Evolution Scenarios
... Adaptation – the alteration of a body structure, behavior or function that makes an organism more successful in surviving to reproduce Biodiversity – the variety and number of species in a biological co ...
... Adaptation – the alteration of a body structure, behavior or function that makes an organism more successful in surviving to reproduce Biodiversity – the variety and number of species in a biological co ...
GIANT DESERT or GIANT RED-HEADED CENTIPEDE Class Order
... Special Adaptations: The Giant Desert Centipede can give a very painful bite. It is aposematically colored, to warn off potential predators, and a number of color variants are known in the species. They are aggressive, active, swift runners and their flexible bodies allow them to get into small, tig ...
... Special Adaptations: The Giant Desert Centipede can give a very painful bite. It is aposematically colored, to warn off potential predators, and a number of color variants are known in the species. They are aggressive, active, swift runners and their flexible bodies allow them to get into small, tig ...
Lecture 37 NEKTONIC ORGANISMS General characteristics
... Other mammals Reptiles Migration during life cycle -- some examples GENERAL CHARACTERISTICS Nektonic organisms are swimmers Mode of nutrition: Both.... Herbivores Carnivores (predators, scavengers) Vertebrates dominate the nekton INVERTEBRATE NEKTON -- relatively few representatives Different evolut ...
... Other mammals Reptiles Migration during life cycle -- some examples GENERAL CHARACTERISTICS Nektonic organisms are swimmers Mode of nutrition: Both.... Herbivores Carnivores (predators, scavengers) Vertebrates dominate the nekton INVERTEBRATE NEKTON -- relatively few representatives Different evolut ...
Simple rules yield complex food webs
... uniformly from the interval [0,1] and each species has probability P = 2CS/(S - 1) of consuming only species with values less than its own. Good explanation for trophic levels underestimates interspecific trophic similarity overestimates food-chain length and number in larger webs ...
... uniformly from the interval [0,1] and each species has probability P = 2CS/(S - 1) of consuming only species with values less than its own. Good explanation for trophic levels underestimates interspecific trophic similarity overestimates food-chain length and number in larger webs ...
Mutualism and Commensalism
... Warning coloration associated with toxicity or other chemical defenses ...
... Warning coloration associated with toxicity or other chemical defenses ...
Animal Behavior 09
... Often, there is a division-oflabor setup & most, if not all, of the organisms are related to one another. Therefore, by sticking together, it increases the chances that those genes of the individual (which are also in the collective group) go on to future generations. ...
... Often, there is a division-oflabor setup & most, if not all, of the organisms are related to one another. Therefore, by sticking together, it increases the chances that those genes of the individual (which are also in the collective group) go on to future generations. ...
adaptation - Cloudfront.net
... High altitudes-more red blood cells for oxygen Deep water-flexible rib cages ...
... High altitudes-more red blood cells for oxygen Deep water-flexible rib cages ...
File - Mr. Shanks` Class
... - (e.g., Darwin’s finches – small beaked ate small seeds and big beaked ate large seed; yet, medium beaked could not eat or compete for either seed size (unfavourable)) 4) Sexual Selection - Favouring of any trait that specifically ___________ the mating success of an individuals - Often leads males ...
... - (e.g., Darwin’s finches – small beaked ate small seeds and big beaked ate large seed; yet, medium beaked could not eat or compete for either seed size (unfavourable)) 4) Sexual Selection - Favouring of any trait that specifically ___________ the mating success of an individuals - Often leads males ...
- University of Lincoln
... battlefield wins: regardless of the combat skills of an elite warrior, he or she can still be overwhelmed by a mob of less-able opponents. Thus, the competitive abilities of these bacteria are highly dependent upon their frequencies. ...
... battlefield wins: regardless of the combat skills of an elite warrior, he or she can still be overwhelmed by a mob of less-able opponents. Thus, the competitive abilities of these bacteria are highly dependent upon their frequencies. ...
The ecology of fuel reduction burning
... The fire starts off the process of regrowth and renewal, with some species taking advantage of the space and lack of competition. New food resources (green pick, seeds) support the recovery of the animal populations. Many animal species, and especially many birds, will use the burned areas for forag ...
... The fire starts off the process of regrowth and renewal, with some species taking advantage of the space and lack of competition. New food resources (green pick, seeds) support the recovery of the animal populations. Many animal species, and especially many birds, will use the burned areas for forag ...
LECTURE 8: Cenozoic Era 65 mya - Present
... While the predator on the left is a North American carnivoran, the predator on the right is a South American marsupial—a completely different mammal group. Yet both of these predators have saber teeth, terrific for piercing thick hides of large prey ...
... While the predator on the left is a North American carnivoran, the predator on the right is a South American marsupial—a completely different mammal group. Yet both of these predators have saber teeth, terrific for piercing thick hides of large prey ...
Causes of Evolution
... between the extremes. Stabilizing selection occurs when under certain environmental conditions, the extreme phenotypes are not favorable and therefore those individuals in the extreme region will die and their genes do not continue in the population. Directional selection involves removal of the gen ...
... between the extremes. Stabilizing selection occurs when under certain environmental conditions, the extreme phenotypes are not favorable and therefore those individuals in the extreme region will die and their genes do not continue in the population. Directional selection involves removal of the gen ...
Causes of Evolution
... between the extremes. Stabilizing selection occurs when under certain environmental conditions, the extreme phenotypes are not favorable and therefore those individuals in the extreme region will die and their genes do not continue in the population. Directional selection involves removal of the gen ...
... between the extremes. Stabilizing selection occurs when under certain environmental conditions, the extreme phenotypes are not favorable and therefore those individuals in the extreme region will die and their genes do not continue in the population. Directional selection involves removal of the gen ...
www.saczoo.com
... rapid decline in rhino iguana numbers. Illegal hunting and exportation for the pet trade have decreased in the past years with increased education efforts and stiff penalties for offenders. Behavior These terrestrial lizards spend their days foraging for food, but travel only short distances within ...
... rapid decline in rhino iguana numbers. Illegal hunting and exportation for the pet trade have decreased in the past years with increased education efforts and stiff penalties for offenders. Behavior These terrestrial lizards spend their days foraging for food, but travel only short distances within ...
Patterns of Evolution
... The kit fox lives on the plains and in the deserts, where its sandy color helps conceal it from prey and predators. The ears of the kit fox are larger than those of the red fox. The kit fox's large ears are an adaptation to its desert environment. The enlarged surface area of its ears helps the fox ...
... The kit fox lives on the plains and in the deserts, where its sandy color helps conceal it from prey and predators. The ears of the kit fox are larger than those of the red fox. The kit fox's large ears are an adaptation to its desert environment. The enlarged surface area of its ears helps the fox ...
adaptive coloration
... BUT - Some monarchs are non-noxious, yet benefit from looking like the noxious members of their own species – this is called Automimicry. ALSO – Viceroys are sometimes noxious themselves and benefit by sharing aposematic coloration with monarchs. This is called Mullerian Mimicry. ...
... BUT - Some monarchs are non-noxious, yet benefit from looking like the noxious members of their own species – this is called Automimicry. ALSO – Viceroys are sometimes noxious themselves and benefit by sharing aposematic coloration with monarchs. This is called Mullerian Mimicry. ...
LIST OF BALLARAT REGION THREATENED AMPHIBIAN SPECIES
... BROWN TOADLET, Pseudophryne bibronii The Brown Toadlet, also known as Bibron’s Toadlet, is an endangered species of Toadlet endemic to south eastern Australia. While its habitat must be damp and wet, its habitats are not necessarily associated with permanent water. They shelter in damp leaf litter, ...
... BROWN TOADLET, Pseudophryne bibronii The Brown Toadlet, also known as Bibron’s Toadlet, is an endangered species of Toadlet endemic to south eastern Australia. While its habitat must be damp and wet, its habitats are not necessarily associated with permanent water. They shelter in damp leaf litter, ...
species fact sheet
... referred to as the stinker of the forest because they can spray like a skunk. In the stomach of one they found more then a pound of ants. They can smell the difference between stinging and non stinging ants. At 91 degrees F they have one of the lowest body temperatures of any mammal. ...
... referred to as the stinker of the forest because they can spray like a skunk. In the stomach of one they found more then a pound of ants. They can smell the difference between stinging and non stinging ants. At 91 degrees F they have one of the lowest body temperatures of any mammal. ...
Jenna, Mick, Andrew, Lindsey
... a. Clumped: Bezoar Goats- the females and babies will live together in packs of 50 to spread the work of protecting and caring for young or more and the males will live in all male packs to help exclude other individuals other individuals from their territory. Other carnivorous animals that live in ...
... a. Clumped: Bezoar Goats- the females and babies will live together in packs of 50 to spread the work of protecting and caring for young or more and the males will live in all male packs to help exclude other individuals other individuals from their territory. Other carnivorous animals that live in ...
Relationships in the Ecosystem
... Competition …when 2 organisms or species have the same niche they will compete for resources. The “loser” will either have to leave, get another niche or die. ...
... Competition …when 2 organisms or species have the same niche they will compete for resources. The “loser” will either have to leave, get another niche or die. ...
Species Interact Jennifer and Gabe
... 1.Ate all of the grass 2.Since they have no natural predator there, they are becoming over populated 3.This also shows interspecific competition http://en.wikipedia.org/wiki/Rabbits_in_Australia ...
... 1.Ate all of the grass 2.Since they have no natural predator there, they are becoming over populated 3.This also shows interspecific competition http://en.wikipedia.org/wiki/Rabbits_in_Australia ...
100
... Islands on the HMS Beagle and observed similar species suited to their particular environment. ...
... Islands on the HMS Beagle and observed similar species suited to their particular environment. ...
Aposematism
Aposematism (from Greek ἀπό apo away, σ̑ημα sema sign, coined by Edward Bagnall Poulton), perhaps most commonly known in the context of warning coloration, describes a family of antipredator adaptations where a warning signal is associated with the unprofitability of a prey item to potential predators. Aposematism is one form of an ""advertising"" signal (with many others existing, such as the bright colours of flowers which lure pollinators). The warning signal may take the form of conspicuous colours, sounds, odours or other perceivable characteristics. Aposematic signals are beneficial for both the predator and prey, both of which avoid potential harm.Aposematism is exploited in Müllerian mimicry, where species with strong defences evolve to resemble one another. By mimicking similarly coloured species, the warning signal to predators is shared, causing them to learn more quickly at less of a cost to each of the species.Warning signals do not necessarily require that a species actually possesses chemical or physical defences to deter predators. Mimics such as the nonvenomous California mountain kingsnake (Lampropeltis zonata), which has yellow, red, and black bands similar to those of the highly venomous Eastern Coral Snake (Micrurus fulvius), have essentially piggybacked on the successful aposematism of the model. The evolution of a warning signal by a mimicking species that resembles a species that possesses strong defences is known as Batesian mimicry.