Diver
Related Category: Vertebrate Zoology
general term used to refer to many diving birds, e.g., the loon, the grebe, and some ducks, auks, and penguins.
Species diversity can also be viewed in terms of habitat diversity and land area. To evaluate this, the diversity of Texas mammals was examined with respect to the 10 major vegetation regions in the state.
Diver
A diver is a person who practices scuba diving or surface supplied diving.
A diver is an athlete who practices diving in the sense of jumping or falling deliberately into water.
Divers
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Divers
Divers, also commonly known as loons, are water birds found in north America, Europe and Asia. There are five living species all in the same family (gaviidae) and order (gaviiformes).
Divers
A small family of large water birds, with three species regularly seen in the UK (two of which breed) plus one rare vagrant from northern Asia (the white-billed diver). There is another similar species (the Pacific loon) in North America.
Species Diversity
Look around you. You are surrounded by life - some of it you can see, some of it you can't see. Species diversity is the variety of life forms found on earth.
The diver's characteristic call is extremely loud and can be heard far away. It is used to proclaim the occupation of a territory. It sounds like a long, low-pitched whistle with some very clear notes interspersed. It is made by both mates at once.
Honey Bees' Diversity Helps Keep Them Cool
Buzzing with activity, a honey bee nest is always busy. And thanks to the promiscuous behavior of the queen, which mates with multiple males, colonies are also genetically diverse.
RED-THROATED DIVER, Colymbus septentrionalis, Swains. and Rich. F. Bor. Amer., vol. ii. p. 476.
RED-THROATED DIVER, Nutt. Man., vol. ii. p. 519.
RED-THROATED DIVER, Columbus septentrionalis, Aud. Orn. Biog., vol. iii.p. 20; vol. v. p. 625.
Red-throated Diver (Gavia stellata)
(aka Red-throated Loon)
Scotland
The Red-throated Diver breeds in very high latitudes round the Arctic in both Eurasia and North America. It also breeds in north-west Scotland.
Diversity
Metatherian mammals, also known as marsupials, comprise around 272 species. They are an ancient group, very diverse in body form, and they occupy an enormous range of ecological niches.
Diversity
The broad range of Southwest species, which thrive often under extreme conditions, speaks to the tenacity of life.
Diversity
Arkansas is a state rich in natural habitats and the 116 total reptile and amphibian species are a reflection of that diversity. While many species, such as the commonplace ...
Diverse Diet: A variety of small mammals such as mice, rats and rabbits make up the cougar's menu, but sheep, moose and other livestock may also find themselves on the dinner table.
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MORE WILD CATS ...
The diversity of Ceratomyxa on the Great Barrier Reef
*Nicole Gunter (University of Queensland, April/ May)
Myxosporean parasites of elasmobranchs
*Ricky Gleeson (University of Queensland, April/ May) ...
Deep divers: Narwhals are deep divers. During a typical deep dive the animal will descend at two meters per second for eight to ten minutes, reaching a depth of up to 1000 m, ...
[edit] Diversity and classification
Isopods belong to the larger group Peracarida, which are united by the presence of a special brood pouch for brooding eggs.
DEEPEST DIVERS
The sperm whale dives the deepest of all whales. It goes as deep as 10,500 feet (3,200) below the surface to hunt for giant squid. These dives last about 40 minutes, with a subsequent rest at the surface for at least 10 minutes.
Divers who come across a crocodile fish have little to worry about—the fish often remains very still, even if humans approach them.
References & Further Research ...
Divers, SJ. (1997). Clinician's Approach to Renal Disease in Lizards. Proc. 4th ARAV Conference. Houston, TX.
Frye, FL. 1991. Biomedical and Surgical Aspects of captive Reptile Husbandry, 2nd edition, vol. 1. Krieger Publishing Co. Malabar, FL.
Divers can also becomes susceptible to the effects of dissolved nitrogen. At depth, a diver breathes pressurized air, and gases become dissolved in the blood and tissues.
Diversity of Canada lynx prey items increases during the summer and during periods of snowshoe hare scarcity [80].
Divergent views have been held as to the morphological significance of the pneumatophore. E. Haeckel regarded the whole structure as a glandular ectodermal pit formed on the exumbral surface of a medusa-person. C. Chun and, more recently, R.
A diver shares a tank with an adult arapaima fish at an aquarium in Manaus, Brazil. Known as the pirarucu in Brazil and the paiche in Peru, this South America giant is one of the largest freshwater fish in the world.
The diverse habitat to be found on Fermilab's 6800 acres and the relative lack of disturbance combine to make Fermilab one of the best bird-watching locations in the entire Chicago area.
The diversity of Australia's flora and fauna extends to its impressive list of native colorful parakeets, which include several genera.
The diversity of species within Diprotodontia is exemplified by the size range of its largest and smallest Recent species. The largest is Macropus rufus at 100 kg. The smallest, Acrobates pygmaeus weighs only 15 grams.
The diverse Anthophorid bees are mainly fast-flying solitary bees. They can be small to fairly large (3 to 28 mm or ?to 1 ¼ in.).
Our divers quickly catch the newborns and move them to another area behind the scenes so they don’t end up as food for the larger roughtail and butterfly rays.
"The diversity of species in this find, combined with molecular data and study of characteristics from living salamanders, leads to the inescapable conclusion that almost all the major groups of salamanders evolved very early," said Shubin, ...
Very diverse, found in forests, swamps, grassland, and deserts
POPULATION:
REGIONAL ...
Diet diverse and variable. Primarily grazers of grass and forbs, but diet can also include significant amounts of shrubs (Miller and Gaud 1989, Krausman et al. 1999, Shackleton et al. 1999). Diet changes seasonally.
Expert divers, loons kick along the water before taking off in flight.
In flight, the head is lower than the body. Wing beats are fast,
uninterrupted by gliding.
Animal Diversity Web (animaldiversity.ummz.umich.edu)
Ursus (genus) (wikipedia.org)
Search term:
bbc.co.uk navigation ...
Animal Diversity Web
Publications -
Turtles and Turtle Watching for the North Central States. John J. Moriarty Published by the Nongame Wildlife Program.
Animal Diversity
UK Safari
Did You Know?
Did you know that silverfish are one of the oldest orders of insects in the world, evolving even before cockroaches?
Animal Diversity Web
Channel Islands National Park
The Nature Conservancy
Swift Fox ...
Prevent diversion of water from saline lakes and wetlands in western staging areas (Colwell and Jehl 1994). Preserve and/or restore wetlands (Johnson 1996).
The most diverse of the three groups is the darter. Except for the log perch, darters average 2-4 inches in length. Most of the species live in riffle or graveled stream habitats.
HABITAT: Diverse: New Jersey pine barrens to Florida Everglades; dry rocky wooded hillsides to river swamps and coastal marshes, and prairie, desert, and chaparral; sea level to 6,900' (2,100 m).
SPECIAL HABITAT: ...
Today, a diversity of recreation enthusiasts of all ages enjoys hunting and fishing opportunities statewide with:
330 Public Access Sites
130,000 acres for wildlife management
22 Fish and Wildlife Areas ...
Reptiles diverged from other amniotes between 320 and 310 million years ago during the late Carboniferous Period. Early reptiles were small, swamp-dwelling animals that resembled lizards. The first known true reptile is Hylonomus.
More About Reptiles ...
The basal divergence between the Pecora and Tragulina is well-supported by morphological and molecular evidence.
Excellent divers that feed mainly on schooling fish, Razorbills typically feed at ocean depths of 30 to 60 feet, but are known to dive up to 400 feet. Several fish may be caught in a single dive; fish may also be stolen from other auks.
While the diversity of bird species in the Pine Barrens is not particularly great, many species live within or migrate through the Pine Barrens.
Amazingly diverse pattern, especially considering this is the smallest butterfly species in the US.
Marine Blue (Leptotes marina)
Starr Co., TX 10/16/04.
Ceraunus Blue (Hemiargus ceraunus)
Mission, Hidalgo Co., TX 10/13/04.
Grebes are divers, medium in size with stocky bodies and small heads. The toes are lobed with flattened claws and the legs are positioned far back on the body so grebes are very awkward on land.
Dazzling Diversity
Scientists estimate that as many as 99% of all animal species are invertebrates.
FWC Facts:
Divers-down flags must be at least 20x24 inches, and use a stiffener to keep the flag unfurled. Dive flags carried on floats must be at least 12x12 inches.
Learn More at AskFWC
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Here's the "diver" we see most often in coastal waters and bays, the Common Loon (Gavia immer). This one was preening its white belly, and if you ever doubted the size and thickness of his bill, he's putting your uncertainty to rest.
The deepest diver is the Sperm Whale who dive to 10,500 feet to prey on Giant Squids.
Discover the diversity of life along a Carolina stream-from the mountains to the coast. Streams are part of "nature’s waterworks," an enormous circulating system that cleanses and distributes water across the land.
Red-throated Diver, Little Loon, Cape Drake, Cape Race, Cape Racer, Cobble, Pegging-Owl Loon, Pepper-shinned Loon, Scape-Grace, Sprat Loon, Rain Goose
Bird Family :
Gaviidae - Loons (Divers) ...
Dabblers vs. Divers; Skimming; How Do We Find Out About Bird Biology?; Swimming.
REFERENCES:
Bellrose, 1976; Gooders and Boyer, 1986.
2 Phylogeny, divergence times and species limits of spiny lizards (Sceloporus magister species group) in western North American deserts and Baja California
ADAM D. LEACHE and DANIEL G. MULCAHY
Molecular Ecology (2007) doi: 10.1111/j.1365-294X.2007.
Diptera are a diverse order with an enormous range of ecological roles. Every type of trophic level pattern can be seen in the Diptera. Dipteran predators include the robber flies (Asilidae).
'biological diversity' or 'biodiversity' means the variability among living organisms from all sources including, terrestrial, ...
This duck is a diver. It feeds on green plant material, including wild celery, seeds and some water-borne invertebrates. It frequents prairie marshes and wetlands in summer and salt bays in winter.
Collected by a diver at the depth of 110-120 meters off Okinawa.
Photo by Hiroyuki Tanaka
An extremely rare damsel.
The number and diversity of amphibian species were also closely correlated with June herbaceous cover and pond drydate, and with two additional features; cover of leaf litter in April, and distance to the nearest pond.
 See also: Reptile, Snake, Lizard, Burro, Genet
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