Theory predicts the evolution of alternative male social tactics when intense competition coupled with the superior competitive ability of some individuals limits access to reproductive opportunities by others. How selection has shaped alternative social tactics may be especially interesting in long-lived species where size among sexually mature males varies markedly. We conducted experimental ...

In many territorial species androgen hormones are known to increase in response to territorial intrusions as a way to adjust the expression of androgen-dependent behaviour to social challenges. The dear enemy effect has also been described in territorial species and posits that resident individuals show a more aggressive response to intrusions by strangers than by other territorial neighbours. ...

This article brings together research on territoriality and actornetwork theory in order to develop new ways of investigating the role of materiality and material design in the territorial power relations of urban public places. Using the public square as a main example, I suggest some new ways of conceptualizing the production and stabilization of territories in the everyday urban environment....

We compared the field metabolic rate (FMR) and behavior around sugar-water feeders of sympatric territorial and non-territorial hummingbirds in the Chiricahua Mountains of southeastern Arizona during July 1987 and 1989. The territorial species was the Blue-throated Hummingbird (Lampornis clemenciae; mean mass 8.77 g) and the non-territorial species the Black-chinned Hummingbird (Archilochus ale...

The territorial dimension has been gaining greater prominence on the EU agenda. Traditionally underestimated, despite the fact that the implementation of EU funds is referenced to specific territorial units, the construction of a systemized knowledge on European territorial reality was intensified in the first decade of this century and became official with the approval of the Treaty of Lisbon ...

Habitat use by the Little Blue Heron (Egretta caerulea) and discovery of feeding territoriality are discussed here. The results showed the existence of a territorial individual defending an area (2,564.46 +/- 943.56 m(2)) close to the mangrove, and non-territorial individuals (9.17 +/- 2.54) in the rest of a demarcated area (mean area for the non-territorial: 893.25 +/- 676.72). A weak positive...

Nowadays, given different definitions and conceptions on development, territorial planning lends to for various economic, social and geographical aspects, however its defensive and security perspectives have been taken into account to less extent. The present research is aimed to specify passive defense legal requirements in Territorial planning through outlining the most important rules on pas...

With Nordregio research as a strong basis, each issue will provide multiple perspectives on a specific theme of regional development. In this first issue of Nordregio News we aim to provide a better understanding of the ongoing discussion on the future European Territorial Cohesion policy; and specifically the role of the Territorial Agenda of the European Union 2020 (TA 2020). The TA 2020 was ...

We explore states’ decisions to escalate disputes over their territorial claims or settle them peacefully. We complement existing arguments by accounting for the fact that states are often simultaneously entangled in multiple territorial claims. We build on previous scholarship in positing that two states involved in a territorial dispute will act based on information they glean from each other...

In mammals, a low molecular mass protein (17-20 KDa) reported from the pheromone sources such as urine, saliva, glandular secretion, etc., as ligand-carrier (pheromone carrier) has been associated with chemo-communication. Since the preorbital gland post is one of the major pheromone sources in Indian Blackbuck, an endangered species, we assumed that it possibly contains low molecular mass prot...