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Towards a framework for assessment and management of
... for acidification, presented a high variation in their impacts across functional compartments, possibly reflecting limited available information. The majority of food web components were most vulnerable to broad-scale irreversible coastal construction, such as ports, except for carnivores and omnivo ...
... for acidification, presented a high variation in their impacts across functional compartments, possibly reflecting limited available information. The majority of food web components were most vulnerable to broad-scale irreversible coastal construction, such as ports, except for carnivores and omnivo ...
The role of highly mobile crab predators in the intertidal zonation of
... by competition and predation. Lack of recruitment of planktonic propagules could also play a role (Underwood and Denley, 1984). Given this caveat, it does appear that predation by slow moving starfish and gastropods can determine the lower limits of distribution of sessile mussels and barnacles on w ...
... by competition and predation. Lack of recruitment of planktonic propagules could also play a role (Underwood and Denley, 1984). Given this caveat, it does appear that predation by slow moving starfish and gastropods can determine the lower limits of distribution of sessile mussels and barnacles on w ...
Community structure and functioning in intertidal rock pools: effects
... continuous variation in size parameters; hence, rather than factorial design using distinct size categories, we adopted a regression approach using continuous variation in both area and depth. Two shore heights were selected at each location, 1 toward the upper limit of barnacle distribution (‘upper ...
... continuous variation in size parameters; hence, rather than factorial design using distinct size categories, we adopted a regression approach using continuous variation in both area and depth. Two shore heights were selected at each location, 1 toward the upper limit of barnacle distribution (‘upper ...
Biome A Biome B
... This biome is said to have a Mediterranean climate. This biome covers regions of Earth that people pay big bucks to live in! The weather is always beautiful, no matter the season. This biome has mild, wet winters and warm, dry summers. In the winter, this biome typically see about 5-25 cm of precipi ...
... This biome is said to have a Mediterranean climate. This biome covers regions of Earth that people pay big bucks to live in! The weather is always beautiful, no matter the season. This biome has mild, wet winters and warm, dry summers. In the winter, this biome typically see about 5-25 cm of precipi ...
Article
... Predation effectiveness is strongly mediated by the architectural or structural complexity of habitats, which can have contrasting effects [12]: the structure can significantly lower predation risk when it serves as a refuge for prey [13] but can also increase susceptibility to predators that use st ...
... Predation effectiveness is strongly mediated by the architectural or structural complexity of habitats, which can have contrasting effects [12]: the structure can significantly lower predation risk when it serves as a refuge for prey [13] but can also increase susceptibility to predators that use st ...
evaluation of the factors that limit Olympia oyster
... To examine the role of substrate limitation, I conducted surveys at 25 haphazardly selected intertidal mudflat sites (shown as unnumbered circles in Figure 1) in Elkhorn Slough in July 2007. Each survey began with rapid 10 minute searches for oysters, followed by an estimate of the size of the searc ...
... To examine the role of substrate limitation, I conducted surveys at 25 haphazardly selected intertidal mudflat sites (shown as unnumbered circles in Figure 1) in Elkhorn Slough in July 2007. Each survey began with rapid 10 minute searches for oysters, followed by an estimate of the size of the searc ...
Colonization of artificial seagrass versus time and distance from
... densities, the dominant crustacean Cymadusa compta (Amphipoda) colonized 38 times as abundantly as the dominant gastropod, Bittium varium. We attribute this increased crustacean colonization far from grassbeds to the 'nearest refuge' hypothesis, but also suggest an alternative predation hypothesis. ...
... densities, the dominant crustacean Cymadusa compta (Amphipoda) colonized 38 times as abundantly as the dominant gastropod, Bittium varium. We attribute this increased crustacean colonization far from grassbeds to the 'nearest refuge' hypothesis, but also suggest an alternative predation hypothesis. ...
Refuges, Biological Disturbance, and Rocky Subtidal Community Structure in New... Author(s): Jon D. Witman
... Abstract. The effects of two sources of biological disturbance-predation and sea urchin grazingon the structure of benthic communities inside and outside beds of the horse mussel, Modiolus modiolus, were examined in the rocky subtidal zone off the Isles of Shoals, New Hampshire, USA. Multivariate an ...
... Abstract. The effects of two sources of biological disturbance-predation and sea urchin grazingon the structure of benthic communities inside and outside beds of the horse mussel, Modiolus modiolus, were examined in the rocky subtidal zone off the Isles of Shoals, New Hampshire, USA. Multivariate an ...
PDF-1 - RUcore
... Ducklow (1983) suggested that primarily ciliated protozoa (ubiquitous in the marine environment), within the microzooplankton (20-200 µm diameter) and nanozooplankton (2-20 µm diameter), control standing stocks and metabolic activity of bacteria – and form an important link between nanoplankton and ...
... Ducklow (1983) suggested that primarily ciliated protozoa (ubiquitous in the marine environment), within the microzooplankton (20-200 µm diameter) and nanozooplankton (2-20 µm diameter), control standing stocks and metabolic activity of bacteria – and form an important link between nanoplankton and ...
ppt檔案
... Grazing pressure by mule deer and elk was intense on their Arizona study sites. The grazers fed on nearly 75% of all plants and removed as much as 95% of the above ground biomass. When a single stalk was eaten, however, it was ...
... Grazing pressure by mule deer and elk was intense on their Arizona study sites. The grazers fed on nearly 75% of all plants and removed as much as 95% of the above ground biomass. When a single stalk was eaten, however, it was ...
Habitat Selection Among Fishes and Shrimp in the Pelagic
... different attributes of algal architecture; assemblage abundance and number of species was higher on more complex algae. Clearly, structural differences in habitat can affect species richness and diversity of epifauna (Hicks, 1985; Gee and Warwick, 1994). However, there are still studies that found ...
... different attributes of algal architecture; assemblage abundance and number of species was higher on more complex algae. Clearly, structural differences in habitat can affect species richness and diversity of epifauna (Hicks, 1985; Gee and Warwick, 1994). However, there are still studies that found ...
link to thesis - Victoria University of Wellington
... two fish species studied reduced grazer abundance. Although the second fish species did not consume grazing amphipods, its presence altered amphipod behaviour to significantly reduce grazing efficiency on the macroalgal-host. This study illustrates how density and trait-mediated indirect interaction ...
... two fish species studied reduced grazer abundance. Although the second fish species did not consume grazing amphipods, its presence altered amphipod behaviour to significantly reduce grazing efficiency on the macroalgal-host. This study illustrates how density and trait-mediated indirect interaction ...
FAU Institutional Repository
... In the absence of turbulent mixing, a detrital particle or other object moving passively upward or downward through the water column comes to rest at that level where its density is the same as that of the surrounding water. In haloclines, water density changes rapidly over a short vertical distance ...
... In the absence of turbulent mixing, a detrital particle or other object moving passively upward or downward through the water column comes to rest at that level where its density is the same as that of the surrounding water. In haloclines, water density changes rapidly over a short vertical distance ...
Mrs. Krausz`s Environmental Science: Chapter 5 Study Guide
... mountain meadow, grasshoppers and aphids eat the flowers and grasses. Ladybugs eat the aphids, and blue jays eat the grasshoppers and ladybugs. Blue jays also eat grass seeds and pine nuts and even an occasional small frog from the pond. The frogs ate algae in the pond when they were tadpoles, but n ...
... mountain meadow, grasshoppers and aphids eat the flowers and grasses. Ladybugs eat the aphids, and blue jays eat the grasshoppers and ladybugs. Blue jays also eat grass seeds and pine nuts and even an occasional small frog from the pond. The frogs ate algae in the pond when they were tadpoles, but n ...
terms of reference for the work of the w
... by the Ramsar Bureau, indicating that the new canal and water control structures were operational, allowing Danube water into Srebarna lake, and that the Dalmatian pelican nesting colony had been re-established at higher levels than before inscription of the site on the Ramsar and World Heritage li ...
... by the Ramsar Bureau, indicating that the new canal and water control structures were operational, allowing Danube water into Srebarna lake, and that the Dalmatian pelican nesting colony had been re-established at higher levels than before inscription of the site on the Ramsar and World Heritage li ...
Asian Carp Frequently Asked Questions
... dispersal barriers. There are moderately abundant populations of both species in the Marseilles Pool of the Illinois River (approximately 50 miles downstream of the dispersal barriers) and abundant population farther downstream. Reproduction has not been documented in waters upstream of Marseilles L ...
... dispersal barriers. There are moderately abundant populations of both species in the Marseilles Pool of the Illinois River (approximately 50 miles downstream of the dispersal barriers) and abundant population farther downstream. Reproduction has not been documented in waters upstream of Marseilles L ...
Red Swamp Crayfish - Germantown Executive Summary By Andrew
... Western Ave. WDNR Fisheries, Water Resources and Wildlife staff cleared a swath on both sides of the ditch to maneuver equipment. Skid loaders were used to scrape a more defined channel through the woods which would hold the majority of future water flow. Once the channel was shaped, 12 ounce road c ...
... Western Ave. WDNR Fisheries, Water Resources and Wildlife staff cleared a swath on both sides of the ditch to maneuver equipment. Skid loaders were used to scrape a more defined channel through the woods which would hold the majority of future water flow. Once the channel was shaped, 12 ounce road c ...
USGS DDS-43, Non-Native Trout
... information on approximately 95% of the lakes larger than 1 ha within their jurisdiction. Yosemite and Sequoia-Kings Canyon National Parks both had data on a large proportion of lakes within their jurisdiction, although records from Yosemite National Park were more extensive and more detailed. The ...
... information on approximately 95% of the lakes larger than 1 ha within their jurisdiction. Yosemite and Sequoia-Kings Canyon National Parks both had data on a large proportion of lakes within their jurisdiction, although records from Yosemite National Park were more extensive and more detailed. The ...
Verween et al. 2006
... past. Harbours are often difficult to sample biologically and infected industries mainly focus on destroying the species without fully identifying the species. There is no doubt about the new arrival of the species in the industrial plant of Antwerp harbour because of the ongoing monitoring study, b ...
... past. Harbours are often difficult to sample biologically and infected industries mainly focus on destroying the species without fully identifying the species. There is no doubt about the new arrival of the species in the industrial plant of Antwerp harbour because of the ongoing monitoring study, b ...
Shale Rock, South Rabbit Hills, and Fitzgerald FRF Rangeland Health Assessment
... The Long-term trend data from the allotments show adequate diversity of community structure including grasses, forbs, and shrubs appropriate for the site. This diversity ensures that the capture and storage of energy occurs throughout most of the season. Nutrient cycling is evident by litter accumu ...
... The Long-term trend data from the allotments show adequate diversity of community structure including grasses, forbs, and shrubs appropriate for the site. This diversity ensures that the capture and storage of energy occurs throughout most of the season. Nutrient cycling is evident by litter accumu ...
Protecting aquatic organisms from chemicals
... scientific discipline. Of course, gross pollution, particularly arising from disposal of untreated domestic and industrial wastes into rivers, had been occurring in industrialized countries for a century or more before specific ecotoxicological effects of chemicals were documented (see, for example, t ...
... scientific discipline. Of course, gross pollution, particularly arising from disposal of untreated domestic and industrial wastes into rivers, had been occurring in industrialized countries for a century or more before specific ecotoxicological effects of chemicals were documented (see, for example, t ...