Couch potatoes do better: Delayed dispersal and territory size affect the duration of territory occupancy in a monogamous mammal

  title={Couch potatoes do better: Delayed dispersal and territory size affect the duration of territory occupancy in a monogamous mammal},
  author={Martin Mayer and Andreas Zedrosser and Frank Rosell},
  journal={Ecology and Evolution},
  pages={4347 - 4356}
Abstract In territorial, socially monogamous species, the establishment and defense of a territory are an important strategy to maximize individual fitness, but the factors responsible for the duration of territory occupancy are rarely studied, especially in long‐lived mammals. A long‐term monitoring program in southeast Norway spanning over 18 years allowed us to follow the individual life histories of Eurasian beavers (Castor fiber) from adolescence in their natal family group to dispersal… 
Causes and consequences of inverse density-dependent territorial behavior and aggression in a monogamous mammal.
Investigation of the behavioral and spatial response of territory owners to intruder pressure as a function of population density in a territorial, monogamous mammal, the Eurasian beaver (Castor fiber), finds consistent inverse density-dependent patterns in territorial behaviors and evidence of conspecific aggression.
Landscape structure and population density affect intraspecific aggression in beavers
It is emphasized that population density can affect intraspecific aggression depending on landscape structure, which might have important consequences for local patterns of dispersal, mate change, and territory occupancy, all of which can affect population dynamics.
Extra-territorial movements differ between territory holders and subordinates in a large, monogamous rodent
GPS-tagged 54 Eurasian beavers during the non-mating season and investigated forays in territory-holding breeders (dominants) and non-breeding family members, suggesting that forays are energetically costly.
How Do the Beaver Home Ranges Vary during the Range Expansion?
Reoccupation of European landscapes by native species causes changes in their population densities and home ranges. To test whether an increase in population density affects home range sizes, we
Aquatic habitat use in a semi-aquatic mammal: the Eurasian beaver
Background Semi-aquatic mammals exploit resources both on land and in water and may require both to meet their habitat requirements including food- and building resources, refuges, and for social
Food caching behavior of the Eurasian beaver in northern Europe
Food storage (caching, hoarding), which is observed in many species of animals, increases food availability during times of food insecurity. Both species of beaver (Eurasian beaver, Castor fiber, and
Long-term capture and handling effects on body condition, reproduction and survival in a semi-aquatic mammal
Impacts of long-term repeated capture and handling of individuals in a large semi-aquatic rodent using more than 20 years of monitoring data from a beaver population in Norway can secure the welfare of wild animal populations when planning and executing future conservation studies as well as ensure ecologically reliable research data.
Habitat conditions at beaver settlement sites: implications for beaver restoration projects
Recognition that beavers are integral components of stream ecosystems has resulted in an increase in beaver‐mediated habitat restoration projects. Beaver restoration projects are frequently
Almost faithful: SNP markers reveal low levels of extra-pair paternity in the Eurasian beavers
This poster presents a probabilistic procedure to identify the alleles responsible for Westphalian chemoreception and its importance in the establishment and management of infectious disease.
Ecological forecasts reveal limitations of common model selection methods: predicting changes in beaver colony densities
This study demonstrates the importance of evaluating ecological models and predictions with long‐term data and revealed how a known limitation of information criteria (over‐fitting of complex models) can affect the authors' interpretation of ecological dynamics.


When to leave: the timing of natal dispersal in a large, monogamous rodent, the Eurasian beaver
Territory and group sizes in Eurasian beavers (Castor fiber): echoes of settlement and reproduction?
It is argued that the settlement pattern and reproductive history have a lasting impact in the territorial system of beavers due to a combination of the low adult mortality, high dispersal costs, and avoidance of resource depletion.
Increased lifetime reproductive success for Siberian jay (Perisoreus infaustus) males with delayed dispersal
It is reported that delayed dispersal is associated with a higher lifetime individual fitness in Siberian jay (Perisoreus infaustus) males and the maintenance of this variation in the timing of dispersal and reproductive success can be reconciled with non–genetic mechanisms driving dispersal.
Occupancy as a measure of territory quality
Summary 1. Territory quality may affect individual fitness and contribute to density-dependent reproduction, with repercussions on population regulation. We investigated the probable causes and
Factors influencing territorial occupancy and reproductive output in the Booted Eagle Hieraaetus pennatus
During a 7-year research project in a forested area of southeastern Spain, a Booted Eagle Hieraaetus pennatus population was studied, finding that previous breeding success appeared to be the most important factor determining the probability of reoccupation and the reproductive output in the subsequent year.
Direct fitness benefits of delayed dispersal in the cooperatively breeding red wolf (Canis rufus)
Evidence is provided that there are direct fitness benefits to delaying dispersal in red wolves even in the absence of reproductive opportunities in the natal pack, lending support to the hypothesis that direct Fitness benefits may in themselves be sufficient to facilitate the evolution of delayed dispersal requisite to cooperatively breeding social systems.
Territory size and age explain movement patterns in the Eurasian beaver
Colonization, riparian habitat selection and home range size in a reintroduced population of European beavers in the Loire
SUMMARY 1. Colonization in a reintroduced population of European beavers in the Loire Valley was studied between 1974 and 1999. It followed a discontinuous remoteness model and a scattered
Habitat suitability and source-sink dynamics of beavers
The beaver population in Algonquin declined steadily over the study period, suggesting that spatial and demographic processes were insufficient to stabilize abundance over time, and is consistent with predictions of spatially structured models of territoriality incorporating local variation in habitat suitability.
Use of space and movement patterns in monogamous adult Eurasian beavers (Castor fiber)
The results suggest that beavers show reduced sexual dimorphism in space use and movement patterns within adult monogamous pairs.