marsh rabbit endangered

Sylvilagus palustris hefneri, also known as the Lower Keys marsh rabbit, is an endangered subspecies of marsh rabbit named after Playboy founder Hugh Hefner. It's small with short, dark brown fur and a grayish-white belly. There were 270 trapdays with free‐ranging domestic cat detections, with 163 trapdays (mean = 1.9 detections per site ±2.4SD) with detections across sites surveyed in 2013–2014 and 107 trapdays (mean = 1.27 detections per site ±2.16SD) with detections at sites surveyed in 2015. Lower Keys marsh rabbit) is endemic to the Lower Florida Keys. Marsh rabbit gestation lasts 30–37 days (Chapman & Willner, 1981), and cat gestation lasts 62–71 days (Root, Johnston, & Olson, 1995), with year‐round reproduction for both species, so the primary sampling periods meet the closure assumptions for these target species in dynamic occupancy models (MacKenzie, Nichols, Hines, Knutson, & Franklin, 2003) because births/deaths and immigration/dispersal are unlikely. Previous experiments revealed that snowshoe hare (Lepus americanus) population densities were highest in plots with reduced mammalian predator exposure and added food resources (Krebs et al., 1995), so we predicted similar patterns for marsh rabbit relationships with predators and habitat resources. Alabama, Florida, Georgia, North Carolina, South Carolina, Virginia . 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. Use the link below to share a full-text version of this article with your friends and colleagues. Fish and Wildlife Service, on Big Pine Key, Florida (Figure 2). Shrubland habitat along the Eastern Trail recently has been expanded for the endangered animal. The Lower Keys marsh rabbit (LKMR, Sylvilagus palustris hefneri), a subspecies of marsh rabbit endemic to the Lower Keys, Florida, is threatened with extinction due to … Now, only a few hundred rabbits remain on just a few of the keys, including Boca Chica, Sugarloaf and Big Pine. We also thank Roland Kays, Mitch Eaton, and Ken Pollock for sharing comments. Fish and Wildlife Service 1990). Any queries (other than missing content) should be directed to the corresponding author for the article. The Key Largo woodrat (Neotoma floridana smalli) and Key Largo cotton mouse (Peromyscus gossypinus allapaticola) are federally endangered subspecies endemic to the tropical hardwood hammocks of Key Largo, Florida. "Earth's Endangered Creatures - Lower Keys Marsh Rabbit Facts" (Online) - Licensed article from Wikipedia: The Free Encyclopedia. Select from premium Marsh Rabbit of the highest quality. As the name implies, the marsh rabbit is found only in undisturbed marsh. Endangered Marsh Rabbit update-- There are many plants and animals we are concerned about post Irma. Lower Keys marsh rabbit) is endemic to the Lower Florida Keys. The Lower Keys rabbit is the smallest of three subspecies of marsh rabbits. Cat eradication on Big Pine Key is not likely possible because many cats on the island are owned or associated with human developments and because cat eradication is difficult (Nogales et al., 2004). In 1991, there was a hig… This result warrants further study because it could signify some seasonal variation in cat movement and hence detection that we did not consider in the survey design, where cats are more detectable in early spring compared to late winter. One of these is the Lower Keys Marsh rabbit. Metapopulation Ecology and Recovery of the Endangered Lower Keys Marsh Rabbit . This species can reach a length of 14-16 inches long (3.5-4 centimeters). Michael V. Cove, NC Cooperative Fish and Wildlife Research Unit, Department of Applied Ecology, North Carolina State University, Raleigh, NC, USA. Each camera site had two opposing camera traps (Reconyx PC800 or PC850, RECONYX, Inc., Holmen WI, USA) set to provide multiple high‐quality photographs so that we could identify a high proportion of photographed animals. In a study based on rabbit pellet counts, Eaton et al. Kym Marsh and guests at the "Wallace & Gromit: The Curse of the Were-Rabbit" … The top‐supported free‐ranging cat detection model with the global occupancy parameterization suggested that free‐ranging cat detection probability was negatively related to camera locations on human trails (β = −0.63 ± 0.16SE), negatively related to camera locations in marsh rabbit habitat (β = −0.54 ± 0.15SE), and negatively related to the primary survey period occurring in 2013 (β = −1.04 ± 0.17SE), so we included those covariates in all further free‐ranging cat occupancy models. The U.S. FWS's Threatened & Endangered Species System track information about listed species in the United States. Our results suggest that while rabbits can colonize and persist at sites where cats occur, it is the number of individual cats at a site that more strongly influences rabbit occupancy and colonization. They live almost entirely within wetlands and feed off of the grasses and sedge that surround the area. We also measured habitat patch size and noted whether patches and a 100‐m surrounding buffer were considered marsh rabbit habitat or other habitats (Figure 2). Metapopulation Ecology and Recovery of the Endangered Lower Keys Marsh Rabbit . However, Schmidt et al. Endangered Lower Keys marsh rabbit (Sylvilagus palustris hefneri). Breeding occurs year-round but peaks December through June. Who wouldn't like to see a few more cottontail rabbits hopping around Scarborough Marsh? 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 Lower Keys marsh rabbit (LKMR, Sylvilagus palustris hefneri), a subspecies of marsh rabbit endemic to the Lower Keys, Florida, is threatened with extinction due to extensive coastal development of salt marsh habitats. The marsh rabbit consumes a variety of aquatic plants including marsh grass, cattail, rushes, water hyacinths, marsh pennywort, duck potato, and amaryllis. The main threats are habitat loss and fragmentation from sea‐level rise, development, and habitat succession. To Cite This Page: Glenn, C. R. 2006. The top free‐ranging cat model included a year relationship with extinction. Lower Keys Marsh Rabbit, also known as Sylvilagus palustris hefneri, is a species of the marsh rabbit and is named after the Playboy founder Hugh Hefner. Four of the eight dynamic co‐occurrence models received support as the 95% confidence set explaining variation in marsh rabbit–cat co‐occurrence dynamics (Table 3). The main threats are habitat loss and fragmentation from sea-level rise, development, and habitat succession. We measured the linear distance between the closest locations where cats were removed in 2014 and 2015 relative to our camera sites and used this measure as a continuous covariate to represent predator removal. As many as seven individual cats visited a single camera trapping site, suggesting that the potential for interactions with marsh rabbits also increases with cat abundance. Assessing Endangered Marsh Rabbit and Woodrat Habitat use and Predator Population Dynamics Feral and free-ranging domestic cats (Felis catus) have strong negative effects on wildlife, particularly in island ecosystems such as the Florida Keys. (2015) concluded that recent marsh rabbit declines in south Florida are a result of predation by exotic pythons, in spite of high habitat quality and rabbit fecundity. Current management strategies that eliminate old roads and allow mosquito ditches to fill with sediment will help restore these habitats and their hydrology, both of which will reduce saltwater retention following storm surges. Significant covariate effects and a priori predictions that correspond with estimates are bolded. Learn about our remote access options, NC Cooperative Fish and Wildlife Research Unit, Department of Applied Ecology, North Carolina State University, Raleigh, NC, USA. Human settlements are common throughout Big Pine Key and we suspected that development would affect the distribution of both species, so we measured the linear distance of all camera sites to the nearest residential development. Foods. Marsh rabbit initial occupancy was positively related to freshwater habitat (β = 3.71 ± 1.53SE) and habitat patch size (β = 1.37 ± 0.51SE), and negatively related to the number of individual free‐ranging cats identified at each site (β = −1.09 ± 0.45SE). Eastern Cottontail Rabbit vs Marsh Rabbit. We standardized all continuous covariates to z‐scores and used ArcGIS 10.0 (Environmental Systems Research Institute [ESRI], Inc., Redlands, CA, USA) for all spatial measurements and calculations. Get PDF (1 MB) Abstract. The main threats are habitat loss and fragmen - tation from sea-level rise, development, and habitat succession. Presumably trapping individual cats that range long distances reduces predation pressure in marsh rabbit habitat elsewhere on the island. The marsh rabbit is found on the Eastern side of North Carolina and can only be confused with the Eastern cottontail. 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