Plant invasions alter settlement patterns of breeding grassland birds

Patterns of Area Sensitivity in Grassland-Nesting Birds

Between 1995 and 1997, we studied breeding birds in fragments of native tallgrass prairie in southwestern Missouri to determine the effect of habitat fragmentation on grassland bird populations. Data on density and nesting success collected in 13 prairie fragments of various sizes revealed three levels of area sensitivity. The most area-sensitive species, Greater Prairie-Chicken ( Tympanuchus c...

Comparative Patterns of Plant Invasions in the Mediterranean Biome

The objective of this work was to compare and contrast the patterns of alien plant invasions in the world's five mediterranean-climate regions (MCRs). We expected landscape age and disturbance history to have bearing on levels of invasion. We assembled a database on naturalized alien plant taxa occurring in natural and semi-natural terrestrial habitats of all five regions (specifically Spain, I...

Region-specific patterns and drivers of macroscale forest plant invasions

Department of Forestry and Natural Resources, Purdue University, West Lafayette, IN, USA, USDA Forest Service Southern Research Station, Knoxville, TN, USA, USDA Forest Service Northern Research Station, Morgantown, WV, USA, USDA Forest Service Southern Research Station, Asheville, NC, USA, Department of Forestry and Environmental Resources, North Carolina State University, Research Triangle Pa...

Captive Breeding of Birds

Resource competition in plant invasions: emerging patterns and research needs

Invasions by alien plants provide a unique opportunity to examine competitive interactions among plants. While resource competition has long been regarded as a major mechanism responsible for successful invasions, given a well-known capacity for many invaders to become dominant and reduce plant diversity in the invaded communities, few studies have measured resource competition directly or have...