Predator interactions, mesopredator release and biodiversity
... extinction of some prey, especially those that are susceptible because they have low population growth rates or live in situations that leave them exposed to attack by mesopredators (Courchamp et al. 1999). Mesopredator release is therefore important not only for our understanding of how complex foo ...
... extinction of some prey, especially those that are susceptible because they have low population growth rates or live in situations that leave them exposed to attack by mesopredators (Courchamp et al. 1999). Mesopredator release is therefore important not only for our understanding of how complex foo ...
A review of factors limiting recovery of Pacific herring stocks in Canada
... relative importance of predation (top-down) vs. food supply (bottom-up) in regulating ecosystems may be a function of the latitude and the complexity of the system (Frank et al., 2007). The ability of a population to recover from overexploitation will depend on the complex interplay of a number of f ...
... relative importance of predation (top-down) vs. food supply (bottom-up) in regulating ecosystems may be a function of the latitude and the complexity of the system (Frank et al., 2007). The ability of a population to recover from overexploitation will depend on the complex interplay of a number of f ...
Strategy shifts in leaf physiology, structure and nutrient
... area (SLA), and leaf nitrogen (N) and phosphorus (P) across 79 perennial species occurring at four sites with contrasting rainfall levels and soil nutrients in eastern Australia. We hypothesized that the slope of log–log ‘scaling’ relationships between these traits would be positive and would not di ...
... area (SLA), and leaf nitrogen (N) and phosphorus (P) across 79 perennial species occurring at four sites with contrasting rainfall levels and soil nutrients in eastern Australia. We hypothesized that the slope of log–log ‘scaling’ relationships between these traits would be positive and would not di ...
Trophic polymorphism in a terrestrial salamander John C. Maerz,
... where morphs are easily distinguished, and readily accept that those polymorphisms are adaptive (Skúlason and Smith, 1995; Smith and Skúlason, 1996). Less appreciated but potentially more common are cases of trophic polymorphism where phenotypes cannot easily be distinguished and show a continuous, ...
... where morphs are easily distinguished, and readily accept that those polymorphisms are adaptive (Skúlason and Smith, 1995; Smith and Skúlason, 1996). Less appreciated but potentially more common are cases of trophic polymorphism where phenotypes cannot easily be distinguished and show a continuous, ...
A Sensitive Ecosystem Guide - Salt Spring Island Conservancy
... stands may include deciduous tree species making up 25% of the canopy cover. Where are Mature Forest Ecosystems located? Mature forest ecosystems are often found in areas surrounding or bordering other sensitive ecosystems such as old forests and wetlands. Mature forests serve as buffers for these s ...
... stands may include deciduous tree species making up 25% of the canopy cover. Where are Mature Forest Ecosystems located? Mature forest ecosystems are often found in areas surrounding or bordering other sensitive ecosystems such as old forests and wetlands. Mature forests serve as buffers for these s ...
distribution, abundance, and recruitment of soft
... ’Scripps Instltution of Oceanography, Umversiiy of California San Diego, La Jolla, CA 92093 ‘Southern California Coastal Water Resedr‘h Project 646 West Pacific coast Highway Long Beach, CA 90806 [Manuscnpt received 20 February 1980 I ...
... ’Scripps Instltution of Oceanography, Umversiiy of California San Diego, La Jolla, CA 92093 ‘Southern California Coastal Water Resedr‘h Project 646 West Pacific coast Highway Long Beach, CA 90806 [Manuscnpt received 20 February 1980 I ...
Characteristics of fish fauna of the Macintyre and Dumaresq Rivers
... perch (Bidyanus bidyanus) are rare species in both river systems. On the other hand, gudgeons (Hypseletoris sp.), Murray River rainbow fish (Melanotaenia fluviatilis) and Darling hardyhead (Craterocephalus amniculus) are all relatively abundant in the Border Rivers region. Other species have variabl ...
... perch (Bidyanus bidyanus) are rare species in both river systems. On the other hand, gudgeons (Hypseletoris sp.), Murray River rainbow fish (Melanotaenia fluviatilis) and Darling hardyhead (Craterocephalus amniculus) are all relatively abundant in the Border Rivers region. Other species have variabl ...
Tropical tadpole assemblages: which factors affect their structure
... have relatively more tadpole species than semipermanent or permanent ones (Gascon 1991, Peltzer & Lajmanovich 2004, Both et al. 2009). Richness may also correlate with pond size both positively (Peltzer & Lajmanovich 2004), or negatively (Gascon 1991, Moreira et al. 2010). The composition of tadpole ...
... have relatively more tadpole species than semipermanent or permanent ones (Gascon 1991, Peltzer & Lajmanovich 2004, Both et al. 2009). Richness may also correlate with pond size both positively (Peltzer & Lajmanovich 2004), or negatively (Gascon 1991, Moreira et al. 2010). The composition of tadpole ...
Pattern of Distribution and Effects on the Seagrass Life History
... unable to colonize Posidonia leaves. Thus epiphyte distribution across depth can be attributed to environmental changes in light. Moreover, individuals with higher epiphyte coverage have lower flowering occurrences compared to those with lower epiphytes. These results indicate an adverse effect on t ...
... unable to colonize Posidonia leaves. Thus epiphyte distribution across depth can be attributed to environmental changes in light. Moreover, individuals with higher epiphyte coverage have lower flowering occurrences compared to those with lower epiphytes. These results indicate an adverse effect on t ...
Evaluating the role of the dingo as a trophic
... Abstract The importance of strongly interactive predators has been demonstrated in many ecosystems, and the maintenance or restoration of species interactions is a major priority in the global conservation of biodiversity. By limiting populations of prey and/or competitors, apex predators can increa ...
... Abstract The importance of strongly interactive predators has been demonstrated in many ecosystems, and the maintenance or restoration of species interactions is a major priority in the global conservation of biodiversity. By limiting populations of prey and/or competitors, apex predators can increa ...
WETLANDS
... Among the smaller mammals living around the marsh are shrews, lemmings, voles, muskrats and beavers. Predators include mink, otters, bobcats and the elusive cougar and grey fox. But wetlands are especially a boon for birds. More than 100 species inhabit or make use of Canada’s marshes, swamps and sl ...
... Among the smaller mammals living around the marsh are shrews, lemmings, voles, muskrats and beavers. Predators include mink, otters, bobcats and the elusive cougar and grey fox. But wetlands are especially a boon for birds. More than 100 species inhabit or make use of Canada’s marshes, swamps and sl ...
fulltext
... The authors also acknowledged that various types of IGP arise from different constellations: omnivorous IGP from size selective feeding, coincidental IGP from ingesting food with inhabitants, miscellaneous IGP from ”accidental” feeding, asymmetric IGP when only one preys on the other, and symmetric ...
... The authors also acknowledged that various types of IGP arise from different constellations: omnivorous IGP from size selective feeding, coincidental IGP from ingesting food with inhabitants, miscellaneous IGP from ”accidental” feeding, asymmetric IGP when only one preys on the other, and symmetric ...
Heritage 386 D.C. FOR
... their populations in the Stanislaus, Tuolumne, and Merced rivers. This indicates that the main causes of recent decline are outside the spawning and rearing areas and are most likely within the estuary. NHI has not yet developed a petition for listing this run, in part because of the intensified eff ...
... their populations in the Stanislaus, Tuolumne, and Merced rivers. This indicates that the main causes of recent decline are outside the spawning and rearing areas and are most likely within the estuary. NHI has not yet developed a petition for listing this run, in part because of the intensified eff ...
COMMENTARY Why might they be giants? Towards an
... are home to a fauna that is rich and often strange. In terms of multiple metrics, conditions in polar oceans are extreme. Polar oceans are the coldest large bodies of water on earth, with temperatures at the freezing point of seawater (–1.8°C) during winter in the Arctic and year-round near the cont ...
... are home to a fauna that is rich and often strange. In terms of multiple metrics, conditions in polar oceans are extreme. Polar oceans are the coldest large bodies of water on earth, with temperatures at the freezing point of seawater (–1.8°C) during winter in the Arctic and year-round near the cont ...
The rapid spread of rusty crayfish (Orconectes rusticus) with
... much of Illinois, Michigan, Wisconsin, and Minnesota and parts of 11 other states, Ontario and the Laurentian Great Lakes (Hobbs et al. 1989; Lodge et al. 2000a). The invasion dynamics of rusty crayfish and its ecological impacts have been most intensively studied in lakes and streams of northern Wis ...
... much of Illinois, Michigan, Wisconsin, and Minnesota and parts of 11 other states, Ontario and the Laurentian Great Lakes (Hobbs et al. 1989; Lodge et al. 2000a). The invasion dynamics of rusty crayfish and its ecological impacts have been most intensively studied in lakes and streams of northern Wis ...
Options and limitations of statistical modelling as a tool for
... a sediment grain size gradient in six different salinity classes in the North Sea and the Baltic Sea. Note that the y-axis had to be cut in some cases due to outliers (species photo: IOW). ..................................................................................................... 29 Figure ...
... a sediment grain size gradient in six different salinity classes in the North Sea and the Baltic Sea. Note that the y-axis had to be cut in some cases due to outliers (species photo: IOW). ..................................................................................................... 29 Figure ...
Plant growth at elevated CO2
... increase of CO2 in the atmosphere than C3 species. Other species, like cacti, take up CO2 from the air during the night but actually incorporate that carbon into carbohydrates during the day (crassulacean acid metabolism (CAM) species). The C3 species respond most strongly to elevated CO2 , with an ...
... increase of CO2 in the atmosphere than C3 species. Other species, like cacti, take up CO2 from the air during the night but actually incorporate that carbon into carbohydrates during the day (crassulacean acid metabolism (CAM) species). The C3 species respond most strongly to elevated CO2 , with an ...
Theoretical Predictions for How Temperature Affects
... strongly influenced by environmental (water) temperature. For endotherms, variation in body temperature is highly constrained. For terrestrial and intertidal organisms, body temperatures can be decoupled from environmental temperatures (Helmuth 1998), and these relationships need to be known to rela ...
... strongly influenced by environmental (water) temperature. For endotherms, variation in body temperature is highly constrained. For terrestrial and intertidal organisms, body temperatures can be decoupled from environmental temperatures (Helmuth 1998), and these relationships need to be known to rela ...
Climate Change and Invasibility of the Antarctic Benthos
... thereby changing trophic relationships and homogenizing biotas (Stachowitz et al. 2002). Because organisms in polar regions are adapted to the coldest temperatures and most intense seasonality of resource supply on Earth (Peck et al. 2006), polar species and the communities they comprise are especia ...
... thereby changing trophic relationships and homogenizing biotas (Stachowitz et al. 2002). Because organisms in polar regions are adapted to the coldest temperatures and most intense seasonality of resource supply on Earth (Peck et al. 2006), polar species and the communities they comprise are especia ...
BioMath Food Webs Student
... The process begins with a real-world situation, such as the feeding relationships in a community. But after a model is built, analyzed, and tested, it is often necessary to revise the model in order to better explain the problem. In other words, when you look at the results of the model you may find ...
... The process begins with a real-world situation, such as the feeding relationships in a community. But after a model is built, analyzed, and tested, it is often necessary to revise the model in order to better explain the problem. In other words, when you look at the results of the model you may find ...
Effects of interspecific competition, predation, and their interaction
... surface of the water column (O’Malley 1992). As such, they are likely to compete for resources with several cooccurring species. Two primary groups of potential mosquito competitors include: (1) cladoceran zooplankton that filter algae and microbes from the water column, which likely limits their ab ...
... surface of the water column (O’Malley 1992). As such, they are likely to compete for resources with several cooccurring species. Two primary groups of potential mosquito competitors include: (1) cladoceran zooplankton that filter algae and microbes from the water column, which likely limits their ab ...
