Search Results - "Ferguson, Jake M"

Estimating the diets of animals using stable isotopes and a comprehensive Bayesian mixing model by Hopkins, 3rd, John B, Ferguson, Jake M

“…Using stable isotope mixing models (SIMMs) as a tool to investigate the foraging ecology of animals is gaining popularity among researchers. As a result,…”
Get full text

Loss of animal seed dispersal increases extinction risk in a tropical tree species due to pervasive negative density dependence across life stages by Caughlin, T. Trevor, Ferguson, Jake M., Lichstein, Jeremy W., Zuidema, Pieter A., Bunyavejchewin, Sarayudh, Levey, Douglas J.

“…Overhunting in tropical forests reduces populations of vertebrate seed dispersers. If reduced seed dispersal has a negative impact on tree population…”
Get full text

Hidden variable models reveal the effects of infection from changes in host survival by Ferguson, Jake M, González-González, Andrea, Kaiser, Johnathan A, Winzer, Sara M, Anast, Justin M, Ridenhour, Ben, Miura, Tanya A, Parent, Christine E

“…The impacts of disease on host vital rates can be demonstrated using longitudinal studies, but these studies can be expensive and logistically challenging. We…”
Get full text

Measuring the impact of corn on mammalian omnivores by Hopkins, John B., Ferguson, Jake M., Frederick, Cheryl, Jerina, Klemen

“…In human-dominated landscapes throughout the world, wildlife seek out anthropogenic foods because they are high in nutritional value and are consistently…”
Get full text

The importance of long-distance seed dispersal for the demography and distribution of a canopy tree species by Caughlin, T. Trevor, Ferguson, Jake M, Lichstein, Jeremy W, Bunyavejchewin, Sarayudh, Levey, Douglas J

“…Long-distance seed dispersal (LDD) is considered a crucial determinant of tree distributions, but its effects depend on demographic processes that enable seeds…”
Get full text

Selecting the best stable isotope mixing model to estimate grizzly bear diets in the Greater Yellowstone Ecosystem by Hopkins, 3rd, John B, Ferguson, Jake M, Tyers, Daniel B, Kurle, Carolyn M

“…Past research indicates that whitebark pine seeds are a critical food source for Threatened grizzly bears (Ursus arctos) in the Greater Yellowstone Ecosystem…”
Get full text

The changing anthropogenic diets of American black bears over the past century in Yosemite National Park by Hopkins, John B, Koch, Paul L, Ferguson, Jake M, Kalinowski, Steven T

“…We used carbon (δ 13 C) and nitrogen (δ 15 N) stable isotopes derived from the tissues of American black bears ( Ursus americanus ) to estimate the proportion…”
Get full text

Evidence and implications of higher-order scaling in the environmental variation of animal population growth by Ferguson, Jake M., Ponciano, José M.

“…Significance We show that the variation of plant and animal populations through time can provide basic insights into how populations interact with their…”
Get full text

A comparison of survey method efficiencies for estimating densities of zebra mussels ( Dreissena polymorpha ) by Ferguson, Jake M, Jiménez, Laura, Keyes, Aislyn A, Hilding, Austen, McCartney, Michael A, St Clair, Katherine, Johnson, Douglas H, Fieberg, John R

“…Abundance surveys are commonly used to estimate plant or animal densities and frequently require estimating detection probabilities to account for imperfect…”
Get full text

Predicting the process of extinction in experimental microcosms and accounting for interspecific interactions in single-species time series by Ferguson, Jake M., Ponciano, José M.

“…Predicting population extinction risk is a fundamental application of ecological theory to the practice of conservation biology. Here, we compared the…”
Get full text

Animal-borne imaging reveals novel insights into the foraging behaviors and Diel activity of a large-bodied apex predator, the American alligator (Alligator mississippiensis) by Nifong, James C, Nifong, Rachel L, Silliman, Brian R, Lowers, Russell H, Guillette, Jr, Louis J, Ferguson, Jake M, Welsh, Matthew, Abernathy, Kyler, Marshall, Greg

“…Large-bodied, top- and apex predators (e.g., crocodilians, sharks, wolves, killer whales) can exert strong top-down effects within ecological communities…”
Get full text

Stable isotopes to detect food-conditioned bears and to evaluate human-bear management by Hopkins III, John B., Koch, Paul L., Schwartz, Charles C., Ferguson, Jake M., Greenleaf, Schuyler S., Kalinowski, Steven T.

“…We used genetic and stable isotope analysis of hair from free-ranging black bears (Ursus americanus) in Yosemite National Park, California, USA to: 1) identify…”
Get full text

Optimal sampling strategies for detecting zoonotic disease epidemics by Ferguson, Jake M, Langebrake, Jessica B, Cannataro, Vincent L, Garcia, Andres J, Hamman, Elizabeth A, Martcheva, Maia, Osenberg, Craig W

“…The early detection of disease epidemics reduces the chance of successful introductions into new locales, minimizes the number of infections, and reduces the…”
Get full text

A framework for modeling the impacts of adaptive search intensity on the efficiency of abundance surveys by Jiménez, Laura, Fieberg, John R., McCartney, Michael, Ferguson, Jake M.

“…When planning abundance surveys, the impact of search intensity on the quality of the density estimates is rarely considered. We constructed a time‐budget…”
Get full text

Correction: Estimating the Diets of Animals Using Stable Isotopes and a Comprehensive Bayesian Mixing Model by Hopkins, John B., Ferguson, Jake M.

“…The corrections are: "Isotope values (e.g., δX, δY) are expressed in delta (δ) notation as per mil (‰) units (or parts per thousand):" and "This system of…”
Get full text

Reintroduced wolves and hunting limit the abundance of a subordinate apex predator in a multi-use landscape by Elbroch, L Mark, Ferguson, Jake M, Quigley, Howard, Craighead, Derek, Thompson, Daniel J, Wittmer, Heiko U

“…Top-down effects of apex predators are modulated by human impacts on community composition and species abundances. Consequently, research supporting top-down…”
Get full text

Inference from the stationary distribution of allele frequencies in a family of Wright–Fisher models with two levels of genetic variability by Ferguson, Jake M., Buzbas, Erkan Ozge

“…The distribution of allele frequencies obtained from diffusion approximations to Wright–Fisher models is useful in developing intuition about the population…”
Get full text

Ecological forecasts reveal limitations of common model selection methods: predicting changes in beaver colony densities by Johnson-Bice, Sean M., Ferguson, Jake M., Erb, John D., Gable, Thomas D., Windels, Steve K.

“…Over the past two decades, there have been numerous calls to make ecology a more predictive science through direct empirical assessments of ecological models…”
Get full text

A two‐stage experimental design for dilution assays by Ferguson, Jake M., Miura, Tanya A., Miller, Craig R.

“…Dilution assays to determine solute concentration have found wide use in biomedical research. Many dilution assays return imprecise concentration estimates…”
Get full text

Computational Reproducibility in The Wildlife Society’s Flagship Journals by ARCHMILLER, ALTHEA A., JOHNSON, ANDREW D., NOLAN, JANE, EDWARDS, MARGARET, ELLIOTT, LISA H., FERGUSON, JAKE M., IANNARILLI, FABIOLA, VÉLEZ, JULIANA, VITENSE, KELSEY, JOHNSON, DOUGLAS H., FIEBERG, JOHN

“…Scientific progress depends upon the accumulation of empirical knowledge via reproducible methodology. Although reproducibility is a main tenet of the…”
Get full text