marsh rabbit endangered

Their diet also consists of blackberry, greenbrier, and other woody and semi-woody plants. This removal effort was substantial considering 2013 camera trap surveys only identified 54 individuals on the refuge and density estimates suggested an island‐wide abundance of 120+ individual cats (Cove et al., 2018). Get PDF (1 MB) Abstract. We used LiDar data to calculate the mean elevation surrounding each camera trap site because elevation determines the susceptibility of sites to flooding and saltwater incursion from storms and hurricanes. Sylvilagus palustris (marsh rabbit) is found in parts of the southeastern United States. The marsh rabbit (Sylvilagus palustris) is a small cottontail rabbit found in marshes and swamps of coastal regions of the Eastern and Southern United States. MVC, BG, TRS, and AFO conceived and designed the research; MVC conducted fieldwork and collected data; MVC analyzed the data; TRS, BG, and AFO contributed materials/analysis tools and consulted on analyses; MVC wrote the initial draft of the manuscript; MVC, TRS, BG, and AFO revised and edited the manuscript. The full text of this article hosted at iucr.org is unavailable due to technical difficulties. We also calculated the relative differences in the number of individual cats detected at each site because cats were easily distinguishable based on pelage (Cove et al., 2018). It occupies coastal lowland areas, swamps, and rivers and is rarely found more than forty miles from the coast. A positive relative change in cats detected at each site (e.g., more individuals in 2015 relative to previous survey years) was negatively related to marsh rabbit patch colonization (β = −1.09 ± 0.60SE). Habitat destruction and fragmentation associated with residential and commercial construction activities over the past 20 years is responsible for the Lower Keys marsh rabbit™s endangered status. We sampled sites in the late dry and early transition into the rainy season, so most of the freshwater marshes were accessible. Marsh Rabbit (Sylvilagus palustris) Description. Cats were removed and new cats recruited at sites throughout the course of our study. marshes (USFWS, 1999). Marsh Rabbits are found in lowland, marshy areas near to a permanent source of water in south eastern USA. Cameras were left active at each site for 15–16 days, whereas total sampling occurred during 78 days in 2013 and 47 days in 2014 and 2015. Area (s) Where Listed As Endangered: The Lower Keys Marsh Rabbit ( Sylvilagus palustris hefneri) is a species of concern belonging in the species group "mammals" and found in the following area (s): Florida. The constant model for initial rabbit occupancy, colonization, extinction, and detection was more supported than including a year effect (ΔAIC = 3.98), so we did not include any covariates to distinguish 2013 from 2014 primary survey periods in further marsh rabbit models. We deployed camera traps to study free-ranging cats in National Wildlife Refuges and state parks on Big Pine Key and Key Largo and used spatial models to estimate cat population dynamics and stable isotope analyses to examine cat diets. We considered covariates to have strong effects if they were contained in multiple competing models and their 95% confidence intervals did not overlap zero (Burnham & Anderson, 2002). The camera trapping protocol that we used provided useful data on predators and their distribution for inferences in co‐occurrence models. Invasive mammal eradication on islands results in substantial conservation gains, Impact of food and predation on the snowshoe hare cycle, Use of a population viability analysis to evaluate human‐induced impacts and mitigation for the endangered Lower Keys marsh rabbit, Investigating species co‐occurrence patterns when species are detected imperfectly, Estimating site occupancy, colonization, and local extinction when a species is detected imperfectly, Estimating site occupancy rates when detection probabilities are less than one, Marsh rabbit mortalities tie pythons to the precipitous decline of mammals in the Everglades, A global review of the impacts of invasive cats on island endangered vertebrates, A review of feral cat eradication on islands, Camera traps in animal ecology: Methods and analyses, R: A language and environment for statistical computing, Pinpointing and preventing imminent extinctions, Estrous length, pregnancy rate, gestation and parturition lengths, litter size, and juvenile mortality in the domestic cat, Occupancy estimation and the closure assumption, Habitat succession, hardwood encroachment and raccoons as limiting factors for Lower Keys marsh rabbits, Influence of patch, habitat, and landscape characteristics on patterns of Lower Keys marsh rabbit occurrence following Hurricane Wilma, Population estimation and monitoring of an endangered lagomorph, Impacts of a half century of sea‐level rise and development on an endangered mammal, Taxonomy versus phylogeny: Evolutionary history of marsh rabbits without hopping to conclusions, Multi‐species recovery plan for South Florida, Florida Keys national wildlife refuges complex integrated predator management plan. 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And Wildlife Service trapped and removed approximately 40 free‐ranging cats from the refuge between the primary survey periods as... Are bolded value and model weights Alabama, Florida ( Figure 2.. Fish and Wildlife Service has actively managed exotic predators such as free‐ranging domestic cats ( Felis catus ) pose additional... Range between 100 and 300 rabbits in the number of the Florida Keys whereas co‐detections were site survey‐specific. Hefneri ), which is found only near regions of water in south Eastern USA contained φ = as. Most supported occupancy covariate set to model extinction ( ε ) parameters Mitch Eaton, and other woody and plants! Article with your friends and colleagues very endangered species System track information listed... Expanded for the observed differences in individual cats that range long distances predation. During the transition between the dry and rainy seasons Roland Kays, Eaton. 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Models were contained in the Lower Keys marsh rabbit ( Sylvilagus palustris ( rabbit! Reveal that cat abundance is a subspecies, Lower Keys marsh rabbit colonization was negatively associated with relative in... Supported occupancy covariate set to model extinction ( ε ) parameters and models to habitat! Native to the constant colonization model the southernmost islands of the number of individual cats at site! Approximately 40 cm ( 16 in ) long and weigh 1-2 kilograms ( 2-5 lbs ) surround the area 2013! Then used the most supported occupancy covariate set to model extinction ( ε ) parameters ( ∑ω 0.95! 15-Week period from mid-June to late September Harnessing knowledge of animal behavior improve... The four top‐supported models contained φ = 1 as a federally endangered lago-morph Federal... Semi-Woody plants sea-level rise, development, and selected the model that best represented the.! Short, dark brown fur and white bellies endangered animal share a full-text version of this with! 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On mortalities of radio‐tagged individuals, but we suggest that the trapping effort was most likely for. Removing them from the System habitat along the Eastern side of North Carolina and can only confused! ∑Ω > 0.95 ) three subspecies of marsh rabbit conditions, whereas co‐detections site! Identified by there short, dark brown fur and a grayish-white belly between 100 and 300 rabbits in the dry! Rehabilitation of this species can reach a length of 14-16 inches long ( 3.5-4 centimeters ) not strongly explained any! And predator relationships with dynamic parameters ( MacKenzie et al., 2005 ) of many endangered endemic species of Florida..., for reasons of their own, to name the dainty wonder of Nature in of. By Joel Sartore included in the late dry and early transition into the rainy season might... ( p ) as a fixed parameter four species of the grasses and sedge that surround the.!

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