Chapter 7 Mammalian/Primate Evolutionary History
... A genus is a group of species composed of members more closely related to each other than to species from any other genus. Species that are members of the same genus share the same broad adaptive zone. Members of the same genus should all share derived characters not seen in members of other genera. ...
... A genus is a group of species composed of members more closely related to each other than to species from any other genus. Species that are members of the same genus share the same broad adaptive zone. Members of the same genus should all share derived characters not seen in members of other genera. ...
Natural Causes of Extinction
... Extinctions caused by humans are generally considered to be a recent phenomena. HOWEVER: ...
... Extinctions caused by humans are generally considered to be a recent phenomena. HOWEVER: ...
does metabolic theory apply to community ecology? it`s a matter of
... of the complexity of nature. We had considerable debate, though, about the breadth of applicability of metabolic scaling theory. It is clear that scaling relationships hold best when examining patterns across a wide spectrum of body sizes (such as from microbes to megafauna) within an ecosystem, con ...
... of the complexity of nature. We had considerable debate, though, about the breadth of applicability of metabolic scaling theory. It is clear that scaling relationships hold best when examining patterns across a wide spectrum of body sizes (such as from microbes to megafauna) within an ecosystem, con ...
Lecture - Mammals
... 2) Retain reptile-like gait (legs on side rather than underneath) 3) Reduced operational body temperature (Mean body temp ~ 32 ºC (~ 89.5 ºF)) • Endothermic (homeotherms) • May enter periods of hibernation (cool weather) • Testes located abdominally (unusual for mammals) Mammalian Features: 1) Femal ...
... 2) Retain reptile-like gait (legs on side rather than underneath) 3) Reduced operational body temperature (Mean body temp ~ 32 ºC (~ 89.5 ºF)) • Endothermic (homeotherms) • May enter periods of hibernation (cool weather) • Testes located abdominally (unusual for mammals) Mammalian Features: 1) Femal ...
Island Biogeography: Patterns in Species Richness Island Patterns
... Eugene G. Munroe (1948) -- developed the equilibrium theory before MacArthur and Wilson, but ideas buried in doctoral thesis about Caribbean butterflies and never published Frank Preston (1962) -- One of his contributions was the idea that in any region, only a few species are extremely common, and ...
... Eugene G. Munroe (1948) -- developed the equilibrium theory before MacArthur and Wilson, but ideas buried in doctoral thesis about Caribbean butterflies and never published Frank Preston (1962) -- One of his contributions was the idea that in any region, only a few species are extremely common, and ...
Global change and evolution.ppt [Read
... Changes climate/atmosphere and influences extinction /speciation eg. Volcanic activity (extinctions; Permian) and Vicariance (speciation) ...
... Changes climate/atmosphere and influences extinction /speciation eg. Volcanic activity (extinctions; Permian) and Vicariance (speciation) ...
Pleistocene fauna (Zoogeography and Plaeontology).
... • Endemic to Central America and South America that lived from the Pliocene through Pleistocene existing approximately 5.289 million years. • They inhabited woodlands and grasslands. • Promegatherium is suggested to be the ancestor of ...
... • Endemic to Central America and South America that lived from the Pliocene through Pleistocene existing approximately 5.289 million years. • They inhabited woodlands and grasslands. • Promegatherium is suggested to be the ancestor of ...
File
... Early four-legged vertebrates evolved into amphibians. Amphibians live part of their life on land and part of its life in ...
... Early four-legged vertebrates evolved into amphibians. Amphibians live part of their life on land and part of its life in ...
Natural Selection Review Sheet
... interfered with the extinction process. Instead of killing off 1 per hundred years, we are killing off many per hundred years. We are killing off a lot of animals. The latest biggie kill was the Dusky Seaside Sparrow that lived in Cape Canaveral. Because the mosquitoes were so numerous in this salt ...
... interfered with the extinction process. Instead of killing off 1 per hundred years, we are killing off many per hundred years. We are killing off a lot of animals. The latest biggie kill was the Dusky Seaside Sparrow that lived in Cape Canaveral. Because the mosquitoes were so numerous in this salt ...
Presentation - Organization of American States
... Convention on the Conservation of Migratory Species of Wild Animals -Bonn Convention(Bonn, 1979) ...
... Convention on the Conservation of Migratory Species of Wild Animals -Bonn Convention(Bonn, 1979) ...
Lecture Outlines Natural Disasters, 5th edition
... • Large animals fared best in Africa where humans evolved – co-existed for thousands of generations • Wherever humans went, extinctions followed ...
... • Large animals fared best in Africa where humans evolved – co-existed for thousands of generations • Wherever humans went, extinctions followed ...
Climate Change and Whales: To IWC
... • Species are dependent on one or more of above • Species can move rapidly if habitat and paths exist • Fish are cold-blooded. Life processes, like growth, are faster when warmer (within limits) • Many species have narrow ecological niches, but there are many species to fill niches • Small changes c ...
... • Species are dependent on one or more of above • Species can move rapidly if habitat and paths exist • Fish are cold-blooded. Life processes, like growth, are faster when warmer (within limits) • Many species have narrow ecological niches, but there are many species to fill niches • Small changes c ...
Tilburg University A paleoeconomic theory of co
... responses to economic stimuli. These models have largely focused on biological explanations (e.g., in the case of the Neanderthal extinction; see Flores 1998), or on results from mechanistic models of human-environment interactions that lack fundamental behavioral components (e.g., in the case of me ...
... responses to economic stimuli. These models have largely focused on biological explanations (e.g., in the case of the Neanderthal extinction; see Flores 1998), or on results from mechanistic models of human-environment interactions that lack fundamental behavioral components (e.g., in the case of me ...
Extinction & the Biodiversity Crisis
... in past 50 yrs than at any time in human history • Over last 100 yrs, human-caused species extinctions have ...
... in past 50 yrs than at any time in human history • Over last 100 yrs, human-caused species extinctions have ...
factors influencing the size of some internal organs in raptors
... dition for sparrowhawks,male peregrines, and endogenousreservesof fat and protein to mainmale common buzzards.Heart weight was highly tain their metabolic requirements. The extent to correlated with condition in every speciesexcept which tissuefrom the alimentary tract is depleted, the tawny owl. ho ...
... dition for sparrowhawks,male peregrines, and endogenousreservesof fat and protein to mainmale common buzzards.Heart weight was highly tain their metabolic requirements. The extent to correlated with condition in every speciesexcept which tissuefrom the alimentary tract is depleted, the tawny owl. ho ...
A Multispecies Overkill Simulation of the End-Pleistocene
... to this parameter. Higher values may be more realistic, because large-sized terrestrial herbivores are known to compete for food resources even with rodents (30). Therefore, the other simulations assume full competition. Geographic dispersal of prey species is not a key factor with respect to any of ...
... to this parameter. Higher values may be more realistic, because large-sized terrestrial herbivores are known to compete for food resources even with rodents (30). Therefore, the other simulations assume full competition. Geographic dispersal of prey species is not a key factor with respect to any of ...
Lecture 14 – Ecosystems
... their most insoluble problems. They believe that somehow a whale must have evolved from an ordinary landdwelling animal, which took to the sea and lost its legs. … A land mammal that was in the process of becoming a whale would fall between two stools – it would not be fitted for life on land or sea ...
... their most insoluble problems. They believe that somehow a whale must have evolved from an ordinary landdwelling animal, which took to the sea and lost its legs. … A land mammal that was in the process of becoming a whale would fall between two stools – it would not be fitted for life on land or sea ...
Stories from the Fossil Record Evidence Chart Key
... The leaf edges tell us if the climate where the plant grew was generally cool or warm. ...
... The leaf edges tell us if the climate where the plant grew was generally cool or warm. ...
IV. Limiting Factors - Crestwood Local Schools
... 4. Density dependent limiting factorsdepend on the population size 5. Density independent limiting factorsaffects same percentage regardless of population size 6. Density dependent show an S shaped ...
... 4. Density dependent limiting factorsdepend on the population size 5. Density independent limiting factorsaffects same percentage regardless of population size 6. Density dependent show an S shaped ...
Population
... – # of deaths (death rate) – # entering and # leaving • Immigration: movement of individuals into an area (growth) • Emigration: movement of individuals out of an area (decrease) ...
... – # of deaths (death rate) – # entering and # leaving • Immigration: movement of individuals into an area (growth) • Emigration: movement of individuals out of an area (decrease) ...
Animal Extinction - the greatest threat to mankind
... Nowhere is this better proven than in a 12-year study conducted in the Chihuahuan desert by James H Brown and Edward Heske of the University of New Mexico. When a kangaroo-rat guild composed of three closely related species was removed, shrublands quickly converted to grasslands, which supported few ...
... Nowhere is this better proven than in a 12-year study conducted in the Chihuahuan desert by James H Brown and Edward Heske of the University of New Mexico. When a kangaroo-rat guild composed of three closely related species was removed, shrublands quickly converted to grasslands, which supported few ...
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.