Vaughn.BioScience.2010
... animals are estimated to be as high as 4% per decade, five times greater than species losses in terrestrial systems, and rates for less-studied regions and faunas may be as high or higher (Dudgeon et al. 2006). Factors underlying freshwater biodiversity declines include overexploitation of both wate ...
... animals are estimated to be as high as 4% per decade, five times greater than species losses in terrestrial systems, and rates for less-studied regions and faunas may be as high or higher (Dudgeon et al. 2006). Factors underlying freshwater biodiversity declines include overexploitation of both wate ...
Land use vs. fragment size and isolation as determinants
... Rodents Marsupials Economic activity ...
... Rodents Marsupials Economic activity ...
The impacts of invasive plant species on the biodiversity of
... threats to the biodiversity of nine of them. Fifteen species are individually identified as threats (Table 1). The current and potential distributions of 33 of the 71 nonnative plant species that were investigated as potential weeds of national significance extend into Australian rangelands to some de ...
... threats to the biodiversity of nine of them. Fifteen species are individually identified as threats (Table 1). The current and potential distributions of 33 of the 71 nonnative plant species that were investigated as potential weeds of national significance extend into Australian rangelands to some de ...
The Southwest Australia Ecoregion - WWF
... The Southwest Australia Ecoregion is located in the southwest corner of Australia, one of Earth’s five most megadiverse countries. It is globally recognised as one of the planet’s major biodiversity hotspots. This recognition of global significance is based on high levels of natural diversity, parti ...
... The Southwest Australia Ecoregion is located in the southwest corner of Australia, one of Earth’s five most megadiverse countries. It is globally recognised as one of the planet’s major biodiversity hotspots. This recognition of global significance is based on high levels of natural diversity, parti ...
The paradox of enrichment in phytoplankton by induced competitive
... species are increasing with the increase in nutrient level. As a consequence, we expect an increase in the possibility of coexistence because of more nutrients for all species1. However, we also expect that the increase in nutrients leads to a more competitive ecosystem between species. According to ...
... species are increasing with the increase in nutrient level. As a consequence, we expect an increase in the possibility of coexistence because of more nutrients for all species1. However, we also expect that the increase in nutrients leads to a more competitive ecosystem between species. According to ...
11.1 The Science of Ecology
... energy at one level is available to the next level. This is represented by the pyramid in Figure 11.8. What happens to the other 90 percent of energy? It is used for metabolic processes or given off to the environment as heat. This loss of energy explains why there are rarely more than four trophic ...
... energy at one level is available to the next level. This is represented by the pyramid in Figure 11.8. What happens to the other 90 percent of energy? It is used for metabolic processes or given off to the environment as heat. This loss of energy explains why there are rarely more than four trophic ...
The Lacandon Jungle Bulwark of Biodiversity - Revistas
... Home to the most diverse mammalian fauna in Mexico, This stabilizes the climate, making the region rainy. Unforone of the most varied of the Americas, at least 117 species tunately, due to the severe deforestation of an increasing porof mammals have been recorded in the region. Thus, there tion of t ...
... Home to the most diverse mammalian fauna in Mexico, This stabilizes the climate, making the region rainy. Unforone of the most varied of the Americas, at least 117 species tunately, due to the severe deforestation of an increasing porof mammals have been recorded in the region. Thus, there tion of t ...
K-12 NC Essential Standards Covered for Scavenger Hunt
... EEn.2.6 Analyze patterns of global climate change over time. ...
... EEn.2.6 Analyze patterns of global climate change over time. ...
Article - The Darwin Initiative
... taxa are prized for the international floral industry where they form part of bouquets. The most highly sought species is currently C. ernesti-augustii, known locally as fishtail due to the shape of its leaf. Traditionally leaves of this species have been harvested from natural forests in Guatemala ...
... taxa are prized for the international floral industry where they form part of bouquets. The most highly sought species is currently C. ernesti-augustii, known locally as fishtail due to the shape of its leaf. Traditionally leaves of this species have been harvested from natural forests in Guatemala ...
edge responses of tropical and temperate birds
... in Both Regions.—Plants favored by non-insectivores, including fruit and nectar producers, are often more common in high-light areas like gaps and edges, than in intact forest (Stiles 1975, Levey 1988b, Rodewald and Brittingham 2004). Thus, where resources are concentrated at edges, it is predicted ...
... in Both Regions.—Plants favored by non-insectivores, including fruit and nectar producers, are often more common in high-light areas like gaps and edges, than in intact forest (Stiles 1975, Levey 1988b, Rodewald and Brittingham 2004). Thus, where resources are concentrated at edges, it is predicted ...
Roadside habitats: effects on diversity and composition of plant
... We sampled arthropods (beetles, spiders, scorpions, diplopods) with pitfall traps, 10 cm in diameter and 10 cm in depth, filled with *100 ml of ethylene glycol to prevent predation and decomposition of specimens. In each plot, 12 pitfall traps were buried flush with the ground surface in a 10 9 17 m ...
... We sampled arthropods (beetles, spiders, scorpions, diplopods) with pitfall traps, 10 cm in diameter and 10 cm in depth, filled with *100 ml of ethylene glycol to prevent predation and decomposition of specimens. In each plot, 12 pitfall traps were buried flush with the ground surface in a 10 9 17 m ...
PDF - South Coast Wildlands
... Habitat loss and fragmentation are the leading threats to biodiversity, both globally and in southern California. Efforts to combat these threats must focus on conserving well-connected networks of large wildland areas where natural ecological and evolutionary processes can continue operating over l ...
... Habitat loss and fragmentation are the leading threats to biodiversity, both globally and in southern California. Efforts to combat these threats must focus on conserving well-connected networks of large wildland areas where natural ecological and evolutionary processes can continue operating over l ...
Presentation
... amount of plant and animal species, many of which are endangered ● Wetland systems also enhance water quality and support the structural stability ● These systems are often threatened by anthropogenic pressures ...
... amount of plant and animal species, many of which are endangered ● Wetland systems also enhance water quality and support the structural stability ● These systems are often threatened by anthropogenic pressures ...
the$impact$of$invasive$alien$species$ on$native
... Invasive! alien! species! (IAS)! are! considered! the! second! greatest! threat! to! biodiversity! globally,! second! only! to! habitat! loss! and! fragmentation! (MA!2005).!Besides!being!one!of!the!first!cause!of! animal! extinctions! (Clavero! &! GarciaMBerthou! 2005),! IAS! also! severely! affect ...
... Invasive! alien! species! (IAS)! are! considered! the! second! greatest! threat! to! biodiversity! globally,! second! only! to! habitat! loss! and! fragmentation! (MA!2005).!Besides!being!one!of!the!first!cause!of! animal! extinctions! (Clavero! &! GarciaMBerthou! 2005),! IAS! also! severely! affect ...
TYPES of MARINE PROTECTED AREAS
... To Foster Education To Promote Research To Improve Fisheries To Allow for Recreation To Protect Endangered Species To Protect Ecosystems and Biodiversity ...
... To Foster Education To Promote Research To Improve Fisheries To Allow for Recreation To Protect Endangered Species To Protect Ecosystems and Biodiversity ...
- U.S.
... (NEPA) does not require specific levels of protection for marine mammal or other species. This Act simply requires that the environmental effects of proposed major federal actions be analyzed with respect to their effects on the human environment (including manatees) and that alternatives be conside ...
... (NEPA) does not require specific levels of protection for marine mammal or other species. This Act simply requires that the environmental effects of proposed major federal actions be analyzed with respect to their effects on the human environment (including manatees) and that alternatives be conside ...
Integrated Ecological- Economic Models
... (2005) estimated annual damages at $120 billion in the United States. In economics, pollution is usually associated with human health, but its impact is so extensive that biogeochemical cycles are being altered. Industrial nitrogen fixation has doubled nitrogen in the environment, which substantiall ...
... (2005) estimated annual damages at $120 billion in the United States. In economics, pollution is usually associated with human health, but its impact is so extensive that biogeochemical cycles are being altered. Industrial nitrogen fixation has doubled nitrogen in the environment, which substantiall ...
Evolution, Biological Communities, and Species Interactions
... bamboo, except other pandas, yet the species is endangered, primarily due to shrinking habitat. Giant pandas, like many species on earth, are habitat specialists. Specialists have more exacting habitat requirements, tend to have lower reproductive rates, and care for their young longer. They may be ...
... bamboo, except other pandas, yet the species is endangered, primarily due to shrinking habitat. Giant pandas, like many species on earth, are habitat specialists. Specialists have more exacting habitat requirements, tend to have lower reproductive rates, and care for their young longer. They may be ...
articolo completo - Società Italiana Scienza della
... more or less important role in the ecosystem, thus many of them are not indispensable for it to survive, as the bolts of a plane. If we lose a few of them, the plane will be able to continue flying but if we keep losing bolts, the moment will come the moment in which the loss of one bolt will mean t ...
... more or less important role in the ecosystem, thus many of them are not indispensable for it to survive, as the bolts of a plane. If we lose a few of them, the plane will be able to continue flying but if we keep losing bolts, the moment will come the moment in which the loss of one bolt will mean t ...
Evolution of weaponry in female bovids
... using forward stepwise model selection procedures (see below). These models allow different predictor variables that relate to a specific hypothesis regarding the evolution of horns to compete against each other for inclusion in the final model. We will outline each model selection exercise in order ...
... using forward stepwise model selection procedures (see below). These models allow different predictor variables that relate to a specific hypothesis regarding the evolution of horns to compete against each other for inclusion in the final model. We will outline each model selection exercise in order ...
Biodiversity and Ecosystem Function
... Diversity effects in small-scale, short-term experiments may underestimate the impacts of diversity loss on the functioning of more natural ecosystems More environmental heterogeneity may increase opportunities for species to exploit more niches ...
... Diversity effects in small-scale, short-term experiments may underestimate the impacts of diversity loss on the functioning of more natural ecosystems More environmental heterogeneity may increase opportunities for species to exploit more niches ...
What is ecology?
... • The study of interactions that take place between organisms and their environment. • It explains how living organisms affect each other and the world they live in. copyright cmassengale ...
... • The study of interactions that take place between organisms and their environment. • It explains how living organisms affect each other and the world they live in. copyright cmassengale ...
Lesson Plan
... 1. Population density is the measure of how crowded organisms are in their environment. Because organisms compete for resources, keeping a balance is important. If the population is too high, some organisms will die. 2. A population can also be classified by its age. The three groups of ages are pre ...
... 1. Population density is the measure of how crowded organisms are in their environment. Because organisms compete for resources, keeping a balance is important. If the population is too high, some organisms will die. 2. A population can also be classified by its age. The three groups of ages are pre ...
Download PDF (3.8 MB)
... The vision of the Vermont Biodiversity Project is to maintain ecological integrity in a manner that insures the long-term viability of all native species and natural community types in Vermont within their natural ranges The Vermont Biodiversity Project established specific conservation goals for bi ...
... The vision of the Vermont Biodiversity Project is to maintain ecological integrity in a manner that insures the long-term viability of all native species and natural community types in Vermont within their natural ranges The Vermont Biodiversity Project established specific conservation goals for bi ...
Habitat conservation
Habitat conservation is a land management practice that seeks to conserve, protect and restore habitat areas for wild plants and animals, especially conservation reliant species, and prevent their extinction, fragmentation or reduction in range. It is a priority of many groups that cannot be easily characterized in terms of any one ideology.