Geologic 2. NSW karst environments
... the treasure chests of time enough for a person to enter. These cavernous karst environments range in size and significance from small outcrops with a few small caves and sinkholes, to karst landscapes with multiple surface features and hundreds of caves. The karst environments of NSW are amongst th ...
... the treasure chests of time enough for a person to enter. These cavernous karst environments range in size and significance from small outcrops with a few small caves and sinkholes, to karst landscapes with multiple surface features and hundreds of caves. The karst environments of NSW are amongst th ...
Management Principles and Strategies to Guide
... factors mean there will be no universal forest biodiversity conservation ‘recipes’ that can be applied uniformly and uncritically to all regions, landscapes and stands. Rather, the best and/or most appropriate strategies will vary according to particular forest management, conservation and other obj ...
... factors mean there will be no universal forest biodiversity conservation ‘recipes’ that can be applied uniformly and uncritically to all regions, landscapes and stands. Rather, the best and/or most appropriate strategies will vary according to particular forest management, conservation and other obj ...
Pumpkinseed (Lepomis gibbosus)
... 8 - Has the organism established viable (reproducing) populations anywhere outside of its native range? Response: Yes, viable populations have been established in all countries detailed in section 4 and Brazil (de Magalhães & Ratton 2005; Santos et al. 2012). Reproducing populations are known to exi ...
... 8 - Has the organism established viable (reproducing) populations anywhere outside of its native range? Response: Yes, viable populations have been established in all countries detailed in section 4 and Brazil (de Magalhães & Ratton 2005; Santos et al. 2012). Reproducing populations are known to exi ...
Recruitment facilitation can promote coexistence and buffer population growth in metacommunities
... of metacommunities. For the two-species model, we first found the equilibrium solutions of the model and determined their local stability using classical analyses. Briefly, this was done by linearising the model around each equilibrium solution, and finding the eigenvalues of the Jacobian matrix. If ...
... of metacommunities. For the two-species model, we first found the equilibrium solutions of the model and determined their local stability using classical analyses. Briefly, this was done by linearising the model around each equilibrium solution, and finding the eigenvalues of the Jacobian matrix. If ...
52 Population 07
... (b) A Daphnia population in the lab. The growth of a population of Daphnia in a small laboratory culture (black dots) does not correspond well to the logistic model (red curve). This population overshoots the carrying capacity of its artificial environment and then settles down to an approximately s ...
... (b) A Daphnia population in the lab. The growth of a population of Daphnia in a small laboratory culture (black dots) does not correspond well to the logistic model (red curve). This population overshoots the carrying capacity of its artificial environment and then settles down to an approximately s ...
This article appeared in a journal published by Elsevier. The... copy is furnished to the author for internal non-commercial research
... Nutrient enrichment Stoichiometry System stability Zooplankton mortality ...
... Nutrient enrichment Stoichiometry System stability Zooplankton mortality ...
Octopus prey interactions
... To complete our picture of predatory boring by Octopus, this study focuses on the rate and pattern of Octopus predation in pre-adult stages of Nautilus, which encompasses the first 15 years of its life. Dry shells from several natural history museum collections were used for this study. In the 555 e ...
... To complete our picture of predatory boring by Octopus, this study focuses on the rate and pattern of Octopus predation in pre-adult stages of Nautilus, which encompasses the first 15 years of its life. Dry shells from several natural history museum collections were used for this study. In the 555 e ...
A general equilibrium model for Atlantic herring
... General equilibrium model for Atlantic herring, with ecosystem considerations could be calculated. They also linked the New England coastal economy with a marine ecosystem on Georges Bank and showed changes in both coastal communities and ecosystem components that were not being consumed directly b ...
... General equilibrium model for Atlantic herring, with ecosystem considerations could be calculated. They also linked the New England coastal economy with a marine ecosystem on Georges Bank and showed changes in both coastal communities and ecosystem components that were not being consumed directly b ...
Exemplar for Internal Achievement Standard Biology Level 2
... This student has used information provided in the kite graphs to describe the findings and clearly identify a pattern in the community as zonation (1). The pattern is related to the environmental factor of tidal movement (2). How this environmental factor might affect two chosen species within the c ...
... This student has used information provided in the kite graphs to describe the findings and clearly identify a pattern in the community as zonation (1). The pattern is related to the environmental factor of tidal movement (2). How this environmental factor might affect two chosen species within the c ...
Evolution of Lake Malawi Cichlid Fishes (Perciformes: Teleostei)
... and the extreme rapidity of their divergence (< 50,000 yrs for some faunas) single out these organisms as examples of evolution in progress. Because these fishes are confined to discrete lacustrine environments and their emergence is bounded by geological features, these groups provide platforms in ...
... and the extreme rapidity of their divergence (< 50,000 yrs for some faunas) single out these organisms as examples of evolution in progress. Because these fishes are confined to discrete lacustrine environments and their emergence is bounded by geological features, these groups provide platforms in ...
Social behaviour in sharks and rays: analysis, patterns and
... descriptions of these events, many of the proximate and ultimate causes of group living in these top predators remain elusive. Given the documented negative anthropogenic effects on many shark populations globally, there is an increasing need to understand how behaviourally mediated grouping influen ...
... descriptions of these events, many of the proximate and ultimate causes of group living in these top predators remain elusive. Given the documented negative anthropogenic effects on many shark populations globally, there is an increasing need to understand how behaviourally mediated grouping influen ...
Conspicuousness-dependent antipredatory behavior may
... looked outside with the snout closer than 1 cm to the exit of the refuge) or outside the refuge, and then walked slowly, stopped close (50 cm) to each terrarium, and looked directly to the lizard during 10 s, verifying that lizards could clearly see the experimenter from their terraria. The same per ...
... looked outside with the snout closer than 1 cm to the exit of the refuge) or outside the refuge, and then walked slowly, stopped close (50 cm) to each terrarium, and looked directly to the lizard during 10 s, verifying that lizards could clearly see the experimenter from their terraria. The same per ...
Opposite relationships between invasibility and native species
... variable, and the demand by resident species determines the resource availability (Shea and Chesson 2002). Therefore, at smaller scales, a negative relationship between invasibility and native species richness is expected. Supporting this hypothesis, resource levels in small scale experiments were l ...
... variable, and the demand by resident species determines the resource availability (Shea and Chesson 2002). Therefore, at smaller scales, a negative relationship between invasibility and native species richness is expected. Supporting this hypothesis, resource levels in small scale experiments were l ...
Fishing out marine parasites? Impacts of fishing
... As fishing reduces the density of fish hosts, transmission of parasites among those hosts should decline (Fig. 1a). This linear density-dependent transmission is a key assumption of mass-action consumer–resource models, which have facilitated a great deal of progress in our understanding of the popu ...
... As fishing reduces the density of fish hosts, transmission of parasites among those hosts should decline (Fig. 1a). This linear density-dependent transmission is a key assumption of mass-action consumer–resource models, which have facilitated a great deal of progress in our understanding of the popu ...
implications of invasion by juniperus virginiana on small mammals
... 12 m). We chose this design to include spatial scale as a treatment factor in concomitant, landscape-level studies of growth and survival of eastern red cedar. In essence, we sampled locations within each of 3 distinct plant communitie.~ in a single, larger cross-timbers landscape. Replicating such ...
... 12 m). We chose this design to include spatial scale as a treatment factor in concomitant, landscape-level studies of growth and survival of eastern red cedar. In essence, we sampled locations within each of 3 distinct plant communitie.~ in a single, larger cross-timbers landscape. Replicating such ...
HELODERMA SUSPECTUM(Gila Monster). PREY
... HELODERMA SUSPECTUM (Gila Monster). PREY. Gila Monsters are specialized nest predators; their diet includes eggs of ground-nesting birds and reptiles, and juvenile mammals (e.g., Ammospermophilus leucurus, Neotoma albigula, and Sylvilagus audubonii; Beck 2005. Biology of Gila Monsters and Beaded Liz ...
... HELODERMA SUSPECTUM (Gila Monster). PREY. Gila Monsters are specialized nest predators; their diet includes eggs of ground-nesting birds and reptiles, and juvenile mammals (e.g., Ammospermophilus leucurus, Neotoma albigula, and Sylvilagus audubonii; Beck 2005. Biology of Gila Monsters and Beaded Liz ...
1. Which of the following is an example of an abiotic factor? A. the
... 51. Genetic variation among individuals of the same species enables some of these individuals to have a greater chance of obtaining resources and therefore, producing more offspring. True ...
... 51. Genetic variation among individuals of the same species enables some of these individuals to have a greater chance of obtaining resources and therefore, producing more offspring. True ...
Moose and snowshoe hare competition and a
... Summary. Moose (Alces alces) and snowshoe hare (Lepus americanus) appear to compete with each other. This was determined using t h e " natural experiments" of populations found in sympatry and allopatry on islands at Isle Royale National Park, Michigan, and manipulated exclosures. The population den ...
... Summary. Moose (Alces alces) and snowshoe hare (Lepus americanus) appear to compete with each other. This was determined using t h e " natural experiments" of populations found in sympatry and allopatry on islands at Isle Royale National Park, Michigan, and manipulated exclosures. The population den ...
Environmental filtering of crustacean zooplankton
... preferentially prey on small-bodied zooplankton species, there is evidence that they may preferentially prey on large-bodied species (Wissel and Benndorf, 1998; Pagano et al., 2003). This is be particularly true when larger chaoborids (e.g. C. trivittatus) are the dominant predators (Young and Riess ...
... preferentially prey on small-bodied zooplankton species, there is evidence that they may preferentially prey on large-bodied species (Wissel and Benndorf, 1998; Pagano et al., 2003). This is be particularly true when larger chaoborids (e.g. C. trivittatus) are the dominant predators (Young and Riess ...
University of Groningen Introduction Dennen, JMG van der
... this volume, sociobiology was defined as ‘the branch of biology that concerns itself with the explanation of social behaviour in all species, including our own. It is thus, essentially, evolutionary biology, and relies on Darwinian, Mendelian and Hamiltonian ideas – concepts such as natural selectio ...
... this volume, sociobiology was defined as ‘the branch of biology that concerns itself with the explanation of social behaviour in all species, including our own. It is thus, essentially, evolutionary biology, and relies on Darwinian, Mendelian and Hamiltonian ideas – concepts such as natural selectio ...
Spatial and Temporal Variation.
... ABSTRACT.—The diet of the Gyrfalcon (Falco rusticolus) has been studied throughout the range (Potapov and Sale 2005). The species tends to be stenophagous in the majority of the range, especially at the beginning of the breeding season. At this time, the diet is limited to the organisms which live o ...
... ABSTRACT.—The diet of the Gyrfalcon (Falco rusticolus) has been studied throughout the range (Potapov and Sale 2005). The species tends to be stenophagous in the majority of the range, especially at the beginning of the breeding season. At this time, the diet is limited to the organisms which live o ...
- Wiley Online Library
... of phyla, spanning most larval developmental modes and in both solitary and colonial organisms (see References above). Despite the substantial morphological changes and tissue reorganization that accompany the metamorphosis of most species, there are examples of these carry over effects being remark ...
... of phyla, spanning most larval developmental modes and in both solitary and colonial organisms (see References above). Despite the substantial morphological changes and tissue reorganization that accompany the metamorphosis of most species, there are examples of these carry over effects being remark ...
Pages 304-308 - KSU Web Home
... • International conservation groups saved the species from extinction - Research, education, zoos, and captive breeding programs Copyright © 2008 Pearson Education, Inc., publishing as Pearson Benjamin Cummings ...
... • International conservation groups saved the species from extinction - Research, education, zoos, and captive breeding programs Copyright © 2008 Pearson Education, Inc., publishing as Pearson Benjamin Cummings ...
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.