Cynanchum elegans review of information
... The geographic distribution of Cynanchum elegans is not currently restricted with an extent of occurrence estimated to be 81 000 km2. Within this range, however, the area of occupancy is conservatively estimated to be at least 450 km2 based a 2 x 2 km grid, the spatial scale of assessment recommende ...
... The geographic distribution of Cynanchum elegans is not currently restricted with an extent of occurrence estimated to be 81 000 km2. Within this range, however, the area of occupancy is conservatively estimated to be at least 450 km2 based a 2 x 2 km grid, the spatial scale of assessment recommende ...
The importance of large carnivores to healthy ecosystems
... plant biomass and primary productivity in Arctic/Antarctic areas with and without herbivores. In areas with herbivores, the regression slope between plant biomass and increasing productivity is flat, whereas in areas without herbivores the regression slope between plant biomass and increasing produc ...
... plant biomass and primary productivity in Arctic/Antarctic areas with and without herbivores. In areas with herbivores, the regression slope between plant biomass and increasing productivity is flat, whereas in areas without herbivores the regression slope between plant biomass and increasing produc ...
Document
... • Overall responsible for the extinction of 3 out of 4 seabirds; 9 out of 13 forest birds; 3-5 out 12 reptile species on the Island of Guam. • This snake caused the extirpation or serious reduction of most of the island's 25 resident bird species on the main island of Guam. ...
... • Overall responsible for the extinction of 3 out of 4 seabirds; 9 out of 13 forest birds; 3-5 out 12 reptile species on the Island of Guam. • This snake caused the extirpation or serious reduction of most of the island's 25 resident bird species on the main island of Guam. ...
Camarhynchus pauper, Medium Tree-finch
... 2010a). It is thought to be at elevated risk from fly parasitism because its only extant habitat is adjacent to cleared agricultural land with fruiting trees which are favoured by the adult fly (S. Kleindorfer in litt. 2008). Floreana has a suite of introduced predators and herbivores including catt ...
... 2010a). It is thought to be at elevated risk from fly parasitism because its only extant habitat is adjacent to cleared agricultural land with fruiting trees which are favoured by the adult fly (S. Kleindorfer in litt. 2008). Floreana has a suite of introduced predators and herbivores including catt ...
landscape-level patterns of avian diversity in the
... the most dominant species decreased in abundance, whereas moderately abundant species increased in relative abundance. This resulted in bird communities that were more even in fragmented landscapes. Unlike several other studies, we did not find that the relative strength of fragmentation effects inc ...
... the most dominant species decreased in abundance, whereas moderately abundant species increased in relative abundance. This resulted in bird communities that were more even in fragmented landscapes. Unlike several other studies, we did not find that the relative strength of fragmentation effects inc ...
Chapter 18 – Ecology of Organisms and Populations
... lakes. Essentially, you could refer to each as a major category of environments. Now you decide to parachute down into one of these environments, lets say you end up in a forest. So you are now in a major habitat type, clearly different from prairie, residential, and agriculturalized. So if you begi ...
... lakes. Essentially, you could refer to each as a major category of environments. Now you decide to parachute down into one of these environments, lets say you end up in a forest. So you are now in a major habitat type, clearly different from prairie, residential, and agriculturalized. So if you begi ...
Proposal - Texas Water Resources Institute
... non-native species often produce profound effects on freshwater ecosystems in Texas. Major alterations in freshwater ecosystems involve changes in species abundance and composition1 . This can include modification of system components at all trophic levels (e.g. periphyton, zooplankton, mollusks, in ...
... non-native species often produce profound effects on freshwater ecosystems in Texas. Major alterations in freshwater ecosystems involve changes in species abundance and composition1 . This can include modification of system components at all trophic levels (e.g. periphyton, zooplankton, mollusks, in ...
stopover on a gulf coast barrier island by spring trans
... 10 April (Table 3). Chi-square analysis of the frequency of occurrence of all individuals after 10 April leads to a similar conclusion: Scrub/Shrub, Forest, and Relic Dune were used more by migrants than Primary Dune and Marsh/Meadow. A greater number of species (Table 2) was recorded for the three ...
... 10 April (Table 3). Chi-square analysis of the frequency of occurrence of all individuals after 10 April leads to a similar conclusion: Scrub/Shrub, Forest, and Relic Dune were used more by migrants than Primary Dune and Marsh/Meadow. A greater number of species (Table 2) was recorded for the three ...
Ann Spearing - Sterling College
... basic exchanges of one green plants for another are natural, they assert, and therefore invasives are neither a problem nor a valid human concern. Humans have played an explicit role in the transportation and introduction of nonnative plants and seeds both intentionally and unintentionally. When su ...
... basic exchanges of one green plants for another are natural, they assert, and therefore invasives are neither a problem nor a valid human concern. Humans have played an explicit role in the transportation and introduction of nonnative plants and seeds both intentionally and unintentionally. When su ...
Earthworm invasion into previously earthworm-free temperate and boreal forests
... part of the detritivore community, consuming leaf litter and increasing rates of decomposition. Although it is well known that detritivores and decomposers are necessary for recycling of carbon and nutrients, seldom do scientists have the chance to observe how a major change in the detritivore commu ...
... part of the detritivore community, consuming leaf litter and increasing rates of decomposition. Although it is well known that detritivores and decomposers are necessary for recycling of carbon and nutrients, seldom do scientists have the chance to observe how a major change in the detritivore commu ...
Conservation status of Powerful Owl in New South Wales
... vulpes’, and ‘High frequency fire resulting in the disruption of life cycle processes in plants and animals and loss of vegetation structure and composition’ are listed as Key Threatening Processes under the TSC Act in NSW. Extreme fluctuations: There is no evidence of extreme fluctuations in popula ...
... vulpes’, and ‘High frequency fire resulting in the disruption of life cycle processes in plants and animals and loss of vegetation structure and composition’ are listed as Key Threatening Processes under the TSC Act in NSW. Extreme fluctuations: There is no evidence of extreme fluctuations in popula ...
Ecology and the Environment - Mrs. Nicolai's Science Class
... Members of populations compete for food, water, mates, and space. The resources of the environment and how the organisms use these resources determine how large a population can be. ...
... Members of populations compete for food, water, mates, and space. The resources of the environment and how the organisms use these resources determine how large a population can be. ...
When is more species better? A long and winding ecological
... in combination with the analysis of synergies and trade-offs between these services is the basis for valuing the multi-functionality of ecosystems for ...
... in combination with the analysis of synergies and trade-offs between these services is the basis for valuing the multi-functionality of ecosystems for ...
Spatial structure - e
... shade-tolerant species, regeneration can survive. Shadeintolerant species often show mono-layered stand, trees that are shade intolerant can not survive in the understories. ...
... shade-tolerant species, regeneration can survive. Shadeintolerant species often show mono-layered stand, trees that are shade intolerant can not survive in the understories. ...
Ecological Succession
... Knobcone pine (pictured below) have seed cones that require the heat of a fire to open. The seeds are protected from fire behind tightly closed resincoated scales, often so well insulated that even when the outer part of the cone is charred, the seeds inside are protected. High temperatures cause t ...
... Knobcone pine (pictured below) have seed cones that require the heat of a fire to open. The seeds are protected from fire behind tightly closed resincoated scales, often so well insulated that even when the outer part of the cone is charred, the seeds inside are protected. High temperatures cause t ...
PDF Version - Jamaica Clearing
... and agricultural practices. The long-term effects of bauxite mining and alumina processing have not been fully assessed. Limestone, marl and gypsum are widely used in the construction industry and road building. Limestone and gypsum are also used extensively in the local production of cement. Limest ...
... and agricultural practices. The long-term effects of bauxite mining and alumina processing have not been fully assessed. Limestone, marl and gypsum are widely used in the construction industry and road building. Limestone and gypsum are also used extensively in the local production of cement. Limest ...
Chapter 36 to 38 Notes
... a. despite reduced fertility and as a result of girls in the 0–14 age group of a previously expanding population reaching their childbearing years. 36.10 CONNECTION: Age structures reveal social and economic trends 1. Age-structure diagrams reveal a population’s growth trends and social conditions. ...
... a. despite reduced fertility and as a result of girls in the 0–14 age group of a previously expanding population reaching their childbearing years. 36.10 CONNECTION: Age structures reveal social and economic trends 1. Age-structure diagrams reveal a population’s growth trends and social conditions. ...
Predicting distributions of species richness and species size in
... 2000 and references cited there) indicates that this effect can and indeed does account for why there are generally more species excluded from highly fertile, undisturbed habitats, compared with less fertile or more disturbed habitats. It does not, however, explain why there are relatively few speci ...
... 2000 and references cited there) indicates that this effect can and indeed does account for why there are generally more species excluded from highly fertile, undisturbed habitats, compared with less fertile or more disturbed habitats. It does not, however, explain why there are relatively few speci ...
primary production - Northern Highlands Regional HS
... For CAMPBELL BIOLOGY, NINTH EDITION Jane B. Reece, Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Robert B. Jackson ...
... For CAMPBELL BIOLOGY, NINTH EDITION Jane B. Reece, Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Robert B. Jackson ...
Invasive non-native species impact scoring
... Medium confidence: 35-80% chance of assessment being correct ...
... Medium confidence: 35-80% chance of assessment being correct ...
Summary of Scientific Findings on Roads and Aquatic Ecosystems
... and Boise River basins). These three locations also have been identified as being at higher risk of landslide during infrequent, high intensity, or long duration storm events in northwestern California by LaHusen (1984) and in Oregon and southern Washington by Weaver and Hagan (1996). The risk of la ...
... and Boise River basins). These three locations also have been identified as being at higher risk of landslide during infrequent, high intensity, or long duration storm events in northwestern California by LaHusen (1984) and in Oregon and southern Washington by Weaver and Hagan (1996). The risk of la ...
Kick-off projects to restore nature on St Eustatius
... and their own interests, such as economic benefits, they will more likely support it. Therefore, an important spin-off of the project is successful and effective implementation of any nature plan or policy. The allocated subsidy makes it possible to organise information and awareness raising campaig ...
... and their own interests, such as economic benefits, they will more likely support it. Therefore, an important spin-off of the project is successful and effective implementation of any nature plan or policy. The allocated subsidy makes it possible to organise information and awareness raising campaig ...
San Diego Children and Nature Collaborative Curriculm Sample.
... California Science, MacMillan/McGraw-Hill Ch. 2 L 4 ...
... California Science, MacMillan/McGraw-Hill Ch. 2 L 4 ...
Life Science The Life Science standards emphasize a more complex
... a) the distinguishing characteristics of kingdoms of organisms; b) the distinguishing characteristics of major animal and plant phyla; and c) the characteristics of the species. LS.6 ...
... a) the distinguishing characteristics of kingdoms of organisms; b) the distinguishing characteristics of major animal and plant phyla; and c) the characteristics of the species. LS.6 ...
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.