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Hardy BM, Muths E, Funk WC, Bailey LL. Quantifying intraspecific variation in host resistance and tolerance to a lethal pathogen. J Anim Ecol 2024. [PMID: 38773788 DOI: 10.1111/1365-2656.14106] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2024] [Accepted: 03/14/2024] [Indexed: 05/24/2024]
Abstract
Testing for intraspecific variation for host tolerance or resistance in wild populations is important for informing conservation decisions about captive breeding, translocation, and disease treatment. Here, we test the importance of tolerance and resistance in multiple populations of boreal toads (Anaxyrus boreas boreas) against Batrachochytrium dendrobatidis (Bd), the amphibian fungal pathogen responsible for the greatest host biodiversity loss due to disease. Boreal toads have severely declined in Colorado (CO) due to Bd, but toad populations challenged with Bd in western Wyoming (WY) appear to be less affected. We used a common garden infection experiment to expose post-metamorphic toads sourced from four populations (2 in CO and 2 in WY) to Bd and monitored changes in mass, pathogen burden and survival for 8 weeks. We used a multi-state modelling approach to estimate weekly survival and transition probabilities between infected and cleared states, reflecting a dynamic infection process that traditional approaches fail to capture. We found that WY boreal toads are more tolerant to Bd infection with higher survival probabilities than those in CO when infected with identical pathogen burdens. WY toads also appeared more resistant to Bd with a higher probability of infection clearance and an average of 5 days longer to reach peak infection burdens. Our results demonstrate strong intraspecific differences in tolerance and resistance that likely contribute to why population declines vary regionally across this species. Our multi-state framework allowed us to gain inference on typically hidden disease processes when testing for host tolerance or resistance. Our findings demonstrate that describing an entire host species as 'tolerant' or 'resistant' (or lack thereof) is unwise without testing for intraspecific variation.
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Affiliation(s)
- Bennett M Hardy
- Graduate Degree Program in Ecology, Colorado State University, Fort Collins, Colorado, USA
- Department of Fish, Wildlife, and Conservation Biology, Colorado State University, Fort Collins, Colorado, USA
- Department of Biology, Colorado State University, Fort Collins, Colorado, USA
| | - Erin Muths
- United States Geological Survey, Fort Collins Science Center, Fort Collins, Colorado, USA
| | - W Chris Funk
- Graduate Degree Program in Ecology, Colorado State University, Fort Collins, Colorado, USA
- Department of Biology, Colorado State University, Fort Collins, Colorado, USA
| | - Larissa L Bailey
- Graduate Degree Program in Ecology, Colorado State University, Fort Collins, Colorado, USA
- Department of Fish, Wildlife, and Conservation Biology, Colorado State University, Fort Collins, Colorado, USA
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Carroll SL, Schmidt GM, Waller JS, Graves TA. Evaluating density-weighted connectivity of black bears (Ursus americanus) in Glacier National Park with spatial capture-recapture models. MOVEMENT ECOLOGY 2024; 12:8. [PMID: 38263096 PMCID: PMC11334611 DOI: 10.1186/s40462-023-00445-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/19/2023] [Accepted: 12/19/2023] [Indexed: 01/25/2024]
Abstract
BACKGROUND Improved understanding of wildlife population connectivity among protected area networks can support effective planning for the persistence of wildlife populations in the face of land use and climate change. Common approaches to estimating connectivity often rely on small samples of individuals without considering the spatial structure of populations, leading to limited understanding of how individual movement links to demography and population connectivity. Recently developed spatial capture-recapture (SCR) models provide a framework to formally connect inference about individual movement, connectivity, and population density, but few studies have applied this approach to empirical data to support connectivity planning. METHODS We used mark-recapture data collected from 924 genetic detections of 598 American black bears (Ursus americanus) in 2004 with SCR ecological distance models to simultaneously estimate density, landscape resistance to movement, and population connectivity in Glacier National Park northwest Montana, USA. We estimated density and movement parameters separately for males and females and used model estimates to calculate predicted density-weighted connectivity surfaces. RESULTS Model results indicated that landscape structure influences black bear density and space use in Glacier. The mean density estimate was 16.08 bears/100 km2 (95% CI 12.52-20.6) for females and 9.27 bears/100 km2 (95% CI 7.70-11.14) for males. Density increased with forest cover for both sexes. For male black bears, density decreased at higher grizzly bear (Ursus arctos) densities. Drainages, valley bottoms, and riparian vegetation decreased estimates of landscape resistance to movement for male and female bears. For males, forest cover also decreased estimated resistance to movement, but a transportation corridor bisecting the study area strongly increased resistance to movement presenting a barrier to connectivity. CONCLUSIONS Density-weighed connectivity surfaces highlighted areas important for population connectivity that were distinct from areas with high potential connectivity. For black bears in Glacier and surrounding landscapes, consideration of both vegetation and valley topography could inform the placement of underpasses along the transportation corridor in areas characterized by both high population density and potential connectivity. Our study demonstrates that the SCR ecological distance model can provide biologically realistic, spatially explicit predictions to support movement connectivity planning across large landscapes.
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Affiliation(s)
- Sarah L Carroll
- Graduate Degree Program in Ecology, Colorado State University, Fort Collins, CO, 80523, USA.
| | - Greta M Schmidt
- Department of Biology, San Diego State University, San Diego, CA, 92182, USA
| | - John S Waller
- Glacier National Park, P.O. Box 128, West Glacier, MT, 59936, USA
| | - Tabitha A Graves
- U.S. Geological Survey, Northern Rocky Mountain Science Center, PO Box 169, West Glacier, MT, 59936, USA
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Anderson AK, Waller JS, Thornton DH. Canada lynx occupancy and density in Glacier National Park. J Wildl Manage 2023. [DOI: 10.1002/jwmg.22383] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/27/2023]
Affiliation(s)
| | - John S. Waller
- National Park Service PO Box 128 West Glacier MT 59936 USA
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Schuyler EM, Hagen CA, Anthony CR, Foster LJ, Dugger KM. Temporal mismatch in space use by a sagebrush obligate species after large‐scale wildfire. Ecosphere 2022. [DOI: 10.1002/ecs2.4179] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022] Open
Affiliation(s)
- Elizabeth M. Schuyler
- Oregon Cooperative Fish and Wildlife Research Unit, Department of Fisheries, Wildlife, and Conservation Sciences Oregon State University Corvallis Oregon USA
| | - Christian A. Hagen
- Department of Fisheries, Wildlife, and Conservation Sciences Oregon State University Corvallis Oregon USA
| | | | - Lee J. Foster
- Oregon Department of Fish and Wildlife Salem Oregon USA
| | - Katie M. Dugger
- U.S. Geological Survey, Oregon Cooperative Fish and Wildlife Research Unit, Department of Fisheries, Wildlife, and Conservation Sciences Oregon State University Corvallis Oregon USA
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Tempel DJ, Kramer HA, Jones GM, Gutiérrez RJ, Sawyer SC, Koltunov A, Slaton M, Tanner R, Hobart BK, Peery MZ. Population decline in California spotted owls near their southern range boundary. J Wildl Manage 2022. [DOI: 10.1002/jwmg.22168] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Douglas J. Tempel
- University of Wisconsin‐Madison 1630 Linden Drive Madison WI 53706 USA
| | - H. Anu Kramer
- University of Wisconsin‐Madison 1630 Linden Drive Madison WI 53706 USA
| | - Gavin M. Jones
- U.S. Forest Service Rocky Mountain Research Station 333 Broadway Boulevard SE Albuquerque NM 87102 USA
| | - R. J. Gutiérrez
- University of Minnesota‐St. Paul 2003 Upper Buford Circle St. Paul MN 55108 USA
| | - Sarah C. Sawyer
- U.S. Forest Service Region 5 1323 Club Drive Vallejo CA 94592 USA
| | - Alexander Koltunov
- University of California‐Davis Center for Spatial Technologies and Remote Sensing (CSTARS) Davis CA 95616 USA
| | - Michèle Slaton
- U.S. Forest Service Region 5, Remote Sensing Laboratory 3237 Peacekeeper Way, Suite 201 McClellan CA 95652 USA
| | - Richard Tanner
- Tanner Environmental Services PO Box 1254 Alameda CA 94501 USA
| | - Brendan K. Hobart
- University of Wisconsin‐Madison 1630 Linden Drive Madison WI 53706 USA
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Ahizi MN, Kouman CY, Ouattara A, Kouamé NP, Dede A, Fairet E, Shirley MH. Detectability and impact of repetitive surveys on threatened West African crocodylians. Ecol Evol 2021; 11:15062-15076. [PMID: 34765160 PMCID: PMC8571622 DOI: 10.1002/ece3.8188] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2021] [Revised: 09/05/2021] [Accepted: 09/09/2021] [Indexed: 11/28/2022] Open
Abstract
West African crocodylians are among the most threatened and least studied crocodylian species globally. Assessing population status and establishing a basis for population monitoring is the highest priority action for this region. Monitoring of crocodiles is influenced by many factors that affect detectability, including environmental variables and individual- or population-level wariness. We investigated how these factors affect detectability and counts of the critically endangered Mecistops cataphractus and the newly recognized Crocodylus suchus. We implemented 195 repetitive surveys at 38 sites across Côte d'Ivoire between 2014 and 2019. We used an occupancy-based approach and a count-based GLMM analysis to determine the effect of environmental and anthropogenic variables on detection and modeled crocodile wariness over repetitive surveys. Despite their rarity and level of threat, detection probability of both species was relatively high (0.75 for M. cataphractus and 0.81 for C. suchus), but a minimum of two surveys were required to infer absence of either species with 90% confidence. We found that detection of M. cataphractus was significantly negatively influenced by fishing net encounter rate, while high temperature for the previous 48 h of the day of the survey increased C. suchus detection. Precipitation and aquatic vegetation had significant negative and positive influence, respectively, on M. cataphractus counts and showed the opposite effect for C. suchus counts. We also found that fishing encounter rate had a significant negative effect on C. suchus counts. Interestingly, survey repetition did not generally affect wariness for either species, though there was some indication that at least M. cataphractus was more wary by the fourth replicate. These results are informative for designing future survey and monitoring protocols for these threatened crocodylians in West Africa and for other endangered crocodylians globally.
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Affiliation(s)
- Michel N. Ahizi
- Université Nangui‐AbrogouaAbidjanCôte d'Ivoire
- Project MecistopsSarasotaFloridaUSA
| | - Christine Y. Kouman
- Université Nangui‐AbrogouaAbidjanCôte d'Ivoire
- Project MecistopsSarasotaFloridaUSA
| | | | | | - Azani Dede
- Office Ivoirien des Parcs et RéservesAbidjanCôte d'Ivoire
| | - Emilie Fairet
- Project MecistopsSarasotaFloridaUSA
- Wildlife Conservation SocietyNew YorkNew YorkUSA
| | - Matthew H. Shirley
- Project MecistopsSarasotaFloridaUSA
- Institute of EnvironmentFlorida International UniversityNorth MiamiFloridaUSA
- Rare Species Conservatory FoundationLoxahatcheeFloridaUSA
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Atkinson SN, Laidre KL, Arnold TW, Stapleton S, Regehr EV, Born EW, Wiig Ø, Dyck M, Lunn NJ, Stern HL, Paetkau D. A novel mark-recapture-recovery survey using genetic sampling for polar bears Ursus maritimus in Baffin Bay. ENDANGER SPECIES RES 2021. [DOI: 10.3354/esr01148] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Changes in sea-ice dynamics are affecting polar bears Ursus maritimus across their circumpolar range, which highlights the importance of periodic demographic assessments to inform management and conservation. We used genetic mark-recapture-recovery to derive estimates of abundance and survival for the Baffin Bay (BB) polar bear subpopulation—the first time this method has been used successfully for this species. Genetic data from tissue samples we collected via biopsy darting were combined with historical physical capture and harvest recovery data. The combined data set consisted of 1410 genetic samples (2011-2013), 914 physical captures (1993-1995, 1997), and 234 harvest returns of marked bears (1993-2013). The estimate of mean subpopulation abundance was 2826 (95% CI = 2284-3367) in 2012-2013. Estimates of annual survival (mean ± SE) were 0.90 ± 0.05 and 0.78 ± 0.06 for females and males age ≥2 yr, respectively. The proportion of total mortality of adult females and males that was attributed to legal harvest was 0.16 ± 0.05 and 0.26 ± 0.06, respectively. Remote sensing sea-ice data, telemetry data, and spatial distribution of onshore sampling indicated that polar bears were more likely to use offshore sea-ice habitat during the 1990s sampling period compared to the 2010s. Furthermore, in the 1990s, sampling of deep fjords and inland areas was limited, and no offshore sampling occurred in either time period, which precluded comparisons of abundance between the 1993-1997 and 2011-2013 study periods. Our findings demonstrate that genetic sampling can be a practical method for demographic assessment of polar bears over large spatial and temporal scales.
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Affiliation(s)
- SN Atkinson
- Wildlife Research Section, Department of Environment, Government of Nunavut, Igloolik, NU X0A 0L0, Canada
| | - KL Laidre
- Polar Science Center, Applied Physics Laboratory, University of Washington, Seattle, WA 98105, USA
- Greenland Institute of Natural Resources, 3900 Nuuk, Greenland
| | - TW Arnold
- Department of Fisheries, Wildlife, and Conservation Biology, University of Minnesota, St. Paul, MN 55108, USA
| | - S Stapleton
- Department of Fisheries, Wildlife, and Conservation Biology, University of Minnesota, St. Paul, MN 55108, USA
| | - EV Regehr
- Polar Science Center, Applied Physics Laboratory, University of Washington, Seattle, WA 98105, USA
| | - EW Born
- Greenland Institute of Natural Resources, 3900 Nuuk, Greenland
| | - Ø Wiig
- Natural History Museum, University of Oslo, 0318, Oslo, Norway
| | - M Dyck
- Wildlife Research Section, Department of Environment, Government of Nunavut, Igloolik, NU X0A 0L0, Canada
| | - NJ Lunn
- Environment and Climate Change Canada, University of Alberta, Edmonton, AB T6G 2E9, Canada
| | - HL Stern
- Polar Science Center, Applied Physics Laboratory, University of Washington, Seattle, WA 98105, USA
| | - D Paetkau
- Wildlife Genetics International, Nelson, BC V1L 5P9, Canada
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Andrade-Ponce G, Cepeda-Duque JC, Mandujano S, Velásquez-C KL, Lizcano DJ, Gómez-Valencia B. Modelos de ocupación para datos de cámaras trampa. MAMMALOGY NOTES 2021. [DOI: 10.47603/mano.v7n1.200] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
El uso de las cámaras trampa (CT) en la investigación de fauna silvestre puede generar conclusiones sesgadas cuando la detectabilidad imperfecta de especies no es considerada. Herramientas analíticas como los modelos de ocupación permiten estimar simultáneamente parámetros ecológicos corregidos por la probabilidad de detección. Sin embargo, es necesario implementar e interpretar de manera correcta los parámetros estimados por estos modelos para obtener inferencias con sentido biológico. Este trabajo presenta un marco conceptual base para diseñar de manera apropiada un análisis de ocupación por medio de datos de CT. Se discuten y se señalan recomendaciones generales para la definición de los elementos del modelo, el diseño del muestreo, así como estrategias de modelamiento estadísticos apropiadas dependiendo de los objetivos del estudio, las características de la especie y el tipo de datos obtenidos. Las decisiones tomadas por el investigador para definir cada uno de los componentes del modelo deben considerar la escala adecuada para que el fenómeno de estudio tenga sentido biológico. De esta manera, es posible generar inferencias y conclusiones robustas a partir de información de CT, lo que permite avanzar en el entendimiento de los mecanismos que subyacen a la ecología espacial de fauna silvestre y por lo tanto en su conservación.
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Bougie T, Byer N, Lapin C, Peery MZ, Woodford J, Pauli J. Wood Turtle (Glyptemys insculpta) nest protection reduces depredation and increases success, but annual variation influences its effectiveness. CAN J ZOOL 2020. [DOI: 10.1139/cjz-2020-0064] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Habitat loss is the leading cause of species extinctions and is especially detrimental to habitat specialists. Freshwater turtles require specific habitat types at different points in their life cycle; notably, the loss of nesting habitat has led to increased nest depredation and adult mortality. In response, conservationists have implemented nest protection and habitat restoration programs to recover declining populations. Although assumed to increase nest survival, effectiveness of these methods has not been rigorously quantified. We located Wood Turtle (Glyptemys insculpta (Le Conte, 1830)) nests in Wisconsin (USA) and conducted two analyses — logistic regression and logistic exposure — to investigate the influence of management actions and environmental factors on nest survival. The depredation rate decreased by 47% for protected nests and declined as nests aged; the success rate increased by 28% for protected nests and increased for nests in areas with fewer roads. We found high annual variation in success, and although weather variables were not predictive, likely due to their coarse scale, we posit that this inter-annual variation was driven by variation in weather conditions. Our results suggest that nest protection is effective at increasing nest survival, but future efforts should span multiple years to account for the effects of annual variation in environmental conditions.
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Affiliation(s)
- T.A. Bougie
- Department of Forest and Wildlife Ecology, University of Wisconsin, 1630 Linden Drive, Madison, WI 53706, USA
| | - N.W. Byer
- Department of Forest and Wildlife Ecology, University of Wisconsin, 1630 Linden Drive, Madison, WI 53706, USA
| | - C.N. Lapin
- Wisconsin Department of Natural Resources, 107 Sutliff Avenue, Rhinelander, WI 54501, USA
| | - M. Zachariah Peery
- Department of Forest and Wildlife Ecology, University of Wisconsin, 1630 Linden Drive, Madison, WI 53706, USA
| | - J.E. Woodford
- Wisconsin Department of Natural Resources, 107 Sutliff Avenue, Rhinelander, WI 54501, USA
| | - J.N. Pauli
- Department of Forest and Wildlife Ecology, University of Wisconsin, 1630 Linden Drive, Madison, WI 53706, USA
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Morin DJ, Yackulic CB, Diffendorfer JE, Lesmeister DB, Nielsen CK, Reid J, Schauber EM. Is your ad hoc model selection strategy affecting your multimodel inference? Ecosphere 2020. [DOI: 10.1002/ecs2.2997] [Citation(s) in RCA: 57] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Affiliation(s)
- Dana J. Morin
- Department of Wildlife, Fisheries and Aquaculture Mississippi State University Box 9680 Mississippi State Mississippi 39762 USA
| | - Charles B. Yackulic
- Southwest Biological Science Center U.S. Geological Survey 2255 N. Gemini Drive Flagstaff Arizona 86001 USA
| | - Jay E. Diffendorfer
- Denver Federal Center U.S. Geological Survey, Geosciences and Environmental Change Science Center Denver Colorado 80225 USA
| | - Damon B. Lesmeister
- Pacific Northwest Research Station U.S. Forest Service and Department of Fisheries and Wildlife Oregon State University 3200 SW Jefferson Way Corvallis Oregon 97331 USA
| | - Clayton K. Nielsen
- Cooperative Wildlife Research Laboratory and Department of Forestry Southern Illinois University 251 Life Science II, Mail Code 6504 Carbondale Illinois 62901 USA
| | - Janice Reid
- Pacific Northwest Research Station U.S. Forest Service 777 NW Garden Valley Blvd Roseburg Oregon 97471 USA
| | - Eric M. Schauber
- Illinois Natural History Survey Prairie Research Institute University of Illinois Urbana‐Champaign 1816 S. Oak Street Champaign Illinois 61820 USA
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Pittenger JS, Hornsby FE, Gustafson ZL. OCCUPANCY MODELING OF HABITAT USE BY WHITE SANDS PUPFISH AT THE MALPAIS SPRING CIÉNEGA, NEW MEXICO. SOUTHWEST NAT 2019. [DOI: 10.1894/0038-4909-63-4-235] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Affiliation(s)
- John S. Pittenger
- Blue Earth Ecological Consultants, Inc., 408 Estrella Court, Santa Fe, NM 87501 (JSP)
| | - Fawn E. Hornsby
- Western Ecosystems Technology, Inc., 200 South Second Street, Laramie, WY 82070 (FEH, ZLG)
| | - Zoey L. Gustafson
- Western Ecosystems Technology, Inc., 200 South Second Street, Laramie, WY 82070 (FEH, ZLG)
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Dertien JS, Bagley CF, Haddix JA, Brinkman AR, Neipert ES, Jochum KA, Doherty PF. Spatiotemporal habitat use by a multitrophic Alaska alpine mammal community. CAN J ZOOL 2019. [DOI: 10.1139/cjz-2018-0186] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Evaluating sympatric habitat use of a mammal community can help determine intra- and inter-guild interactions and identify important habitats, potentially improving the management of these communities with a changing climate. Increasingly variable climatic patterns in Alaska, USA, are raising concerns of mismatched phenologies and altered ecosystem structures. We studied the occupancy of 10 mammal species over 15 months, via camera traps, occupying alpine areas of the Alaska Range in interior Alaska, from 2013 to 2014. We tested hypotheses about how habitat use of these species within and between groups varied by spatial and temporal covariates. Furthermore, we modeled two-species occupancy of brown bears (Ursus arctos Linnaeus, 1758) and gray wolves (Canis lupus Linnaeus, 1758) against different potential prey species. Our results suggest that medium-sized and large herbivore use was positively correlated with fine-scale covariates including rock, forb, and graminoid coverage. Large herbivore habitat use was also correlated with abiotic landscape covariates. Detection probabilities of predators and Dall’s sheep (Ovis dalli dalli Nelson, 1884) was improved by camera traps on wildlife trails. Two-species models suggested co-occurrence of habitat use between brown bear – caribou (Rangifer tarandus (Linnaeus, 1758)) and gray wolf – caribou. Results demonstrate the sympatric habitat use by multiple groups of mammals within Alaskan alpine ecosystems and the importance of incorporating multiple groups and spatial scales when making management decisions.
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Affiliation(s)
- Jeremy S. Dertien
- Department of Fish, Wildlife, and Conservation Biology, Colorado State University, 1474 Campus Delivery, Fort Collins, CO 80523-1474, USA
| | - Calvin F. Bagley
- Center for Environmental Management of Military Lands, Colorado State University, 1490 Campus Delivery, Fort Collins, CO 80523-1490, USA
| | - John A. Haddix
- Environmental Division, United States Army Garrison Fort Wainwright, 3023 Engineer Place, Fort Wainwright, AK 99703, USA
| | - Aleya R. Brinkman
- Center for Environmental Management of Military Lands, United States Army Garrison Fort Wainwright, 3023 Engineer Place, Fort Wainwright, AK 99703, USA
| | - Elizabeth S. Neipert
- Center for Environmental Management of Military Lands, Colorado State University, 1490 Campus Delivery, Fort Collins, CO 80523-1490, USA
| | - Kim A. Jochum
- Center for Environmental Management of Military Lands, United States Army Garrison Fort Wainwright, 3023 Engineer Place, Fort Wainwright, AK 99703, USA
| | - Paul F. Doherty
- Department of Fish, Wildlife, and Conservation Biology, Colorado State University, 1474 Campus Delivery, Fort Collins, CO 80523-1474, USA
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14
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Gimenez O, Lebreton J, Choquet R, Pradel R. R2ucare: An
r
package to perform goodness‐of‐fit tests for capture–recapture models. Methods Ecol Evol 2018. [DOI: 10.1111/2041-210x.13014] [Citation(s) in RCA: 47] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- Olivier Gimenez
- CEFEUMR 5175CNRS ‐ Université de Montpellier ‐ Université Paul‐Valéry Montpellier ‐ EPHE Montpellier Cedex 5 France
| | - Jean‐Dominique Lebreton
- CEFEUMR 5175CNRS ‐ Université de Montpellier ‐ Université Paul‐Valéry Montpellier ‐ EPHE Montpellier Cedex 5 France
| | - Rémi Choquet
- CEFEUMR 5175CNRS ‐ Université de Montpellier ‐ Université Paul‐Valéry Montpellier ‐ EPHE Montpellier Cedex 5 France
| | - Roger Pradel
- CEFEUMR 5175CNRS ‐ Université de Montpellier ‐ Université Paul‐Valéry Montpellier ‐ EPHE Montpellier Cedex 5 France
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Pavlacky DC, Lukacs PM, Blakesley JA, Skorkowsky RC, Klute DS, Hahn BA, Dreitz VJ, George TL, Hanni DJ. A statistically rigorous sampling design to integrate avian monitoring and management within Bird Conservation Regions. PLoS One 2017; 12:e0185924. [PMID: 29065128 PMCID: PMC5655431 DOI: 10.1371/journal.pone.0185924] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2017] [Accepted: 09/21/2017] [Indexed: 11/18/2022] Open
Abstract
Monitoring is an essential component of wildlife management and conservation. However, the usefulness of monitoring data is often undermined by the lack of 1) coordination across organizations and regions, 2) meaningful management and conservation objectives, and 3) rigorous sampling designs. Although many improvements to avian monitoring have been discussed, the recommendations have been slow to emerge in large-scale programs. We introduce the Integrated Monitoring in Bird Conservation Regions (IMBCR) program designed to overcome the above limitations. Our objectives are to outline the development of a statistically defensible sampling design to increase the value of large-scale monitoring data and provide example applications to demonstrate the ability of the design to meet multiple conservation and management objectives. We outline the sampling process for the IMBCR program with a focus on the Badlands and Prairies Bird Conservation Region (BCR 17). We provide two examples for the Brewer's sparrow (Spizella breweri) in BCR 17 demonstrating the ability of the design to 1) determine hierarchical population responses to landscape change and 2) estimate hierarchical habitat relationships to predict the response of the Brewer's sparrow to conservation efforts at multiple spatial scales. The collaboration across organizations and regions provided economy of scale by leveraging a common data platform over large spatial scales to promote the efficient use of monitoring resources. We designed the IMBCR program to address the information needs and core conservation and management objectives of the participating partner organizations. Although it has been argued that probabilistic sampling designs are not practical for large-scale monitoring, the IMBCR program provides a precedent for implementing a statistically defensible sampling design from local to bioregional scales. We demonstrate that integrating conservation and management objectives with rigorous statistical design and analyses ensures reliable knowledge about bird populations that is relevant and integral to bird conservation at multiple scales.
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Affiliation(s)
- David C. Pavlacky
- Bird Conservancy of the Rockies, Brighton, Colorado, United States of America
- * E-mail:
| | - Paul M. Lukacs
- Wildlife Biology Program, Department of Ecosystem and Conservation Sciences, W.A. Franke College of Forestry and Conservation, University of Montana, Missoula, Montana, United States of America
| | | | - Robert C. Skorkowsky
- Chugach National Forest, Cordova Ranger District, United States Forest Service, Cordova, Alaska, United States of America
| | - David S. Klute
- Colorado Parks and Wildlife, Denver, Colorado, United States of America
| | - Beth A. Hahn
- Aldo Leopold Wilderness Research Institute, Missoula, Montana, United States of America
| | - Victoria J. Dreitz
- Avian Science Center and Wildlife Biology Program, Department of Ecosystem and Conservation Sciences, W.A. Franke College of Forestry and Conservation, University of Montana, Missoula, Montana, United States of America
| | - T. Luke George
- Bird Conservancy of the Rockies, Brighton, Colorado, United States of America
| | - David J. Hanni
- Bird Conservancy of the Rockies, Brighton, Colorado, United States of America
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Dertien JS, Doherty PF, Bagley CF, Haddix JA, Brinkman AR, Neipert ES. Evaluating dall's sheep habitat use via camera traps. J Wildl Manage 2017. [DOI: 10.1002/jwmg.21308] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Jeremy S. Dertien
- Department of Fish Wildlife and Conservation BiologyColorado State University1474 Campus DeliveryFort CollinsCO80523‐1474USA
| | - Paul F. Doherty
- Department of Fish Wildlife and Conservation BiologyColorado State University1474 Campus DeliveryFort CollinsCO80523‐1474USA
| | - Calvin F. Bagley
- Center for Environmental Management of Military LandsColorado State University1490 Campus DeliveryFort CollinsCO80523‐1490USA
| | - John A. Haddix
- Environmental DivisionUnited States Army Garrison Fort Wainwright3023 Engineer PlaceFort WainwrightAK99703USA
| | - Aleya R. Brinkman
- Center for Environmental Management of Military LandsEnvironmental Division, United States Army Garrison Fort Wainwright3023 Engineer PlaceFort WainwrightAK99703USA
| | - Elizabeth S. Neipert
- Center for Environmental Management of Military LandsColorado State University1490 Campus DeliveryFort CollinsCO80523‐1490USA
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