Human-Induced Trophic Cascades along the Fecal Detritus Pathway
... detritivores (including Scarabaeine dung beetles), with subsequent indirect impacts on detrivore-mediated and plantfacilitating detrital processes. Across a 380-km gradient of human influence in the western Brazilian Amazon, we conducted the first landscape-level assessment of human-induced cascade ...
... detritivores (including Scarabaeine dung beetles), with subsequent indirect impacts on detrivore-mediated and plantfacilitating detrital processes. Across a 380-km gradient of human influence in the western Brazilian Amazon, we conducted the first landscape-level assessment of human-induced cascade ...
WATER FRAMEWORK DIRECTIVE – Reference Conditions and Eutrophication Impacts in Irish Rivers (2000-FS-2-M1)
... This report has been prepared as part of the Environmental Research Technological Development and Innovation Programme (ERTDI) under the productive Sector Operational Programme 2000–2006. The programme is financed by the Irish Government under the National Development Plan 2000–2006. It is administe ...
... This report has been prepared as part of the Environmental Research Technological Development and Innovation Programme (ERTDI) under the productive Sector Operational Programme 2000–2006. The programme is financed by the Irish Government under the National Development Plan 2000–2006. It is administe ...
Patterns in species richness
... richness • Richness may peak at intermediate levels of available environmental energy or of disturbance frequency. • Richness declines with a reduction in island area or an increase in island remoteness • Richness decreases with increasing latitude, and declines or shows a hump-backed relationship w ...
... richness • Richness may peak at intermediate levels of available environmental energy or of disturbance frequency. • Richness declines with a reduction in island area or an increase in island remoteness • Richness decreases with increasing latitude, and declines or shows a hump-backed relationship w ...
Climate change impacts on marine ecosystems
... global warming are now playing a critical role. The extent of the coming disruption to biotic communities is ...
... global warming are now playing a critical role. The extent of the coming disruption to biotic communities is ...
AP Biology
... ___18) When a New England farm is abandoned, its formerly plowed fields first become weedy meadows, then shrubby areas, and finally forest. This sequence of plant communities is an example of A) evolution. C) secondary succession. B) a trophic chain. D) primary succession ___19) Non-native species t ...
... ___18) When a New England farm is abandoned, its formerly plowed fields first become weedy meadows, then shrubby areas, and finally forest. This sequence of plant communities is an example of A) evolution. C) secondary succession. B) a trophic chain. D) primary succession ___19) Non-native species t ...
SCCS 2017 programme - Student Conference on Conservation
... followed by a panel discussion Chair: Martin Harper (RSPB, UK) ...
... followed by a panel discussion Chair: Martin Harper (RSPB, UK) ...
wp69
... According to the FAO (2000) almost 44 percent of the land area (11,886,600 hectares) in Ecuador is suitable for forest plantations. However, commercial plantations currently comprise only 1.42 percent of the national forest area. Establishment of new commercial forest plantations would require chang ...
... According to the FAO (2000) almost 44 percent of the land area (11,886,600 hectares) in Ecuador is suitable for forest plantations. However, commercial plantations currently comprise only 1.42 percent of the national forest area. Establishment of new commercial forest plantations would require chang ...
Modeling the Boundaries of Plant Ecotones of Mountain Ecosystems
... invariable parameters. The boundaries of a community are determined by the effects of external modifying factors (such as temperature) on the plants and competitive interactions between the species that are not characteristic of this community but are present in the neighboring one [1,2]. In past mi ...
... invariable parameters. The boundaries of a community are determined by the effects of external modifying factors (such as temperature) on the plants and competitive interactions between the species that are not characteristic of this community but are present in the neighboring one [1,2]. In past mi ...
A Preliminary Survey of Rubble Organisms at Two Disturbed Areas
... preliminary survey of all the sites, 27 species were found. These species were entered into the database. Based on Sorensen’s Coefficient Index, there was little similarity between sites, with sites 1 and 2, and sites 2 and 4 being the most similar. Species richness in descending order is site 1, 2, ...
... preliminary survey of all the sites, 27 species were found. These species were entered into the database. Based on Sorensen’s Coefficient Index, there was little similarity between sites, with sites 1 and 2, and sites 2 and 4 being the most similar. Species richness in descending order is site 1, 2, ...
Section 6.3
... Threats to Biodiversity • Species diversity is related to genetic diversity. The more genetically diverse a species is, the greater its chances of surviving disturbances. So as human activity reduces genetic diversity, species are put at a greater risk for extinction. • Species diversity is also l ...
... Threats to Biodiversity • Species diversity is related to genetic diversity. The more genetically diverse a species is, the greater its chances of surviving disturbances. So as human activity reduces genetic diversity, species are put at a greater risk for extinction. • Species diversity is also l ...
Developing an understanding of vegetation change and carbon
... both key vegetation transitions occurring in the Sevilleta LTER within a common methodological framework this study will address whether grass-woody species transitions show common interactions between biotic and abiotic structure and function. This information in turn will be used to evaluate the u ...
... both key vegetation transitions occurring in the Sevilleta LTER within a common methodological framework this study will address whether grass-woody species transitions show common interactions between biotic and abiotic structure and function. This information in turn will be used to evaluate the u ...
NAME AP EXAM ECOLOGY Competitive exclusion is most likely to
... (A) Carnivores have greater intestinal length relative to body size than do herbivores. (B) Herbivores have greater intestinal length relative to body size than do carnivores. (C) Omnivores have greater intestinal length relative to body size than do either carnivores or herbivores. (D) The smaller ...
... (A) Carnivores have greater intestinal length relative to body size than do herbivores. (B) Herbivores have greater intestinal length relative to body size than do carnivores. (C) Omnivores have greater intestinal length relative to body size than do either carnivores or herbivores. (D) The smaller ...
species–area relationship
... the highest number of species. Of course, the ideal strategy would be to have many huge preserves, but this may not be feasible. Hence, the problem that conservation biologists have pondered is whether one large reserve or several small reserves with the same total area is better. The answer to this ...
... the highest number of species. Of course, the ideal strategy would be to have many huge preserves, but this may not be feasible. Hence, the problem that conservation biologists have pondered is whether one large reserve or several small reserves with the same total area is better. The answer to this ...
the extended commentary for this paper
... ecological attributes among plant species may drive differences in the decomposability of their litters. This is due to a disconnection between those working on the ecology of plants and those studying the decomposer subsystem at that time. More generally, although a small minority of ecologists has ...
... ecological attributes among plant species may drive differences in the decomposability of their litters. This is due to a disconnection between those working on the ecology of plants and those studying the decomposer subsystem at that time. More generally, although a small minority of ecologists has ...
Concepts and approaches for marine ecosystem research with
... 1806) that organisms produce more offspring can survive. This results in the “survival of the fittest” and makes evolution possible. Many ecologists perceived ecosystems as a network of interacting populations, the abiotic environment was seen as the mere background of the action. While early descri ...
... 1806) that organisms produce more offspring can survive. This results in the “survival of the fittest” and makes evolution possible. Many ecologists perceived ecosystems as a network of interacting populations, the abiotic environment was seen as the mere background of the action. While early descri ...
Forest Bird Habitat Assessment
... United States; they are a "nursery" for approximately 70 species of neo-tropical migratory birds. Although some of these birds are still common in our area – many are experiencing long-term population declines and have been identified by Audubon Connecticut as Priority Species. Audubon Connecticut’s ...
... United States; they are a "nursery" for approximately 70 species of neo-tropical migratory birds. Although some of these birds are still common in our area – many are experiencing long-term population declines and have been identified by Audubon Connecticut as Priority Species. Audubon Connecticut’s ...
Biodiversity Conservation and Habitat Management: An
... microorganisms; the genes they contain; and the intricate ecosystems they help build into the living environment. It is under threat from an "Evil Quartet": over-harvesting by humans; habitat destruction and fragmentation; the impact of introduced species; and chains of extinction. Conservation biol ...
... microorganisms; the genes they contain; and the intricate ecosystems they help build into the living environment. It is under threat from an "Evil Quartet": over-harvesting by humans; habitat destruction and fragmentation; the impact of introduced species; and chains of extinction. Conservation biol ...
The Gopher Tortoise - Gopher Tortoise Council
... Tortoises often leave relocation site Disruption of resident populations Labor intensive/costly Transmission of disease Diverts conservation funds ...
... Tortoises often leave relocation site Disruption of resident populations Labor intensive/costly Transmission of disease Diverts conservation funds ...
8 Habitat matrix effects on the structure and dynamic
... of their lives in terrestrial habitats that may or may not be directly adjacent to the breeding site (Wilbur 1984; Marsh & Trenham 2001; Smith & Green 2005). Dunning and co-workers (1992) coined the term “landscape complementation” to highlight the requirement for several species to link together di ...
... of their lives in terrestrial habitats that may or may not be directly adjacent to the breeding site (Wilbur 1984; Marsh & Trenham 2001; Smith & Green 2005). Dunning and co-workers (1992) coined the term “landscape complementation” to highlight the requirement for several species to link together di ...
Prospects for biodiversity conservation in the Atlantic Forest
... and has been internationally recognized as one of the key global biodiversity hotspots (Mittermeier et al., 2005a). Since 120 million people (or 70% of the Brazilian population) live along the Brazilian Atlantic coast, this biome has experienced unprecedented levels of habitat loss and other human ...
... and has been internationally recognized as one of the key global biodiversity hotspots (Mittermeier et al., 2005a). Since 120 million people (or 70% of the Brazilian population) live along the Brazilian Atlantic coast, this biome has experienced unprecedented levels of habitat loss and other human ...
Editorial: Plant Silicon Interactions between Organisms and the
... How plants Si accumulation and use might respond to climate change is unknown. Fulweiler et al. provide a first insight using data from a free-air CO2 enrichment experiment. They showed little change in foliar Si concentration under elevated atmospheric CO2 . However, due to increased primary produc ...
... How plants Si accumulation and use might respond to climate change is unknown. Fulweiler et al. provide a first insight using data from a free-air CO2 enrichment experiment. They showed little change in foliar Si concentration under elevated atmospheric CO2 . However, due to increased primary produc ...
185 - University of Connecticut
... We estimated population density within each plot in each season as the mean number of individuals captured per night within that season. Although this measure underestimates true density, it has advantages over other measures. It does not require marking of snails for subsequent identification, impo ...
... We estimated population density within each plot in each season as the mean number of individuals captured per night within that season. Although this measure underestimates true density, it has advantages over other measures. It does not require marking of snails for subsequent identification, impo ...
Ecological Succession
... disturbance such as a fire, tornado, etc...and the soil remains intact, the area begins to return to its natural community. Because these habitats previously supported life, secondary succession, unlike primary succession, begins on substrates that already bear soil. In addition, the soil contains a ...
... disturbance such as a fire, tornado, etc...and the soil remains intact, the area begins to return to its natural community. Because these habitats previously supported life, secondary succession, unlike primary succession, begins on substrates that already bear soil. In addition, the soil contains a ...
Is there a correlation between deforestation and the rise of malaria
... Sub-Saharan rainforests are being deforested at rates that are unsustainable and will greatly impact future generations. Forests bestow the basic foundations of ecological functions by means of regulating climate and water resources, and providing habitats for animals and plants. A typical course fo ...
... Sub-Saharan rainforests are being deforested at rates that are unsustainable and will greatly impact future generations. Forests bestow the basic foundations of ecological functions by means of regulating climate and water resources, and providing habitats for animals and plants. A typical course fo ...
Biotic vs. abiotic determinants of the local distribution of
... conditions that allow a population to persist (spatial extent of fundamental niche) Biotic factors – constrain occupation to a proportion of those conditions (subset of fundamental niche) ...
... conditions that allow a population to persist (spatial extent of fundamental niche) Biotic factors – constrain occupation to a proportion of those conditions (subset of fundamental niche) ...
Biological Dynamics of Forest Fragments Project
The Biological Dynamics of Forest Fragments Project, originally called the Minimum Critical Size of Ecosystems Project is a large-scale ecological experiment looking at the effects of habitat fragmentation on tropical rainforest; it is one of the most expensive biology experiments ever run. The experiment, which was established in 1979 is located near Manaus, in the Brazilian Amazon. The project is jointly managed by the Smithsonian Institution and INPA, the Brazilian Institute for Research in the Amazon.The project was initiated in 1979 by Thomas Lovejoy to investigate the SLOSS debate. Initially named the Minimum Critical Size of Ecosystems Project, the project created forest fragments of sizes 1 hectare (2 acres), 10 hectares (25 acres), and 100 hectares (247 acres). Data were collected prior to the creation of the fragments and studies of the effects of fragmentation now exceed 25 years.As of October 2010 562 publications and 143 graduate dissertations and theses had emerged from the project.