In his book Systematics and the Origin of Species ( 1942 ) he wrote that a species is not just a group of morphologically similar individuals, but a group that can breed only among themselves, excluding all others.

Systematics, in other words, is used to understand the evolutionary history of life on Earth.

Taxonomy is that part of Systematics concerned with topics ( a ) to ( d ) above.

Systematics is fundamental to biology because it is the foundation for all studies of organisms, by showing how any organism relates to other living things ( ancestor-descendant relationships ).

When the pair return to the game store, Hugo Carlaw ( Callum Keith Rennie ) informs them that Nourish is actually a double agent for Cortical Systematics, and the waiter whom Pikul shot was the actual contact.

Before Carlaw can kill Allegra, he is shot in the back by Vinokur, who is a double agent for Cortical Systematics.

An example of studies of this type is Richard B. Selander's Bionomics, Systematics and Phylogeny of Lytta, a Genus of Blister Beetles ( Coleoptera, Meloidae ), Illinois Biological Monographs: number 28, 1960.

Overlap with ecology is also prominent in the review journals Trends in Ecology and Evolution and Annual Review of Ecology, Evolution, and Systematics.

The journal is divided into the following sections: Morphology, Systematics, Evolution ; Sampling, Distribution, Dispersal ; Development, Life History ; Population and Community Ecology ; Behavior, Chemical Ecology ; Population Biology / Genetics ; Molecular Biology / Genomics ; Neurobiology, Physiology, Biochemistry ; Vector Control, Pest Management, Resistance, Repellents ; Arthropod / Host Interaction, immunity ; Vector / Pathogen / Host Interaction, Transmission ; Vector Borne Diseases, Surveillance, Prevention ; Direct Injury, Myiasis, Forensics ; Modeling / GIS, Risk Assessment, Economic Impact.

* German entomologist Willi Hennig's Phylogenetic Systematics is published in English, advancing the study of cladistics.

Systematics of shads is complex.

The Laboratory Plant Morphology, Systematics and Ecology was able to conclusively demonstrate that certain materials complement each other in a synergetic manner and provide soil conditioning benefits whose collective effect is better than the effect of their individual parts.

Some authorities retain Lafresnaye's position as a subspecies of the Buff-throated Woodcreeper, but the resulting group is polyphyletic ( see Systematics and evolution ).

Pseudorhipsalis is sometimes included in Disocactus, although kept separate by the International Cactaceae Systematics Group.

See also " Systematics " below and Kinyongia and Nadzikambia.

It also houses a state of the art Molecular Systematics and Evolutionary Genetics lab.

Systematics uses taxonomy as a primary tool in understanding organisms, as nothing about an organism's relationships with other living things can be understood without it first being properly studied and described in sufficient detail to identify and classify it correctly.

* How to be a Fig, Daniel H. Janzen, Annual Review of Ecology and Systematics, Vol.

Detailed information on all the specimens can be found though the Systematics Collections Data ( SCD ) website: http :// scd. landcareresearch. co. nz /

Researchers at the University of California, Berkeley ( especially Daniel McFadden, who won a " Nobel " Prize in Economics for his efforts ) and the Massachusetts Institute of Technology ( Moshe Ben-Akiva ) ( and in MIT associated consulting firms, especially Cambridge Systematics ) developed what has become known as choice models, direct demand models ( DDM ), Random Utility Models ( RUM ) or, in its most used form, the multinomial logit model ( MNL ).

Since the mid-1990s, the system produced by the International Cactaceae Systematics Group ( ICSG ) of the International Organization for Succulent Plant Study has been used as the basis of many published classifications.

* Systematics, cladistics, phylogenetics, phylogeography, biogeography and taxonomy classify and group species via common descent and regional associations.

* Siegel-Causey, Douglas ( 1991 ): Systematics and biogeography of North Pacific shags, with a description of a new species.

( 1997 ), interpreted by George Sangster in 1997, indicated that the olivaceous and Booted / Sykes's warbler grouping ( the subgenus Iduna ) are more closely related to Acrocephalus species than they are to Icterine and Melodious Warblers and as a result the Dutch Committee on Avian Systematics ( CSNA ) has moved these four species into Acrocephalus.

A number of species previously included in this family are now placed in the family Tityridae ( see Systematics ).

Systematics and phylogeny of the caryophyllidia-bearing dorids ( Mollusca, Nudibranchia ), with descriptions of a new genus and four new species from Indo-Pacific deep waters.

* Dooley, J. K., ( 1978 )., Systematics and biology of the tilefishes ( Perciformes: Branchiostegidae and Malacanthidae ), with descriptions of two new species., U. S. Nat.

These and other discoveries led Ernst Mayr to first formulate a theory on ring species in his 1942 study Systematics and the Origin of Species.

For classification and nomenclature of species there are special rules, which are maintained by the International Committee on Systematics of Prokaryotes ( ICSP ) Subcommittee on the Taxonomy of Mollicutes ( formerly the International Committee on Systematic Bacteriology ( ICSB ) Subcommittee on taxonomy of Mycoplasmatales ).

Systematics of the Abrocoma cinerea species complex ( Rodentia: Abrocomidae ), with a description of a new species of Abrocoma.

Systematics of the Abrocoma cinerea species complex ( Rodentia: Abrocomidae ), with a description of a new species of Abrocoma.

During his time at the museum he produced numerous publications on bird taxonomy, and in 1942 his first book, Systematics and the Origin of Species, which completed the evolutionary synthesis started by Darwin.

The study was conducted by Cambridge Systematics and concluded that when the ramp meters were turned off freeway capacity decreased by 9 %, travel times increased by 22 %, freeway speeds dropped by 7 % and crashes increased by 26 %.

* Systematics, Inc-a data processing company founded in 1968 by Arkansas superinvestor Jackson T. Stephens

In The Triune God: Systematics, Lonergan develops the theory of intelligible ( or spiritual ) emanations in God as propounded by Thomas Aquinas.

:* Systematics, Inc-founded in 1968 by Arkansas investor Jackson T. Stephens.

A special issue of Invertebrate Systematics was published in 2003 as a tribute to Nielsen, and contained articles written by his friends and colleagues about him and his work.

QAPF diagrams were created by the International Union of Geological Sciences ( IUGS ): Subcommission on the Systematics of Igneous Rocks.

* Heteropteran Systematics Lab at University of California, Riverside http :// heteroptera. ucr. edu

* Nymphalidae Systematics Group at the University of Turku

* Reduviidae Systematics Research at UC Riverside

In 1983, Prof. Dr. Willem Van Cotthem and a team from the Laboratory of Plant Morphology, Systematics and Ecology at the University of Ghent ( Belgium ) started a research program to grow plants in the Sahel region of Africa using less water.