A5057439761- Plant and animal studies
- Ecology and Vegetation Dynamics Studies
- Rangeland and Wildlife Management
- Plant Parasitism and Resistance
- Herbal Medicine Research Studies
- Insect and Pesticide Research
- Plant Pathogens and Resistance
- Plant Pathogens and Fungal Diseases
- Animal and Plant Science Education
- Animal Ecology and Behavior Studies
- Species Distribution and Climate Change
- Evolutionary Psychology and Human Behavior
- Powdery Mildew Fungal Diseases
- Plant and fungal interactions
- Fire effects on ecosystems
Chicago Botanic Garden
2020-2024
Center for Plant Conservation
2020-2024
Abstract Juvenile survival is critical to population persistence and evolutionary change. However, the of juvenile plants from emergence reproductive maturity rarely quantified. This especially true for long‐lived perennials with extended pre‐reproductive periods. Furthermore, studies have replication necessary account variation among populations cohorts. We estimated its relationship size, density conspecifics, distance maternal plant, age, year, cohort Echinacea angustifolia , a herbaceous...
Fire is an important determinant of habitat structure and biodiversity across ecosystems worldwide. In fire-dependent communities, similar to the North American prairie, fire suppression contributes local plant extinctions. Yet demographic mechanisms responsible for species loss have not been directly investigated. We conducted a 21-y longitudinal study 778 individual plants Echinacea angustifolia, widespread perennial with chronically limited mating opportunities, explore how affects...
AbstractAn individual's access to mates (i.e., its "mating potential") can constrain reproduction but may also influence fitness through effects on offspring survival. For instance, mate proximity correspond with relatedness and lead inbreeding depression in offspring. While production survival might respond differently mating potential, previous studies have not considered the simultaneous of potential these components. We investigated relationship both populations a long-lived herbaceous perennial,
Abstract Community science programs enable the collection of large amounts important data and enhance appreciation among members public. However, there are challenges in establishment successful community programs. We report associated with recent a program to monitor rare plants geographically diverse southern Illinois, USA region. Over first 3 years, our has been over 250 monitoring records for species through recruitment group passionate volunteers. volunteers predominantly middle‐income,...
Habitat fragmentation produces small, spatially isolated populations that promote inbreeding. Remnant often contain inbred and outbred individuals, but it is unclear how inbreeding relative to outbreeding affects the expression of functional traits biotic interactions such as herbivory. We measured a suite 12 herbivore damage on three genotypic cross types in prairie forb, Echinacea angustifolia: inbred, crosses resulting from matings within between remnant populations. Inbreeding...
Abstract Species that persist in small populations isolated by habitat destruction may experience reproductive failure. Self‐incompatible plants face dual threats of mate‐limitation and competition with co‐flowering for pollination services. Such lower pollinator visitation, increase heterospecific pollen transfer reduce the likelihood a visit results successful pollination. To understand how isolation from mates species contribute to failure fragmented habitat, we conducted an observational...
The timing and synchrony of mating activity in a population may vary both within among years. With the exception masting species, which reproductive fluctuates dramatically years, is typically studied However, opportunities to mate also years nonmasting iteroparous species. We demonstrate that studying only within-year flowering fails accurately quantify variation opportunity an experimental (n=286) Echinacea angustifolia. quantified individuals' partitioned contribution each measure mean...
Abstract Rare species serve important ecosystem functions, including community resilience to global change. Yet rare are disappearing globally because of anthropogenic activities such as fire suppression. Prescribed burning is a widespread management approach that can reduce invasive plant presence, recycle nutrients, and restore diversity. However, the effects prescribed on plants not well understood. We analyzed population dynamics 67 rare, native in response using Chicago botanic garden's...
First emerging at the end of 20th century, community science (a.k.a. citizen science), utilizing volunteers and volunteer-contributed data, has become a major component biological conservation worldwide. Interacting factors including limited funding, technology availability, public interest present unique opportunity for scientists practitioners to benefit from larger datasets with broader spatial temporal reach than possible professional researchers alone. In tandem benefits science, gain...
Anthropogenically fragmented populations may have reduced fitness due to loss of genetic diversity and inbreeding. The extent such losses fragmentation potential gains from conservation actions are infrequently assessed together empirically. Controlled crosses within among can identify whether at risk inbreeding depression inter-population crossing alleviates loss. Because depends on the environment life stage, studies quantifying cumulative over a large portion lifecycle in conditions that...