Why should we care about soil fauna?
... surface litter and soil organic matter dynamics – all the attributes that we associate with the importance of earthworm activities. However, grass production was significantly higher in the plots without earthworms, because the soil structure and fertility were not a constraint to herbage production ...
... surface litter and soil organic matter dynamics – all the attributes that we associate with the importance of earthworm activities. However, grass production was significantly higher in the plots without earthworms, because the soil structure and fertility were not a constraint to herbage production ...
Inter- and intraspecific parasitism interactions
... Rp = (λ*ƒa*La) * (β*N*ƒi*Li ) Hence, disease control measures are usually aimed directly at reducing the numbers of vectors, and only indirectly at the parasite. This reduces the likelihood that the final host (e.g. man) will get infected, so less direct treatments of the parasite in the final host ...
... Rp = (λ*ƒa*La) * (β*N*ƒi*Li ) Hence, disease control measures are usually aimed directly at reducing the numbers of vectors, and only indirectly at the parasite. This reduces the likelihood that the final host (e.g. man) will get infected, so less direct treatments of the parasite in the final host ...
Do Polymorphic Female Brown Anoles (Anolis sagrei) Differ in
... Within polymorphic species, not all populations exhibit FPP (Paemelaere, 2010). Also, demonstrated correlations vary within polymorphic populations. For example, Calsbeek et al. (2008) found that A. sagrei morphs on Great Exuma did not differ in snout–vent length (SVL), but Calsbeek et al. (2010) fo ...
... Within polymorphic species, not all populations exhibit FPP (Paemelaere, 2010). Also, demonstrated correlations vary within polymorphic populations. For example, Calsbeek et al. (2008) found that A. sagrei morphs on Great Exuma did not differ in snout–vent length (SVL), but Calsbeek et al. (2010) fo ...
Contribution of predation and parasitism to mortality of citrus
... A single female of P. citrella could deposit 48 (Pandey and Pandey, 1964) to 75 (Margaix et al., 1998) eggs. Male and female pupae were separated according to Jacas and Garrido (1996) and were kept separately in two small tubes for adult emergence at 25 °C. Adults were fed with honey solution for 24 ...
... A single female of P. citrella could deposit 48 (Pandey and Pandey, 1964) to 75 (Margaix et al., 1998) eggs. Male and female pupae were separated according to Jacas and Garrido (1996) and were kept separately in two small tubes for adult emergence at 25 °C. Adults were fed with honey solution for 24 ...
Agents of Pattern Formation: Disturbance Regimes
... < vegetation management practices, such as dispersed (or staggered setting) clearcutting, can introduce novel spatial patterns to the landscape, modifying the composition and configuration of habitats for organisms. < humans often introduce novel disturbances such as fire to landscapes that have not ...
... < vegetation management practices, such as dispersed (or staggered setting) clearcutting, can introduce novel spatial patterns to the landscape, modifying the composition and configuration of habitats for organisms. < humans often introduce novel disturbances such as fire to landscapes that have not ...
Ecological Influences of Canis lupus arctos and Canis lupus of
... arctic wolves (above 67* lat.) and the gray wolves of Yellowstone allowed for the opportunity to research the differences of wolves’ behavioral differences and environmental effects caused by their differing habitats and resource availabilities. Although these two species of wolves may seem somewhat ...
... arctic wolves (above 67* lat.) and the gray wolves of Yellowstone allowed for the opportunity to research the differences of wolves’ behavioral differences and environmental effects caused by their differing habitats and resource availabilities. Although these two species of wolves may seem somewhat ...
detailed description - University of Victoria
... What is needed now is a comprehensive documentation of the Lacandon traditional ecological knowledge that preserves this knowledge and can be used as a resource for the Lacandon community and as a source of information to guide conservation, land management and restoration efforts in the Selva Lacan ...
... What is needed now is a comprehensive documentation of the Lacandon traditional ecological knowledge that preserves this knowledge and can be used as a resource for the Lacandon community and as a source of information to guide conservation, land management and restoration efforts in the Selva Lacan ...
Invisible invaders: non-pathogenic invasive microbes in aquatic and
... and might re-organize in the face of global environmental change. The rapidly evolving field of microbial ecology investigates and applies general ecological principles to microbial systems and is a cornerstone for studying microbes in ecosystems. Ecological studies of microbes cover many exciting t ...
... and might re-organize in the face of global environmental change. The rapidly evolving field of microbial ecology investigates and applies general ecological principles to microbial systems and is a cornerstone for studying microbes in ecosystems. Ecological studies of microbes cover many exciting t ...
Observations on the Endemic Pygmy Three
... These carcasses were still fully intact, suggesting that they were not killed by predation. If so, these observations lead us to suspect a high rate of death through disease, habitat loss, or natural causes in the population of B. pygmaeus. As an insular endemic species, B. pygmaeus may be adapted t ...
... These carcasses were still fully intact, suggesting that they were not killed by predation. If so, these observations lead us to suspect a high rate of death through disease, habitat loss, or natural causes in the population of B. pygmaeus. As an insular endemic species, B. pygmaeus may be adapted t ...
Reducing Domestic and Feral Cat Predation
... liability or blame for damages to any person or business entity because of using this website, its information or any website linked to it. This guide is meant to complement but not replace other existing resources, including the BC Ministry of Environment’s Develop with Care series and Best Manag ...
... liability or blame for damages to any person or business entity because of using this website, its information or any website linked to it. This guide is meant to complement but not replace other existing resources, including the BC Ministry of Environment’s Develop with Care series and Best Manag ...
Phillips et al.
... of two exotic consumers, the predatory and herbivorous signal crayfish ( Pacifastacus leniusculus) and the predatory rainbow trout (Oncorhynchus mykiss), on multiple trophic levels of a pond community. The goals were to: (1) determine the individual and combined effects of predators on macroinverteb ...
... of two exotic consumers, the predatory and herbivorous signal crayfish ( Pacifastacus leniusculus) and the predatory rainbow trout (Oncorhynchus mykiss), on multiple trophic levels of a pond community. The goals were to: (1) determine the individual and combined effects of predators on macroinverteb ...
Workshop: Ecology of Glacier Forelands - MUSE
... Since the Little Ice Age (LIA) maximum extent around 1850 the glaciers of the Alps lost more than half of their respective area. The bare ground exposed is subsequently available for colonization by plants. Due to the specific site conditions (e.g. katabatic winds, soil frost activity, meltwater dis ...
... Since the Little Ice Age (LIA) maximum extent around 1850 the glaciers of the Alps lost more than half of their respective area. The bare ground exposed is subsequently available for colonization by plants. Due to the specific site conditions (e.g. katabatic winds, soil frost activity, meltwater dis ...
Biology of Mayflies - Ephemeroptera Galactica
... exact numberof instars has only been determined in a few species (24, 44, 57). Manyworkers have therefore distinguished developmental stages on the basis of morphological characters (77). Although these mayencompass several instars, they have proved useful in analyzing complex life cycle patterns (1 ...
... exact numberof instars has only been determined in a few species (24, 44, 57). Manyworkers have therefore distinguished developmental stages on the basis of morphological characters (77). Although these mayencompass several instars, they have proved useful in analyzing complex life cycle patterns (1 ...
Vancouver Island Marmot Population and Habitat Viability
... The Vancouver Island marmot (Marmota vancouverensis) is the rarest of the six species of marmot found in North America and is limited to the more mountainous regions of Vancouver Island, British Columbia, Canada. Its closest relatives are the Olympic marmot (M. olympus) of the Olympic Peninsula, Uni ...
... The Vancouver Island marmot (Marmota vancouverensis) is the rarest of the six species of marmot found in North America and is limited to the more mountainous regions of Vancouver Island, British Columbia, Canada. Its closest relatives are the Olympic marmot (M. olympus) of the Olympic Peninsula, Uni ...
COMMENTARY Why might they be giants? Towards an
... Like other biogeographic patterns, polar gigantism likely will defy simple explanatory frameworks. One set of theories invokes biophysical and physiological explanations; these focus on the effects of unusual levels of environmental factors in polar environments, particularly temperature, oxygen and ...
... Like other biogeographic patterns, polar gigantism likely will defy simple explanatory frameworks. One set of theories invokes biophysical and physiological explanations; these focus on the effects of unusual levels of environmental factors in polar environments, particularly temperature, oxygen and ...
Twenty-two years chairgroup
... digested, which in its turn is often limited by the amount of nitrogen available for microbial breakdown, but in non-ruminants the rate at which energy becomes available is more directly associated with the rate at which soluble or non-soluble sources of sugar become available. Van Wieren worked cl ...
... digested, which in its turn is often limited by the amount of nitrogen available for microbial breakdown, but in non-ruminants the rate at which energy becomes available is more directly associated with the rate at which soluble or non-soluble sources of sugar become available. Van Wieren worked cl ...
Sex allocation, pollen limitation and masting in whitebark pine
... This hypothesis depends on the assumption that male and female gametes are produced in the same years, that is, years in which plants produce more female flowers are also those in which they produce more pollen (Smith, Hamrick & Kramer 1990). However, many conspicuously mast-seeding plants, including ...
... This hypothesis depends on the assumption that male and female gametes are produced in the same years, that is, years in which plants produce more female flowers are also those in which they produce more pollen (Smith, Hamrick & Kramer 1990). However, many conspicuously mast-seeding plants, including ...
Environmental factors influencing asexual reproductive
... Asexual proliferation, leading to the production of genetically identical modules, or clonemates, is a component of larval or benthic phases of the life history of sorne echinoderms (Emson and Wilkie, 1980; Bosch et al., 1989; Chia and Walker, 1991; Hendler, 1991; Pearse and Cameron, 1991, Smiley et ...
... Asexual proliferation, leading to the production of genetically identical modules, or clonemates, is a component of larval or benthic phases of the life history of sorne echinoderms (Emson and Wilkie, 1980; Bosch et al., 1989; Chia and Walker, 1991; Hendler, 1991; Pearse and Cameron, 1991, Smiley et ...
Phage and bacteria support mutual diversity in a narrowing
... justified by the strong specificity of phage predation. To describe the interacting bacteria–phage ecology, we assume a well-mixed system, that is, a system where spatial fluctuations are negligible. Fluctuations in environmental conditions have been shown to permit the coexistence of a greater numb ...
... justified by the strong specificity of phage predation. To describe the interacting bacteria–phage ecology, we assume a well-mixed system, that is, a system where spatial fluctuations are negligible. Fluctuations in environmental conditions have been shown to permit the coexistence of a greater numb ...
Theoretical ecology
Theoretical ecology is the scientific discipline devoted to the study of ecological systems using theoretical methods such as simple conceptual models, mathematical models, computational simulations, and advanced data analysis. Effective models improve understanding of the natural world by revealing how the dynamics of species populations are often based on fundamental biological conditions and processes. Further, the field aims to unify a diverse range of empirical observations by assuming that common, mechanistic processes generate observable phenomena across species and ecological environments. Based on biologically realistic assumptions, theoretical ecologists are able to uncover novel, non-intuitive insights about natural processes. Theoretical results are often verified by empirical and observational studies, revealing the power of theoretical methods in both predicting and understanding the noisy, diverse biological world.The field is broad and includes foundations in applied mathematics, computer science, biology, statistical physics, genetics, chemistry, evolution, and conservation biology. Theoretical ecology aims to explain a diverse range of phenomena in the life sciences, such as population growth and dynamics, fisheries, competition, evolutionary theory, epidemiology, animal behavior and group dynamics, food webs, ecosystems, spatial ecology, and the effects of climate change.Theoretical ecology has further benefited from the advent of fast computing power, allowing the analysis and visualization of large-scale computational simulations of ecological phenomena. Importantly, these modern tools provide quantitative predictions about the effects of human induced environmental change on a diverse variety of ecological phenomena, such as: species invasions, climate change, the effect of fishing and hunting on food network stability, and the global carbon cycle.