Arboreal and Terrestrial Foraging Preferences in New World and
... reasonably small-bodied. We considered that the New World monkeys would be less likely to descend to the ground because of their potential increased vulnerability to predators. Largebodied cats can climb trees but are too heavy to reach outermost branches and will in general have restricted mobility ...
... reasonably small-bodied. We considered that the New World monkeys would be less likely to descend to the ground because of their potential increased vulnerability to predators. Largebodied cats can climb trees but are too heavy to reach outermost branches and will in general have restricted mobility ...
The Virginia Opossum: Our Only Native Marsupial
... America. Native to Central America and the southern United States, opossums have expanded their range northward over the past 100 years. Now, their range extends as far north as Ontario, Canada. They occur east to the Atlantic coast and west into the Great Plains, mainly where trees and water occur ...
... America. Native to Central America and the southern United States, opossums have expanded their range northward over the past 100 years. Now, their range extends as far north as Ontario, Canada. They occur east to the Atlantic coast and west into the Great Plains, mainly where trees and water occur ...
The Virginia Opossum: Our Only Native Marsupial
... America. Native to Central America and the southern United States, opossums have expanded their range northward over the past 100 years. Now, their range extends as far north as Ontario, Canada. They occur east to the Atlantic coast and west into the Great Plains, mainly where trees and water occur ...
... America. Native to Central America and the southern United States, opossums have expanded their range northward over the past 100 years. Now, their range extends as far north as Ontario, Canada. They occur east to the Atlantic coast and west into the Great Plains, mainly where trees and water occur ...
The Zoogeography of Mammalian Basal Metabolic Rate
... Brown et al. (1993) predict that a single, optimal taxonspecific body mass can be determined by the rate of resource acquisition from the environment and, hence, the amount and rate of energy that can be partitioned to reproduction. The model assumes that allometric exponents remain constant among d ...
... Brown et al. (1993) predict that a single, optimal taxonspecific body mass can be determined by the rate of resource acquisition from the environment and, hence, the amount and rate of energy that can be partitioned to reproduction. The model assumes that allometric exponents remain constant among d ...
When Bats Become a Nuisance
... (Lasionycteris noctivagans), the red bat (Lasiurus borealis), and the hoary bat (Lasiurus cinereus). The most common species is the little brown bat. It weights about 8 g., is approximately 10 cm long, and has a 25 cm wingspan. The little brown bat may live up to 12 years. Capable of getting into sm ...
... (Lasionycteris noctivagans), the red bat (Lasiurus borealis), and the hoary bat (Lasiurus cinereus). The most common species is the little brown bat. It weights about 8 g., is approximately 10 cm long, and has a 25 cm wingspan. The little brown bat may live up to 12 years. Capable of getting into sm ...
Gopher Tortoise Facts
... 2. Gopher tortoises are a protected species throughout their range. They are federally protected west of the Mobile River. Their biggest threat is habitat loss. 3. Threats to gopher tortoises include loss of habitat, gassing burrows for rattlesnakes and human interference (pet trade and roadway stri ...
... 2. Gopher tortoises are a protected species throughout their range. They are federally protected west of the Mobile River. Their biggest threat is habitat loss. 3. Threats to gopher tortoises include loss of habitat, gassing burrows for rattlesnakes and human interference (pet trade and roadway stri ...
Chapter 30 Study Guide
... body heat is internal–the result of heat produced by a high metabolic rate. Body temperature is regulated by internal feedback mechanisms that send signals between the brain and sensors throughout the body. For example, when some mammals become warm as a result of exertion or because the air is warm ...
... body heat is internal–the result of heat produced by a high metabolic rate. Body temperature is regulated by internal feedback mechanisms that send signals between the brain and sensors throughout the body. For example, when some mammals become warm as a result of exertion or because the air is warm ...
BATS - Essential Members of the Southern Nevada Community
... Bats are not related to birds, nor are they mice. They are a unique group, and among all mammals, only bats can truly fly. Their group (order) name, Chiroptera, literally means "hand wing". Animals such as flying squirrels do not fly, but only glide from place to place. Fossil records indicate that ...
... Bats are not related to birds, nor are they mice. They are a unique group, and among all mammals, only bats can truly fly. Their group (order) name, Chiroptera, literally means "hand wing". Animals such as flying squirrels do not fly, but only glide from place to place. Fossil records indicate that ...
GIANT TORTOISE - Galapagos Conservancy
... the ecology of the giant tortoises of Santa Cruz and Pinzón once posed serious threats to tortoises makes this long-term Islands, Linda supervised the tortoise breeding and rearing tortoise restoration project both timely and feasible. center (including the care of Lonesome George) and much of the t ...
... the ecology of the giant tortoises of Santa Cruz and Pinzón once posed serious threats to tortoises makes this long-term Islands, Linda supervised the tortoise breeding and rearing tortoise restoration project both timely and feasible. center (including the care of Lonesome George) and much of the t ...
A syndrome of mutualism reinforces the lifestyle of a sloth
... also been ascribed to sloths and pyralid moths (Cryptoses spp.) [16], in which moths require the association (þ), but because they do not feed on sloths, impose no consequence (0) on their host [17]. When a sloth descends a tree and defecates, gravid female moths leave the sloth and oviposit in the ...
... also been ascribed to sloths and pyralid moths (Cryptoses spp.) [16], in which moths require the association (þ), but because they do not feed on sloths, impose no consequence (0) on their host [17]. When a sloth descends a tree and defecates, gravid female moths leave the sloth and oviposit in the ...
A syndrome of mutualism reinforces the lifestyle of a sloth
... also been ascribed to sloths and pyralid moths (Cryptoses spp.) [16], in which moths require the association (þ), but because they do not feed on sloths, impose no consequence (0) on their host [17]. When a sloth descends a tree and defecates, gravid female moths leave the sloth and oviposit in the ...
... also been ascribed to sloths and pyralid moths (Cryptoses spp.) [16], in which moths require the association (þ), but because they do not feed on sloths, impose no consequence (0) on their host [17]. When a sloth descends a tree and defecates, gravid female moths leave the sloth and oviposit in the ...
The distribution of deer biomass in North America supports the
... that observed in the moose range (62 kg km72), because there are many deer species in this part of the continent, and equilibrium density appears higher in multispecies assemblages than when wolves prey on only one deer species (CreÃte & Manseau 1996). The increased monopolization of ecosystem energ ...
... that observed in the moose range (62 kg km72), because there are many deer species in this part of the continent, and equilibrium density appears higher in multispecies assemblages than when wolves prey on only one deer species (CreÃte & Manseau 1996). The increased monopolization of ecosystem energ ...
blm tortoise information
... tortoises greater than seven inches long can be sexed reliably. Males tend to be larger than females, have a longer tail, longer upward curving gular horns, larger chin glands, and have a concave plastron (bottom portion of shell). Sexual maturity for tortoises occurs in March and April, and egg lay ...
... tortoises greater than seven inches long can be sexed reliably. Males tend to be larger than females, have a longer tail, longer upward curving gular horns, larger chin glands, and have a concave plastron (bottom portion of shell). Sexual maturity for tortoises occurs in March and April, and egg lay ...
Understanding the Invasion Ecology of Exotic Crayfish in California
... stream bed, waterfalls and culverts) are also effective at limiting their spread. ...
... stream bed, waterfalls and culverts) are also effective at limiting their spread. ...
Helgen and Wilson (2003) Journal of Zoology (Caribbean raccoons).
... Lesser Antilles have traditionally been recognized as distinctive species endemic to their respective islands. All three of these ‘species’ currently possess official conservation status of high concern. Bahamian and Guadeloupean raccoons are recognized as endangered species by the World Conservatio ...
... Lesser Antilles have traditionally been recognized as distinctive species endemic to their respective islands. All three of these ‘species’ currently possess official conservation status of high concern. Bahamian and Guadeloupean raccoons are recognized as endangered species by the World Conservatio ...
Physical Features Life History Food Habits and Behavior Predators
... older scat; whereas fresh scat is moist with a green pigment (remnant chlorophyll). White urine stains may also be found on rocks, surrounded by bright, orange‐colored nitrophilous lichen. ...
... older scat; whereas fresh scat is moist with a green pigment (remnant chlorophyll). White urine stains may also be found on rocks, surrounded by bright, orange‐colored nitrophilous lichen. ...
Monitoring data from citizen-science programs
... Ecological roles and conservation challenges of social, burrowing, herbivorous mammals in the world’s grasslands Ana D Davidson1,2*, James K Detling3, and James H Brown1 The world’s grassland ecosystems are shaped in part by a key functional group of social, burrowing, herbivorous mammals. Through h ...
... Ecological roles and conservation challenges of social, burrowing, herbivorous mammals in the world’s grasslands Ana D Davidson1,2*, James K Detling3, and James H Brown1 The world’s grassland ecosystems are shaped in part by a key functional group of social, burrowing, herbivorous mammals. Through h ...
The controversy space on Quaternary megafaunal extinctions
... accumulation of evidence (mostly fossils), we choose to start with the fossil problem because the understanding of fossils played a crucial role in nearly all episodes of the controversy space. The word fossil has meant different things e being used to describe any dug up material before the ninetee ...
... accumulation of evidence (mostly fossils), we choose to start with the fossil problem because the understanding of fossils played a crucial role in nearly all episodes of the controversy space. The word fossil has meant different things e being used to describe any dug up material before the ninetee ...
Gymnesic Islands, Western Mediterranean
... species in the fossil record of Cova de Moleta, whereas Reumer (1980) and Alcover et al. (1981) presented divergent views on the chronological order of the extinction of these species. According to Reumer (1980), E. morpheus disappeared before A. hidalgoi in Mallorca, while Alcover et al. (1981) and ...
... species in the fossil record of Cova de Moleta, whereas Reumer (1980) and Alcover et al. (1981) presented divergent views on the chronological order of the extinction of these species. According to Reumer (1980), E. morpheus disappeared before A. hidalgoi in Mallorca, while Alcover et al. (1981) and ...
ON THE ECOLOGY OF INVASIVE SPECIES, EXTINCTION
... Tershy, and Chris Wilcox. And extra thanks goes to by Tasmanian colleague Chris Wilcox for both taking me to some wonderful wild beaches and engaging me in some exciting conservation thinking (Wilcox & Donlan 2007). I would also like to thank some of my Cornell colleagues whom I have shared insightf ...
... Tershy, and Chris Wilcox. And extra thanks goes to by Tasmanian colleague Chris Wilcox for both taking me to some wonderful wild beaches and engaging me in some exciting conservation thinking (Wilcox & Donlan 2007). I would also like to thank some of my Cornell colleagues whom I have shared insightf ...
ON THE ECOLOGY OF INVASIVE SPECIES, EXTINCTION
... Tershy, and Chris Wilcox. And extra thanks goes to by Tasmanian colleague Chris Wilcox for both taking me to some wonderful wild beaches and engaging me in some exciting conservation thinking (Wilcox & Donlan 2007). I would also like to thank some of my Cornell colleagues whom I have shared insightf ...
... Tershy, and Chris Wilcox. And extra thanks goes to by Tasmanian colleague Chris Wilcox for both taking me to some wonderful wild beaches and engaging me in some exciting conservation thinking (Wilcox & Donlan 2007). I would also like to thank some of my Cornell colleagues whom I have shared insightf ...
Ecological roles and conservation challenges of social, burrowing
... Ecological roles and conservation challenges of social, burrowing, herbivorous mammals in the world’s grasslands Ana D Davidson1,2*, James K Detling3, and James H Brown1 The world’s grassland ecosystems are shaped in part by a key functional group of social, burrowing, herbivorous mammals. Through h ...
... Ecological roles and conservation challenges of social, burrowing, herbivorous mammals in the world’s grasslands Ana D Davidson1,2*, James K Detling3, and James H Brown1 The world’s grassland ecosystems are shaped in part by a key functional group of social, burrowing, herbivorous mammals. Through h ...
Notes towards Biodiversity Chapter 5
... shows that a nearby gamma ray burst is impossible because our galaxy is metal rich. Mass extinctions are considered too extensive and too sudden to be the result of biological causes such as disease or competition (Leakey and Lewin 1995, Wikipedia Contributors 2006c). The End Ordovician mass extinct ...
... shows that a nearby gamma ray burst is impossible because our galaxy is metal rich. Mass extinctions are considered too extensive and too sudden to be the result of biological causes such as disease or competition (Leakey and Lewin 1995, Wikipedia Contributors 2006c). The End Ordovician mass extinct ...
Notes towards Biodiversity Chapter 6
... time with widespread geographical (implying all habitat types – shallow and deep water and on land) and taxonomical (i.e. extinction of taxa from ecologically distant groups) impacts (Leakey & Lewin 1995, Freeman & Herron 1998, Broswimmer 2002). While mass extinctions remove more than 60% of species ...
... time with widespread geographical (implying all habitat types – shallow and deep water and on land) and taxonomical (i.e. extinction of taxa from ecologically distant groups) impacts (Leakey & Lewin 1995, Freeman & Herron 1998, Broswimmer 2002). While mass extinctions remove more than 60% of species ...
Ancient ecology of 15-million-year-old browsing
... relative to the known standard V-PDB (Coplen 1994). C3 plants, which photosynthesize carbon using the Calvin Cycle, comprise ~85% of terrestrial plant biomass, and include most trees, shrubs, and high-elevation, highlatitude, and other cool-growing season grasses, have a mean δ13C value of −27‰, wit ...
... relative to the known standard V-PDB (Coplen 1994). C3 plants, which photosynthesize carbon using the Calvin Cycle, comprise ~85% of terrestrial plant biomass, and include most trees, shrubs, and high-elevation, highlatitude, and other cool-growing season grasses, have a mean δ13C value of −27‰, wit ...
Great American Interchange
The Great American Interchange was an important paleozoogeographic event in which land and freshwater fauna migrated from North America via Central America to South America and vice versa, as the volcanic Isthmus of Panama rose up from the sea floor and bridged the formerly separated continents. The migration peaked dramatically around three million years (Ma) ago during the Piacenzian age.It resulted in the joining of the Neotropic (roughly South America) and Nearctic (roughly North America) ecozones definitively to form the Americas. The interchange is visible from observation of both stratigraphy and nature (neontology). Its most dramatic effect is on the zoogeography of mammals but it also gave an opportunity for reptiles, amphibians, arthropods, weak-flying or flightless birds, and even freshwater fish to migrate.The occurrence of the interchange was first discussed in 1876 by the ""father of biogeography"", Alfred Russel Wallace. Wallace had spent 1848–1852 exploring and collecting specimens in the Amazon Basin. Others who made significant contributions to understanding the event in the century that followed include Florentino Ameghino, W. D. Matthew, W. B. Scott, Bryan Patterson, George Gaylord Simpson and S. David Webb.Analogous interchanges occurred earlier in the Cenozoic, when the formerly isolated land masses of India and Africa made contact with Eurasia c. 50 and 30 Ma ago, respectively.