Impacts of climate change on the future of biodiversity
... corresponds to less visible physiological and behavioural changes that allow species to adapt to the new climatic conditions in the same spatial and temporal frame. Spatial. First, species can track appropriate conditions in space and follow them. This is typically done through dispersion, but spati ...
... corresponds to less visible physiological and behavioural changes that allow species to adapt to the new climatic conditions in the same spatial and temporal frame. Spatial. First, species can track appropriate conditions in space and follow them. This is typically done through dispersion, but spati ...
The effect of human disturbance on the local distribution of American
... Virzi, T. 2010. The effect of human disturbance on the local distribution of American Oystercatchers breeding on barrier island beaches. Wader Study Group Bull. 117(1): 19–26. Keywords: American Oystercatcher, Haematopus palliatus, classification and regression trees, maximum entropy modeling, rando ...
... Virzi, T. 2010. The effect of human disturbance on the local distribution of American Oystercatchers breeding on barrier island beaches. Wader Study Group Bull. 117(1): 19–26. Keywords: American Oystercatcher, Haematopus palliatus, classification and regression trees, maximum entropy modeling, rando ...
Tadpoles, Predation and Pond Habitats in the Tropics
... as the predator and Bufo marinus, Srnilisca phaeota, Physalaemus pustulosus, and Hyla rosenbergi as prey. Four of the same type of trays used in the previous experiment were filled to a depth of 5 em with clear water, turbid water, clear water over a rocky bottom, or clear water over leafy substrate ...
... as the predator and Bufo marinus, Srnilisca phaeota, Physalaemus pustulosus, and Hyla rosenbergi as prey. Four of the same type of trays used in the previous experiment were filled to a depth of 5 em with clear water, turbid water, clear water over a rocky bottom, or clear water over leafy substrate ...
Transfer of fixed nitrogen to bacteria associated with filamentous
... The kelp Laminaria hyperborea forms extensive underwater forests along the Atlantic coasts of Europe. These kelp forests are hotspots for primary production and biodiversity, and many species of invertebrates, f ...
... The kelp Laminaria hyperborea forms extensive underwater forests along the Atlantic coasts of Europe. These kelp forests are hotspots for primary production and biodiversity, and many species of invertebrates, f ...
Tadpoles, Predation and Pond Habitats in the Tropics METHODS
... rosenbergi oviposits in a mud depression nest hollowed out by the males. The eggs and early larval stages are black and float in the surface film. Noble (1927) suggested that the enormous external gills of this species allow the tadpole to hold onto the surface film. During the early, external-gille ...
... rosenbergi oviposits in a mud depression nest hollowed out by the males. The eggs and early larval stages are black and float in the surface film. Noble (1927) suggested that the enormous external gills of this species allow the tadpole to hold onto the surface film. During the early, external-gille ...
Biology Unit 5 - Speedway High School
... • the atmosphere, which includes the air blanketing the surface of Earth • the geosphere, which includes all of the features of Earth’s surface and everything below the surface of Earth Biotic and abiotic factors interact in the biosphere. A change in one Earth system can affect the others. James Lo ...
... • the atmosphere, which includes the air blanketing the surface of Earth • the geosphere, which includes all of the features of Earth’s surface and everything below the surface of Earth Biotic and abiotic factors interact in the biosphere. A change in one Earth system can affect the others. James Lo ...
Shifting species interactions in terrestrial dryland ecosystems
... precipitation can alter energy and nutrient flow through food webs (Warne, Pershall & Wolf, 2010), and higher temperatures may cause extreme mortality in small birds (McKechnie & Wolf, 2010). However, other responses may be less intuitive because they result from complex interactions among species ( ...
... precipitation can alter energy and nutrient flow through food webs (Warne, Pershall & Wolf, 2010), and higher temperatures may cause extreme mortality in small birds (McKechnie & Wolf, 2010). However, other responses may be less intuitive because they result from complex interactions among species ( ...
SOUTH DElTfl UlATfR R G f ~...
... However, on the San Joaquin System, the synergism between these projects and the effect of the CVP on river inflow and quality is such that they must be addressed together. Since about 1950 the inflow of the San Joaquin River to the Delta has been, and still is being greatly reduced. There are long ...
... However, on the San Joaquin System, the synergism between these projects and the effect of the CVP on river inflow and quality is such that they must be addressed together. Since about 1950 the inflow of the San Joaquin River to the Delta has been, and still is being greatly reduced. There are long ...
Species functional redundancy, random extinctions and the stability
... 1 The level of functional redundancy in natural communities is likely to modulate how ecosystem stability is affected by local species extinction. Thus, extinction should have no effect if all species have similar functions, but a major effect if each carries different functions. 2 We provide a prob ...
... 1 The level of functional redundancy in natural communities is likely to modulate how ecosystem stability is affected by local species extinction. Thus, extinction should have no effect if all species have similar functions, but a major effect if each carries different functions. 2 We provide a prob ...
indirect interactions mediated by changing plant chemistry: beaver
... Abstract. We documented an indirect interaction between beavers ( Castor canadensis) and leaf beetles (Chrysomela confluens), mediated by changing plant chemistry of their cottonwood hosts (Populus fremontii 3 P. angustifolia). Resprout growth arising from the stumps and roots of beaver-cut trees co ...
... Abstract. We documented an indirect interaction between beavers ( Castor canadensis) and leaf beetles (Chrysomela confluens), mediated by changing plant chemistry of their cottonwood hosts (Populus fremontii 3 P. angustifolia). Resprout growth arising from the stumps and roots of beaver-cut trees co ...
Cultural Keystone Species: Implications for Ecological
... cultural identity; it may or may not be considered ecologically dominant. In this regard, cultural keystone species are not unlike “foundation species,” which have recently been defined as “... highly interactive species that are often extremely abundant or ecologically dominant ...” (Soulé et al. 2 ...
... cultural identity; it may or may not be considered ecologically dominant. In this regard, cultural keystone species are not unlike “foundation species,” which have recently been defined as “... highly interactive species that are often extremely abundant or ecologically dominant ...” (Soulé et al. 2 ...
Presentation Template
... lobster and crab fisheries. However, Alaskan crab fisheries have collapsed despite being male-only fisheries. ...
... lobster and crab fisheries. However, Alaskan crab fisheries have collapsed despite being male-only fisheries. ...
The Linkage between Conservation Strategies for Large Carnivores
... on using an infield–outfield system, where livestock were grazed and hay was collected on outfields, while manure from the livestock was used to fertilize the arable infields (Bruteig et al. 2003). Many species of plant, fungi, and insects, for example, depend on the grazing pressure to keep the lan ...
... on using an infield–outfield system, where livestock were grazed and hay was collected on outfields, while manure from the livestock was used to fertilize the arable infields (Bruteig et al. 2003). Many species of plant, fungi, and insects, for example, depend on the grazing pressure to keep the lan ...
Twenty-Five Years of Paradox in Plant-Herbivore
... for the first time, a serious challenge to their ability to understand the universe. Every time they asked nature a question in an atomic experiment, nature answered with a paradox, and the more they tried to clarify the situation, the sharper the paradoxes became. In their struggle to grasp this ne ...
... for the first time, a serious challenge to their ability to understand the universe. Every time they asked nature a question in an atomic experiment, nature answered with a paradox, and the more they tried to clarify the situation, the sharper the paradoxes became. In their struggle to grasp this ne ...
Journal of Experimental Marine Biology and Ecology
... disentangle unique and universal impact-components. For example, comparing controls to two invasive species (of relatively similar size, age and health), or two densities or size-groups (of the same species) tests for unique and universal impact-modifications, respectively. Finally, only studies that ...
... disentangle unique and universal impact-components. For example, comparing controls to two invasive species (of relatively similar size, age and health), or two densities or size-groups (of the same species) tests for unique and universal impact-modifications, respectively. Finally, only studies that ...
Molecular analysis of the diet of Gentoo penguins
... as seabirds, relies mostly in traditional invasive methods developed over 40 years ago (e.g. stomach flushing). It was only relatively recently that alternative biochemical methods, such as fatty acids signatures or stable isotopes analyses, became widespread. These have improved the knowledge of th ...
... as seabirds, relies mostly in traditional invasive methods developed over 40 years ago (e.g. stomach flushing). It was only relatively recently that alternative biochemical methods, such as fatty acids signatures or stable isotopes analyses, became widespread. These have improved the knowledge of th ...
Intraspecific variation
... genetic variation in natural populations was difficult. In the past 20 years, however, the revolution in molecular biology that has transformed much of biology has also had an impact on the study of ecology and evolution. By applying molecular technique, we can now study the interactions between eco ...
... genetic variation in natural populations was difficult. In the past 20 years, however, the revolution in molecular biology that has transformed much of biology has also had an impact on the study of ecology and evolution. By applying molecular technique, we can now study the interactions between eco ...
Potential use of energy expenditure of individual birds to assess
... From the single-species conservation viewpoint, good habitat can be regarded as one with a higher than average chance of sustaining the target species into the future. Stochastic extinctions might tend to be more common in areas with higher productivity (for example, areas with rich fluvial soils ar ...
... From the single-species conservation viewpoint, good habitat can be regarded as one with a higher than average chance of sustaining the target species into the future. Stochastic extinctions might tend to be more common in areas with higher productivity (for example, areas with rich fluvial soils ar ...
A meta-analysis of the effects of cushion plants on high
... a generalized positive effect of cushions on other vascular plant species along the Andes? (2) do different species groups (i.e., annuals and perennials, natives and exotics) display different association responses to cushions? (3) does the nurse effect of cushions increase with environmental severi ...
... a generalized positive effect of cushions on other vascular plant species along the Andes? (2) do different species groups (i.e., annuals and perennials, natives and exotics) display different association responses to cushions? (3) does the nurse effect of cushions increase with environmental severi ...
The Density-Dependent Growth Rate of Guppies (Poecillia reticulata)
... Literature Cited…………..………………………………………………………………………16 ...
... Literature Cited…………..………………………………………………………………………16 ...
Analysis of the Port Tobacco Christmas Bird Count
... development of land both in county-wide cross sectional and time series data formats. The county has a large internet archive of internal reports and other documents; the most far-reaching in scope of these sources is the county’s comprehensive plan, a sort of legislative blueprint that integrates e ...
... development of land both in county-wide cross sectional and time series data formats. The county has a large internet archive of internal reports and other documents; the most far-reaching in scope of these sources is the county’s comprehensive plan, a sort of legislative blueprint that integrates e ...
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.