Allometry – Relations to Energy and Abundance
... The species in assemblages are linked by interactions. Many of these are trophic interactions, indicating who eats what and thus, also, the flow of energy through the system. These feeding interactions constitute the food web and are themselves determined by the attributes of the interacting organis ...
... The species in assemblages are linked by interactions. Many of these are trophic interactions, indicating who eats what and thus, also, the flow of energy through the system. These feeding interactions constitute the food web and are themselves determined by the attributes of the interacting organis ...
Polyembryony in Armadillos - Valdosta State University
... Although this hypothesis might explain the evolution of polyembryony in many species, it does not account for all of them. In the remaining cases, Craig and his colleagues proposed that polyembryony might be favored as a means of increasing the number of offspring when sperm are limited or there are ...
... Although this hypothesis might explain the evolution of polyembryony in many species, it does not account for all of them. In the remaining cases, Craig and his colleagues proposed that polyembryony might be favored as a means of increasing the number of offspring when sperm are limited or there are ...
Spatial patterns of an endemic Mediterranean palm recolonizing old
... Throughout Europe, increased levels of land abandonment lead to (re)colonization of old lands by forests and shrublands. Very little is known about the spatial pattern of plants recolonizing such old fields. We mapped in two 21–22-ha plots, located in the Doñana National Park (Spain), all adult indi ...
... Throughout Europe, increased levels of land abandonment lead to (re)colonization of old lands by forests and shrublands. Very little is known about the spatial pattern of plants recolonizing such old fields. We mapped in two 21–22-ha plots, located in the Doñana National Park (Spain), all adult indi ...
MODELING CARNIVORE HABITAT IN THE ROCKY MOUNTAIN
... broad-scale approach. Our goal is to conduct a spatially-explicit multi-species evaluation that will identify the habitat necessary for the viability of carnivore populations. Although the ultimate factor determining population viability is human attitude, biological analysis has an important proxim ...
... broad-scale approach. Our goal is to conduct a spatially-explicit multi-species evaluation that will identify the habitat necessary for the viability of carnivore populations. Although the ultimate factor determining population viability is human attitude, biological analysis has an important proxim ...
toward an ecological classification of soil bacteria
... found in soil, we are largely unable to interpret this information in an ecological context, including which groups of bacteria are most abundant in different soils and why. With this study, we examined how the abundances of major soil bacterial phyla correspond to the biotic and abiotic characteris ...
... found in soil, we are largely unable to interpret this information in an ecological context, including which groups of bacteria are most abundant in different soils and why. With this study, we examined how the abundances of major soil bacterial phyla correspond to the biotic and abiotic characteris ...
report - Tufts Institute of the Environment
... The fragility of corals coupled with the growing threat of human impacts has generated much interest in understanding coral reef community interactions. Therefore, the relationship between butterflyfish feeding and coral response is of paramount interest and importance to reef conservation efforts w ...
... The fragility of corals coupled with the growing threat of human impacts has generated much interest in understanding coral reef community interactions. Therefore, the relationship between butterflyfish feeding and coral response is of paramount interest and importance to reef conservation efforts w ...
fishery benefits of fully protected marine reserves: why habitat and
... of tropical grunts (Haemulidae) settle into nearshore mangrove and seagrass beds and move progressively offshore into coral reef habitats as they grow (Appeldoorn et al. [1997]). Adult migrations involve the regular movements of mature fish from place to place, often to take advantage of site-specific ...
... of tropical grunts (Haemulidae) settle into nearshore mangrove and seagrass beds and move progressively offshore into coral reef habitats as they grow (Appeldoorn et al. [1997]). Adult migrations involve the regular movements of mature fish from place to place, often to take advantage of site-specific ...
patterns of cowbird parasitism in the southern atlantic coastal plain
... mean parasitism rate was 18.2%. Considering the extent of parasitism (among studies and locations), the abundance of the hosts, and sample sizes of nests, Prairie Warblers, Hooded Warblers, Yellow-breasted Chats, and Indigo Buntings appeared to be the most important cowbird hosts in the region. The ...
... mean parasitism rate was 18.2%. Considering the extent of parasitism (among studies and locations), the abundance of the hosts, and sample sizes of nests, Prairie Warblers, Hooded Warblers, Yellow-breasted Chats, and Indigo Buntings appeared to be the most important cowbird hosts in the region. The ...
TOWARD AN ECOLOGICAL CLASSIFICATION OF SOIL BACTERIA N F ,
... found in soil, we are largely unable to interpret this information in an ecological context, including which groups of bacteria are most abundant in different soils and why. With this study, we examined how the abundances of major soil bacterial phyla correspond to the biotic and abiotic characteris ...
... found in soil, we are largely unable to interpret this information in an ecological context, including which groups of bacteria are most abundant in different soils and why. With this study, we examined how the abundances of major soil bacterial phyla correspond to the biotic and abiotic characteris ...
Reliance on trial and error signal derivation by Portia africana, an
... This in turn implies that, when practising aggressive mimicry, Portia has intimate contact with its prey’s sensory world. Portia preys on many kinds of spiders in many kinds of webs and this raises questions about the mechanisms by which Portia derives the particular signals that will be suitable i ...
... This in turn implies that, when practising aggressive mimicry, Portia has intimate contact with its prey’s sensory world. Portia preys on many kinds of spiders in many kinds of webs and this raises questions about the mechanisms by which Portia derives the particular signals that will be suitable i ...
Human Geography and Ecological Sociology
... These forces may be unseen, but they are nevertheless potent, and they are eternal’’ (ibid.: 343). Hence Goode, certainly not on purpose, limited the area of physical geography to an eternal, but all in all rather negligible, part of research on social life. In a figure of his on page 343 the importa ...
... These forces may be unseen, but they are nevertheless potent, and they are eternal’’ (ibid.: 343). Hence Goode, certainly not on purpose, limited the area of physical geography to an eternal, but all in all rather negligible, part of research on social life. In a figure of his on page 343 the importa ...
Forster and Murphy 1986
... plastic arena was reached . It did not jump but other salticids often refuse to jum p at lures or live prey when barriers of glass or plastic intervene (Forster 1979b) . Portia durbanii Peckham and Peckham : Not all Portia species make webs . A juvenile P. durbanii from South Africa (see Wanless 197 ...
... plastic arena was reached . It did not jump but other salticids often refuse to jum p at lures or live prey when barriers of glass or plastic intervene (Forster 1979b) . Portia durbanii Peckham and Peckham : Not all Portia species make webs . A juvenile P. durbanii from South Africa (see Wanless 197 ...
Redacted for privacy - H.J. Andrews Experimental Forest
... Edge effects resulting from forest fragmentation are likely to alter the distributions and interactions of resident species. I evaluated changes in species composition, species turnover, and relative abundance of ground arthropods across replicated transects extending from regenerating clearcuts int ...
... Edge effects resulting from forest fragmentation are likely to alter the distributions and interactions of resident species. I evaluated changes in species composition, species turnover, and relative abundance of ground arthropods across replicated transects extending from regenerating clearcuts int ...
relation between filtering rate, temperature, and body size in four
... at 20C (Burns and Rigler 1967). On the assumption that this concentration would be below an incipient limiting conccntration for the other species of Daphnia, comparable in body size to D. rosea, used in these experiments, all measurements of filtering rate were carried out in the light in a suspens ...
... at 20C (Burns and Rigler 1967). On the assumption that this concentration would be below an incipient limiting conccntration for the other species of Daphnia, comparable in body size to D. rosea, used in these experiments, all measurements of filtering rate were carried out in the light in a suspens ...
Species richness and evenness respond in a
... studies on organisms with divergent ecological and evolutionary backgrounds (Buzas and Hayek 1996; Bell 2000; Stirling and Wilsey 2001; Mouillot et al. 2005; Wilsey et al. 2005). Hill (1973) hypothesized that richness fundamentally regulates variation in evenness and diversity statistics. In this ca ...
... studies on organisms with divergent ecological and evolutionary backgrounds (Buzas and Hayek 1996; Bell 2000; Stirling and Wilsey 2001; Mouillot et al. 2005; Wilsey et al. 2005). Hill (1973) hypothesized that richness fundamentally regulates variation in evenness and diversity statistics. In this ca ...
Peppered Moth Simulation
... The economic changes known as the industrial revolution began in the middle of the eighteenth century. Since then, tons of soot have been deposited on the country side around industrial areas. The soot discoloured and generally darkened the surfaces of trees and rocks. In 1848, a darkcoloured moth ...
... The economic changes known as the industrial revolution began in the middle of the eighteenth century. Since then, tons of soot have been deposited on the country side around industrial areas. The soot discoloured and generally darkened the surfaces of trees and rocks. In 1848, a darkcoloured moth ...
Vitaly V. Ganusov Curriculum vitae General information Academic
... 1. Course “Calculus for Life Sciences” (MATH 151: Spring 2013, UTK, Knoxville, TN). In this 11 student course I used active learning room environment and flipped format of the course to promote group discussions/problem solving. 2. Course “Introductory Immunology” (MICRO 330: Fall 2014, UTK, Knoxvil ...
... 1. Course “Calculus for Life Sciences” (MATH 151: Spring 2013, UTK, Knoxville, TN). In this 11 student course I used active learning room environment and flipped format of the course to promote group discussions/problem solving. 2. Course “Introductory Immunology” (MICRO 330: Fall 2014, UTK, Knoxvil ...
. Red Swamp Crayfish, Procambarus clarkii Overview Overview
... continents except Australia and Antarctica. Populations are found in 13 different countries in Europe where it has been introduced for aquaculture but has escaped and become invasive. After initial sightings in the UK in 1990, breeding populations were found in five ponds in Hampstead Heath, and in ...
... continents except Australia and Antarctica. Populations are found in 13 different countries in Europe where it has been introduced for aquaculture but has escaped and become invasive. After initial sightings in the UK in 1990, breeding populations were found in five ponds in Hampstead Heath, and in ...
Ecological functioning of bacterial chitinases in soil - NIOO-KNAW
... Ecological functioning of bacterial chitinases in soil PhD thesis Yani Bai - Department of Microbial Ecology, Netherlands Institute of Ecology (NIOO-KNAW) Chitin is the second most abundant polymer in nature. In aquatic ecosystems, chitin is mainly present as part of the exoskeleton of arthropods; i ...
... Ecological functioning of bacterial chitinases in soil PhD thesis Yani Bai - Department of Microbial Ecology, Netherlands Institute of Ecology (NIOO-KNAW) Chitin is the second most abundant polymer in nature. In aquatic ecosystems, chitin is mainly present as part of the exoskeleton of arthropods; i ...
Universal scaling in tree and vascular plant allometry
... level of the individual influence pattern and process at larger ecological and ecosystem scales (Enquist et al. 1998). The WBE model indicates that, despite the many idiosyncratic differences observed among different kinds of organisms, most, if not all, living systems appear to obey a common set of ...
... level of the individual influence pattern and process at larger ecological and ecosystem scales (Enquist et al. 1998). The WBE model indicates that, despite the many idiosyncratic differences observed among different kinds of organisms, most, if not all, living systems appear to obey a common set of ...
Reef Fishes at All Trophic Levels Respond Positively to
... Department of Environment, Costa Rica Sistema Nacional de Areas de Conservacion, Galapagos National Parks Service, NSW Department of Primary Industries, New Zealand Department of Conservation, Panama Autoridad Nacional del Ambiente, Parks Victoria, Parques Nacionales Naturales de Colombia, Rottnest ...
... Department of Environment, Costa Rica Sistema Nacional de Areas de Conservacion, Galapagos National Parks Service, NSW Department of Primary Industries, New Zealand Department of Conservation, Panama Autoridad Nacional del Ambiente, Parks Victoria, Parques Nacionales Naturales de Colombia, Rottnest ...
- New Zealand Ecological Society
... clearance, and predation and competition from introduced European mammals. Some forest bird species have continued to decline since 1986, while others have increased, usually after intensive species-specific research and management programmes. In this paper, we review what is known about major cause ...
... clearance, and predation and competition from introduced European mammals. Some forest bird species have continued to decline since 1986, while others have increased, usually after intensive species-specific research and management programmes. In this paper, we review what is known about major cause ...
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.