wet tropics of queensland
... Criterion (viii): The Wet Tropics contains one of the most complete and diverse living records of the major stages in the evolution of land plants, from the very first pteridophytes more than 200 million years ago to the evolution of seed-producing plants including the cone-bearing cycads and south ...
... Criterion (viii): The Wet Tropics contains one of the most complete and diverse living records of the major stages in the evolution of land plants, from the very first pteridophytes more than 200 million years ago to the evolution of seed-producing plants including the cone-bearing cycads and south ...
Reintroduction of a Rare Plant (Gladiolus imbricatus) Population to a
... has been a traditional management regime for this type of meadow. The cutting height—on average 15 cm by tractor and 5 cm by scythe—might explain this result because lower cut evidently results in higher evaporation, which may lead to increased water stress for seedlings (Eckstein 2005). Hölzel and ...
... has been a traditional management regime for this type of meadow. The cutting height—on average 15 cm by tractor and 5 cm by scythe—might explain this result because lower cut evidently results in higher evaporation, which may lead to increased water stress for seedlings (Eckstein 2005). Hölzel and ...
Gilliam FS and MR Roberts. 2003. The dynamic nature of the
... layer, comprising two functional groups: resident species and transient species. Resident species are those with life-history characteristics that confine them to maximum above-ground heights of no more than about 1.5 m. Transient species are those with the potential to develop and emerge into higher ...
... layer, comprising two functional groups: resident species and transient species. Resident species are those with life-history characteristics that confine them to maximum above-ground heights of no more than about 1.5 m. Transient species are those with the potential to develop and emerge into higher ...
Patterns of herbivory on Macaranga peltata, a pioneer species in the
... that plant part 3,5,7,8. The ‘resource availability hypothesis’ suggests that defensive capabilities of plants are determined by their growth rate, photosynthetic capabilities and nutrient availability2. Both of these are based on resource allocation from a plant’s point of view. Subsequent studies ...
... that plant part 3,5,7,8. The ‘resource availability hypothesis’ suggests that defensive capabilities of plants are determined by their growth rate, photosynthetic capabilities and nutrient availability2. Both of these are based on resource allocation from a plant’s point of view. Subsequent studies ...
dynamic equilibrium, and the turnover rates (extinction rates or
... by 1968, while other species present in 1968 had been absent in 1917 and must have immigrated. For instance, on Los Coronados the peregrine falcon, Allen's hummingbird, barn swallow, and raven became extinct, while the sparrow hawk, black phoebe, house wren, and chipping sparrow immigrated. Despite ...
... by 1968, while other species present in 1968 had been absent in 1917 and must have immigrated. For instance, on Los Coronados the peregrine falcon, Allen's hummingbird, barn swallow, and raven became extinct, while the sparrow hawk, black phoebe, house wren, and chipping sparrow immigrated. Despite ...
Abstracts PDF - California and Nevada Amphibian Populations Task
... Chytrid Infection, Drought, and Flow Regulation Create Multiple Stressors on Foothill YellowLegged Frog Populations in the Alameda Creek Watershed In the fall of 2013 we observed dead and dying juvenile foothill yellow-legged frogs (Rana boylii) in the Bay Area’s Alameda Creek, a location where annu ...
... Chytrid Infection, Drought, and Flow Regulation Create Multiple Stressors on Foothill YellowLegged Frog Populations in the Alameda Creek Watershed In the fall of 2013 we observed dead and dying juvenile foothill yellow-legged frogs (Rana boylii) in the Bay Area’s Alameda Creek, a location where annu ...
LETTERS Grassland species loss resulting from reduced niche dimension W. Stanley Harpole
... mechanisms. Although productivity, but not litter or light, predicted species number, the most parsimonious model (lowest Akaike’s information criterion) included only the number of added resources (Supplementary Table S4a). The number of added resources was significant in every model predicting spe ...
... mechanisms. Although productivity, but not litter or light, predicted species number, the most parsimonious model (lowest Akaike’s information criterion) included only the number of added resources (Supplementary Table S4a). The number of added resources was significant in every model predicting spe ...
Lecture: Concepts of Regeneration
... Artificial Regeneration - stand establishment is from human intervention: planting seedlings or cuttings or by direct seeding. ...
... Artificial Regeneration - stand establishment is from human intervention: planting seedlings or cuttings or by direct seeding. ...
Herbivores Promote Habitat Specialization by Trees in Amazonian
... near Iquitos, Peru (3°57⬘S, 73°26⬘W), provides an ideal system to study habitat specialization and the role of insect herbivores. Forests in the Iquitos area occur on a mosaic of soil types with well-defined boundaries, including extremely infertile whitesand soils adjacent to lateritic red-clay soi ...
... near Iquitos, Peru (3°57⬘S, 73°26⬘W), provides an ideal system to study habitat specialization and the role of insect herbivores. Forests in the Iquitos area occur on a mosaic of soil types with well-defined boundaries, including extremely infertile whitesand soils adjacent to lateritic red-clay soi ...
FWC species profile - Florida Wildlife Conservation Guide
... forests have been cleared for development. Many Florida nesting sites are within federal parks or refuges, including Biscayne Bay National Park and Everglades National Park in the Upper Keys, and Great White Heron and Key West National Wildlife Refuges in the Lower Keys. However, continued destructi ...
... forests have been cleared for development. Many Florida nesting sites are within federal parks or refuges, including Biscayne Bay National Park and Everglades National Park in the Upper Keys, and Great White Heron and Key West National Wildlife Refuges in the Lower Keys. However, continued destructi ...
Changes in Plant Community Dominance
... Plant Adaptations – Studying plant responses to cold temperatures, low moisture conditions, short growing seasons. Phenology - studying timing of recurring natural phenomena in response to seasonal and climatic changes to the environment. Succession - the observed process of change in the species st ...
... Plant Adaptations – Studying plant responses to cold temperatures, low moisture conditions, short growing seasons. Phenology - studying timing of recurring natural phenomena in response to seasonal and climatic changes to the environment. Succession - the observed process of change in the species st ...
Activity (Teacher Verison) PDF
... including rotting fruit and leaves, tree sap, and fungi. About 100 of the Hawaiian Drosophila species are giant picture wing flies. With wingspans up to 2.5 centimeters (one inch), these flies have ornate wing and body patterns that enable the different species to recognize each other. Male fl ...
... including rotting fruit and leaves, tree sap, and fungi. About 100 of the Hawaiian Drosophila species are giant picture wing flies. With wingspans up to 2.5 centimeters (one inch), these flies have ornate wing and body patterns that enable the different species to recognize each other. Male fl ...
Duffy 2008 Frontiers in Ecology and the Environment
... (Balvanera et al. 2006; Cardinale et al. 2006). These analyses revealed evidence that mixtures of species produce more biomass and use more resources, on average, than do single species. This pattern is surprisingly consistent across taxa, trophic levels, and habitats. Even within more realistic, mu ...
... (Balvanera et al. 2006; Cardinale et al. 2006). These analyses revealed evidence that mixtures of species produce more biomass and use more resources, on average, than do single species. This pattern is surprisingly consistent across taxa, trophic levels, and habitats. Even within more realistic, mu ...
Population Dynamics of Soil and Vegetation Protozoa Newcomb
... minerals in aquatic ecosystems, where most of the elements are contained in the bodies of algae (Pomeroy, 1970). Bacteria accumulate elements through decomposing activities and recycle elements only through autolysis or as a result of being ingested by protozoa, small detritus eaters, and coprophago ...
... minerals in aquatic ecosystems, where most of the elements are contained in the bodies of algae (Pomeroy, 1970). Bacteria accumulate elements through decomposing activities and recycle elements only through autolysis or as a result of being ingested by protozoa, small detritus eaters, and coprophago ...
Mesonet, Plant Available Water - No-Till
... cm) of soil under the existing vegetation at each Mesonet site for the previous day. Plant available water under other vegetation types may differ. Plant available water is the amount of water in the soil that is potentially available for plant uptake. Technically, it is calculated as the amount o ...
... cm) of soil under the existing vegetation at each Mesonet site for the previous day. Plant available water under other vegetation types may differ. Plant available water is the amount of water in the soil that is potentially available for plant uptake. Technically, it is calculated as the amount o ...
1 - NSW Department of Education
... Plan Budget: $79,500 Actual expenditure: $57,000 to date. Of this expenditure, $41,000 was on weed control and bush regeneration, greatly exceeding the $8000 allocated in the recovery plan. The remainder of the money was spent on production of the information brochure and Teachers Kit, which receive ...
... Plan Budget: $79,500 Actual expenditure: $57,000 to date. Of this expenditure, $41,000 was on weed control and bush regeneration, greatly exceeding the $8000 allocated in the recovery plan. The remainder of the money was spent on production of the information brochure and Teachers Kit, which receive ...
Unit 2 Ecology Chp 52 Intro to Ecology and the
... environments is called ecology (from the Greek oikos, home, and logos, to study). It is these interactions that determine both the distribution and abundance of organisms, resulting in the two questions that ecologists so often ask about organisms: Where do they live? And how many are there? Ecology ...
... environments is called ecology (from the Greek oikos, home, and logos, to study). It is these interactions that determine both the distribution and abundance of organisms, resulting in the two questions that ecologists so often ask about organisms: Where do they live? And how many are there? Ecology ...
awadhesh pratp singh university
... 2. Forest as an ecosystem : Structural attributes : Composition of different forest, phytosociological attributes; density and dominance relations of different forest communities. Forest stratification and canopy structure, microclimate 3. Functional Attributes : (a) Energy flow : process, importanc ...
... 2. Forest as an ecosystem : Structural attributes : Composition of different forest, phytosociological attributes; density and dominance relations of different forest communities. Forest stratification and canopy structure, microclimate 3. Functional Attributes : (a) Energy flow : process, importanc ...
here - Azuero Earth Project
... their citizens survive at a subsistence level. For many species, sustainable management (Bodmer & Puertas 2000; Hill & Padwe 2000) may be the only viable alternative to local extirpation and eventual global extinction. The second cause of spatial variation in hunting pressure, simple spatial isolati ...
... their citizens survive at a subsistence level. For many species, sustainable management (Bodmer & Puertas 2000; Hill & Padwe 2000) may be the only viable alternative to local extirpation and eventual global extinction. The second cause of spatial variation in hunting pressure, simple spatial isolati ...
The Keystone Predator Hypothesis - Cal State LA
... • Because population growth potential is geometric and world is finite, there is a struggle for existence. • Darwin reasoned that struggle should be most intense among most similar organisms - hence competition should predominate. • The competitive exclusion principal maintains that no two species c ...
... • Because population growth potential is geometric and world is finite, there is a struggle for existence. • Darwin reasoned that struggle should be most intense among most similar organisms - hence competition should predominate. • The competitive exclusion principal maintains that no two species c ...
Ecology
... also some aquatic vascular plants. The algae are essential to the other organisms in the lake, both as primary producers and in oxygen production. Fungi literally permeate the logs, dead leaves, and soil of Schmeeckle Reserve. Their microscopic threads ooze enzymes which gradually digest the litter. ...
... also some aquatic vascular plants. The algae are essential to the other organisms in the lake, both as primary producers and in oxygen production. Fungi literally permeate the logs, dead leaves, and soil of Schmeeckle Reserve. Their microscopic threads ooze enzymes which gradually digest the litter. ...
Contemporary perspectives on the niche that can improve models of
... shifting, hierarchical relationships between environment and species performance offer a simpler and more realistic framework for predicting species distribution at finer spatial scales (Kearney 2006). Three mechanistic modelling frameworks are used currently to predict shifts in distributions under ...
... shifting, hierarchical relationships between environment and species performance offer a simpler and more realistic framework for predicting species distribution at finer spatial scales (Kearney 2006). Three mechanistic modelling frameworks are used currently to predict shifts in distributions under ...
How geographic distance and depth drive ecological variability and
... rather than number of individuals. These procedure could lead to biases when estimating dominance of larger than average individuals. However, in the structuring of the communities, each individual has an ecological cost ...
... rather than number of individuals. These procedure could lead to biases when estimating dominance of larger than average individuals. However, in the structuring of the communities, each individual has an ecological cost ...
Nitrogen Deposition Effects on Coastal Sage Vegetation of Southern California 1 Abstract
... At Box Springs Mountain only one introduced forb, small-podded mustard (Brassica geniculata [Desf.] J. Ball), responded significantly to N fertilizer on the burned plots, and this was also the only species that responded on the unburned plots (data not shown, but small-podded mustard increased from ...
... At Box Springs Mountain only one introduced forb, small-podded mustard (Brassica geniculata [Desf.] J. Ball), responded significantly to N fertilizer on the burned plots, and this was also the only species that responded on the unburned plots (data not shown, but small-podded mustard increased from ...
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.