Nutria Survivorship, Movement Patterns, and Home Ranges

  title={Nutria Survivorship, Movement Patterns, and Home Ranges},
  author={Lauren E. Nolfo-Clements},
Abstract Sixteen Myocastor coypus (Nutria) were implanted with radiotransmitters and monitored on a freshwater floating marsh. Mortality and/or transmitter failure was high, with 5 transmitters failing or being destroyed through predation within 3 days of release. Predation mortality was common, with an additional 5 transmitters recovered from carcasses within 35 days of implantation. The remaining 6 animals survived for a mean of 182 days. After removing first movement distances from the… 
Habitat Selection by Nutria in a Freshwater Louisiana Marsh
During the colder winter months, Nutria appeared to be selecting areas with plant species that offered structure and protection from the elements as well as areas characterized by thin-mat and floating aquatic species that facilitated access to open water.
Distribution, spread and habitat preferences of nutria (Myocastor coypus) invading the lower Nakdong River, South Korea
The distribution patterns revealed that the spread of nutria from farming sites has mainly proceeded along rivers via tributaries, and important factors associated with the establishment of new populations were food availability, levees with suitable burrow materials, and slow water flow.
Spatial Movement Patterns and Local Co-Occurrence of Nutria Individuals in Association with Habitats Using Geo-Self-Organizing Map (Geo-SOM)
It was determined that males dominate nutria movement, and telemetry data from field conditions were used to identify the nearest-neighbor distances of individuals in association with environmental factors, including plant type, land cover, and biological parameters.
Genetic population structure of invasive nutria (Myocastor coypus) in Louisiana, USA: is it sufficient for the development of eradication units?
Assessment of the potential for establishing eradication units for the control of nutria in a severely impacted region of the US, southern Louisiana, using nine microsatellite loci, and systematic sampling from each of eight major watershed basins suggests neither the establishment of locally manageable eradications units, nor the development of biological control agents known for their close association with a single source population will be effective in theControl of Louisiana nutria.
The Nutria in Louisiana: A Current and Historical Perspective
Nutria is an exotic, aquatic rodent that was introduced to Louisiana wetlands during the early 1930s and can make coastal restoration more challenging. From 1960 to 1990, greater than 36-million
Invasion genetics of nutria (Myocastor coypus) in Okayama, Japan, inferred from mitochondrial and microsatellite markers
The results suggest that nutria in Okayama Plain originated from farming sites downstream in Yoshii and Takahashi Rivers and have expanded its distribution along rivers via tributaries, and Mitochondrial-nuclear discordance seems to be due to male-biased dispersal in nutria.
The potential current distribution of the coypu (Myocastor coypus) in Europe and climate change induced shifts in the near future
The coypu (Myocastor coypus) is a semi-aquatic rodent native to South America which has become invasive in Europe and other parts of the world. Although recently listed as species of European Union
Do the size and shape of spatial units jeopardize the road mortality-risk factors estimates?
Prior analysis with several sizes and shapes is needed to identify the appropriate spatial unit to model road-kill occurrence for larger vertebrates with different history traits.
Status of Nutria (Myocastor coypus) Populations in the Pacific Northwest and Development of Associated Control and Management Strategies, with an Emphasis on Metropolitan Habitats
............................................................................................................................... i Dedication
Groundhog Day animal weather forecasting ceremonies continue to proliferate around the United States despite a lack of public confidence in the oracles. This essay probes religio-historical and


Movement and Space Use by Coastal Rosy Boas (Lichanura trivirgata roseofusca) in Coastal Southern California
Individual variability in movement is more the rule than the exception and common seasonal patterns in movement and space use do exist and home-range sizes vary through time yet remain in the same general location.
Home Range, Habitat Use, and Activity of Baird's Tapir in Costa Rica1
Home range size, habitat utilization, and activity patterns of five adult Baird's tapirs were studied via radiotelemetry from June 1995 to May 1996 in Corcovado National Park, Costa Rica and showed tapirs using both primary and secondary forest habitats in proportion to their availability.
Population structure of coypus (Myocastor coypus) in their region of origin and comparison with introduced populations
The first population recapture study of indigenous coypus Myocastor Coypus is reported in protected areas of Argentine pampas within a region where the species is hunted for food and fur, consistent with local resource competition in habitat rendered low in quality by crowding inside the locally protected areas.
A lack of quantitative information on life history of the western gray squirrel (Sciurus griseus) has hampered conservation and management efforts across its range. We report on data from 21
Population parameters of indigenous populations ofMyocastor coypus: the effect of hunting pressure
The coypu or nutriaMyocastor coypus Molina, 1782 is a semiaquatic rodent intensively harvested for fur in its native region. We studied population parameters at four sites differing in hunting
Home range and movements of male feral cats (Felis catus) in a semiarid woodland environment in central Australia
Using data from the literature, it is shown that prey availability is a primary determinant of long-term home range size in feral cats.
Local determinants of coypu distribution along the Lujan River, eastcentral Argentina
Lowland prairies would provide an abundant and stable source of food to coypu, which could be used as a profitable natural resource in low productive areas of the Pampas region.
Population dynamics and regulation in the coypu Myocastor coypus in central Italy
It is shown that post-recruitment losses play only a minor role in determining population decline and pregnancy failure and new-born losses are cumulatively the most important factor contributing to variation in total mortality, and are positively related to coypu numbers in previous periods.
Annual cycle of a coypu (myocastor coypus) population: male and female strategies
The general result, of exploratory behaviour amongst males contrasting with the establishment of longer term home ranges by females, is discussed in terms of male reproductive success and the capacity for females to influence nutrient supply to their litters.
Home Range and Habitat Use of Coyotes in an Area of Native Prairie, Farmland and CRP Fields
Abstract From 1999 to 2001 we monitored 12 coyotes (Canis latrans) in northwestern Texas to determine their home ranges and habitat use in a landscape interspersed with native prairie, farmland and