Evolution of invasiveness through increased resource use in a vacant niche

…, F Alice Cang, BS Barker, K Andonian, SM Swope… - Nature plants, 2015 - nature.com
Non-native plants are now a pervasive feature of ecosystems across the globe 1. One hypothesis
for this pattern is that introduced species occupy open niches in recipient communities …

Population genomic analyses reveal a history of range expansion and trait evolution across the native and invaded range of yellow starthistle (Centaurea solstitialis)

BS Barker, K Andonian, SM Swope… - Molecular …, 2017 - Wiley Online Library
Identifying sources of genetic variation and reconstructing invasion routes for non‐native
introduced species is central to understanding the circumstances under which they may evolve …

Native and invading yellow starthistle (Centaurea solstitialis) microbiomes differ in composition and diversity of bacteria

…, JG Harenčár, H Sounart, SR Welles, SM Swope… - Msphere, 2019 - Am Soc Microbiol
Invasive species could benefit from being introduced to locations with more favorable species
interactions, including the loss of enemies, the gain of mutualists, or the simplification of …

Widespread seed limitation affects plant density but not population trajectory in the invasive plant Centaurea solstitialis

SM Swope, IM Parker - Oecologia, 2010 - Springer
In some plant populations, the availability of seeds strongly regulates recruitment. However,
a scarcity of germination microsites, granivory or density-dependent mortality can reduce the …

Complex interactions among biocontrol agents, pollinators, and an invasive weed: a structural equation modeling approach

SM Swope, IM Parker - Ecological Applications, 2012 - Wiley Online Library
… each attacked inflorescence (SM Swope, unpublished data). … by >95% per inflorescence
(SM Swope, unpublished data). In … villosus at our study sites (SM Swope, personal observation) …

Trait‐mediated interactions and lifetime fitness of the invasive plant Centaurea solstitialis

SM Swope, IM Parker - Ecology, 2010 - Wiley Online Library
Plants interact with numerous enemies and mutualists simultaneously and sequentially. Such
multispecies interactions can give rise to trait‐mediated indirect effects that are likely to be …

Variable effects of a generalist parasitoid on a biocontrol seed predator and its target weed

SM Swope, WH Satterthwaite - Ecological Applications, 2012 - Wiley Online Library
Biological control (the importation of enemies from an invader's native range) is often considered
our best chance of controlling the most widespread invaders. Ideally, the agent reduces …

Soil type mediates indirect interactions between Centaurea solstitialis and its biocontrol agents

SM Swope, IR Stein - Biological Invasions, 2012 - Springer
Many invasive plants are attacked by more than one biocontrol agent. Attack by multiple
enemies may give rise to indirect interactions, the nature of which may be influenced by the …

Spatiotemporal variation in the strength of density dependence: implications for biocontrol of Centaurea solstitialis

SM Swope, WH Satterthwaite, IM Parker - Biological Invasions, 2017 - Springer
Invasive plants often occupy large ranges in the introduced region and consequently, local
population dynamics vary in ways that affect the potential for biological control. We used …

Biocontrol attack increases pollen limitation under some circumstances in the invasive plant Centaurea solstitialis

SM Swope - Oecologia, 2014 - Springer
Herbivore damage often deters pollinator visitation and many invasive plants in North
America are pollinator-dependent. This has important implications for the biological control of …