Plight of the Pollinators: Factors of Pollinator Decline
... flower to flower by pollinating animals such as birds, bees, bats, butterflies, moths, beetles, or other animals, or by the wind.” –Pollinator Partnership ...
... flower to flower by pollinating animals such as birds, bees, bats, butterflies, moths, beetles, or other animals, or by the wind.” –Pollinator Partnership ...
Beyond the Book
... Diseases and natural disasters can leave missing links in food chains. But more often, people are the cause of broken food chains. In the 1800s, people hunted sea otters for their warm, waterproof fur. The animals ...
... Diseases and natural disasters can leave missing links in food chains. But more often, people are the cause of broken food chains. In the 1800s, people hunted sea otters for their warm, waterproof fur. The animals ...
The Norwegian Nature Index - Science for the Environment 2015
... Norwegian Institute for Water Research (NIVA) Norwegian Forest and Landscape Institute Norwegian Institute for Agricultural and Environmental Research (Bioforsk) Norwegian Institute for Nature Research (NINA) ...
... Norwegian Institute for Water Research (NIVA) Norwegian Forest and Landscape Institute Norwegian Institute for Agricultural and Environmental Research (Bioforsk) Norwegian Institute for Nature Research (NINA) ...
Marine Ecology Lecture, lecture 4
... • These resources can affect population growth if they are in short supply. • These resources that have the ability to affect the growth of a population are called limiting resources. • Thus your ABIOTIC FACTORS can be limiting! ...
... • These resources can affect population growth if they are in short supply. • These resources that have the ability to affect the growth of a population are called limiting resources. • Thus your ABIOTIC FACTORS can be limiting! ...
Contents - Beck-Shop
... In 1735, a Swedish scientist called Carl Linnaeus decided to give every species a two-word Latin name. Linnaeus’s naming system meant that every scientist could use the same name for the same species. We still use Linnaeus’s system today. The Latin names of species are written in italics. For exampl ...
... In 1735, a Swedish scientist called Carl Linnaeus decided to give every species a two-word Latin name. Linnaeus’s naming system meant that every scientist could use the same name for the same species. We still use Linnaeus’s system today. The Latin names of species are written in italics. For exampl ...
Part I: Ecological Succession
... type of succession begins on bare rock. For example, a glacier is a huge body of ice that can flow. As it flows, it scours the land beneath it, leaving behind exposed rock. For plants to move into that area, soil must be formed first. Soil formation may take years, and the first plants to the area w ...
... type of succession begins on bare rock. For example, a glacier is a huge body of ice that can flow. As it flows, it scours the land beneath it, leaving behind exposed rock. For plants to move into that area, soil must be formed first. Soil formation may take years, and the first plants to the area w ...
Cycads
... It has been estimated that with the ongoing rate of illegal cycad trade in South Africa around 25 species will become extinct in the immediate to near future. According to the last IUCN red data listing assessment for South African cycads: 3 are Extinct in the Wild; 12 Critically Endangered (32%); 4 ...
... It has been estimated that with the ongoing rate of illegal cycad trade in South Africa around 25 species will become extinct in the immediate to near future. According to the last IUCN red data listing assessment for South African cycads: 3 are Extinct in the Wild; 12 Critically Endangered (32%); 4 ...
doc_207 - mar athanasius college
... wild crop varieties have been replaced by a few hybrid or improved species during the green revolution. It resulted in the loss of genetic resources of our crop plants, especially wheat and rice. Along with these plants, microbial flora has also been lost due to the over use of agro-chemicals (ferti ...
... wild crop varieties have been replaced by a few hybrid or improved species during the green revolution. It resulted in the loss of genetic resources of our crop plants, especially wheat and rice. Along with these plants, microbial flora has also been lost due to the over use of agro-chemicals (ferti ...
Amphibians, Reptiles, Birds and Mammals of the York River
... mammal populations and associated predation, and 4) human disturbance. The aggressive invasive plant, common reed, is spreading throughout Goodwin Islands and many other areas in the York River area. Although some high marshes within this system have not been degraded to the same extent as many area ...
... mammal populations and associated predation, and 4) human disturbance. The aggressive invasive plant, common reed, is spreading throughout Goodwin Islands and many other areas in the York River area. Although some high marshes within this system have not been degraded to the same extent as many area ...
Ohio Journal of Science
... INTRODUCTION The Revillagigedo Archipelago of México, with the incidence of endemic species reaching almost 30%, is an important spot for consideration by world diversity conservation programs (Ortega et al. 1992). For instance 90% of terrestrial avian fauna are unique at the level of subspecies, sp ...
... INTRODUCTION The Revillagigedo Archipelago of México, with the incidence of endemic species reaching almost 30%, is an important spot for consideration by world diversity conservation programs (Ortega et al. 1992). For instance 90% of terrestrial avian fauna are unique at the level of subspecies, sp ...
Invasive Species of Lakes Erie and Ontario
... An unusual form of pollution is impacting Lakes Erie and Ontario but has nothing to do with industrial discharges, municipal sewage or chemical rain. Instead, this pollution is in the form of non-native plants and animals that have entered the Great Lakes ecosystem and caused dramatic changes. These ...
... An unusual form of pollution is impacting Lakes Erie and Ontario but has nothing to do with industrial discharges, municipal sewage or chemical rain. Instead, this pollution is in the form of non-native plants and animals that have entered the Great Lakes ecosystem and caused dramatic changes. These ...
Population and Community Ecology
... in extinction. Reduced numbers of cheetahs resulted in a lower number of reproducing individuals and high levels of inbreeding. Therefore, if one cheetah is susceptible to an infectious disease, it is likely that all cheetahs will be susceptible to the disease. Therefore, if a disease is introduced ...
... in extinction. Reduced numbers of cheetahs resulted in a lower number of reproducing individuals and high levels of inbreeding. Therefore, if one cheetah is susceptible to an infectious disease, it is likely that all cheetahs will be susceptible to the disease. Therefore, if a disease is introduced ...
Chapters 50 through 55
... a smaller location but could take up home in just about anything. These bees also become very defensive of their hive and that’s when they attack people– when they feel threatened. The abiotic factors that allowed these bees to migrate to North America from Brazil are the ‘easy to find’ places where ...
... a smaller location but could take up home in just about anything. These bees also become very defensive of their hive and that’s when they attack people– when they feel threatened. The abiotic factors that allowed these bees to migrate to North America from Brazil are the ‘easy to find’ places where ...
Biodiversity Conservation and Control of Introduced Species in
... authorities must also obtain a licence before taking flora. However, the taking of protected flora without a licence is not an offence if the taking occurred as an unavoidable incident or consequence in the performance of any right, power or authority conferred upon the person under another Act. Abo ...
... authorities must also obtain a licence before taking flora. However, the taking of protected flora without a licence is not an offence if the taking occurred as an unavoidable incident or consequence in the performance of any right, power or authority conferred upon the person under another Act. Abo ...
Biodiversity – Threats
... involving several generations, from California and Mexico, respectively, northward and back to small overwintering areas where they are threatened with habitat loss. The loss of unique behaviours such as this will take a toll on overall diversity, and indeed can have long-term cascading effects on ot ...
... involving several generations, from California and Mexico, respectively, northward and back to small overwintering areas where they are threatened with habitat loss. The loss of unique behaviours such as this will take a toll on overall diversity, and indeed can have long-term cascading effects on ot ...
A Closer Look at Whooping Cranes
... An example of an exotic, invasive species is the zebra mussel. The zebra mussel was originally found in Europe and Asia but was introduced to the Mississippi River and Great Lakes in the 1980s by shipping vessels as they traveled across the ocean. There are many native mussels that have been living ...
... An example of an exotic, invasive species is the zebra mussel. The zebra mussel was originally found in Europe and Asia but was introduced to the Mississippi River and Great Lakes in the 1980s by shipping vessels as they traveled across the ocean. There are many native mussels that have been living ...
Exercise 13: Niche versus Distribution Modeling
... distribution/niche modeling, and although a wide variety of papers have attempted to address the issue, to date there is no widely-applicable accepted method. Perhaps as a result, most niche modeling is conducted on the basis of the Eltonian noise hypothesis, which posits that biotic interactions de ...
... distribution/niche modeling, and although a wide variety of papers have attempted to address the issue, to date there is no widely-applicable accepted method. Perhaps as a result, most niche modeling is conducted on the basis of the Eltonian noise hypothesis, which posits that biotic interactions de ...
Guidelines for eradication of introduced mammals from breeding
... concluded that the impact of rats was least on large, surface-nesting seabirds such as albatrosses, frigatebirds and larids, and greatest on small burrow-nesters such as storm petrels; several studies indicated an impact of rats on breeding success of Procellaria petrels; and, kiore were known to ha ...
... concluded that the impact of rats was least on large, surface-nesting seabirds such as albatrosses, frigatebirds and larids, and greatest on small burrow-nesters such as storm petrels; several studies indicated an impact of rats on breeding success of Procellaria petrels; and, kiore were known to ha ...
ChiroSurveillance
... annual economic value of U.S. crop losses by invasive insect pests: $13 billion annual costs for associated control measures: $500 million invasive species management strategies evolve with time since introduction management efficiency decreases over time Simberloff et al. 2013 ...
... annual economic value of U.S. crop losses by invasive insect pests: $13 billion annual costs for associated control measures: $500 million invasive species management strategies evolve with time since introduction management efficiency decreases over time Simberloff et al. 2013 ...
Community Diversity
... the ability to reproduce quickly is crucial. There is little advantage in adaptations that permit successful competition with other organisms, because the environment is likely to change again. Traits that are thought to be characteristic of r-selection include: high fecundity, small body size, earl ...
... the ability to reproduce quickly is crucial. There is little advantage in adaptations that permit successful competition with other organisms, because the environment is likely to change again. Traits that are thought to be characteristic of r-selection include: high fecundity, small body size, earl ...
article in press
... United States. Although translocated species can also have significant impacts, this assessment is limited to alien species that did not originate within the United States or its territories. ...
... United States. Although translocated species can also have significant impacts, this assessment is limited to alien species that did not originate within the United States or its territories. ...
Ecology and Human Impact Test Takers Review
... ecosystem of a river. Since then, the population of a native fish species has declined. This situation is an example of an (1) ecosystem that has recovered (2) ecosystem altered through the activities of an organism (3) environmental impact caused by physical factors (4) ecological niche without com ...
... ecosystem of a river. Since then, the population of a native fish species has declined. This situation is an example of an (1) ecosystem that has recovered (2) ecosystem altered through the activities of an organism (3) environmental impact caused by physical factors (4) ecological niche without com ...
File
... Parasitism-one species uses a another as a host to gain nutrients in a way that it harms the host. Usually on or in the host Mutualism- interactions between two different species in which both species benefit from each other Commensalism- interaction between 2 species where one species benefit ...
... Parasitism-one species uses a another as a host to gain nutrients in a way that it harms the host. Usually on or in the host Mutualism- interactions between two different species in which both species benefit from each other Commensalism- interaction between 2 species where one species benefit ...
The distribution of Apsilochorema Ulmer, 1907: biogeographic
... The ancestral species live in the north. This exactly is the problem, because we have to find an interpretation for this mysterious pattern. Up to now, two hypotheses have been proposed to explain the occurrence of Apsilochorema in Asia. Both asserted the ancestry of the Asian species. Ross (1951, 1 ...
... The ancestral species live in the north. This exactly is the problem, because we have to find an interpretation for this mysterious pattern. Up to now, two hypotheses have been proposed to explain the occurrence of Apsilochorema in Asia. Both asserted the ancestry of the Asian species. Ross (1951, 1 ...
Some of these slides have been borrowed from Dr. Paul Lewis, Dr
... History of “Species” • Before John Ray and Linnaeus, some viewed species as morphotypes and even believed that an organism could change species over the course of their life. • the species class was seen as having an unchanging essence. • Linnaeus promoted the fixed nature of species. • Variation w ...
... History of “Species” • Before John Ray and Linnaeus, some viewed species as morphotypes and even believed that an organism could change species over the course of their life. • the species class was seen as having an unchanging essence. • Linnaeus promoted the fixed nature of species. • Variation w ...
Introduced species
An introduced, alien, exotic, non-indigenous, or non-native species, or simply an introduction, is a species living outside its native distributional range, which has arrived there by human activity, either deliberate or accidental. Non-native species can have various effects on the local ecosystem. Introduced species that become established and spread beyond the place of introduction are called invasive species. Some have a negative effect on a local ecosystem. Some introduced species may have no negative effect or only minor impact. Some species have been introduced intentionally to combat pests. They are called biocontrols and may be regarded as beneficial as an alternative to pesticides in agriculture for example. In some instances the potential for being beneficial or detrimental in the long run remains unknown. A list of some introduced species is given in a separate article.The effects of introduced species on natural environments have gained much scrutiny from scientists, governments, farmers and others.