File - Kevin Wilcox
... Biodiversity and Ecosystem Stability • Dynamic stability – System returns to its “original” state after small perturbations – Robert May (1973) thought that increased diversity would actually lead to decreased dynamic stability – New theoretical models suggest that increased diversity will not incr ...
... Biodiversity and Ecosystem Stability • Dynamic stability – System returns to its “original” state after small perturbations – Robert May (1973) thought that increased diversity would actually lead to decreased dynamic stability – New theoretical models suggest that increased diversity will not incr ...
Chapter 35
... • Parasitism is a symbiotic relationship in which one species benefits while the other is harmed. • This interaction is really a form of predator-prey relationship but a parasite usually does not kill its host. • The parasite is much smaller than the host and remains closely associated with it. ...
... • Parasitism is a symbiotic relationship in which one species benefits while the other is harmed. • This interaction is really a form of predator-prey relationship but a parasite usually does not kill its host. • The parasite is much smaller than the host and remains closely associated with it. ...
Calcification Energy Budgets Early Life Stages Community
... The majority of calcification responses to OA are negative, with changes in calcification rate ranging from a 99% decline to a 400% increase. This is highly variable between species/genera. Alterations in morphology have been observed in corals10 (Fig. 2) and bivalves11. Metabolic responses have bee ...
... The majority of calcification responses to OA are negative, with changes in calcification rate ranging from a 99% decline to a 400% increase. This is highly variable between species/genera. Alterations in morphology have been observed in corals10 (Fig. 2) and bivalves11. Metabolic responses have bee ...
Distribution of Mangrove Species on Hummingbird Cay, Bahamas Introduction
... and L. racemosa have pnuematophores that need to extend into the open air, restricting there range to the land or shallow water. Together these factors give R. mangle a competitive advantage in deep water. With a deep water advantage, R. mangle is able to pioneer into areas inaccessible to A. germin ...
... and L. racemosa have pnuematophores that need to extend into the open air, restricting there range to the land or shallow water. Together these factors give R. mangle a competitive advantage in deep water. With a deep water advantage, R. mangle is able to pioneer into areas inaccessible to A. germin ...
Niches - Teacher Pages
... species of sea star called the crown of thorns lives and feeds on the corals that make up the reef. In the past, the crown of thorns was rare because it was eaten by many species of predatory fish, but fishing by people has removed many of the sea star’s predators. The crown of thorns’ numbers incre ...
... species of sea star called the crown of thorns lives and feeds on the corals that make up the reef. In the past, the crown of thorns was rare because it was eaten by many species of predatory fish, but fishing by people has removed many of the sea star’s predators. The crown of thorns’ numbers incre ...
Known knowns and unknowns in biology
... Environment-Facts/Plants-Animals/estimate-of-worlds-total-number-of-species.php) This category includes inferences made about ‘missing’ organisms from their morphology, both in extant and extinct species (e.g. the beaks of Darwin’s finches and their usage; ears and facial nose leaf apparatus of bats ...
... Environment-Facts/Plants-Animals/estimate-of-worlds-total-number-of-species.php) This category includes inferences made about ‘missing’ organisms from their morphology, both in extant and extinct species (e.g. the beaks of Darwin’s finches and their usage; ears and facial nose leaf apparatus of bats ...
assessment
... A major grant has been received from the Environment, Science and Energy Department of the UK Foreign Commonwealth Office to facilitate conservation activities on Anegada. Goals of this program are to 1) implement a cat eradication/control feasibility study, 2) expand the current headstart facility, ...
... A major grant has been received from the Environment, Science and Energy Department of the UK Foreign Commonwealth Office to facilitate conservation activities on Anegada. Goals of this program are to 1) implement a cat eradication/control feasibility study, 2) expand the current headstart facility, ...
Document
... The Bayesian occupancy approach enables an estimation of species occurrence even though the data used in this indicator were collected without a standardized survey design (van Strien et al. 2013; Isaac et al. 2014). For each species, records were extracted at the 1km grid square scale with records ...
... The Bayesian occupancy approach enables an estimation of species occurrence even though the data used in this indicator were collected without a standardized survey design (van Strien et al. 2013; Isaac et al. 2014). For each species, records were extracted at the 1km grid square scale with records ...
Concepts of keystone species and species importance in ecology
... The term of keystone species was first introduced by Robert T. Pain in 1969, and originally applied to a top predator. The keystone species was defined as: The species composition and physical appearance in a community or ecosystem were greatly modified by the activities of a single native species i ...
... The term of keystone species was first introduced by Robert T. Pain in 1969, and originally applied to a top predator. The keystone species was defined as: The species composition and physical appearance in a community or ecosystem were greatly modified by the activities of a single native species i ...
Control of One Native Animal Species To Benefit Another Native
... benefit another. We live in a highly altered environment in which habitats and wildlife change daily. Wildlife managers must be allowed to manipulate all aspects of the environment if they are to have a strong impact on managed animal populations. If managers are limited in the management tools they ...
... benefit another. We live in a highly altered environment in which habitats and wildlife change daily. Wildlife managers must be allowed to manipulate all aspects of the environment if they are to have a strong impact on managed animal populations. If managers are limited in the management tools they ...
Anak Krakatau
... The story of Rakata’s Life (rebuilding an ecosystem) • In 1919, a Dutch botanist found forest patches surrounded by nearly continuous grassland. • Ten years later, the same Dutch botanist found an island well on its way to being reforested – the grasses were being choked out. • Today, Rakata appear ...
... The story of Rakata’s Life (rebuilding an ecosystem) • In 1919, a Dutch botanist found forest patches surrounded by nearly continuous grassland. • Ten years later, the same Dutch botanist found an island well on its way to being reforested – the grasses were being choked out. • Today, Rakata appear ...
Interspecific Segregation and Phase Transition in a Lattice
... 1994; Nakagiri, et al., 2001). Spatial distribution of individuals usually differs from randomness. In most cases, individuals of the same species form clumping patterns; they huddle together. Nonrandomness in spatial distribution influences on evolutionary argument. In the present paper, we demonst ...
... 1994; Nakagiri, et al., 2001). Spatial distribution of individuals usually differs from randomness. In most cases, individuals of the same species form clumping patterns; they huddle together. Nonrandomness in spatial distribution influences on evolutionary argument. In the present paper, we demonst ...
structure, composition and spatial pattern sof degraded limestone
... Structural and spatial patterns of tree species in forests are important indicators to explain which underlying mechanisms or processes regulating forest structure. In this article, techniques of spatial point pattern analysis were used to characterize structural and spatial patterns of two secondar ...
... Structural and spatial patterns of tree species in forests are important indicators to explain which underlying mechanisms or processes regulating forest structure. In this article, techniques of spatial point pattern analysis were used to characterize structural and spatial patterns of two secondar ...
WORD - Trent University
... deciduous trees is being inhibited. It is possible that cedars will dominate these areas for many decades. From a recreational use and wildlife habitat standpoint, deciduous or mixed woodlands are a more desirable cover than impenetrable cedar forest. If white cedar stands are not too dense they can ...
... deciduous trees is being inhibited. It is possible that cedars will dominate these areas for many decades. From a recreational use and wildlife habitat standpoint, deciduous or mixed woodlands are a more desirable cover than impenetrable cedar forest. If white cedar stands are not too dense they can ...
Human population overshoot what went wrong?
... groups, with teachings such as “Do unto others as you would have them do unto you,” and “Love your neighbor as yourself.” Religions are also are a way of passing on traditions and building connectedness among members. Modern religions have not done as well with population control, however. The comma ...
... groups, with teachings such as “Do unto others as you would have them do unto you,” and “Love your neighbor as yourself.” Religions are also are a way of passing on traditions and building connectedness among members. Modern religions have not done as well with population control, however. The comma ...
View/Open
... impacts such as costs of control, eradication, and prevention and the expected loss in productivity of the enterprise. However, such an approach is shortsighted, because in several cases the indirect effects arising from (say) the trade impacts could easily outweigh production loss impacts. A recent ...
... impacts such as costs of control, eradication, and prevention and the expected loss in productivity of the enterprise. However, such an approach is shortsighted, because in several cases the indirect effects arising from (say) the trade impacts could easily outweigh production loss impacts. A recent ...
Species Coextinctions and the Biodiversity Crisis
... host will result in the coextinctions of all its affiliated organisms. For example, the army ant, Eciton burchelli, hosts no fewer than 100 affiliate species, including springtails, beetles, mites, and ant birds (13). Many of these affiliate organisms would hence be lost were E. burchelli to go exti ...
... host will result in the coextinctions of all its affiliated organisms. For example, the army ant, Eciton burchelli, hosts no fewer than 100 affiliate species, including springtails, beetles, mites, and ant birds (13). Many of these affiliate organisms would hence be lost were E. burchelli to go exti ...
Species Coextinctions and the Biodiversity Crisis
... host will result in the coextinctions of all its affiliated organisms. For example, the army ant, Eciton burchelli, hosts no fewer than 100 affiliate species, including springtails, beetles, mites, and ant birds (13). Many of these affiliate organisms would hence be lost were E. burchelli to go exti ...
... host will result in the coextinctions of all its affiliated organisms. For example, the army ant, Eciton burchelli, hosts no fewer than 100 affiliate species, including springtails, beetles, mites, and ant birds (13). Many of these affiliate organisms would hence be lost were E. burchelli to go exti ...
Ecosystem - mssarnelli
... described based on their size, distribution or density • Species: organisms of the same species share characteristics and can breed with each other • Individual Organism: one single animal of a given ...
... described based on their size, distribution or density • Species: organisms of the same species share characteristics and can breed with each other • Individual Organism: one single animal of a given ...
Chapter 5 Powerpoint ch5powerpoint
... fungi that benefit each other (in this example can't live apart); commensalism: one organism benefits from another, but neither helps nor harm that other organism, e.g., epiphyte growing on a tree (epiphyte benefits & tree not effected, unless there are many epiphytes). ...
... fungi that benefit each other (in this example can't live apart); commensalism: one organism benefits from another, but neither helps nor harm that other organism, e.g., epiphyte growing on a tree (epiphyte benefits & tree not effected, unless there are many epiphytes). ...
Invasive species: a global concern bubbling to the
... 1988). Climatic and edaphic similarity between the invader’s new and home environment may also be important (Diamond and Veitch, 1989; Holdgate, 1986; Myers, 1986). Invasive species are known to have wide-ranging effects on ecosystems, affecting both ecosystem structure and function. They may elimin ...
... 1988). Climatic and edaphic similarity between the invader’s new and home environment may also be important (Diamond and Veitch, 1989; Holdgate, 1986; Myers, 1986). Invasive species are known to have wide-ranging effects on ecosystems, affecting both ecosystem structure and function. They may elimin ...
V) Maintenance of species diversity
... community (i.e. bare substratum) such as that following glaciations or a volcanic eruption - Secondary succession – when the majority of individuals are removed by a disturbance of lesser intensity, often leaving propagules (seeds, spores, larvae) only (e.g., flooding, forest fire) - Change in commu ...
... community (i.e. bare substratum) such as that following glaciations or a volcanic eruption - Secondary succession – when the majority of individuals are removed by a disturbance of lesser intensity, often leaving propagules (seeds, spores, larvae) only (e.g., flooding, forest fire) - Change in commu ...
Effects of roads - Department of Transport and Main Roads
... In general, it appears that for most common animals, particularly the smaller species, road kills do not exert a significant pressure on population dynamics or conservation status. Schmidly and Wilkins (1977) found that less than 1% of the rodent community living on three roadsides in east Texas wer ...
... In general, it appears that for most common animals, particularly the smaller species, road kills do not exert a significant pressure on population dynamics or conservation status. Schmidly and Wilkins (1977) found that less than 1% of the rodent community living on three roadsides in east Texas wer ...
Monitoring the Endangered Species Act: Revisiting the
... they are not in our “backyard.” Fortunately, many of our delisted species are protected by other pieces of legislation. For example, gray whales fall under the auspices of the International Convention for the Regulation of Whaling and the U.S. Marine Mammal Protection Act of 1972. Other legislation ...
... they are not in our “backyard.” Fortunately, many of our delisted species are protected by other pieces of legislation. For example, gray whales fall under the auspices of the International Convention for the Regulation of Whaling and the U.S. Marine Mammal Protection Act of 1972. Other legislation ...
Island restoration
The ecological restoration of islands, or island restoration, is the application of the principles of ecological restoration to islands and island groups. Islands, due to their isolation, are home to many of the world's endemic species, as well as important breeding grounds for seabirds and some marine mammals. Their ecosystems are also very vulnerable to human disturbance and particularly to introduced species, due to their small size. Island groups such as New Zealand and Hawaii have undergone substantial extinctions and losses of habitat. Since the 1950s several organisations and government agencies around the world have worked to restore islands to their original states; New Zealand has used them to hold natural populations of species that would otherwise be unable to survive in the wild. The principal components of island restoration are the removal of introduced species and the reintroduction of native species.