Comparing Eco Footprints WWf (2)
... LEDC’s and MEDC’s (Section 3.8.3) 1. What do you predict the relationship to be between the wealth (GDP, PPP) and the Ecological footprint of a country? 2. Suggest some reasons for the relationship you have stated above. 3. Look at the bar graph on page 8 of the WWF Living Planet report and select a ...
... LEDC’s and MEDC’s (Section 3.8.3) 1. What do you predict the relationship to be between the wealth (GDP, PPP) and the Ecological footprint of a country? 2. Suggest some reasons for the relationship you have stated above. 3. Look at the bar graph on page 8 of the WWF Living Planet report and select a ...
Zoology Study Guide CH 33 Comparing Chordates
... The resemblance of the flying squirrel of North America-a placental mammal…to the sugar glider of Australia- a marsupial…(both animals are nocturnal, live in trees, and can glide through the air using a flap of skin that stretches between the legs on each side of the body)…is an example of _________ ...
... The resemblance of the flying squirrel of North America-a placental mammal…to the sugar glider of Australia- a marsupial…(both animals are nocturnal, live in trees, and can glide through the air using a flap of skin that stretches between the legs on each side of the body)…is an example of _________ ...
Science Study Guide: Ecosystems and Adaptations
... During a drought, the available resources of a habitat will decrease. In a food chain there are both producers and consumers. If the number of consumers increases, the number of producers will decrease. An example would be if the rabbits in a community increased, the number of plants and grasses ...
... During a drought, the available resources of a habitat will decrease. In a food chain there are both producers and consumers. If the number of consumers increases, the number of producers will decrease. An example would be if the rabbits in a community increased, the number of plants and grasses ...
On Being the Right Size
... When a limit is reached to their absorptive powers their surface has to be increased by some special device. For example, a part of the skin may be drawn out into tufts to make gills or pushed in to make lungs, thus increasing the oxygen-absorbing surface in proportion to the animal’s bulk. A man, f ...
... When a limit is reached to their absorptive powers their surface has to be increased by some special device. For example, a part of the skin may be drawn out into tufts to make gills or pushed in to make lungs, thus increasing the oxygen-absorbing surface in proportion to the animal’s bulk. A man, f ...
Linking body-size distributions and food-web structure (PDF
... low trophic levels and larger species are only abundant when they feed at higher trophic levels.Thus the passage of energy through the food web is strongly constrained by body size 10. ...
... low trophic levels and larger species are only abundant when they feed at higher trophic levels.Thus the passage of energy through the food web is strongly constrained by body size 10. ...
4.1.1-4.2.4 Biodiversity
... extinction without human intervention. Because of human intervention the Earth's species are dying out at an alarming rate, up to 1,000 times faster than their natural rate of extinction. ...
... extinction without human intervention. Because of human intervention the Earth's species are dying out at an alarming rate, up to 1,000 times faster than their natural rate of extinction. ...
Population
... Ex: several thousand salmon eggs, not all hatch, a few hundred survive disease or predation, several dozen reach adulthood, and few will successfully reproduce ...
... Ex: several thousand salmon eggs, not all hatch, a few hundred survive disease or predation, several dozen reach adulthood, and few will successfully reproduce ...
Lecture 17: Biogeography
... • Lack of congruence suggests that dispersal & local extinctions important ...
... • Lack of congruence suggests that dispersal & local extinctions important ...
Examining the Extinction of the Pleistocene Megafauna
... and springs to dry up or significantly reduce discharge (Haynes 1984). As a result of this climatic shift, several changes occurred. Some primary habitats were eliminated, while others that may have been only marginal during ...
... and springs to dry up or significantly reduce discharge (Haynes 1984). As a result of this climatic shift, several changes occurred. Some primary habitats were eliminated, while others that may have been only marginal during ...
Zoology Study Guide Chapter 33 Comparing Chordates
... glider of Australia – a marsupial… (both animals are nocturnal, live in trees, and can glide through the air using a flap of skin that stretches between the legs of each side of the body)… is an example of ________________________________. 7. ________________ - Rapid growth in the DIVERSITY of a gro ...
... glider of Australia – a marsupial… (both animals are nocturnal, live in trees, and can glide through the air using a flap of skin that stretches between the legs of each side of the body)… is an example of ________________________________. 7. ________________ - Rapid growth in the DIVERSITY of a gro ...
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. ...
General Ecology: Lecture 4
... Be familiar with the specific examples given in class for oscillations due to environmental conditions and oscillations due to parasites. ...
... Be familiar with the specific examples given in class for oscillations due to environmental conditions and oscillations due to parasites. ...
File - Oxford Megafauna conference
... dating methods, advances in recovering ancient DNA (aDNA), and increased spatiotemporal resolution of palaeoclimate data, combined with sophisticated ecological and coalescence models, have improved our understanding of how single species and populations responded to past climate change. However, a ...
... dating methods, advances in recovering ancient DNA (aDNA), and increased spatiotemporal resolution of palaeoclimate data, combined with sophisticated ecological and coalescence models, have improved our understanding of how single species and populations responded to past climate change. However, a ...
APES review #2
... different species & evenness – relative # of individuals in each species • Generalist – broad niche, many diet options • Specialist – very specific niche, narrow range of conditions for survival • Invasive species – introduced to an area they don’t belong and outcompetes / over grows others • Keysto ...
... different species & evenness – relative # of individuals in each species • Generalist – broad niche, many diet options • Specialist – very specific niche, narrow range of conditions for survival • Invasive species – introduced to an area they don’t belong and outcompetes / over grows others • Keysto ...
Biological Diversity
... •Mainly effected animals rather than plants Possible causes: •Climate change •Flood basalt eruptions •Impact event ...
... •Mainly effected animals rather than plants Possible causes: •Climate change •Flood basalt eruptions •Impact event ...
Evolution (Speciation)
... 2. Two populations of a particular bat species exist in separate caves on an island. Over many generations, these populations diverge into two distinct species. Which of the following best explains how this speciation event 8.d could have happened? A The populations became isolated after the main en ...
... 2. Two populations of a particular bat species exist in separate caves on an island. Over many generations, these populations diverge into two distinct species. Which of the following best explains how this speciation event 8.d could have happened? A The populations became isolated after the main en ...
Read the full article
... flying dragons but is hardly their scale. The historic dragon, whose wingspans were said to have been as wide as 25 feet, are well represented by skeletal remains of an extinct sea bird, Pelagornithid, found in 1983, when Charleston International Airport was undergoing expansion. The skeletal remain ...
... flying dragons but is hardly their scale. The historic dragon, whose wingspans were said to have been as wide as 25 feet, are well represented by skeletal remains of an extinct sea bird, Pelagornithid, found in 1983, when Charleston International Airport was undergoing expansion. The skeletal remain ...
No Slide Title
... • Salamanders in NE had densities of 7-10/sq m; 2X biomass of breeding birds, same as small mammals • In Michigan marsh, amphibians most important 2nd and 3rd level consumers in food chain • In Texas, standing crop of Lesser Siren greater than that of total of 7 species of fish in same habitat ...
... • Salamanders in NE had densities of 7-10/sq m; 2X biomass of breeding birds, same as small mammals • In Michigan marsh, amphibians most important 2nd and 3rd level consumers in food chain • In Texas, standing crop of Lesser Siren greater than that of total of 7 species of fish in same habitat ...
ecosystem collapse in pleistocene australia
... etween 45,000 and 50,000 years ago, in the Late Quaternary, Australia suffered a major loss of its megafauna. Sixty taxa of mammals, predominantly large leaf- and twig-eating animals called browsers, went extinct, including all 19 species exceeding 100 kilograms, like the halfton Palorchestes azael, ...
... etween 45,000 and 50,000 years ago, in the Late Quaternary, Australia suffered a major loss of its megafauna. Sixty taxa of mammals, predominantly large leaf- and twig-eating animals called browsers, went extinct, including all 19 species exceeding 100 kilograms, like the halfton Palorchestes azael, ...
Lecture 08 - Extinction
... o –species have broad geographic ranges - those with small geographic ranges may be eliminated earlier, and o –suitable habitat will remain within the ranges of most species Background or normal extinction rate is assumed to be about 1 to 10 species per year Estimated extinction rate in this exa ...
... o –species have broad geographic ranges - those with small geographic ranges may be eliminated earlier, and o –suitable habitat will remain within the ranges of most species Background or normal extinction rate is assumed to be about 1 to 10 species per year Estimated extinction rate in this exa ...
DE Science Elementary “5
... • Individuals can adapt to a changing environment. These adaptations are heritable. – Reality: Inherited traits are passed from parents to offspring in a species. A mutation is a change in traits that are adapted over time and through generations of a species. These changes allow species to survive ...
... • Individuals can adapt to a changing environment. These adaptations are heritable. – Reality: Inherited traits are passed from parents to offspring in a species. A mutation is a change in traits that are adapted over time and through generations of a species. These changes allow species to survive ...
File - Covenant Science Stuff
... d. a buoyant swim bladder (derived from an ancestral lung). 7. With more than 27,000 species, ray-finned fishes are the most diverse group of vertebrates. 8. Lobe-fins have muscular pelvic and pectoral fins that are supported by rod-shaped bones. 9. Today, three lineages of lobe-fins survive: a. coe ...
... d. a buoyant swim bladder (derived from an ancestral lung). 7. With more than 27,000 species, ray-finned fishes are the most diverse group of vertebrates. 8. Lobe-fins have muscular pelvic and pectoral fins that are supported by rod-shaped bones. 9. Today, three lineages of lobe-fins survive: a. coe ...
(2003) - Ch 2 - Neglect and Exploitation
... by 1963, they expanded to 6000 animals and overgrazed the lichens; most died due to starvation the following winter - mule deer of the Kaibab Plateau of Arizona - often cited study; population supposedly grew greatly when predators in the area were eliminated and hunting was stopped; then deer popul ...
... by 1963, they expanded to 6000 animals and overgrazed the lichens; most died due to starvation the following winter - mule deer of the Kaibab Plateau of Arizona - often cited study; population supposedly grew greatly when predators in the area were eliminated and hunting was stopped; then deer popul ...
Megafauna
In terrestrial zoology, megafauna (Ancient Greek megas ""large"" + New Latin fauna ""animal"") are large or giant animals. The most common thresholds used are 45 kilograms (100 lb) or 100 kilograms (220 lb). This thus includes many species not popularly thought of as overly large, such as white-tailed deer, red kangaroo, and humans.In practice, the most common usage encountered in academic and popular writing describes land animals roughly larger than a human that are not (solely) domesticated. The term is especially associated with the Pleistocene megafauna – the land animals often larger than modern counterparts considered archetypical of the last ice age, such as mammoths, the majority of which in northern Eurasia, the Americas and Australia became extinct as recently as 10,000–40,000 years ago. It is also commonly used for the largest extant wild land animals, especially elephants, giraffes, hippopotamuses, rhinoceroses, and large bovines. Megafauna may be subcategorized by their trophic position into megaherbivores (e.g., elk), megacarnivores (e.g., lions), and, more rarely, megaomnivores (e.g., bears).Other common uses are for giant aquatic species, especially whales, any larger wild or domesticated land animals such as larger antelope and cattle, as well as numerous dinosaurs and other extinct giant reptilians.The term is also sometimes applied to animals (usually extinct) of great size relative to a more common or surviving type of the animal, for example the 1 m (3 ft) dragonflies of the Carboniferous period.