- Wiley Online Library
... observed the Chrysophyte Mallomonas and the Euchlorophyte Chlamydomonas. Within these species, Dinobryon, Ochromonas and Cryptomonas were the main species that might develop a phagotrophic activity. Some species could even use more than two nutrition modes such as Ochromonas which is able to practis ...
... observed the Chrysophyte Mallomonas and the Euchlorophyte Chlamydomonas. Within these species, Dinobryon, Ochromonas and Cryptomonas were the main species that might develop a phagotrophic activity. Some species could even use more than two nutrition modes such as Ochromonas which is able to practis ...
An overview of interactions among oceanography, marine
... Department of Commerce estimates its indirect impact on local economies as approximately $4.0 billion USD (figures for 1991). Clearly, marine resources are important in both hemispheres. The functioning of coastal ecosystems is inextricably linked to oceanographic processes that can vary across enor ...
... Department of Commerce estimates its indirect impact on local economies as approximately $4.0 billion USD (figures for 1991). Clearly, marine resources are important in both hemispheres. The functioning of coastal ecosystems is inextricably linked to oceanographic processes that can vary across enor ...
Migratory Animals Couple Biodiversity and Ecosystem Functioning
... insight into the consequences of rapid declines of animal migrations and the cascading effects of management actions along migratory routes. Transport and Trophic Effects of Migrants Transport Effects: Nutrients, Energy, and Toxicants Upon arrival at a site, migrants deposit nutrients, energy, and o ...
... insight into the consequences of rapid declines of animal migrations and the cascading effects of management actions along migratory routes. Transport and Trophic Effects of Migrants Transport Effects: Nutrients, Energy, and Toxicants Upon arrival at a site, migrants deposit nutrients, energy, and o ...
Herbivores, the Functional Diversity of Plants
... (1960), which divided the world into homogeneous trophic levels (decomposers, producers, consumers, and predators). Hairston et al. (1960) postulated that ``the world is green'' because predators limit the effect that herbivores have on vegetation, which in turn is limited by climate, water, or ligh ...
... (1960), which divided the world into homogeneous trophic levels (decomposers, producers, consumers, and predators). Hairston et al. (1960) postulated that ``the world is green'' because predators limit the effect that herbivores have on vegetation, which in turn is limited by climate, water, or ligh ...
Kelp Forest The Monterey Bay National Marine Sanctuary
... and more productive. El Niño and La Niña patterns directly impact the stability of kelp forests. The ocean floor in Monterey Bay NMS is mostly hard granite. Within the sanctuary, the ocean floor drops gradually at first. This shallow area is the continental shelf. As you move farther from land, the ...
... and more productive. El Niño and La Niña patterns directly impact the stability of kelp forests. The ocean floor in Monterey Bay NMS is mostly hard granite. Within the sanctuary, the ocean floor drops gradually at first. This shallow area is the continental shelf. As you move farther from land, the ...
A continent-wide assessment of the form and intensity of large
... S6 and S7; and table S6). The clearest association between an herbivome and a single HFT is the classification of the forested tropical regions as the “forest duiker herbivome,” which closely matches the area of high biomass of small nonsocial browsers (Figs. 3B and 5B). The “arid gazelle herbivome” ...
... S6 and S7; and table S6). The clearest association between an herbivome and a single HFT is the classification of the forested tropical regions as the “forest duiker herbivome,” which closely matches the area of high biomass of small nonsocial browsers (Figs. 3B and 5B). The “arid gazelle herbivome” ...
Rusty Crayfish (Orconectes rusticus)
... Rusty crayfish inhabit both pools and fast water areas of streams. They generally do not dig burrows other than small pockets under rocks and other debris, although there have been reports of more substantial burrows. Unlike some species, which dig burrows to escape ponds that are drying up or becom ...
... Rusty crayfish inhabit both pools and fast water areas of streams. They generally do not dig burrows other than small pockets under rocks and other debris, although there have been reports of more substantial burrows. Unlike some species, which dig burrows to escape ponds that are drying up or becom ...
e tutorial Botany 3rd year
... interaction between the charged substances and thereby increases their solubility. Furthermore, the polar ends of water molecules can orient themselves next to charged or partially charged groups in macromolecules, forming shells of hydration. Hydrogen bonding between macromolecules and water reduce ...
... interaction between the charged substances and thereby increases their solubility. Furthermore, the polar ends of water molecules can orient themselves next to charged or partially charged groups in macromolecules, forming shells of hydration. Hydrogen bonding between macromolecules and water reduce ...
Cattle grazing, raptor abundance and small mammal
... strip of public land running parallel to the main road crossing the valley (Fig. 1). These strips of public lands, called ‘cañadas’, were used from the Middle Ages until the 1950s for moving livestock on foot between summer and winter grasslands, being abandoned thereafter (Klein, 1979). Reafforesa ...
... strip of public land running parallel to the main road crossing the valley (Fig. 1). These strips of public lands, called ‘cañadas’, were used from the Middle Ages until the 1950s for moving livestock on foot between summer and winter grasslands, being abandoned thereafter (Klein, 1979). Reafforesa ...
Consumer versus resource control of producer producer community structure
... of these effects, although ecosystem productivity is thought to strongly influence community responses (9). Resource enrichment in unproductive environments may enhance diversity by allowing rare species to use new resources (10, 11) or persist in larger local populations that are less susceptible t ...
... of these effects, although ecosystem productivity is thought to strongly influence community responses (9). Resource enrichment in unproductive environments may enhance diversity by allowing rare species to use new resources (10, 11) or persist in larger local populations that are less susceptible t ...
Bacterial colonization and extinction on marine aggregates
... allow for extinction and recolonization, processes that cannot be assessed with the existing model. Therefore, understanding the dynamics of a particular species, such as a pathogen, requires understanding the dynamics of a multispecies community and considering the role of stochastic events. By inc ...
... allow for extinction and recolonization, processes that cannot be assessed with the existing model. Therefore, understanding the dynamics of a particular species, such as a pathogen, requires understanding the dynamics of a multispecies community and considering the role of stochastic events. By inc ...
Full text in pdf format
... an estuary are determined primarily by the longitudinal salinity profile (Remane & Schlieper 1971), a marine organism's penetration up the estuary being dependent on its tolerance to reduced salinities. The ambient salinity at any one point can also vary on a daily basis (due to tidal movement) and ...
... an estuary are determined primarily by the longitudinal salinity profile (Remane & Schlieper 1971), a marine organism's penetration up the estuary being dependent on its tolerance to reduced salinities. The ambient salinity at any one point can also vary on a daily basis (due to tidal movement) and ...
Adaptation, density dependence and the responses of trophic level
... The responses of abundances to the extrinsic per capita mortality rates are obtained by differentiating the equilibrium conditions for equations (1a–d) with respect to each of the di. The resulting formulae can be simplified somewhat by assuming that the equilibrium of the system is locally stable. ...
... The responses of abundances to the extrinsic per capita mortality rates are obtained by differentiating the equilibrium conditions for equations (1a–d) with respect to each of the di. The resulting formulae can be simplified somewhat by assuming that the equilibrium of the system is locally stable. ...
Etowah River Basin Stressors Analysis - Web8
... conditions in the Etowah, where fishes are impacted by a range of land uses, dominated by the threat of urbanization. The left side of the diagram indicates the five classes of requirements for the long-term persistence of sensitive fish: • Healthy Water. Water of the appropriate temperature, with a ...
... conditions in the Etowah, where fishes are impacted by a range of land uses, dominated by the threat of urbanization. The left side of the diagram indicates the five classes of requirements for the long-term persistence of sensitive fish: • Healthy Water. Water of the appropriate temperature, with a ...
1 – Structure and stocks of coral reef fish communities
... most coral reefs across the world are increasingly subjected to various types of human pressures [8, 14, 47], which almost always result in a decline in reef health [40]. Despite the lack of data on pristine situations, it is generally accepted that an increase in fish consumption, mainly linked to ...
... most coral reefs across the world are increasingly subjected to various types of human pressures [8, 14, 47], which almost always result in a decline in reef health [40]. Despite the lack of data on pristine situations, it is generally accepted that an increase in fish consumption, mainly linked to ...
Ecosystem Functions of Tidal Fresh, Brackish, and Salt Marshes on
... increased, while phosphorus stocks did not differ between fresh and brackish sites but were lowest at salty sites. These results generally support past speculation about ecosystem change across the estuarine gradient, emphasizing that ecosystem function in tidal wetlands changes sharply across the r ...
... increased, while phosphorus stocks did not differ between fresh and brackish sites but were lowest at salty sites. These results generally support past speculation about ecosystem change across the estuarine gradient, emphasizing that ecosystem function in tidal wetlands changes sharply across the r ...
Ecosystem Functions of Tidal Fresh, Brackish, and Salt Marshes on
... increased, while phosphorus stocks did not differ between fresh and brackish sites but were lowest at salty sites. These results generally support past speculation about ecosystem change across the estuarine gradient, emphasizing that ecosystem function in tidal wetlands changes sharply across the r ...
... increased, while phosphorus stocks did not differ between fresh and brackish sites but were lowest at salty sites. These results generally support past speculation about ecosystem change across the estuarine gradient, emphasizing that ecosystem function in tidal wetlands changes sharply across the r ...
ecology of insect communities in nontidal wetlands
... be desiccation resistant and adults are such good dispersers (see below), it is perhaps not surprising that they are often the most diverse and abundant insects in ephemeral habitats (26, 44,61, 189, 190). A second strategy that aquatic insects use to colonize wetlands involves adult immigration and ...
... be desiccation resistant and adults are such good dispersers (see below), it is perhaps not surprising that they are often the most diverse and abundant insects in ephemeral habitats (26, 44,61, 189, 190). A second strategy that aquatic insects use to colonize wetlands involves adult immigration and ...
NEGATIVE EFFECTS OF VERTEBRATE HERBIVORES ON
... jackrabbit treatment (present or absent), deer treatment (present or absent), and block (1–5) as the grouping factors. When the MANOVA produced significant treatment effects, we again proceeded with protected ANOVAs on individual response variables. Mechanisms for vertebrate effects on snails We esta ...
... jackrabbit treatment (present or absent), deer treatment (present or absent), and block (1–5) as the grouping factors. When the MANOVA produced significant treatment effects, we again proceeded with protected ANOVAs on individual response variables. Mechanisms for vertebrate effects on snails We esta ...
Estimating Relative Energy Fluxes Using the Food Web, Species
... This report proposes, evaluates, and applies some methods of estimating relative energy fluxes through the trophic links of a community food web, given the average body mass (M ) and the numerical abundance per unit of habitat (N ) of each species in the web. Previous eVorts to estimate fluxes in fo ...
... This report proposes, evaluates, and applies some methods of estimating relative energy fluxes through the trophic links of a community food web, given the average body mass (M ) and the numerical abundance per unit of habitat (N ) of each species in the web. Previous eVorts to estimate fluxes in fo ...
Does an evolutionary change in the water sowbug Asellus aquaticus
... locally in pigmentation within two Swedish lakes, Lake Tåkern and Lake Krankesjön (Hargeby et al. 2004; 2005; Eroukhmanoff et al. 2009). Both lakes have experienced periodical shift between submerged vegetation dominance and phytoplankton dominance (Blindow et al. 1993). In these lakes, isopods show ...
... locally in pigmentation within two Swedish lakes, Lake Tåkern and Lake Krankesjön (Hargeby et al. 2004; 2005; Eroukhmanoff et al. 2009). Both lakes have experienced periodical shift between submerged vegetation dominance and phytoplankton dominance (Blindow et al. 1993). In these lakes, isopods show ...
Reexamination of Pore Water Sulfide Concentrations and Redox
... zospheres associated with the extensive network of negatively geotropic pneumatophores of A. germinans reduced pore water H2S concentrations to much lower levels than that measured in adjacent unvegetated soil. In contrast, the oxidation state of the soil and pore water H2S concentrations did not ap ...
... zospheres associated with the extensive network of negatively geotropic pneumatophores of A. germinans reduced pore water H2S concentrations to much lower levels than that measured in adjacent unvegetated soil. In contrast, the oxidation state of the soil and pore water H2S concentrations did not ap ...