Search Results - "Harmsen, Bart J."

Spatially explicit capture recapture density estimates: Robustness, accuracy and precision in a long-term study of jaguars (Panthera onca) by Harmsen, Bart J, Foster, Rebecca J, Quigley, Howard

“…Camera trapping is the standard field method of monitoring cryptic, low-density mammal populations. Typically, researchers run camera surveys for 60 to 90 days…”
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Dietary similarity among jaguars (Panthera onca) in a high-density population by Foster, Rebecca J, Harmsen, Bart J

“…Prey remains found in carnivore scats provide generalised dietary profiles of sampled populations. The profile may be biased if individual diets differ and…”
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Long-term monitoring of margays (Leopardus wiedii): Implications for understanding low detection rates by Harmsen, Bart J, Saville, Nicola, Foster, Rebecca J

“…Population assessments of wide-ranging, cryptic, terrestrial mammals rely on camera trap surveys. While camera trapping is a powerful method of detecting…”
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Differential Use of Trails by Forest Mammals and the Implications for Camera-Trap Studies: A Case Study from Belize by Harmsen, Bart J., Foster, Rebecca J., Silver, Scott, Ostro, Linde, Doncaster, C. Patrick

“…Relative abundance indices are often used to compare species abundance between sites. The indices assume that species have similar detection probabilities, or…”
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Long term monitoring of jaguars in the Cockscomb Basin Wildlife Sanctuary, Belize; Implications for camera trap studies of carnivores by Harmsen, Bart J, Foster, Rebecca J, Sanchez, Emma, Gutierrez-González, Carmina E, Silver, Scott C, Ostro, Linde E T, Kelly, Marcella J, Kay, Elma, Quigley, Howard

“…In this study, we estimate life history parameters and abundance for a protected jaguar population using camera-trap data from a 14-year monitoring program…”
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Ticks and rickettsiae from wildlife in Belize, Central America by Lopes, Marcos G, May Junior, Joares, Foster, Rebecca J, Harmsen, Bart J, Sanchez, Emma, Martins, Thiago F, Quigley, Howard, Marcili, Arlei, Labruna, Marcelo B

“…The agents of spotted fevers in Latin America are Rickettsia rickettsii, R. parkeri, Rickettsia sp. strain Atlantic rainforest, and R. massiliae. In…”
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Using Continuous‐Time Spatial Capture–Recapture models to make inference about animal activity patterns by Distiller, Greg B., Borchers, David L., Foster, Rebecca J., Harmsen, Bart J.

“…Quantifying the distribution of daily activity is an important component of behavioral ecology. Historically, it has been difficult to obtain data on activity…”
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Spatial and Temporal Interactions of Sympatric Jaguars (Panthera onca) and Pumas (Puma concolor) in a Neotropical Forest by Harmsen, Bart J., Foster, Rebecca J., Silver, Scott C., Ostro, Linde E. T., Doncaster, C. Patrick

“…We used extensive camera-trap surveys to study interindividual interactions among individually recognizable jaguars (Panthera onca) and plain-colored pumas…”
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Sex‐specific population dynamics of ocelots in Belize using open population spatial capture–recapture by Satter, Christopher B., Augustine, Ben C., Harmsen, Bart J., Foster, Rebecca J., Kelly, Marcella J.

“…We used open population, spatial capture–recapture (SCR) models to estimate sex‐specific density, survival, per capita recruitment, and population growth rate…”
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A critique of density estimation from camera-trap data by Foster, Rebecca J., Harmsen, Bart J.

“…Densities of elusive terrestrial mammals are commonly estimated from camera-trap data. Typically, this is a 2-step process involving 1) fitting conventional…”
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Heterogeneous capture rates in low density populations and consequences for capture-recapture analysis of camera-trap data by Harmsen, Bart J, Foster, Rebecca J, Doncaster, C. Patrick

“…Closed population capture-recapture analysis of camera-trap data has become the conventional method for estimating the abundance of individually recognisable…”
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Open population maximum likelihood spatial capture‐recapture by Glennie, Richard, Borchers, David L., Murchie, Matthew, Harmsen, Bart J., Foster, Rebecca J.

“…Open population capture‐recapture models are widely used to estimate population demographics and abundance over time. Bayesian methods exist to incorporate…”
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Ecological correlates of the spatial co‐occurrence of sympatric mammalian carnivores worldwide by Davis, Courtney L., Rich, Lindsey N., Farris, Zach J., Kelly, Marcella J., Di Bitetti, Mario S., Blanco, Yamil Di, Albanesi, Sebastian, Farhadinia, Mohammad S., Gholikhani, Navid, Hamel, Sandra, Harmsen, Bart J., Wultsch, Claudia, Kane, Mamadou D., Martins, Quinton, Murphy, Asia J., Steenweg, Robin, Sunarto, Sunarto, Taktehrani, Atieh, Thapa, Kanchan, Tucker, Jody M., Whittington, Jesse, Widodo, Febri A., Yoccoz, Nigel G., Miller, David A.W., Davies, Jonathan

“…The composition of local mammalian carnivore communities has far‐reaching effects on terrestrial ecosystems worldwide. To better understand how carnivore…”
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Assessing global patterns in mammalian carnivore occupancy and richness by integrating local camera trap surveys by Rich, Lindsey N., Davis, Courtney L., Farris, Zach J., Miller, David A. W., Tucker, Jody M., Hamel, Sandra, Farhadinia, Mohammad S., Steenweg, Robin, Di Bitetti, Mario S., Thapa, Kanchan, Kane, Mamadou D., Sunarto, S., Robinson, Nathaniel P., Paviolo, Agustín, Cruz, Paula, Martins, Quinton, Gholikhani, Navid, Taktehrani, Ateih, Whittington, Jesse, Widodo, Febri A., Yoccoz, Nigel G., Wultsch, Claudia, Harmsen, Bart J., Kelly, Marcella J.

“…Aim: Biodiversity loss is a major driver of ecosystem change, yet the ecological data required to detect and mitigate losses are often lacking. Recently,…”
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The functional role of scent marking in the social organization of large sympatric neotropical felids by Wooldridge, Rebecca L., Foster, Rebecca J., Harmsen, Bart J.

“…Communication is an integral part of animal behavior, impacting population structure and individual fitness and regulating spatial distributions. Scent marking…”
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Habitat Use by Sympatric Jaguars and Pumas Across a Gradient of Human Disturbance in Belize by Foster, Rebecca J., Harmsen, Bart J., Doncaster, C. Patrick

“…Jaguars (Panthera onca) and pumas (Puma concolor) are sympatric across the entire jaguar range, where they coexist in increasingly fragmented landscapes under…”
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Long-Term Monitoring of Ocelot Densities in Belize by SATTER, CHRISTOPHER B., AUGUSTINE, BEN C., HARMSEN, BART J., FOSTER, REBECCA J., SANCHEZ, EMMA E., WULTSCH, CLAUDIA, DAVIS, MIRANDA L., KELLY, MARCELLA J.

“…Ocelots (Leopardus pardalis) are listed as least concern on the International Union for Conservation of Nature (IUCN) Red list of Threatened Species, yet we…”
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Activity patterns of tayra (Eira barbara) across their distribution by Villafañe-Trujillo, Álvaro José, Kolowski, Joseph M., Cove, Michael V., Medici, Emilia Patricia, Harmsen, Bart J., Foster, Rebbeca J., Hidalgo-Mihart, Mircea G., Espinosa, Santiago, Ríos-Alvear, Gorky, Reyes-Puig, Carolina, Reyes-Puig, Juan Pablo, Da Silva, Marina Xavier, Paviolo, Agustín, Cruz, Paula, López-González, Carlos Alberto

“…Species' activity patterns are driven by the need to meet basic requirements of food, social interactions, movement, and rest, but often are influenced by a…”
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Ecology of a versatile canid in the Neotropics: gray foxes (Urocyon cinereoargenteus) in Belize, Central America by Harmsen, Bart J., Sanchez, Emma, Figueroa, Omar A., Gutierrez, Said M., Doncaster, C. Patrick, Foster, Rebecca J.

“…Gray foxes are successful habitat generalists within the temperate zone of their geographic range, exploiting a wide variety of habitats, including…”
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Consequences Matter: Compassion in Conservation Means Caring for Individuals, Populations and Species by Johnson, Paul J, Adams, Vanessa M, Armstrong, Doug P, Baker, Sandra E, Biggs, Duan, Boitani, Luigi, Cotterill, Alayne, Dale, Emma, O'Donnell, Holly, Douglas, David J T, Droge, Egil, Ewen, John G, Feber, Ruth E, Genovesi, Piero, Hambler, Clive, Harmsen, Bart J, Harrington, Lauren A, Hinks, Amy, Hughes, Joelene, Katsis, Lydia, Loveridge, Andrew, Moehrenschlager, Axel, O'Kane, Christopher, Pierre, Meshach, Redpath, Steve, Sibanda, Lovemore, Soorae, Pritpal, Stanley Price, Mark, Tyrrell, Peter, Zimmermann, Alexandra, Dickman, Amy

“…Human activity affecting the welfare of wild vertebrates, widely accepted to be sentient, and therefore deserving of moral concern, is widespread. A variety of…”
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