نتایج جستجو برای: settlement patterns
تعداد نتایج: 426077 فیلتر نتایج به سال:
For marine fishes with a bipartite life cycle, pelagic larval dispersal can shape the distribution, connectivity, composition and resilience of adult populations. Numerous studies of larval dispersal, and associated settlement and recruitment processes, have examined the relationship between population connectivity and oceanographic features. However, relatively little is known about spatial an...
چکیده ندارد.
The importance and strength of density dependence continues to engender debate because of its central importance to population dynamics and regulation. Here, we show how confounding effects of site quality can mask strong effects of density dependence. In particular, we explore spatio-temporal variation and covariation among (1) densities of newly settled coral reef fish (Thalassoma hardwicke),...
As nuclear families have become increasingly less stable over the past quarter century, married couples have been faced with the difficult task of negotiating the terms by which marriage is ended. For parents, divorce involves questions revolving around the care and sustenance of children. In this paper we investigate whether observed divorce settlements indicate that parents make trade-offs in...
This paper concerns two major research questions. The first is the ways in which Toronto’s social landscape throughout the past century, and especially following World War Two, has been changed by the diverse array of immigrant groups that have entered the city. For researchers and policy makers concerned with urban settlement patterns, Toronto represents a particularly intriguing study area, n...
Archaeology and indigenous history of Native Amazonian peoples in the Upper Xingu region of Brazil reveal unexpectedly complex regional settlement patterns and large-scale transformations of local landscapes over the past millennium. Mapping and excavation of archaeological structures document pronounced human-induced alteration of the forest cover, particularly in relation to large, dense late...
Spatio-temporal patterns of predator aggregations within their settlement areas (i.e. temporary settling zones used during dispersal or, more generally, foraging patches) were studied. By integrating the main behavioural rules of juveniles of Spanish imperial eagles Aquila adalberti during dispersal with the temporal availability of the eagles’ main prey, we have developed several individual-ba...
Information about dispersal scales of fish at various life history stages is critical for successful design of networks of marine protected areas, but is lacking for most species and regions. Otolith chemistry provides an opportunity to investigate dispersal patterns at a number of life history stages. Our aim was to assess patterns of larval and post-settlement (i.e. between settlement and rec...
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