@article{rivera_zegarra_puente-rolon_arocho-hernandez_hostetter_collazo_bell_2024, title={Multiple records of the introduced parthenogenetic Smooth-scaled Tegulet, <i>Gymnophthalmus underwoodi</i> Grant 1958, in Puerto Rico}, url={https://doi.org/10.17161/randa.v31i1.21466}, DOI={10.17161/randa.v31i1.21466}, abstractNote={The introduction of invasive species to islands can be devastating to local biota. While many invasive species’successful colonization of new habitats can be attributed to features like high fecundity or low mate selectivity,parthenogenetic species pose a unique threat in their ability to reproduce asexually at high rates. The Smooth-scaledTegulet (Gymnophthalmus underwoodi), first described from Barbados in the 1950s, has since been documented as anintroduced species across additional Lesser and Greater Antillean islands as well as northwestern Brazil and Venezuela.Herein we report multiple individuals from Puerto Rico, including the first genetic records, which indicate that theindividuals on this island are most closely related to populations recorded from Brazil and Montserrat. Additionalgenetic information is necessary to determine the timing and migration of this species across the Caribbean. Regardless,the continued geographic expansion of this parthenogen across the Caribbean could present a threat to local fauna.}, journal={Reptiles & Amphibians}, author={Rivera, Danielle and Zegarra, Jan and Puente-Rolon, Alberto and Arocho-Hernandez, Nahira and Hostetter, Nathan and Collazo, Jaime and Bell, Rayna}, year={2024}, month={Mar} }
 @article{rivera_zegarra_puente-rolón_arocho-hernandez_hostetter_collazo_bell_2024, title={Multiple records of the introduced parthenogenetic Smooth-scaled Tegulet, Gymnophthalmus underwoodi Grant 1958, in Puerto Rico}, volume={31}, url={https://journals.ku.edu/reptilesandamphibians/article/view/21466}, DOI={10.17161/randa.v16i1}, number={1}, journal={Reptiles & Amphibians}, author={Rivera, Danielle and Zegarra, Jan and Puente-Rolón, Alberto R. and Arocho-Hernandez, Nahira and Hostetter, Nathan and Collazo, Jaime and Bell, Rayna}, year={2024}, month={Mar}, pages={e21466} }
 @article{hostetter_evans_payton_roby_lyons_collis_2023, title={A Review of Factors Affecting the Susceptibility of Juvenile Salmonids to Avian Predation}, volume={2}, ISSN={["1548-8675"]}, url={https://doi.org/10.1002/nafm.10862}, DOI={10.1002/nafm.10862}, abstractNote={Abstract}, journal={NORTH AMERICAN JOURNAL OF FISHERIES MANAGEMENT}, author={Hostetter, Nathan J. J. and Evans, Allen F. F. and Payton, Quinn and Roby, Daniel D. D. and Lyons, Donald E. E. and Collis, Ken}, year={2023}, month={Feb} }
 @article{evans_payton_hostetter_collis_cramer_roby_2022, title={Cumulative effects of piscivorous colonial waterbirds on juvenile salmonids: A multi predator-prey species evaluation}, volume={17}, ISSN={["1932-6203"]}, DOI={10.1371/journal.pone.0272875}, abstractNote={We investigated the cumulative effects of predation by piscivorous colonial waterbirds on the survival of multiple salmonid (Oncorhynchusspp.) populations listed under the U.S. Endangered Species Act (ESA) and determined what proportion of all sources of fish mortality (1 –survival) were due to birds in the Columbia River basin, USA. Anadromous juvenile salmonids (smolts) were exposed to predation by Caspian terns (Hydroprogne caspia), double-crested cormorants (Nannopterum auritum), California gulls (Larus californicus), and ring-billed gulls (L.delawarensis), birds known to consume both live and dead fish. Avian consumption and survival probabilities (proportion of available fish consumed or alive) were estimated for steelhead trout (O.mykiss), yearling Chinook salmon (O.tshawytscha), sub-yearling Chinook salmon, and sockeye salmon (O.nerka) during out-migration from the lower Snake River to the Pacific Ocean during an 11-year study period (2008–2018). Results indicated that probabilities of avian consumption varied greatly across salmonid populations, bird species, colony location, river reach, and year. Cumulative consumption probabilities (consumption by birds from all colonies combined) were consistently the highest for steelhead, with annual estimates ranging from 0.22 (95% credible interval = 0.20–0.26) to 0.51 (0.43–0.60) of available smolts. The cumulative effects of avian consumption were significantly lower for yearling and sub-yearling Chinook salmon, with consumption probabilities ranging annually from 0.04 (0.02–0.07) to 0.10 (0.07–0.15) and from 0.06 (0.3–0.09) to 0.15 (0.10–0.23), respectively. Avian consumption probabilities for sockeye salmon smolts was generally higher than for Chinook salmon smolts, but lower than for steelhead smolts, ranging annually from 0.08 (0.03–0.22) to 0.25 (0.14–0.44). Although annual consumption probabilities for birds from certain colonies were more than 0.20 of available smolts, probabilities from other colonies were less than 0.01 of available smolts, indicating that not all colonies of birds posed a substantial risk to smolt mortality. Consumption probabilities were lowest for small colonies and for colonies located a considerable distance from the Snake and Columbia rivers. Total mortality attributed to avian consumption was relatively small for Chinook salmon (less than 10%) but was the single greatest source of mortality for steelhead (greater than 50%) in all years evaluated. Results suggest that the potential benefits to salmonid populations of managing birds to reduce smolt mortality would vary widely depending on the salmonid population, the species of bird, and the size and location of the breeding colony.}, number={8}, journal={PLOS ONE}, author={Evans, Allen F. and Payton, Quinn and Hostetter, Nathan J. and Collis, Ken and Cramer, Bradley M. and Roby, Daniel D.}, year={2022}, month={Aug} }
 @article{gardner_mcclintock_converse_hostetter_2022, title={Integrated animal movement and spatial capture-recapture models: Simulation, implementation, and inference}, volume={7}, ISSN={["1939-9170"]}, url={https://doi.org/10.1002/ecy.3771}, DOI={10.1002/ecy.3771}, abstractNote={Abstract}, journal={ECOLOGY}, author={Gardner, Beth and McClintock, Brett T. and Converse, Sarah J. and Hostetter, Nathan J.}, year={2022}, month={Jul} }
 @article{hostetter_regehr_wilson_royle_converse_2022, title={Modeling spatiotemporal abundance and movement dynamics using an integrated spatial capture–recapture movement model}, url={https://doi.org/10.1002/ecy.3772}, DOI={10.1002/ecy.3772}, abstractNote={Abstract}, journal={Ecology}, author={Hostetter, Nathan J. and Regehr, Eric V. and Wilson, Ryan R. and Royle, J. Andrew and Converse, Sarah J.}, year={2022}, month={Oct} }
 @article{hostetter_payton_roby_collis_evans_2022, title={Predation probabilities and functional responses: How piscivorous waterbirds respond to pulses in fish abundance}, volume={13}, ISSN={["2150-8925"]}, url={https://doi.org/10.1002/ecs2.4220}, DOI={10.1002/ecs2.4220}, abstractNote={Abstract}, number={9}, journal={ECOSPHERE}, author={Hostetter, Nathan J. and Payton, Quinn and Roby, Daniel D. and Collis, Ken and Evans, Allen F.}, year={2022}, month={Sep} }
 @article{hostetter_lunn_richardson_regehr_converse_2021, title={Age-structured Jolly-Seber model expands inference and improves parameter estimation from capture-recapture data}, volume={16}, ISSN={["1932-6203"]}, url={https://doi.org/10.1371/journal.pone.0252748}, DOI={10.1371/journal.pone.0252748}, abstractNote={Understanding the influence of individual attributes on demographic processes is a key objective of wildlife population studies. Capture-recapture and age data are commonly collected to investigate hypotheses about survival, reproduction, and viability. We present a novel age-structured Jolly-Seber model that incorporates age and capture-recapture data to provide comprehensive information on population dynamics, including abundance, age-dependent survival, recruitment, age structure, and population growth rates. We applied our model to a multi-year capture-recapture study of polar bears (Ursus maritimus) in western Hudson Bay, Canada (2012–2018), where management and conservation require a detailed understanding of how polar bears respond to climate change and other factors. In simulation studies, the age-structured Jolly-Seber model improved precision of survival, recruitment, and annual abundance estimates relative to standard Jolly-Seber models that omit age information. Furthermore, incorporating age information improved precision of population growth rates, increased power to detect trends in abundance, and allowed direct estimation of age-dependent survival and changes in annual age structure. Our case study provided detailed evidence for senescence in polar bear survival. Median survival estimates were lower (<0.95) for individuals aged <5 years, remained high (>0.95) for individuals aged 7–22 years, and subsequently declined to near zero for individuals >30 years. We also detected cascading effects of large recruitment classes on population age structure, which created major shifts in age structure when these classes entered the population and then again when they reached prime breeding ages (10–15 years old). Overall, age-structured Jolly-Seber models provide a flexible means to investigate ecological and evolutionary processes that shape populations (e.g., via senescence, life expectancy, and lifetime reproductive success) while improving our ability to investigate population dynamics and forecast population changes from capture-recapture data.}, number={6}, journal={PLOS ONE}, author={Hostetter, Nathan J. and Lunn, Nicholas J. and Richardson, Evan S. and Regehr, Eric V. and Converse, Sarah J.}, editor={Goswami, Varun R.Editor}, year={2021}, month={Jun} }
 @article{regehr_runge_duyke_wilson_polasek_rode_hostetter_converse_2021, title={Demographic risk assessment for a harvested species threatened by climate change: polar bears in the Chukchi Sea}, url={https://doi.org/10.1002/eap.2461}, DOI={10.1002/eap.2461}, abstractNote={Abstract}, journal={Ecological Applications}, author={Regehr, Eric V. and Runge, Michael C. and Duyke, Andrew Von and Wilson, Ryan R. and Polasek, Lori and Rode, Karyn D. and Hostetter, Nathan J. and Converse, Sarah J.}, year={2021}, month={Dec} }
 @article{amburgey_adams_gardner_hostetter_siers_mcclintock_converse_2021, title={Evaluation of camera trap‐based abundance estimators for unmarked populations}, url={https://doi.org/10.1002/eap.2410}, DOI={10.1002/eap.2410}, abstractNote={Abstract}, journal={Ecological Applications}, author={Amburgey, S. M. and Adams, A. A. Yackel and Gardner, B. and Hostetter, N. J. and Siers, S. R. and McClintock, B. T. and Converse, S. J.}, year={2021}, month={Oct} }
 @article{payton_evans_hostetter_roby_cramer_collis_2020, title={Measuring the Additive Effects of Predation on Prey Survival Across Spatial Scales}, volume={101}, url={https://doi.org/10.1002/bes2.1756}, DOI={10.1002/bes2.1756}, abstractNote={In the Columbia River, USA, Caspian terns (Hydroprogne caspia) prey upon endangered steelhead trout (Oncorhynchus mykiss). We used a mark–recapture–recovery dataset to jointly estimate tern predation and steelhead survival to investigate to what degree predation was an additive versus compensatory source of fish mortality. Results provide novel evidence that tern predation was a super additive source of fish mortality during the juvenile life stage and a partially additive source of mortality to the adult life stage, despite predation occurring only during the juvenile life stage. Estimated levels of compensation have important implications for predator management actions aimed at increasing the survival of steelhead. These photographs illustrate the article “Measuring the additive effects of predation on prey survival across spatial scales” by Quinn Payton, Allen F. Evans, Nathan J. Hostetter, Daniel D. Roby, Brad Cramer, and Ken Collis published in Ecological Applications. https://doi.org/10.1002/eap.2193}, number={4}, journal={The Bulletin of the Ecological Society of America}, publisher={Wiley}, author={Payton, Quinn and Evans, Allen F. and Hostetter, Nathan J. and Roby, Daniel D. and Cramer, Brad and Collis, Ken}, year={2020}, month={Oct} }
 @article{payton_evans_hostetter_roby_cramer_collis_2020, title={Measuring the additive effects of predation on prey survival across spatial scales}, volume={30}, url={https://doi.org/10.1002/eap.2193}, DOI={10.1002/eap.2193}, abstractNote={Abstract}, number={8}, journal={Ecological Applications}, publisher={Wiley}, author={Payton, Quinn and Evans, Allen F. and Hostetter, Nathan J. and Roby, Daniel D. and Cramer, Brad and Collis, Ken}, year={2020}, month={Dec} }
 @article{hostetter_ryan_grosshuesch_catton_malick‐wahls_smith_gardner_2020, title={Quantifying spatiotemporal occupancy dynamics and multi‐year core‐use areas at a species range boundary}, url={https://doi.org/10.1111/ddi.13066}, DOI={10.1111/ddi.13066}, abstractNote={Abstract}, journal={Diversity and Distributions}, author={Hostetter, Nathan J. and Ryan, Daniel and Grosshuesch, David and Catton, Timothy and Malick‐Wahls, Sarah and Smith, Tamara A. and Gardner, Beth}, editor={Alice, HughesEditor}, year={2020}, month={Jul} }
 @article{hostettere_gardner_sillett_pollock_simons_2019, title={An integrated model decomposing the components of detection probability and abundance in unmarked populations}, volume={10}, ISSN={["2150-8925"]}, url={https://doi.org/10.1002/ecs2.2586}, DOI={10.1002/ecs2.2586}, abstractNote={Abstract}, number={3}, journal={ECOSPHERE}, publisher={Wiley}, author={Hostettere, Nathan J. and Gardner, Beth and Sillett, T. Scott and Pollock, Kenneth H. and Simons, Theodore R.}, year={2019}, month={Mar} }
 @article{payton_hostetter_evans_2019, title={Jointly estimating survival and mortality: integrating recapture and recovery data from complex multiple predator systems}, volume={26}, url={https://doi.org/10.1007/s10651-019-00421-8}, DOI={10.1007/s10651-019-00421-8}, number={2}, journal={Environmental and Ecological Statistics}, publisher={Springer Science and Business Media LLC}, author={Payton, Quinn and Hostetter, Nathan J. and Evans, Allen F.}, year={2019}, month={Jun}, pages={107–125} }
 @article{hostetter_royle_2019, title={Movement-assisted localization from acoustic telemetry data}, volume={12}, url={https://doi.org/10.1101/2019.12.31.890962}, DOI={10.1101/2019.12.31.890962}, abstractNote={Abstract}, publisher={Cold Spring Harbor Laboratory}, author={Hostetter, Nathan J. and Royle, J. Andrew}, year={2019}, month={Dec} }
 @article{lloyd_hostetter_jackson_converse_moehrenschlager_2019, title={Optimizing release strategies: a stepping‐stone approach to reintroduction}, url={http://dx.doi.org/10.1111/acv.12448}, DOI={10.1111/acv.12448}, abstractNote={Abstract}, journal={Animal Conservation}, author={Lloyd, Natasha and Hostetter, N. J. and Jackson, C. L. and Converse, S. J. and Moehrenschlager, A.}, year={2019}, month={Apr} }
 @article{regehr_hostetter_wilson_rode_martin_converse_2018, title={Integrated Population Modeling Provides the First Empirical Estimates of Vital Rates and Abundance for Polar Bears in the Chukchi Sea}, url={https://doi.org/10.1038/s41598-018-34824-7}, DOI={10.1038/s41598-018-34824-7}, abstractNote={Abstract}, journal={Scientific Reports}, author={Regehr, Eric V. and Hostetter, Nathan J. and Wilson, Ryan R. and Rode, Karyn D. and Martin, Michelle St. and Converse, Sarah J.}, year={2018}, month={Nov} }
 @article{felton_hostetter_pollock_simons_2017, title={Managing American Oystercatcher (Haematopus palliatus) Population Growth by Targeting Nesting Season Vital Rates}, volume={40}, ISSN={1524-4695 1938-5390}, url={http://dx.doi.org/10.1675/063.040.sp106}, DOI={10.1675/063.040.sp106}, abstractNote={Abstract. In populations of long-lived species, adult survival typically has a relatively high influence on population growth. From a management perspective, however, adult survival can be difficult to increase in some instances, so other component rates must be considered to reverse population declines. In North Carolina, USA, management to conserve the American Oystercatcher (Haematopus palliatus) targets component vital rates related to fecundity, specifically nest and chick survival. The effectiveness of such a management approach in North Carolina was assessed by creating a three-stage female-based deterministic matrix model. Isoclines were produced from the matrix model to evaluate minimum nest and chick survival rates necessary to reverse population decline, assuming all other vital rates remained stable at mean values. Assuming accurate vital rates, breeding populations within North Carolina appear to be declining. To reverse this decline, combined nest and chick survival would need to increase from 0.14 to ≤ 0.27, a rate that appears to be attainable based on historical estimates. Results are heavily dependent on assumptions of other vital rates, most notably adult survival, revealing the need for accurate estimates of all vital rates to inform management actions. This approach provides valuable insights for evaluating conservation goals for species of concern.}, number={sp1}, journal={Waterbirds}, publisher={Waterbird Society}, author={Felton, Shilo K. and Hostetter, Nathan J. and Pollock, Kenneth H. and Simons, Theodore R.}, year={2017}, month={Feb}, pages={44–54} }
 @article{hostetter_evans_cramer_collis_lyons_roby_2015, title={Quantifying Avian Predation on Fish Populations: Integrating Predator-Specific Deposition Probabilities in Tag Recovery Studies}, volume={144}, ISSN={["1548-8659"]}, DOI={10.1080/00028487.2014.988882}, abstractNote={Abstract}, number={2}, journal={TRANSACTIONS OF THE AMERICAN FISHERIES SOCIETY}, author={Hostetter, Nathan J. and Evans, Allen F. and Cramer, Bradley M. and Collis, Ken and Lyons, Donald E. and Roby, Daniel D.}, year={2015}, pages={410–422} }
 @article{hostetter_gardner_schweitzer_boettcher_wilke_addison_swilling_pollock_simons_2015, title={Repeated count surveys help standardize multi-agency estimates of American Oystercatcher (Haematopus palliatus) abundance}, volume={117}, ISSN={0010-5422 1938-5129}, url={http://dx.doi.org/10.1650/CONDOR-14-185.1}, DOI={10.1650/condor-14-185.1}, abstractNote={ABSTRACT The extensive breeding range of many shorebird species can make integration of survey data problematic at regional spatial scales. We evaluated the effectiveness of standardized repeated count surveys coordinated across 8 agencies to estimate the abundance of American Oystercatcher (Haematopus palliatus) breeding pairs in the southeastern United States. Breeding season surveys were conducted across coastal North Carolina (90 plots) and the Eastern Shore of Virginia (3 plots). Plots were visited on 1–5 occasions during April–June 2013. N-mixture models were used to estimate abundance and detection probability in relation to survey date, tide stage, plot size, and plot location (coastal bay vs. barrier island). The estimated abundance of oystercatchers in the surveyed area was 1,048 individuals (95% credible interval: 851–1,408) and 470 pairs (384–637), substantially higher than estimates that did not account for detection probability (maximum counts of 674 individuals and 316 pairs). Detection probability was influenced by a quadratic function of survey date, and increased from mid-April (~0.60) to mid-May (~0.80), then remained relatively constant through June. Detection probability was also higher during high tide than during low, rising, or falling tides. Abundance estimates from N-mixture models were validated at 13 plots by exhaustive productivity studies (2–5 surveys wk−1). Intensive productivity studies identified 78 breeding pairs across 13 productivity plots while the N-mixture model abundance estimate was 74 pairs (62–119) using only 1–5 replicated surveys season−1. Our results indicate that standardized replicated count surveys coordinated across multiple agencies and conducted during a relatively short time window (closure assumption) provide tremendous potential to meet both agency-level (e.g., state) and regional-level (e.g., flyway) objectives in large-scale shorebird monitoring programs.}, number={3}, journal={The Condor}, publisher={Oxford University Press (OUP)}, author={Hostetter, Nathan J. and Gardner, Beth and Schweitzer, Sara H. and Boettcher, Ruth and Wilke, Alexandra L. and Addison, Lindsay and Swilling, William R. and Pollock, Kenneth H. and Simons, Theodore R.}, year={2015}, month={Aug}, pages={354–363} }
 @article{hostetter_evans_loge_o'connor_cramer_fryer_collis_2015, title={The Influence of Individual Fish Characteristics on Survival and Detection: Similarities across Two Salmonid Species}, volume={35}, ISSN={["1548-8675"]}, DOI={10.1080/02755947.2015.1077176}, abstractNote={Abstract}, number={5}, journal={NORTH AMERICAN JOURNAL OF FISHERIES MANAGEMENT}, author={Hostetter, Nathan J. and Evans, Allen F. and Loge, Frank J. and O'Connor, Rolland R. and Cramer, Bradley M. and Fryer, Derek and Collis, Ken}, year={2015}, pages={1034–1045} }