilitate the // lazy loaded tray appearing gracefully and without reflow. const styleContent = ` .toolbar-loading #` + activeTabId + ` { background-image: linear-gradient(rgba(255, 255, 255, 0.25) 20%, transparent 200%); } .toolbar-loading #` + activeTabId + `-tray { display: block; box-shadow: -1px 0 5px 2px rgb(0 0 0 / 33%); border-right: 1px solid #aaa; background-color: #f5f5f5; z-index: 0; } .toolbar-loading.toolbar-vertical.toolbar-tray-open #` + activeTabId + `-tray { width: 15rem; height: 100vh; } .toolbar-loading.toolbar-horizontal :not(#` + activeTray + `) > .toolbar-lining {opacity: 0}`; const style = document.createElement('style'); style.textContent = styleContent; style.setAttribute('data-toolbar-anti-flicker-loading', true); document.querySelector('head').appendChild(style); if (userButtonMinWidth) { const userButtonStyle = document.createElement('style'); userButtonStyle.textContent = `#toolbar-item-user {min-width: ` + userButtonMinWidth +`px;}` document.querySelector('head').appendChild(userButtonStyle); } } } document.querySelector('html').classList.add(...classesToAdd); })(); Restoring Native Habitats in Urban Landscapes | 黄大仙高手论坛

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Restoring Native Habitats in Urban Landscapes

Kara Smit

In this project, the student will work in Calvin鈥檚 greenhouses, tree nursery, and at sites on and off campus investigating the re-introduction of native plants and native habitats into urban areas. Part of this work will involve collecting and processing data from an experimental prairie planting near the Prince Conference Center, assessing the best soil conditions for establishing native prairie plants. The student will also work with Dr. Warners in designing and installing an expansion of this experimental restoration planting. This student will also assist with restoration projects done off campus by Plaster Creek Stewards, with particular focus on developing sampling protocol to monitor the success of these projects over time.

Funded by

Jansma Family Research Fund and William and Celia Dornbush DeVries Family Fellowship

Departments

Biology

Serious about science and faith?

You鈥檒l fit right in here. As a Calvin biology major, you鈥檒l learn more than just facts, data, and theories. You鈥檒l gain the critical thinking skills behind great science and learn how to apply them to many fields.

All biology programs aren鈥檛 the same. At Calvin...

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