Search results for "territoriality"
showing 6 items of 46 documents
Landscape and anti-predation determinants of nest-site selection, nest distribution and productivity in a Mediterranean population of Long-eared Owls…
2006
Nest predation is an important determinant of owl breeding success. We studied Long-eared Owl Asio otus productivity and attributes of nest-sites at the microhabitat and landscape scales in a Mediterranean locality over an 8-year period. We examined the effect on nest location and productivity of protective cover in concealing the nest from aerial and terrestrial predators. A dense cover of ivy and tree-foliage at canopy level favoured nest location but not productivity. By contrast, high shrub cover beneath the nest was selected by Owls and was positively related to both the site reoccupancy rate and the overall number of young fledged. Pre-fledging Owls use the ground, where they are expo…
Social overwintering and food distribution in the bank vole Clethrionomys glareolus
1991
We studied overwintering in the bank vole Clethrionomys glareolus in four 0.5 ha enclosures in an abandoned field in central Finland in the winter 1987/88. In two of the enclosures food was offered evenly distributed over the whole enclosed area (Even Enclosures = EE), in the two others food was offered in one feeding patch with four feeding chambers 2 m apart (Patchy Enclosures = PE). Food was provided in about the same amount in both enclosures. The experiment commenced in early October, with 13 females and 11 males in EEs and 12 + 13 voles in PEs. After two months the voles in the PEs were concentrated around the feeding patches. Territoriality was not observed in EEs, instead the voles …
The Role of Spatial Exploration and Territoriality in Establishing Gilthead Seabream (Sparus aurata) Hierarchies, and Their Effects upon Underlying S…
2023
Territoriality, spatial exploration and social hierarchy are strictly related behaviors in gregarious fishes, and are often under-appreciated in farms where the individuals are confined within crowded spaces. In this study, we investigated the role of spatial exploration, elucidating the importance of time upon forming the social organization, and the role of the territoriality in gilthead seabream (Sparus aurata), using two experimental approaches. In the first approach, three fish were placed sequentially in the aquarium with an interval of two days (sequential model), while in the second (simultaneous model), two fish were simultaneously placed in an aquarium divided by a barrier which w…
Marine reserves : fish life history and ecological traits matter
2010
Copyright by the Ecological Society of America
Verso una geografia per la partecipazione
2018
This article introduces the contributions collected in the special issue no. 1/2018 of “geotema” and presented at the 4th Study Day on Territorial Identities (Rome, September 22nd, 2017), promoted by the homonymous research group of the A.Ge.I. (Associations of Italian Geographers). The paper aims at discussing some basic questions on participatory processes, in order to pursue four objectives: 1) to recall some of the main issues that revolve around the topic of citizen participation in territorial decision-making processes; 2) to specify the ties between territorial identity (as intended by the research group) and participatory processes; 3) to highlight the questions raised by the contri…
Polityka publiczna, zarządzanie lokalne, modele samorządu terytorialnego
2018
The implementation of public policies by the local government is connocted with new forms of management. It is a set of actions based on principles that are one of many possible criteria for typology. The models built on this basis allow for comparison of local govermments in Western and Central-Eastern Europe. We gain a picture of differences and similarities in the implementation of own tasks, the approach to the problem of deconcentration and decentralization of power, and new management at the local level aimed at optimizing the effects of public policies.