A5035483367- Rangeland and Wildlife Management
- Fire effects on ecosystems
- Ecology and Vegetation Dynamics Studies
- Botany, Ecology, and Taxonomy Studies
- Plant and animal studies
- Plant Pathogens and Resistance
- Turfgrass Adaptation and Management
- Plant Parasitism and Resistance
- Archaeology and Natural History
- Weed Control and Herbicide Applications
- Landslides and related hazards
- Plant Water Relations and Carbon Dynamics
- Botany and Plant Ecology Studies
- Genetic diversity and population structure
- Plant Pathogens and Fungal Diseases
- Avian ecology and behavior
- Plant and Fungal Interactions Research
- Plant Stress Responses and Tolerance
- Seedling growth and survival studies
- Wildlife Ecology and Conservation
- Species Distribution and Climate Change
- Ecology and Conservation Studies
- Forest Insect Ecology and Management
The Nature Conservancy
2007-2025
The University of Texas at Austin
2025
The fundamental goal of a rare plant translocation is to create self-sustaining populations with the evolutionary resilience persist in long term. Yet, most syntheses focus on few factors influencing short-term benchmarks success (e.g., survival and reproduction). Short-term can be misleading when trying infer future growth viability because that promote establishment may differ from those required for long-term persistence. We assembled large (n = 275) broadly representative data set...
Abstract Conservation translocations are an established method for reducing the extinction risk of plant species through intentional movement within or outside indigenous range. Unsuitable environmental conditions at translocation recipient sites and a lack understanding species–environment relationships often identified as critical barriers to success. However, previous syntheses have drawn these inferences from analyses qualitative feedback rather than quantitative data. In this study, we...
Abstract Fire can shape plant communities when species respond differently to fire characteristics like season and intensity. If invasive plants are more vulnerable than native specific aspects of fire, managers could use prescribed fires control non‐native species. We conducted a meta‐analysis effects on six closely related Afro‐Eurasian Australian grasses ( Bothriochloa bladhii , B. ischaemum pertusa Dichanthium annulatum D. aristatum sericeum collectively ‘invasive bluestems’) that have...
Disturbance-dependent shrublands and the birds that nest in them are declining due to factors include fire suppression tree encroachment. Mechanical treatments often used decrease threat of wildfire sensitive areas, such as wildland-urban interface, could be for restoration. We evaluated use mechanical mastication (also called mulching or chipping) restore early-successional structure oak-dominated Texas, which provide nesting habitat endangered black-capped vireo (Vireo atricapilla...
Charlotte M. Reemts (corresponding author), The Nature Conservancy, 318 Congress Ave., Austin, TX 78701. creemts{at}tnc.org
We planted 308 star cacti (Astrophytum asterias) in southern Texas on private ranches where existing populations were reduced or destroyed. Overall mortality was 48% with herbivory accounting for 34% of the (50 148). Mortality varied among planting sites but not influenced by initial size, even when killed excluded. highest during times low precipitation high temperatures. Surviving two increased average size. Reintroduction through is a viable strategy restoring cacti.
Abstract Fire can shape both the structure and composition of vegetation communities, especially those dominated by species with different regeneration strategies. The dominant oak-juniper communities in central Texas include resprouters (oaks [ Quercus spp.]) a reseeder (Ashe juniper Juniperus ashei Buchholz]). We studied effects two overlapping wildfires (1996 2009) on woodlands Fort Hood Military Reservation, Texas, USA. estimated burn severity measured along permanent transects...
Abstract Woodlands dominated by Ashe juniper (Juniperus ashei) and oaks, including Texas red oak (Quercus buckleyi; synonyms: Quercus texana, shumardii var. texana), serve as breeding habitat for the endangered golden-cheeked warbler (Dendroica chrysoparia) in central Texas. Oak wilt, caused fungus Ceratocystis fagacearum, is considered a threat to quality this warbler. Basal girdling was tested controlling fungal mat production on reducing disease spread at stand level. For 2 years,...
<title>Abstract</title> Background In central Texas, re-sprouting oaks (<italic>Quercus</italic> spp.) co-occur with the non-resprouting Ashe juniper (<italic>Juniperus ashei</italic>). The region’s mature oak-juniper woodlands are only nesting habitat for endangered golden-cheeked warbler (<italic>Setophaga chrysoparia</italic>). We studied long-term recovery of woodland structure and species composition after single repeated crown fires on three site types (mesas slopes shallow soils...
Abstract Background In central Texas, re-sprouting oaks ( Quercus spp.) co-occur with non-resprouting Ashe juniper Juniperus ashei ) in a mosaic of fire-dependent (oak savanna) and fire-sensitive (oak-juniper woodland) habitats. The region’s mature woodlands are the only nesting habitat for endangered golden-cheeked warbler Setophaga chrysoparia ). We studied long-term recovery woodland structure species composition after single repeated crown fires on three soil types (mesa, slope, deep...
The spatial extent of semi-arid hot regions is forecasted to grow through the twenty-first century, complicating restoration and reforestation plans. In arid climates, seedlings are more susceptible transplant shock due lower soil moisture throughout year. Determining strategies reduce seedling stress improve survival post-planting will be paramount continued efforts in a changing climate. We quantified physiological, morphological, field performance (mortality growth) response for five...
Bothriochloa ischaemum (Old World Bluestem) is a problematic invasive grass throughout the southern United States. We measured long-term effects (12 years) of single growing-season fire (September 2006) in grassland dominated by Old Bluestem. Prescribed drastically reduced Bluestem cover (prefire: 76 ± 4% [mean standard error], 2007: 8 2%) and remained low (21 6%) 2018 with no additional management. Surprisingly, unburned plots decreased 12% during same time. After burn, native graminoid...
Native species of juniper are encroaching on grasslands throughout the Great Plains. Prescribed fire is often used to treat or prevent early stages encroachment, but little information available about contribution small junipers overall fuel loads. I sampled 33 individuals Ashe (Juniperus ashei) from Fort Hood Military Reservation, Texas. The relationship between size and above-ground biomass differed for larger trees. focused most my analyses trees (<15 cm in basal diameter), which likely...
The Sprague's pipit (Anthus spragueii) is a passerine of North American prairies, breeding in the northern United States and southern Canada, overwintering grasslands deserts Mexico. In recent decades, populations have declined both wintering ranges because degradation loss native prairie. Previous research on this species has focused primarily its habitat provided limited information habitat. To help fill these data gaps, we assessed density along Texas Gulf Coast Plain, as well...
The recently delisted black-capped vireo (Vireo atricapilla, hereafter “vireo”) nests in shrublands from south-central Oklahoma to southwestern Tamaulipas, Mexico. Vireos are considered be “conservation-reliant” because they require on-going habitat maintenance and control of brown-headed cowbirds (Molothrus aster, “cowbird”). Most long-term research has been conducted comparatively mesic parts the range, but more arid comprise larger proportion their distribution. Our study area is a Nature...
Protection and management of tallgrass prairie remnants are critical to the continued existence this rare ecosystem. While effects individual events (especially fire grazing) understood relatively well, their combined, long-term more difficult predict. We examined how a large (283 ha) remnant in Texas responded changes management. Previously, site had been hayed annually for ∼100 y. In 1987, changed prescribed multiple seasons (average return interval 3.5 y) occasional grazing haying. From...