the objective of this study was to diagnose integrative ecological health of an urban stream,which is located in the asian temperate region. the research approach was primarily based on the index ofbiological integrity (ibi) using fish assemblage and a qualitative habitat evaluation index (qhei). and these indexes were compared with long-term conventional chemical dataset during 1996-2005. for ...

Many studies have documented habitat cascades where two co-occurring habitat-forming species control biodiversity. However, more than two habitat-formers could theoretically co-occur. We here documented a sixth-level habitat cascade from the Avon-Heathcote Estuary, New Zealand, by correlating counts of attached inhabitants to the size and accumulated biomass of their biogenic hosts. These data ...

Let us first take what is not a simple example, since it was the path along which I came to this idea of ecology : scientific practices, and more particularly physics. Physics as a practice is in dire need of a new habitat, since from its birth as the first so-called "modern science" its claims were entangled with its historical "habitat", and since those claims did survive this habitat. As a r...

Under the Resource Management Act (1991) water managers are required to promote the sustainable management of natural resources, which involves safeguarding the life supporting capacity of water and ecosystems. To help water managers give practical effect to the concept of life supporting capacity, the Ministry for the Environment (MfE) and a number of regional councils are working collaborativ...

Mitigating stream and river impairment is complex, particularly in mixed-land-use watersheds given the likelihood of integrated responses of stream restoration to coupled and ongoing terrestrial ecosystem disturbance and the need for periodic reassessment and maintenance. Traditional biological sampling (e.g., macroinvertebrate sampling or other biological indices) alone seldom identifies the c...

Process-based restoration aims to reestablish normative rates and magnitudes of physical, chemical, and biological processes that sustain river and floodplain ecosystems. Ecosystem conditions at any site are governed by hierarchical regional, watershed, and reach-scale processes controlling hydrologic and sediment regimes; floodplain and aquatic habitat dynamics; and riparian and aquatic biota....

The ability to change the physical location of objects is considered indispensable in today’s highly distributed computing world. As a direct offspring of process migration, object-oriented operating systems now offer object migration as a core mechanism. These systems usually equate migration with a change in physical location. Location is only one attribute whose changes are worth considering...

Sensor networks may be most widely used for habitat and environmental monitoring where the attached tiny sensors sample various physical phenomena. Moreover, many of the physical phenomena follow the diffusion property with distance, i.e., f(d) ∝ 1 dα , where d is the distance from the point having the maximum effect of an event, f(d) is the magnitude of the event’s effect and α is the diffusio...

Habitat-specialist species may be restricted to a narrower range of microhabitats than habitat-generalist species. We addressed this hypothesis by comparing microhabitats of two pairs of congeners that differ in habitat specificity and co-occur in one distinct habitat type, Florida rosemary scrub. We characterized microhabitats of rosemary scrub specialists, Polygonella basiramia and Lechea cer...

INTRODUCTION Habitat selection by animals has been defined as the active choice of an area from a range of alternatives in the absence of constraints (Partridge 1978). In reality, no area is free of constraints and habitat selection depends on the physical structure of the environment, the physiology of the animal, food availability and protection from predators (Ward & Lubin, 1993). There are ...