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60-433: About 140; see text Limlia Masamune & Tomiya Pasaniopsis Kudo Shiia Makino and see text Castanopsis , commonly called chinquapin or chinkapin , is a genus of evergreen trees belonging to the beech family, Fagaceae . The genus contains about 140 species , which are today restricted to tropical and subtropical eastern Asia . A total of 58 species are native to China , with 30 endemic ;

120-619: A free content work. Licensed under CC BY-SA 3.0 ( license statement/permission ). Text taken from Global Forest Resources Assessment 2020 Key findings​ , FAO, FAO. [REDACTED]  This article incorporates text from a free content work. Licensed under CC BY-SA 3.0 IGO ( license statement/permission ). Text taken from The State of the World's Forests 2020. Forests, biodiversity and people – In brief​ , FAO & UNEP, FAO & UNEP. [REDACTED]  This article incorporates text from

180-596: A faculty at the Federal University of Paraná , in Curitiba. Today, forestry education typically includes training in general biology , ecology , botany , genetics , soil science , climatology , hydrology , economics and forest management . Education in the basics of sociology and political science is often considered an advantage. Professional skills in conflict resolution and communication are also important in training programs. In India, forestry education

240-407: A genus is determined by taxonomists . The standards for genus classification are not strictly codified, so different authorities often produce different classifications for genera. There are some general practices used, however, including the idea that a newly defined genus should fulfill these three criteria to be descriptively useful: Moreover, genera should be composed of phylogenetic units of

300-643: A later homonym of a validly published name is a nomen illegitimum or nom. illeg. ; for a full list refer to the International Code of Nomenclature for algae, fungi, and plants and the work cited above by Hawksworth, 2010. In place of the "valid taxon" in zoology, the nearest equivalent in botany is " correct name " or "current name" which can, again, differ or change with alternative taxonomic treatments or new information that results in previously accepted genera being combined or split. Prokaryote and virus codes of nomenclature also exist which serve as

360-621: A long time and redescribed as new by a range of subsequent workers, or if a range of genera previously considered separate taxa have subsequently been consolidated into one. For example, the World Register of Marine Species presently lists 8 genus-level synonyms for the sperm whale genus Physeter Linnaeus, 1758, and 13 for the bivalve genus Pecten O.F. Müller, 1776. Within the same kingdom, one generic name can apply to one genus only. However, many names have been assigned (usually unintentionally) to two or more different genera. For example,

420-450: A mixture of the two. Techniques include timber extraction, planting and replanting of different species , building and maintenance of roads and pathways through forests, and preventing fire . The first dedicated forestry school was established by Georg Ludwig Hartig at Hungen in the Wetterau , Hesse , in 1787, though forestry had been taught earlier in central Europe, including at

480-409: A reference for designating currently accepted genus names as opposed to others which may be either reduced to synonymy, or, in the case of prokaryotes, relegated to a status of "names without standing in prokaryotic nomenclature". An available (zoological) or validly published (botanical) name that has been historically applied to a genus but is not regarded as the accepted (current/valid) name for

540-455: A region. A related discipline is the study of sylvics, which focuses on the autecology of genera and species. The provenance of forest reproductive material used to plant forests has a great influence on how the trees develop, hence why it is important to use forest reproductive material of good quality and of high genetic diversity . More generally, all forest management practices, including in natural regeneration systems , may impact

600-427: A taxon; however, the names published in suppressed works are made unavailable via the relevant Opinion dealing with the work in question. In botany, similar concepts exist but with different labels. The botanical equivalent of zoology's "available name" is a validly published name . An invalidly published name is a nomen invalidum or nom. inval. ; a rejected name is a nomen rejiciendum or nom. rej. ;

660-455: A total of c. 520,000 published names (including synonyms) as at end 2019, increasing at some 2,500 published generic names per year. "Official" registers of taxon names at all ranks, including genera, exist for a few groups only such as viruses and prokaryotes, while for others there are compendia with no "official" standing such as Index Fungorum for fungi, Index Nominum Algarum and AlgaeBase for algae, Index Nominum Genericorum and

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720-444: A well-developed cuticula . Their flowers are unisexual , and the male ones are borne in erect catkins . The epigynous female flowers produce a single seed each but are congregated in small clusters. The fruit is a calybium , the kind of encased nut typical of Fagaceae. The calybium (nut) resembles a pointed acorn ; the cupule (casing) is hard like that of beechnuts and spiny like that of chestnuts. Three thickened ridges run

780-920: Is an important economic segment in various industrial countries, as forests provide more than 86 million green jobs and support the livelihoods of many more people. For example, in Germany, forests cover nearly a third of the land area, wood is the most important renewable resource , and forestry supports more than a million jobs and about €181 billion of value to the German economy each year. Worldwide, an estimated 880 million people spend part of their time collecting fuelwood or producing charcoal, many of them women.  Human populations tend to be low in areas of low-income countries with high forest cover and high forest biodiversity, but poverty rates in these areas tend to be high. Some 252 million people living in forests and savannahs have incomes of less than US$ 1.25 per day. Over

840-596: Is discouraged by both the International Code of Zoological Nomenclature and the International Code of Nomenclature for algae, fungi, and plants , there are some five thousand such names in use in more than one kingdom. For instance, A list of generic homonyms (with their authorities), including both available (validly published) and selected unavailable names, has been compiled by the Interim Register of Marine and Nonmarine Genera (IRMNG). The type genus forms

900-621: Is imparted in the agricultural universities and in Forest Research Institutes (deemed universities). Four year degree programmes are conducted in these universities at the undergraduate level. Masters and Doctorate degrees are also available in these universities. In the United States, postsecondary forestry education leading to a Bachelor's degree or Master's degree is accredited by the Society of American Foresters . In Canada

960-610: Is mainly suitable to regions with small-scale multi-functional forest management systems Forestry literature is the books, journals and other publications about forestry. The first major works about forestry in the English language included Roger Taverner 's Booke of Survey (1565), John Manwood 's A Brefe Collection of the Lawes of the Forrest (1592) and John Evelyn 's Sylva (1662). [REDACTED]  This article incorporates text from

1020-520: Is no sharp boundary between plant taxonomy and dendrology; woody plants not only belong to many different plant families , but these families may be made up of both woody and non-woody members. Some families include only a few woody species . Dendrology, as a discipline of industrial forestry, tends to focus on identification of economically useful woody plants and their taxonomic interrelationships. As an academic course of study, dendrology will include all woody plants, native and non-native, that occur in

1080-460: Is somewhat arbitrary. Although all species within a genus are supposed to be "similar", there are no objective criteria for grouping species into genera. There is much debate among zoologists about whether enormous, species-rich genera should be maintained, as it is extremely difficult to come up with identification keys or even character sets that distinguish all species. Hence, many taxonomists argue in favor of breaking down large genera. For instance,

1140-474: Is the type species , and the generic name is permanently associated with the type specimen of its type species. Should the specimen turn out to be assignable to another genus, the generic name linked to it becomes a junior synonym and the remaining taxa in the former genus need to be reassessed. In zoological usage, taxonomic names, including those of genera, are classified as "available" or "unavailable". Available names are those published in accordance with

1200-436: Is the biological science of studying forests and woodlands , incorporating the understanding of natural forest ecosystems , and the effects and development of silvicultural practices. The term complements silviculture , which deals with the art and practice of forest management. Silvology is seen as a single science for forestry and was first used by Professor Roelof A.A. Oldeman at Wageningen University . It integrates

1260-482: Is the extraction of forest products, are planned and managed to utilize a mix of ecological and agroecological principles. In many regions of the world there is considerable conflict between forest practices and other societal priorities such as water quality, watershed preservation, sustainable fishing, conservation, and species preservation. Silvology ( Latin : silva or sylva , "forests and woods"; Ancient Greek : -λογία , -logia , "science of" or "study of")

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1320-431: Is the foundation of biological diversity at species and ecosystem levels. Forest genetic resources are therefore important to consider in forest management. Genetic diversity in forests is threatened by forest fires , pests and diseases, habitat fragmentation , poor silvicultural practices and inappropriate use of forest reproductive material. About 98 million hectares of forest were affected by fire in 2015; this

1380-583: Is the source of much of the lignite ("brown coal") deposits in Western and Central Europe. Most species yield valuable timber but some have become rare due to unsustainable logging ; C. catappaefolia is even in danger of extinction . As noted above, however, perhaps the most important use for Castanopsis wood is in its fossil form. 175,400 metric tons of lignite - much of which was former chinkapin trees - were mined in Germany in 2001. As with many Fagaceae,

1440-621: The International Code of Zoological Nomenclature ; the earliest such name for any taxon (for example, a genus) should then be selected as the " valid " (i.e., current or accepted) name for the taxon in question. Consequently, there will be more available names than valid names at any point in time; which names are currently in use depending on the judgement of taxonomists in either combining taxa described under multiple names, or splitting taxa which may bring available names previously treated as synonyms back into use. "Unavailable" names in zoology comprise names that either were not published according to

1500-799: The International Plant Names Index for plants in general, and ferns through angiosperms, respectively, and Nomenclator Zoologicus and the Index to Organism Names for zoological names. Totals for both "all names" and estimates for "accepted names" as held in the Interim Register of Marine and Nonmarine Genera (IRMNG) are broken down further in the publication by Rees et al., 2020 cited above. The accepted names estimates are as follows, broken down by kingdom: The cited ranges of uncertainty arise because IRMNG lists "uncertain" names (not researched therein) in addition to known "accepted" names;

1560-560: The Pacific but absent from North America east of the Rocky Mountains suggests that they are indeed correctly assigned to Castanopsis . In addition, two form taxa refer to the remains of these trees, at least in part: the fossil wood Castanoxylon eschweilerense and the fossil pollen Tricolporopollenites cingulum ssp. pusillus . Castanopsis praefissa and Castanopsis praeouonbiensis are described from fossil specimens collected from

1620-735: The University of Giessen , in Hesse-Darmstadt . In Spain, the first forestry school was the Forest Engineering School of Madrid ( Escuela Técnica Superior de Ingenieros de Montes ), founded in 1844. The first in North America, the Biltmore Forest School was established near Asheville , North Carolina, by Carl A. Schenck on September 1, 1898, on the grounds of George W. Vanderbilt's Biltmore Estate . Another early school

1680-740: The effects of climate change . Most countries in Europe have recommendations or guidelines for selecting species and provenances that can be used in a given site or zone. Forest management is a branch of forestry concerned with overall administrative, legal, economic, and social aspects, as well as scientific and technical aspects, such as silviculture , forest protection , and forest regulation . This includes management for timber, aesthetics , recreation , urban values, water , wildlife , inland and nearshore fisheries, wood products , plant genetic resources , and other forest resource values . Management objectives can be for conservation, utilisation, or

1740-419: The nomenclature codes , which allow each species a single unique name that, for animals (including protists ), plants (also including algae and fungi ) and prokaryotes ( bacteria and archaea ), is Latin and binomial in form; this contrasts with common or vernacular names , which are non-standardized, can be non-unique, and typically also vary by country and language of usage. Except for viruses ,

1800-568: The nuts of many Castanopsis species are edible. The trees may be grown for their nuts, but more often they are used as forestry or ornamental trees and the nuts are collected opportunistically. Among many animals, such as tits , corvids , rodents , deer and pigs , the nuts are popular as food too. Meguro, Tokyo and Matsudo, Chiba in Japan use shii (椎; Castanopsis cuspidata ) as one of their municipal symbols. The well-known and commercially important shiitake mushroom likes to grow on

1860-404: The platypus belongs to the genus Ornithorhynchus although George Shaw named it Platypus in 1799 (these two names are thus synonyms ) . However, the name Platypus had already been given to a group of ambrosia beetles by Johann Friedrich Wilhelm Herbst in 1793. A name that means two different things is a homonym . Since beetles and platypuses are both members of the kingdom Animalia,

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1920-1184: The Canadian Institute of Forestry awards silver rings to graduates from accredited university BSc programs, as well as college and technical programs. In many European countries, training in forestry is made in accordance with requirements of the Bologna Process and the European Higher Education Area . The International Union of Forest Research Organizations is the only international organization that coordinates forest science efforts worldwide. In order to keep up with changing demands and environmental factors, forestry education does not stop at graduation. Increasingly, forestry professionals engage in regular training to maintain and improve on their management practices. An increasingly popular tool are marteloscopes ; one hectare large, rectangular forest sites where all trees are numbered, mapped and recorded. These sites can be used to do virtual thinnings and test one's wood quality and volume estimations as well as tree microhabitats . This system

1980-442: The base for higher taxonomic ranks, such as the family name Canidae ("Canids") based on Canis . However, this does not typically ascend more than one or two levels: the order to which dogs and wolves belong is Carnivora ("Carnivores"). The numbers of either accepted, or all published genus names is not known precisely; Rees et al., 2020 estimate that approximately 310,000 accepted names (valid taxa) may exist, out of

2040-706: The biological, physical, social, political and managerial sciences. Forest management plays an essential role in the creation and modification of habitats and affects ecosystem services provisioning. Modern forestry generally embraces a broad range of concerns, in what is known as multiple-use management, including: the provision of timber , fuel wood, wildlife habitat , natural water quality management , recreation , landscape and community protection, employment, aesthetically appealing landscapes , biodiversity management, watershed management , erosion control , and preserving forests as " sinks " for atmospheric carbon dioxide . Forest ecosystems have come to be seen as

2100-555: The closest affinity to C. fissa , and C. praeouonbiensis closely resembles C. ouonbiensis . Castanopsis praeouonbiensis and C. praefissa became extinct in this area because of the cooling climate from the late Miocene to the present day in Zhejiang Province. The oldest known records of the genus are those of Castanopsis rothwellii and Castaneophyllum patagonicum from the Eocene of Patagonia. Genus The composition of

2160-446: The form "author, year" in zoology, and "standard abbreviated author name" in botany. Thus in the examples above, the genus Canis would be cited in full as " Canis Linnaeus, 1758" (zoological usage), while Hibiscus , also first established by Linnaeus but in 1753, is simply " Hibiscus L." (botanical usage). Each genus should have a designated type , although in practice there is a backlog of older names without one. In zoology, this

2220-727: The generic name (or its abbreviated form) still forms the leading portion of the scientific name, for example, Canis lupus lupus for the Eurasian wolf subspecies, or as a botanical example, Hibiscus arnottianus ssp. immaculatus . Also, as visible in the above examples, the Latinised portions of the scientific names of genera and their included species (and infraspecies, where applicable) are, by convention, written in italics . The scientific names of virus species are descriptive, not binomial in form, and may or may not incorporate an indication of their containing genus; for example,

2280-647: The genetic diversity of trees. The term genetic diversity describes the differences in DNA sequence between individuals as distinct from variation caused by environmental influences. The unique genetic composition of an individual (its genotype ) will determine its performance (its phenotype ) at a particular site. Genetic diversity is needed to maintain the vitality of forests and to provide resilience to pests and diseases . Genetic diversity also ensures that forest trees can survive, adapt and evolve under changing environmental conditions. Furthermore, genetic diversity

2340-628: The largest component, with 23,236 ± 5,379 accepted genus names, of which 20,845 ± 4,494 are angiosperms (superclass Angiospermae). By comparison, the 2018 annual edition of the Catalogue of Life (estimated >90% complete, for extant species in the main) contains currently 175,363 "accepted" genus names for 1,744,204 living and 59,284 extinct species, also including genus names only (no species) for some groups. The number of species in genera varies considerably among taxonomic groups. For instance, among (non-avian) reptiles , which have about 1180 genera,

2400-639: The latter, they are characteristic elements of the climax vegetation in essentially their entire continental Asian range, as well as on Taiwan . Plants of this genus grow on many soil types, as long as they are not calcareous . Several species have adapted to podsolic , peat bog , swamp and other acidic and/or wet soils, or to the poor dry soils common in arid habitat. Around the Oligo - Miocene boundary, Castanopsis grew abundantly along rivers and in bogs and swamps of then-subtropical Europe . The prehistoric plant community Castanopsietum oligo-miocenicum

2460-548: The length of the calybium's shell. In their rather circumscribed area of occurrence, Castanopsis are able to inhabit a wide range of temperate to tropical habitat and are often keystone species in their ecosystems. They are plentiful in ecotones as diverse as Borneo montane rain forests , Taiwan subtropical evergreen forests and Northern Triangle temperate forests . Generally they are common in Fagales -dominated montane forests and temperate to subtropical laurel forests . In

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2520-494: The lizard genus Anolis has been suggested to be broken down into 8 or so different genera which would bring its ~400 species to smaller, more manageable subsets. Forestry Forestry is the science and craft of creating, managing, planting, using, conserving and repairing forests and woodlands for associated resources for human and environmental benefits. Forestry is practiced in plantations and natural stands . The science of forestry has elements that belong to

2580-430: The logs of C. cuspidata and derives its common name from this: shii-take simply means " Castanopsis cuspidata mushroom". Main article: List of Castanopsis species Fossil species known from Miocene Europe are: These are known and identifiable from their fruit. It is not entirely clear if they belong here or into Chrysolepis , but the pattern of biogeography - with the two genera being most diverse around

2640-403: The most (>300) have only 1 species, ~360 have between 2 and 4 species, 260 have 5–10 species, ~200 have 11–50 species, and only 27 genera have more than 50 species. However, some insect genera such as the bee genera Lasioglossum and Andrena have over 1000 species each. The largest flowering plant genus, Astragalus , contains over 3,000 species. Which species are assigned to a genus

2700-442: The most important component of the biosphere , and forestry has emerged as a vital applied science , craft , and technology . A practitioner of forestry is known as a forester . Another common term is silviculturist. Silviculture is narrower than forestry, being concerned only with forest plants, but is often used synonymously with forestry. All people depend upon forests and their biodiversity, some more than others. Forestry

2760-428: The name could not be used for both. Johann Friedrich Blumenbach published the replacement name Ornithorhynchus in 1800. However, a genus in one kingdom is allowed to bear a scientific name that is in use as a generic name (or the name of a taxon in another rank) in a kingdom that is governed by a different nomenclature code. Names with the same form but applying to different taxa are called "homonyms". Although this

2820-776: The other species occur further south, through Indochina to Indonesia and the Philippines , mountainous areas of Taiwan , and also in Japan . The English name chinkapin is shared with other related plants, including the golden chinkapins of the Pacific United States , which are sometimes included within Castanopsis but are more often considered a separate but very closely related genus, Chrysolepis . They show many characters typical of Fagaceae . They are at least large shrubs but some species grow into sizeable trees. Their leaves are usually tough and much sclerotized and have

2880-440: The past centuries, forestry was regarded as a separate science. With the rise of ecology and environmental science , there has been a reordering in the applied sciences. In line with this view, forestry is a primary land-use science comparable with agriculture . Under these headings, the fundamentals behind the management of natural forests comes by way of natural ecology. Forests or tree plantations, those whose primary purpose

2940-526: The provisions of the ICZN Code, e.g., incorrect original or subsequent spellings, names published only in a thesis, and generic names published after 1930 with no type species indicated. According to "Glossary" section of the zoological Code, suppressed names (per published "Opinions" of the International Commission of Zoological Nomenclature) remain available but cannot be used as the valid name for

3000-466: The same kind as other (analogous) genera. The term "genus" comes from Latin genus , a noun form cognate with gignere ('to bear; to give birth to'). The Swedish taxonomist Carl Linnaeus popularized its use in his 1753 Species Plantarum , but the French botanist Joseph Pitton de Tournefort (1656–1708) is considered "the founder of the modern concept of genera". The scientific name (or

3060-408: The scientific epithet) of a genus is also called the generic name ; in modern style guides and science, it is always capitalised. It plays a fundamental role in binomial nomenclature , the system of naming organisms , where it is combined with the scientific name of a species : see Botanical name and Specific name (zoology) . The rules for the scientific names of organisms are laid down in

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3120-497: The specific name particular to the wolf. A botanical example would be Hibiscus arnottianus , a particular species of the genus Hibiscus native to Hawaii. The specific name is written in lower-case and may be followed by subspecies names in zoology or a variety of infraspecific names in botany . When the generic name is already known from context, it may be shortened to its initial letter, for example, C. lupus in place of Canis lupus . Where species are further subdivided,

3180-412: The standard format for a species name comprises the generic name, indicating the genus to which the species belongs, followed by the specific epithet, which (within that genus) is unique to the species. For example, the gray wolf 's scientific name is Canis lupus , with Canis ( Latin for 'dog') being the generic name shared by the wolf's close relatives and lupus (Latin for 'wolf') being

3240-435: The study of forests and forest ecology, dealing with single tree autecology and natural forest ecology . Dendrology ( Ancient Greek : δένδρον , dendron , "tree"; and Ancient Greek : -λογία , -logia , science of or study of ) or xylology ( Ancient Greek : ξύλον , ksulon , "wood") is the science and study of woody plants ( trees , shrubs , and lianas ), specifically, their taxonomic classifications. There

3300-403: The taxon is termed a synonym ; some authors also include unavailable names in lists of synonyms as well as available names, such as misspellings, names previously published without fulfilling all of the requirements of the relevant nomenclatural code, and rejected or suppressed names. A particular genus name may have zero to many synonyms, the latter case generally if the genus has been known for

3360-409: The upper Miocene Shengxian Formation, Zhejiang Province , Southeast China . The fossil leaves are obovate to elliptical with serration mostly confined to the upper 1/3 of the leaf. The fossil cupule (upper part of the acorn) is globose with branched spines, and a broadly ovate nut scar. The fossil leaves and cupule have been compared with those extant in this genus. Castanopsis praefissa shows

3420-566: The values quoted are the mean of "accepted" names alone (all "uncertain" names treated as unaccepted) and "accepted + uncertain" names (all "uncertain" names treated as accepted), with the associated range of uncertainty indicating these two extremes. Within Animalia, the largest phylum is Arthropoda , with 151,697 ± 33,160 accepted genus names, of which 114,387 ± 27,654 are insects (class Insecta). Within Plantae, Tracheophyta (vascular plants) make up

3480-429: The virus species " Salmonid herpesvirus 1 ", " Salmonid herpesvirus 2 " and " Salmonid herpesvirus 3 " are all within the genus Salmonivirus ; however, the genus to which the species with the formal names " Everglades virus " and " Ross River virus " are assigned is Alphavirus . As with scientific names at other ranks, in all groups other than viruses, names of genera may be cited with their authorities, typically in

3540-478: Was mainly in the tropical domain, where fire burned about 4 percent of the total forest area in that year. More than two-thirds of the total forest area affected was in Africa and South America. Insects, diseases and severe weather events damaged about 40 million hectares of forests in 2015, mainly in the temperate and boreal domains. Furthermore, the marginal populations of many tree species are facing new threats due to

3600-625: Was the New York State College of Forestry , established at Cornell University just a few weeks later, in September 1898. Early 19th century North American foresters went to Germany to study forestry. Some early German foresters also emigrated to North America. In South America the first forestry school was established in Brazil, in Viçosa , Minas Gerais , in 1962, and moved the next year to become

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