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We compared forage digestion and passage rates among three groups of Nubian ibex (Capra ibex nubiana) — mature males, non-lactating females, and lactating females — to test hypotheses relating intraspecific digestive ability to body mass and reproduction costs. We hypothesized that large males (60 kg) would exhibit longer forage retention times and more(More)
Many wide-ranging mammal species have experienced significant declines over the last 200 years; restoring these species will require long-term, large-scale recovery efforts. We highlight 5 attributes of a recent range-wide vision-setting exercise for ecological recovery of the North American bison (Bison bison) that are broadly applicable to other species(More)
Foraging herbivores respond to the spatial pattern of resources at a variety of scales. At small scales of space and time, existing models capture the essence of the feeding process and successfully predict intake rates. Models that operate over larger scales have not exhibited a similar success, in part because we have a limited understanding of the rules(More)
A central challenge in ecology is to understand the interplay of internal and external controls on the growth of populations. We examined the effects of temporal variation in weather and spatial variation in vegetation on the strength of density dependence in populations of large herbivores. We fit three subsets of the model ln(Nt) = a + (1 + b) x(More)
Changes in contemporary climate are profoundly influencing most, if not all, aspects of ecology and human society (e.g., Randolph 2001; Brook 2008; McClean et al. 2008; Williamson et al. 2009). Recent shifts in species ranges and phenologies, and changes in hydrology, fire regimes, and the distribution of pests and pathogens are just a few of the now(More)
Models that seek to guide decisions on policy in rangelands must address the close links between ecological, economic, and social processes, and the adaptation of participants through time. We used an agent-based modeling approach to implement a parsimonious conceptual model of rangelands that includes biophysical processes central to the functioning of(More)
The lateral vertical thoracic excision has been a useful adjunct to more traditional techniques. As more patients undergo massive weight loss, more patients will present to plastic surgeons with complaints of fullness and excess in areas of the body not addressed by more traditional techniques. The lateral vertical thoracic excision can offer a solution to(More)
Variation in the abundance of animals has traditionally been explained as the outcome of endogenous forcing from density dependence and exogenous forcing arising from variation in weather and predation. Emerging evidence suggests that the effects of density dependence interact with external influences on population dynamics. In particular, spatial(More)
.......................................................................................................................................... 3 Introduction..................................................................................................................................... 3(More)
BACKGROUND SERI Surgical Scaffold is a long-term bioresorbable silk-derived biological scaffold developed to provide soft-tissue support and repair. METHODS SURE-001 (ClinicalTrials.gov identification no. NCT01256502) is a prospective, single-arm study in the United States of patients undergoing two-stage, implant-based breast reconstruction using SERI.(More)