Shellfish-related illnesses closely monitored
... René Lesage reminisced that “In 1998, our objective was to help protect 35 species of wildlife and plants at risk. Today, five years later, this objective has been met and even surpassed, since we have improved our knowledge of close to 50 species and taken action to protect them.” If the St. Lawren ...
... René Lesage reminisced that “In 1998, our objective was to help protect 35 species of wildlife and plants at risk. Today, five years later, this objective has been met and even surpassed, since we have improved our knowledge of close to 50 species and taken action to protect them.” If the St. Lawren ...
Why Marine Islands Are Farther Apart in the Tropics.
... barriers due to physiological tolerances are probably exacerbated by biotic resistance from enemies—competitors, predators, herbivores, parasites, and pathogens—that are more diverse and active in the warmer environments of the tropics (e.g., Schemske et. al. 2009). This biotic reinforcement should ...
... barriers due to physiological tolerances are probably exacerbated by biotic resistance from enemies—competitors, predators, herbivores, parasites, and pathogens—that are more diverse and active in the warmer environments of the tropics (e.g., Schemske et. al. 2009). This biotic reinforcement should ...
Amphibian Survival Alliance (ASA)
... Quito Water Authority that will both protect endangered species and secure an important source of drinking water for Ecuador’s capital city. The total protected area by this group amounts to approximately 270,000 acres. Antisana is of critical global importance for biodiversity and highlighted as an ...
... Quito Water Authority that will both protect endangered species and secure an important source of drinking water for Ecuador’s capital city. The total protected area by this group amounts to approximately 270,000 acres. Antisana is of critical global importance for biodiversity and highlighted as an ...
Amphibian Survival Alliance (ASA)
... Quito Water Authority that will both protect endangered species and secure an important source of drinking water for Ecuador’s capital city. The total protected area by this group amounts to approximately 270,000 acres. Antisana is of critical global importance for biodiversity and highlighted as an ...
... Quito Water Authority that will both protect endangered species and secure an important source of drinking water for Ecuador’s capital city. The total protected area by this group amounts to approximately 270,000 acres. Antisana is of critical global importance for biodiversity and highlighted as an ...
TESS-EEA(CHM)2009 - Biodiversity Informations System for
... hedgerow loss & (vi) predation. All can be addressed, in many cases by deintensification measures that have low cost ...
... hedgerow loss & (vi) predation. All can be addressed, in many cases by deintensification measures that have low cost ...
CV.pdf - Brian Klingbeil
... priorities for saltmarsh birds and their habitats across northeastern United States. Research incorporates data on species distributions, abundance and demography in combination with remote sensing and associated spatial data to prioritize locations for conservation. Results of prioritization are co ...
... priorities for saltmarsh birds and their habitats across northeastern United States. Research incorporates data on species distributions, abundance and demography in combination with remote sensing and associated spatial data to prioritize locations for conservation. Results of prioritization are co ...
Managing ecosystem services and biodiversity conservation in
... to work sympathetically, it is essential that we identify real threats and opportunities when managing for both. Misunder- ...
... to work sympathetically, it is essential that we identify real threats and opportunities when managing for both. Misunder- ...
Name:
... 77. What areas of the world have high levels of biodiversity and many threats to species? 78. How does the amount of biodiversity in the United States compare to that of the rest of the world? 79. What four types of efforts have been employed to save individual species? 80. What are the advantages ...
... 77. What areas of the world have high levels of biodiversity and many threats to species? 78. How does the amount of biodiversity in the United States compare to that of the rest of the world? 79. What four types of efforts have been employed to save individual species? 80. What are the advantages ...
The relationship between biodiversity and ecosystem functioning in
... biodiversity can act as biological insurance against potential disruptions caused by environmental changes. However, these studies generally concern a single trophic level, primary producers for the most part. Changes in biodiversity also affect ecosystem functioning through trophic interactions. Her ...
... biodiversity can act as biological insurance against potential disruptions caused by environmental changes. However, these studies generally concern a single trophic level, primary producers for the most part. Changes in biodiversity also affect ecosystem functioning through trophic interactions. Her ...
Special Feature - Cedar Creek Ecosystem Science Reserve
... Abstract. The ecosystem consequences of dramatic declines or changes in biodiversity have spurred considerable research and tremendous debate that has rekindled most of the major conflicts in ecology, creating a sense of déjà vu. These conflicts include whether ecosystem or community ecology provi ...
... Abstract. The ecosystem consequences of dramatic declines or changes in biodiversity have spurred considerable research and tremendous debate that has rekindled most of the major conflicts in ecology, creating a sense of déjà vu. These conflicts include whether ecosystem or community ecology provi ...
Title: Fine-scale and Microhabitat Factors Influencing Terrestrial
... Previous studies of amphibian communities in undisturbed Appalachian forests have determined that microhabitat parameters like soil chemistry (Jaeger 1971a, Wyman 1988), abundance of natural cover (i. e. coarse woody debris [CWD], rocks, and leaf litter; McKenny et al. 2006), and forest composition/ ...
... Previous studies of amphibian communities in undisturbed Appalachian forests have determined that microhabitat parameters like soil chemistry (Jaeger 1971a, Wyman 1988), abundance of natural cover (i. e. coarse woody debris [CWD], rocks, and leaf litter; McKenny et al. 2006), and forest composition/ ...
PPT File
... Essential Questions? What are invasive species? What is their impact on the environment? What are some examples of invasive species? Invasive species: Intentionally or accidentally imported organisms to where they have no natural ...
... Essential Questions? What are invasive species? What is their impact on the environment? What are some examples of invasive species? Invasive species: Intentionally or accidentally imported organisms to where they have no natural ...
Local-regional relationships and the geographical distribution of
... neutral (noninteractive) community. On the other hand, Type II relationships are not predicted by noninteractive models, so they can be interpreted as indirect evidence of ecological interactions; however, pseudo-saturating patterns can be generated by errors in the sampling or analytical procedures ...
... neutral (noninteractive) community. On the other hand, Type II relationships are not predicted by noninteractive models, so they can be interpreted as indirect evidence of ecological interactions; however, pseudo-saturating patterns can be generated by errors in the sampling or analytical procedures ...
Herbivory, phenotypic variation, and reproductive barriers in fucoids
... Along the shores of the Northern hemisphere Fucus (Phaeophyceae) species are a prominent presence, providing substrate, shelter, and food for many species. Fucus evanescens, a nonindigenous species (NIS) in Sweden, and F. radicans, a recently described species that so far has only been found inside ...
... Along the shores of the Northern hemisphere Fucus (Phaeophyceae) species are a prominent presence, providing substrate, shelter, and food for many species. Fucus evanescens, a nonindigenous species (NIS) in Sweden, and F. radicans, a recently described species that so far has only been found inside ...
Conservation Outside Protected Areas
... threaten the survival of endangered species. In the United States, the Bureau of Land Management oversees more than 110 million ha of multiple-use land, including 83% of the state of Nevada and large areas of Utah, Wyoming, Oregon, Idaho, and other western states. In the past, these lands were prima ...
... threaten the survival of endangered species. In the United States, the Bureau of Land Management oversees more than 110 million ha of multiple-use land, including 83% of the state of Nevada and large areas of Utah, Wyoming, Oregon, Idaho, and other western states. In the past, these lands were prima ...
Biodiversity and Ecosystem Functioning Further
... and a “selection effect,” also proposed by Aarssen (1997), for the Cedar Creek biodiversity experiments. This selection effect was hypothesized to result from differences in the fundamental productivities of species, as revealed in monocultures, and from the greater likelihood that a more productive ...
... and a “selection effect,” also proposed by Aarssen (1997), for the Cedar Creek biodiversity experiments. This selection effect was hypothesized to result from differences in the fundamental productivities of species, as revealed in monocultures, and from the greater likelihood that a more productive ...
Ecological Questions
... • state one reason why recycling is important • identify two natural resources or products made from natural resources that can be recycled ...
... • state one reason why recycling is important • identify two natural resources or products made from natural resources that can be recycled ...
Towards a food web perspective on biodiversity and ecosystem
... they have led ecologists to potentially erroneous conclusions. However, what is clear is that a large body of research in ecology has shown that interactions of species across trophic levels can have cascading impacts that influence the diversity and biomass of organisms at numerous levels in a food ...
... they have led ecologists to potentially erroneous conclusions. However, what is clear is that a large body of research in ecology has shown that interactions of species across trophic levels can have cascading impacts that influence the diversity and biomass of organisms at numerous levels in a food ...
Biodiversity: Who Cares
... displaced rural inhabitants onto hillside slums or into other ecologically fragile areas. The ultimate consequence is a loss in biodiversity. In fact, annual species extinction is estimated to be somewhere between 20 and 30 thousand per year, or between 50 and 80 per day. Based on these estimates, m ...
... displaced rural inhabitants onto hillside slums or into other ecologically fragile areas. The ultimate consequence is a loss in biodiversity. In fact, annual species extinction is estimated to be somewhere between 20 and 30 thousand per year, or between 50 and 80 per day. Based on these estimates, m ...
Threatened Species Conservation Act Statutory Review
... The term ‘biological diversity’ (or ‘biodiversity’ for short) encompasses the variability among living organisms including genetic diversity within species, the diversity between species and the diversity of ecosystems. Biodiversity is the foundation of life on Earth. It is essential for our existen ...
... The term ‘biological diversity’ (or ‘biodiversity’ for short) encompasses the variability among living organisms including genetic diversity within species, the diversity between species and the diversity of ecosystems. Biodiversity is the foundation of life on Earth. It is essential for our existen ...
From Energy Gradient and Natural Selection to Biodiversity and
... Abstract: The purpose of this paper is to incorporate well-established ecological principles into a foodweb model consisting of four trophic levels --- abiotic resources, plants, herbivores, and carnivores. The underlining principles include Kimura's neutral theory of genetic evolution, Liebig's Law ...
... Abstract: The purpose of this paper is to incorporate well-established ecological principles into a foodweb model consisting of four trophic levels --- abiotic resources, plants, herbivores, and carnivores. The underlining principles include Kimura's neutral theory of genetic evolution, Liebig's Law ...
WWF Ecoregions - Verified Conservation Areas
... gives way to cold nights because there is no insulation provided by humidity and cloud cover. Not surprisingly, the diversity of climatic conditions - though quite harsh - supports a rich array of habitats. Many of these habitats are ephemeral in nature reflecting the paucity and seasonality of avai ...
... gives way to cold nights because there is no insulation provided by humidity and cloud cover. Not surprisingly, the diversity of climatic conditions - though quite harsh - supports a rich array of habitats. Many of these habitats are ephemeral in nature reflecting the paucity and seasonality of avai ...
Synergies among extinction drivers under global change
... a species to deterministic threats [4]. As such, recent simulation [5] and meta-analytic studies [16] have found little evidence for a correlation between MVP estimates and ecological or life-history traits (including body size). The only generalisation to emerge thus far from the collation of almos ...
... a species to deterministic threats [4]. As such, recent simulation [5] and meta-analytic studies [16] have found little evidence for a correlation between MVP estimates and ecological or life-history traits (including body size). The only generalisation to emerge thus far from the collation of almos ...
Biodiversity and Ecosystem Functioning - annurev-ecolsys
... and a “selection effect,” also proposed by Aarssen (1997), for the Cedar Creek biodiversity experiments. This selection effect was hypothesized to result from differences in the fundamental productivities of species, as revealed in monocultures, and from the greater likelihood that a more productive ...
... and a “selection effect,” also proposed by Aarssen (1997), for the Cedar Creek biodiversity experiments. This selection effect was hypothesized to result from differences in the fundamental productivities of species, as revealed in monocultures, and from the greater likelihood that a more productive ...
View PDF - Fungal diversity
... means of providing evidence of the extent of fungal diversity. The challenge is therefore to develop protocols which are efficient, reliable, repeatable and comparable. In order to achieve these aims, sampling strategies must be tightly defined, and designed to provide thorough analysis of a restric ...
... means of providing evidence of the extent of fungal diversity. The challenge is therefore to develop protocols which are efficient, reliable, repeatable and comparable. In order to achieve these aims, sampling strategies must be tightly defined, and designed to provide thorough analysis of a restric ...
Biodiversity
Global Biodiversity is the variety of different types of life found on Earth and the variations within species. It is a measure of the variety of organisms present in different ecosystems. This can refer to genetic variation, ecosystem variation, or species variation (number of species) within an area, biome, or planet. Terrestrial biodiversity tends to be highest near the equator, which seems to be the result of the warm climate and high primary productivity. Biodiversity is not distributed evenly on Earth. It is the richest in the tropics. Marine biodiversity tends to be highest along coasts in the Western Pacific, where sea surface temperature is highest and in the mid-latitudinal band in all oceans. There are latitudinal gradients in species diversity. Biodiversity generally tends to cluster in hotspots, and has been increasing through time but will be likely to slow in the future.The number and variety of plants, animals and other organisms that exist is known as biodiversity. It is an essential component of nature and it ensures the survival of human species by providing food, fuel, shelter, medicines and other resources to mankind. The richness of biodiversity depends on the climatic conditions and area of the region. All species of plants taken together are known as flora and about 70,000 species of plants are known till date. All species of animals taken together are known as fauna which includes birds, mammals, fish, reptiles, insects, crustaceans, molluscs, etc.Rapid environmental changes typically cause mass extinctions. More than 99 percent of all species, amounting to over five billion species, that ever lived on Earth are estimated to be extinct. Estimates on the number of Earth's current species range from 10 million to 14 million, of which about 1.2 million have been documented and over 86 percent have not yet been described. The total amount of related DNA base pairs on Earth is estimated at 5.0 x 1037, and weighs 50 billion tonnes. In comparison, the total mass of the biosphere has been estimated to be as much as 4 TtC (trillion tons of carbon).The age of the Earth is about 4.54 billion years old. The earliest undisputed evidence of life on Earth dates at least from 3.5 billion years ago, during the Eoarchean Era after a geological crust started to solidify following the earlier molten Hadean Eon. There are microbial mat fossils found in 3.48 billion-year-old sandstone discovered in Western Australia. Other early physical evidence of a biogenic substance is graphite in 3.7 billion-year-old metasedimentary rocks discovered in Western Greenland. Since life began on Earth, five major mass extinctions and several minor events have led to large and sudden drops in biodiversity. The Phanerozoic eon (the last 540 million years) marked a rapid growth in biodiversity via the Cambrian explosion—a period during which the majority of multicellular phyla first appeared. The next 400 million years included repeated, massive biodiversity losses classified as mass extinction events. In the Carboniferous, rainforest collapse led to a great loss of plant and animal life. The Permian–Triassic extinction event, 251 million years ago, was the worst; vertebrate recovery took 30 million years. The most recent, the Cretaceous–Paleogene extinction event, occurred 65 million years ago and has often attracted more attention than others because it resulted in the extinction of the dinosaurs.The period since the emergence of humans has displayed an ongoing biodiversity reduction and an accompanying loss of genetic diversity. Named the Holocene extinction, the reduction is caused primarily by human impacts, particularly habitat destruction. Conversely, biodiversity impacts human health in a number of ways, both positively and negatively.The United Nations designated 2011–2020 as the United Nations Decade on Biodiversity.