CH-4 Sect 4
... a. They generally weaken but do not kill their host. b. They obtain all or part of their nutritional needs from the host. c. They neither help nor harm the host. d. They are usually smaller than the host. 16. What is ecological succession? (pg 94-97)__________________________________________________ ...
... a. They generally weaken but do not kill their host. b. They obtain all or part of their nutritional needs from the host. c. They neither help nor harm the host. d. They are usually smaller than the host. 16. What is ecological succession? (pg 94-97)__________________________________________________ ...
GLOSSARY OF TERMS
... of other species. Krumbholz - Stunted form of trees characteristic of transition zone between alpine tundra and subalpine coniferous forest. life zone - Major area of plant and animal life equivalent to a biome; transcontinental region or belt characterized by particular plants and animals and disti ...
... of other species. Krumbholz - Stunted form of trees characteristic of transition zone between alpine tundra and subalpine coniferous forest. life zone - Major area of plant and animal life equivalent to a biome; transcontinental region or belt characterized by particular plants and animals and disti ...
Species richness: Taxonomic/phylogenetic perspectives
... Losos (1996)—Reviewed phylogenetic inferences including use of phylogenies to determine which species of Anolis lizards on Antillean islands were derived from colonization vs. in situ speciation Ricklefs and Bermingham (2001)—Used phylogenies to infer timing of colonization of bird species on Antill ...
... Losos (1996)—Reviewed phylogenetic inferences including use of phylogenies to determine which species of Anolis lizards on Antillean islands were derived from colonization vs. in situ speciation Ricklefs and Bermingham (2001)—Used phylogenies to infer timing of colonization of bird species on Antill ...
Ecological Interactions
... squirrels into parts of England in the early 20th century, red squirrels had been the only species of squirrel in the country. The gray squirrels were larger and bred faster and successfully competed for resources. Within a couple years of overlap in an area, the red squirrels disappeared. ...
... squirrels into parts of England in the early 20th century, red squirrels had been the only species of squirrel in the country. The gray squirrels were larger and bred faster and successfully competed for resources. Within a couple years of overlap in an area, the red squirrels disappeared. ...
Worksheet 66 (Practice Exam 6)
... c. Group of individuals that are able to interbreed and produce viable offspring d. Group of individuals from the same species that live in the same area at the same time 11.) What is the trade-off between life expectancy and fecundity? a. If there were a larger sample size, there would not be such ...
... c. Group of individuals that are able to interbreed and produce viable offspring d. Group of individuals from the same species that live in the same area at the same time 11.) What is the trade-off between life expectancy and fecundity? a. If there were a larger sample size, there would not be such ...
Invasive Animals in Florida - UF/IFAS Office of Conferences and
... Invasive species are a serious problem! • Invasives rank second only to habitat loss as threats to native ecosystems and species in the US and Florida • Interactions with nonnative species ranked as top cause of species endangerment in the US • As much as 80% of imperiled species are threatened by ...
... Invasive species are a serious problem! • Invasives rank second only to habitat loss as threats to native ecosystems and species in the US and Florida • Interactions with nonnative species ranked as top cause of species endangerment in the US • As much as 80% of imperiled species are threatened by ...
Describe
... • Define and give examples of endangered and threatened species. • Describe several ways that species are being threatened with extinction globally. • Explain which types of threats are having the largest impact on biodiversity. • List areas of the world that have high levels of biodiversity and man ...
... • Define and give examples of endangered and threatened species. • Describe several ways that species are being threatened with extinction globally. • Explain which types of threats are having the largest impact on biodiversity. • List areas of the world that have high levels of biodiversity and man ...
File
... – due to overly selective breeding practices, the gene pool in labs has been dramatically cut down – as a result, labs are more susceptible to hip problems and disease – the average life expectancy of a lab has dropped from 15 years to 10-12 years ...
... – due to overly selective breeding practices, the gene pool in labs has been dramatically cut down – as a result, labs are more susceptible to hip problems and disease – the average life expectancy of a lab has dropped from 15 years to 10-12 years ...
... The present work represents an updated list of the Monocots (Liliopsida) present in the Venezuelan paramos. This catalog includes 17 families, 123 genera and 520 native species present in this ecosystem in Venezuela. Top monocot families at the species level in the paramos are Orchidaceae with 200, ...
the use of rodenticides for conservation efforts
... extirpation and extinction of many native and endemic species which evolved in a mammalian predator-free environment. Fortunately, practitioners have developed techniques to eradicate introduced rodents, allowing ecosystems to recover. Rodenticides have proven an effective tool in eradications, havi ...
... extirpation and extinction of many native and endemic species which evolved in a mammalian predator-free environment. Fortunately, practitioners have developed techniques to eradicate introduced rodents, allowing ecosystems to recover. Rodenticides have proven an effective tool in eradications, havi ...
Invasive Species
... of species. There is a benthic (bottom-feeding) species and a limnetic (openwater feeding) species. The benthic species forage along the bottoms of the shallow margins of the lake foraging for relatively large prey such as snails, clams and dragonfly nymphs. The benthic species eat similar food type ...
... of species. There is a benthic (bottom-feeding) species and a limnetic (openwater feeding) species. The benthic species forage along the bottoms of the shallow margins of the lake foraging for relatively large prey such as snails, clams and dragonfly nymphs. The benthic species eat similar food type ...
Presentationch5
... towards one end of the distribution may do especially well, resulting in a frequency distribution towards this advantage in future generations. • Disruptive selection- acts against individuals that have the average condition and favors individuals at the extreme ends (bimodal). Population is split i ...
... towards one end of the distribution may do especially well, resulting in a frequency distribution towards this advantage in future generations. • Disruptive selection- acts against individuals that have the average condition and favors individuals at the extreme ends (bimodal). Population is split i ...
Unit A: Biological Diversity
... the equator because the climate (warmer, wetter, more stable) can support a greater variety of plants, which, in turn, support a greater variety of animals by providing food and shelter. 9. It is in our best interests to preserve biodiversity because no one is quite sure of what losing species or ec ...
... the equator because the climate (warmer, wetter, more stable) can support a greater variety of plants, which, in turn, support a greater variety of animals by providing food and shelter. 9. It is in our best interests to preserve biodiversity because no one is quite sure of what losing species or ec ...
KEYSTONE SPECIES
... • The theory that the balance of ecosystems can rely on one keystone species was first established in 1969 by American zoology professor Robert T. Paine. Paine's research showed that removing one species, the Pisaster ochraceus sea star, from a tidal plain on Tatoosh Island in the U.S. state of Was ...
... • The theory that the balance of ecosystems can rely on one keystone species was first established in 1969 by American zoology professor Robert T. Paine. Paine's research showed that removing one species, the Pisaster ochraceus sea star, from a tidal plain on Tatoosh Island in the U.S. state of Was ...
Limits on Population
... resource in a given area Can be within species or between different species ...
... resource in a given area Can be within species or between different species ...
Lesson 7.3 Protecting Biodiversity
... The Endangered Species Act • U.S. law that protects biodiversity, passed in 1973 • Has three major parts: • Forbids governments & citizens from harming listed species & habitats • Forbids trade in products made from listed species • Requires U.S. Fish & Wildlife Service to maintain official list of ...
... The Endangered Species Act • U.S. law that protects biodiversity, passed in 1973 • Has three major parts: • Forbids governments & citizens from harming listed species & habitats • Forbids trade in products made from listed species • Requires U.S. Fish & Wildlife Service to maintain official list of ...
The Origin of Species
... populations, which are reproductively isolated from other such groups.” Ernst Mayr. Morphological species concept, the oldest and still most practical, defines a species by a unique set of structural features Ecological species defines a species in terms of its ecological niche, the set of environme ...
... populations, which are reproductively isolated from other such groups.” Ernst Mayr. Morphological species concept, the oldest and still most practical, defines a species by a unique set of structural features Ecological species defines a species in terms of its ecological niche, the set of environme ...
Handout #10 revised
... •A dust cloud high into the sky. •This cloud would block out nearly all of the sunlight, creating a long, cold, unnatural winter, drastically changing the climate for years to come. •The few plants and animals that managed to survive, such as crocodiles and early mammals, became the new rulers of a ...
... •A dust cloud high into the sky. •This cloud would block out nearly all of the sunlight, creating a long, cold, unnatural winter, drastically changing the climate for years to come. •The few plants and animals that managed to survive, such as crocodiles and early mammals, became the new rulers of a ...
Some species have major influences on community composition
... Sea otters feed on sea urchins, which, in turn, feed on kelp. ...
... Sea otters feed on sea urchins, which, in turn, feed on kelp. ...
Endangerment
... Panda ,The Blue Whale ,and Orangutan are all Endangered species. The Giant Panda and The Orangutan are both endangered because their habitat is so scarce because of humans. The Blue Whale is endangered because of habitat loss ,toxics ,and also fishing hazards such as being caught in fishing nets. We ...
... Panda ,The Blue Whale ,and Orangutan are all Endangered species. The Giant Panda and The Orangutan are both endangered because their habitat is so scarce because of humans. The Blue Whale is endangered because of habitat loss ,toxics ,and also fishing hazards such as being caught in fishing nets. We ...
Endangered Species teachers guide
... The pet trade and how/why this has effected animal species The concepts of pollution (air and water), habitat loss and destruction, and deforestation Introduce how animals can be our environmental indicators (specifically frogs and toads) When discussing the causes of endangerment, it is important t ...
... The pet trade and how/why this has effected animal species The concepts of pollution (air and water), habitat loss and destruction, and deforestation Introduce how animals can be our environmental indicators (specifically frogs and toads) When discussing the causes of endangerment, it is important t ...
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.