The majority of marine invertebrates produce dispersive larvae which, in order to complete their life cycles, must attach and metamorphose into benthic forms. This process, collectively referred to as settlement, is often guided by habitat-specific cues. While the sources of such cues are well known, the links between their biological activity, chemical identity, presence and quantification in ...

extended abstract 1. introduction earthquake is one of the most important factors in vulnerability of rural areas in iran, which particularly due to shallow epicenter, causes a lot of damage. in addition to the absolute and relative position of different parts of the country, rupture of spatial organization and the lack of hierarchy based on interactive relationship among settlements, are ackno...

Актуальность темы опорного каркаса определяется тем обстоятельством, что совершенствование и укрепление каркаса, учитывая огромный размер территории РФ - одно из ведущих направлений улучшения пространственной организации населения экономики России. Особенно актуально изучение развития областей Центральной России, в связи с обсуждением новой идеологии пространственного ориентированной на формиро...

Barnacle cyprids exhibit a complex swimming and exploratory behaviour on surfaces and settlement is a consequence of extensive surface probing and selection of suitable settlement sites. In this work, the behaviour of cyprids in their pre-settlement phase was studied by three-dimensional video stereoscopy. With this technique, three-dimensional trajectories were obtained that were quantitativel...

Many workers have examined the processes influencing the recruitment of temperate marine invertebrates but comparatively little is kno'ivn about their tropical counterparts. Brachyuran crustaceans are important constituents of coral reefs, yet remain largely under-studied To examine the temporal patterns of tropical brachyuran larval abundances and postlarval settlement, we deployed 3 replicate...

Abst rac t Balanus subalbidus (Henry) has the most oligohaline distribution of three congeneric barnacles in Chesapeake Bay and tolerates prolonged exposure to fresh water. We studied larval settlement (i.e., permanent attachment and metamorphosis) of B. subalbidus in the laboratory, over a 3 yr period, May 1989 to March 1992, under the following conditions: (1) across an array of salinities at...

Archaeological settlement systems are usually analysed in terms of the relation between the rank of a settlement and its size (Zipf’s law). We argue that this approach is unreliable, and can be misleading, in application to archaeological data where the recovery rate of settlements can be low and their size estimates are often approximate at best. An alternative framework for the settlement dat...

This paper presents an agent-based complex system simulation of settlement structure change using methods derived from entropy maximization modeling. The approach is applied to model the movement of people and goods in urban settings to study how settlement size hierarchy develops. While entropy maximization is well known for assessing settlement structure change over different spatiotemporal s...