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Cherax
''Cherax'', commonly known as yabby/yabbies in Australia, is the most widespread genus of fully aquatic crayfish in the Southern Hemisphere. Various species of cherax may be found in both still and flowing bodies of freshwater across most of Australia and New Guinea. Together with '' Euastacus'', it is also the largest crayfish genus in the Southern Hemisphere. Habitat Members of the cherax genus can be found in lakes, rivers, and streams across most of Australia and New Guinea. The most common and widely distributed species in Australia is the common yabby (''C. destructor''). It is generally found in lowland rivers and streams, lakes, swamps, and impoundments at low to medium altitude, largely within the Murray–Darling Basin. Common yabbies are found in many ephemeral waterways, and can survive dry conditions for long periods of time (at least several years) by aestivating (lying dormant) in burrows sunk deep into muddy creek and swamp beds. In New Guinea, ''Cherax'' cr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cherax Papuanus
''Cherax'', commonly known as yabby/yabbies in Australia, is the most widespread genus of fully aquatic crayfish in the Southern Hemisphere. Various species of cherax may be found in both still and flowing bodies of freshwater across most of Australia and New Guinea. Together with ''Euastacus'', it is also the largest crayfish genus in the Southern Hemisphere. Habitat Members of the cherax genus can be found in lakes, rivers, and streams across most of Australia and New Guinea. The most common and widely distributed species in Australia is the common yabby (''C. destructor''). It is generally found in upland and lowland (freshwater ecology), lowland rivers and streams, lakes, swamps, and impoundments at low to medium altitude, largely within the Murray–Darling Basin. Common yabbies are found in many ephemeral waterways, and can survive dry conditions for long periods of time (at least several years) by aestivation, aestivating (lying dormant) in burrows sunk deep into muddy ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Common Yabby
The common yabby (''Cherax destructor'') is an Australian freshwater crustacean in the Parastacidae family. It is listed as a vulnerable species of crayfish by the International Union for Conservation of Nature (IUCN), though the wild yabby populations remain strong, and have expanded into new habitats created by reservoirs and farm dams. Other names frequently used for ''Cherax destructor'' include the blue yabby or cyan yabby. Its common name of " yabby" is also applied to many other Australian '' Cherax'' species of crustacean (as well as to marine ghost shrimp of the infraorder Thalassinidea). Yabbies occasionally reach up to in length, but are more commonly long. Colour is highly variable and depends on water clarity and habitat; yabbies can range from black, blue-black, or dark brown in clear waters to light brown, green-brown, or beige in turbid waters. Yabbies specifically bred to be a vibrant blue colour are now popular in the aquarium trade in Australia. Dur ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cherax Blue Moon
''Cherax'', commonly known as yabby/yabbies in Australia, is the most widespread genus of fully aquatic crayfish in the Southern Hemisphere. Various species of cherax may be found in both still and flowing bodies of freshwater across most of Australia and New Guinea. Together with '' Euastacus'', it is also the largest crayfish genus in the Southern Hemisphere. Habitat Members of the cherax genus can be found in lakes, rivers, and streams across most of Australia and New Guinea. The most common and widely distributed species in Australia is the common yabby (''C. destructor''). It is generally found in lowland rivers and streams, lakes, swamps, and impoundments at low to medium altitude, largely within the Murray–Darling Basin. Common yabbies are found in many ephemeral waterways, and can survive dry conditions for long periods of time (at least several years) by aestivating (lying dormant) in burrows sunk deep into muddy creek and swamp beds. In New Guinea, ''Cherax'' c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Crayfish
Crayfish are freshwater crustaceans belonging to the infraorder Astacidea, which also contains lobsters. Taxonomically, they are members of the superfamilies Astacoidea and Parastacoidea. They breathe through feather-like gills. Some species are found in brooks and streams, where fresh water is running, while others thrive in swamps, ditches, and paddy fields. Most crayfish cannot tolerate polluted water, although some species, such as '' Procambarus clarkii'', are hardier. Crayfish feed on animals and plants, either living or decomposing, and detritus. The term "crayfish" is applied to saltwater species in some countries. Terminology The name "crayfish" comes from the Old French word ' ( Modern French '). The word has been modified to "crayfish" by association with "fish" ( French language">Modern French '). The word has been modified to "crayfish" by association with "fish" ( American variant "crawfish" is similarly derived. Some kinds of crayfish are known lo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Troglobite
A troglobite (or, formally, troglobiont) is an animal species, or population of a species, strictly bound to underground habitats, such as caves. These are separate from species that mainly live in above-ground habitats but are also able to live underground (eutroglophiles), and species that are only cave visitors (subtroglophiles and trogloxenes). Land-dwelling troglobites may be referred to as troglofauna, while aquatic species may be called stygofauna, although for these animals the term ''stygobite'' is preferable. Troglobites typically have evolutionary adaptations to cave life. Examples of such adaptations include slow metabolism, reduced energy consumption, better food usage efficiency, decrease or loss of eyesight (anophthalmia), and depigmentation (absence of pigment in the integument). Conversely, as opposed to lost or reduced functions, many species have evolved elongated antenna (biology), antenna and leg, locomotory appendages, in order to better move around and respon ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Carnegie Museum Of Natural History
The Carnegie Museum of Natural History (abbreviated as CMNH) is a natural history museum in the Oakland (Pittsburgh), Oakland neighborhood of Pittsburgh, Pennsylvania. It was founded by List of people from the Pittsburgh metropolitan area, Pittsburgh-based industrialist Andrew Carnegie in 1896. Housing some 22 million specimens, the museum features one of the most extensive paleontological and entomological collections in the world. Description and history The museum consists of organized into 20 galleries as well as research, library, and office space. It holds some 22 million specimens, of which about 10,000 are on view at any given time and about 1 million are cataloged in online databases. In 2008 it hosted 386,300 admissions and 63,000 school group visits. Museum education staff also actively engage in outreach by traveling to schools all around western Pennsylvania. The museum gained prominence in 1899 when its scientists unearthed the fossils of ''Diplodocus carnegi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cherax Preissii
''Cherax preissii'', the common koonac, is a Western Australian freshwater crustacean in the Parastacidae family. Its common name of " koonac" is also applied to another Western Australian ''Cherax'' species of crustacean ''C. glaber'', the "glossy koonac", which is restricted to a much smaller region of WA. Koonacs can grow up to 20 cm and may be coloured black and red, dark brown, or bluish black. They have broad, serrated claws and four keels on the head, two of which are prominent. Ecology Koonacs are endemic to the southwest of Western Australia, in wetlands, permanent and seasonal waterways, and farm dams. They are able to survive seasonal dryness for several months by digging burrows. Although they are rated as "least concern" on the IUCN redlist, local populations may be under threat by introduced eastern states yabbies such as ''Cherax destructor The common yabby (''Cherax destructor'') is an Australian freshwater crustacean in the Parastacidae family (bio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Honest Signal
Within evolutionary biology, signalling theory is a body of theoretical work examining communication between individuals, both within species and across species. The central question is how organisms with conflicting interests, such as in sexual selection, are expected to provide honest signals rather than deceive or cheat, given that the passing on of pleiotropic traits is subject to natural selection, which aims to minimize associated costs without assuming any conscious intent. Mathematical models describe how signalling can contribute to an evolutionarily stable strategy. Signals are given in contexts such as mate selection by females, which subjects the advertising males' signals to selective pressure. Signals thus evolve because they modify the behaviour of the receiver to benefit the signaller. Signals may be honest, conveying information which usefully increases the fitness of the receiver, or dishonest. An individual can cheat by giving a dishonest signal, which m ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Functional Ecology (journal)
''Functional Ecology'' is a monthly peer-reviewed scientific journal covering physiological, behavioural, and evolutionary ecology, as well as ecosystems and community ecology, emphasizing an integrative approach. The journal was established in 1987 and is published by Wiley-Blackwell on behalf of the British Ecological Society. The editors-in-chief are Lara Ferry (Arizona State University), Charles Fox (University of Kentucky), Katie Field (University of Sheffield), Emma Sayer (University of Lancaster), and Enrico Rezende (Pontifical Catholic University of Chile). Abstracting and indexing The journal is abstracted and indexed in Aquatic Sciences and Fisheries Abstracts, BIOSIS Previews, Current Contents/Agriculture, Biology & Environmental Sciences, the Science Citation Index, Scopus. According to the ''Journal Citation Reports'', the journal has a 2021 impact factor of 6.28. Types of papers The journal publishes the following types of papers: * Standard Research Papers - a typic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Journal Of Crustacean Biology
The ''Journal of Crustacean Biology'' is a quarterly peer-reviewed scientific journal in the field of carcinology (crustacean research). It is published by The Crustacean Society and Oxford University Press (formerly by Brill Publishers and Allen Press), and since 2015 the editor-in-chief has been Peter Castro. According to the ''Journal Citation Reports'', its 2016 impact factor is 1.064. The journal has a mandatory publication fee of US$ 115 per printed page for non-members of the SocietyJournal of Crustacean BiologyInstructions for Authors/ref> and an optional open access Open access (OA) is a set of principles and a range of practices through which nominally copyrightable publications are delivered to readers free of access charges or other barriers. With open access strictly defined (according to the 2001 de ... fee of $1830 minimum. References Further reading * * External links Carcinology journals Academic journals established in 1981 English-langua ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
BMC Biology
''BMC Biology'' is an online open access scientific journal that publishes original, peer-reviewed research in all fields of biology, together with opinion and comment articles. The publication was established in 2003. The journal is part of a series of BMC journals published by the UK-based publisher BioMed Central, owned by Springer Nature. The journal has an international editorial board of researchers and editorial offices in London and New York. Since 2010 it has incorporated what was previously the separate ''Journal of Biology''. Video abstracts associated with the BMC Biology articles are collected on the BMC YouTube Channel. Abstracting and Indexing BMC Biology is indexed in PubMed, MEDLINE (added in 2005), BIOSIS Previews, Chemical Abstracts Service, EMBASE, Scopus, Zoological Record, CAB International, Institute for Scientific Information and Google Scholar. The journal has a (2019) impact factor The impact factor (IF) or journal impact factor (JIF) of an aca ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
