Biogeography
... • Spreading away from sites of initial establishment • Often with negative ecological and economic consequences ...
... • Spreading away from sites of initial establishment • Often with negative ecological and economic consequences ...
Time Number of species
... "normal" times, if it succumbs to extinction during a massive climate change, it will play no further role in evolution. ...
... "normal" times, if it succumbs to extinction during a massive climate change, it will play no further role in evolution. ...
Species: Jefferson Salamander (Ambystoma jeffersonianum) Global
... Current threats to the species include alteration of vernal pool breeding sites, loss and alteration of forested habitats surrounding pools, road mortality during migration to and from breeding sites, and acidification of vernal pools due to acid deposition (NatureServe ...
... Current threats to the species include alteration of vernal pool breeding sites, loss and alteration of forested habitats surrounding pools, road mortality during migration to and from breeding sites, and acidification of vernal pools due to acid deposition (NatureServe ...
Keystone Species Project
... e. What community interactions (ex: intraspecific competition, interspecific competition, mutualism, parasitism, commensalism) occur between members of the community in which your species lives? (Identify and describe 3 specific examples) f. What major role does your species play in its ecosystem th ...
... e. What community interactions (ex: intraspecific competition, interspecific competition, mutualism, parasitism, commensalism) occur between members of the community in which your species lives? (Identify and describe 3 specific examples) f. What major role does your species play in its ecosystem th ...
Paine
... Exotic species have dramatic impacts on communities because they were outside the evolutionary experience of local prey populations. Nile Perch (Lates nilotica) exotic fish predator in Lake Victoria. Fish fauna dramatically reduced. ...
... Exotic species have dramatic impacts on communities because they were outside the evolutionary experience of local prey populations. Nile Perch (Lates nilotica) exotic fish predator in Lake Victoria. Fish fauna dramatically reduced. ...
Biology 5865 – Conservation Biology
... potentially interbreeding natural populations, which are reproductively isolated from other such groups (Mayr 1942 from Hunter 1996, p. 32) ...
... potentially interbreeding natural populations, which are reproductively isolated from other such groups (Mayr 1942 from Hunter 1996, p. 32) ...
Managing for tree species diversity in a changing climate
... function across levels of ecological organization • genes (different seed sources) • species (Fd, Cw, Hw, Ba,...) • ecosystems (mature and seral) • stand structure ...
... function across levels of ecological organization • genes (different seed sources) • species (Fd, Cw, Hw, Ba,...) • ecosystems (mature and seral) • stand structure ...
Working with Data 45.1 Habitat Fragmentation
... an entire arthropod community and to kill all species without damaging the habitat. They finally found a suitable system—scattered individual red mangrove trees (Rhizophora mangle) off the Florida coast: each tree represents an “island” for terrestrial arthropods that live on trees; the trees are sm ...
... an entire arthropod community and to kill all species without damaging the habitat. They finally found a suitable system—scattered individual red mangrove trees (Rhizophora mangle) off the Florida coast: each tree represents an “island” for terrestrial arthropods that live on trees; the trees are sm ...
Ecology Objective Sheet
... These are the learning goals for this unit. You will not turn in the answers to these, but this is your study guide for quizzes and tests. You may WANT to answer some of these on a separate piece of paper to help yourself focus and learn. 1. Define “trophic levels”. Distinguish between producers and ...
... These are the learning goals for this unit. You will not turn in the answers to these, but this is your study guide for quizzes and tests. You may WANT to answer some of these on a separate piece of paper to help yourself focus and learn. 1. Define “trophic levels”. Distinguish between producers and ...
The IUCN Red List of Threatened Species™ October 2010 update
... Following the last global assessment of cycads in 2003, it was found that 53% of this group were threatened with extinction. Now, seven years on, it is clear that the situation is quickly deteriorating, with a total of 62% of cycad species now threatened. Of particular concern is that this plant gro ...
... Following the last global assessment of cycads in 2003, it was found that 53% of this group were threatened with extinction. Now, seven years on, it is clear that the situation is quickly deteriorating, with a total of 62% of cycad species now threatened. Of particular concern is that this plant gro ...
Introducing the Planet - Geography, Biomes, and Species Interactions
... Currently Earth is about to experience its sixth mass extinction – this time because of humanity. Humans have increased the extinction rate by a factor of somewhere between 100 and 1,000! 1,100 species are known to have gone extinct in the past 400 years. The Red List, from the IUCN, lists species t ...
... Currently Earth is about to experience its sixth mass extinction – this time because of humanity. Humans have increased the extinction rate by a factor of somewhere between 100 and 1,000! 1,100 species are known to have gone extinct in the past 400 years. The Red List, from the IUCN, lists species t ...
Parasites of Amphibians and Reptiles from Michigan: Patrick M. Muzzall
... Based on discussions with parasitologists and herpetologists as well as reviewing articles on the parasites of herps, it became apparent that ...
... Based on discussions with parasitologists and herpetologists as well as reviewing articles on the parasites of herps, it became apparent that ...
Questions and terms
... abundance of seeds, more likely found in a year of rainfall, the rats leave their stored seeds in the ground. However, when the seeds are sparse, they eat all the seeds, and they don’t leave any in the ground. 7. Selective pressures can cause one species to be favored in resource partitioning. Some ...
... abundance of seeds, more likely found in a year of rainfall, the rats leave their stored seeds in the ground. However, when the seeds are sparse, they eat all the seeds, and they don’t leave any in the ground. 7. Selective pressures can cause one species to be favored in resource partitioning. Some ...
PowerPoint Presentation - #2 Speciation and Biodiversity
... species will go extinct*. How do we develop conservation strategies that are nimble enough to deal with climate change? *Halloy, S.R.P., and Mark, A.F. 2003. Arctic, Antarctic, and Alpine Research, 35, 248-254. ...
... species will go extinct*. How do we develop conservation strategies that are nimble enough to deal with climate change? *Halloy, S.R.P., and Mark, A.F. 2003. Arctic, Antarctic, and Alpine Research, 35, 248-254. ...
Metapopulation → Metacommunity Metacommunity model example
... • Species A and B are both regional, what determines occupancy locally? – Patch dynamics – colonization-competition tradeoff, one will outcompete while the other is the first colonist. A and B do not coexist. – Species Sorting – A and B differ in niche, each excludes the other in some habitats. A an ...
... • Species A and B are both regional, what determines occupancy locally? – Patch dynamics – colonization-competition tradeoff, one will outcompete while the other is the first colonist. A and B do not coexist. – Species Sorting – A and B differ in niche, each excludes the other in some habitats. A an ...
1091(Lec16Inv)
... Non-indigenous/introduced species - a spp introduced to areas beyond its native range by human activity Established - a spp with a self-sustaining population outside its native range Invasive species - a non-indigenous spp that spreads from the point of introduction and becomes abundant Non-invasive ...
... Non-indigenous/introduced species - a spp introduced to areas beyond its native range by human activity Established - a spp with a self-sustaining population outside its native range Invasive species - a non-indigenous spp that spreads from the point of introduction and becomes abundant Non-invasive ...
December 2011 - Rufford Small Grants
... (approximately £0.10) per hectare per year. This is much lower than prevailing perceptions, but may underestimate losses on game farms. Game species are often extensively managed, which makes it more difficult for land owners to count their animals and detect losses. ...
... (approximately £0.10) per hectare per year. This is much lower than prevailing perceptions, but may underestimate losses on game farms. Game species are often extensively managed, which makes it more difficult for land owners to count their animals and detect losses. ...
Biodiversity and Evolution combined
... • Species richness- # of different species • Species evenness- abundance of individuals within each of those species ...
... • Species richness- # of different species • Species evenness- abundance of individuals within each of those species ...
Human Impact Ecology
... • Arrange the cards into 2 SEPARATE flow maps, one for primary succession and one for secondary succession. • Copy the 2 flow maps into your INB on these pages. • INCLUDE the colored picture!!!!! Type of Succession with definition s 1 Stage ...
... • Arrange the cards into 2 SEPARATE flow maps, one for primary succession and one for secondary succession. • Copy the 2 flow maps into your INB on these pages. • INCLUDE the colored picture!!!!! Type of Succession with definition s 1 Stage ...
Equilibrium-based models of the maintenance of
... Each reef building episode gave predictable species composition across habitat types. Current composition is similar to pleistocene ...
... Each reef building episode gave predictable species composition across habitat types. Current composition is similar to pleistocene ...
Pisaster Disaster PSI AP Biology
... from one trophic level to another. Unfortunately, not all of the energy is transferred between trophic levels. The percentage that is successfully transferred is called the ecological efficiency. On average, ecological efficiency is 10% from one trophic level to another. Look back at the food web fo ...
... from one trophic level to another. Unfortunately, not all of the energy is transferred between trophic levels. The percentage that is successfully transferred is called the ecological efficiency. On average, ecological efficiency is 10% from one trophic level to another. Look back at the food web fo ...
Chapter 3: Species Populations, Interactions and Communities
... organisms occupy a site and gradually change environmental conditions by creating soil, shelter, shade, or increasing humidity • Primary succession - occurs when a community begins to develop on a site previously unoccupied by living organisms • Secondary succession - occurs when an existing communi ...
... organisms occupy a site and gradually change environmental conditions by creating soil, shelter, shade, or increasing humidity • Primary succession - occurs when a community begins to develop on a site previously unoccupied by living organisms • Secondary succession - occurs when an existing communi ...
Over 40% of all mammal species in the next 2 labs
... •Worldwide distribution, wide range of habitats and ecologies ...
... •Worldwide distribution, wide range of habitats and ecologies ...
Southern Africa Freshwater Factsheet
... (Lepomis macrochirus) and Rainbow Trout (Oncorhynchus mykiss). Tilapia sparrmanii has also been introduced and is reported to compete with native species for food. In another case, Sandelia capensis, a species widespread throughout the Western Cape, was introduced to the Olifants River System, wher ...
... (Lepomis macrochirus) and Rainbow Trout (Oncorhynchus mykiss). Tilapia sparrmanii has also been introduced and is reported to compete with native species for food. In another case, Sandelia capensis, a species widespread throughout the Western Cape, was introduced to the Olifants River System, wher ...
December 2015 - Rufford Small Grants
... very colourful shells are affected for the indiscriminate collections that have increased in the last days. The intense deforestation of our territory to condition agriculture lands (cane, fruit plantations), the extraction of wood from the forests and materials of construction in the quarries and t ...
... very colourful shells are affected for the indiscriminate collections that have increased in the last days. The intense deforestation of our territory to condition agriculture lands (cane, fruit plantations), the extraction of wood from the forests and materials of construction in the quarries and t ...
Fauna of Africa
Fauna of Africa, in its broader sense, is all the animals living in Africa and its surrounding seas and islands. The more characteristic African fauna is found in the Afrotropical ecoregion. Lying almost entirely within the tropics, and equally to north and south of the equator creates favourable conditions for rich wildlife.