These trees differ from the birches ( Betula, the other genus in the family ) in that the female catkins are woody and do not disintegrate at maturity, opening to release the seeds in a similar manner to many conifer cones.

These effects have been used by Sepp Holzer for one to allow fruit trees to survive at otherwise inhospitable temperatures and altitudes.

These 26 major types can be reclassified into 6 broader categories: temperate needleleaf ; temperate broadleaf and mixed ; tropical moist ; tropical dry ; sparse trees and parkland ; and forest plantations.

These groups appear as the most primitive eukaryotes on phylogenetic trees constructed using rRNA information, which once suggested that they appeared before the origin of mitochondria.

These palm trees provide shade for smaller trees like peach trees, which form the middle layer.

These data were originally published in Howlett and Majerus ( 1987 ), and an updated version published in Majerus ( 1998 ), who concluded that the moths rest in the upper part of the trees.

These leaves need not be explicit in computer memory — a null child pointer can encode the fact that this child is a leaf — but it simplifies some algorithms for operating on red – black trees if the leaves really are explicit nodes.

These constraints enforce a critical property of red – black trees: that the path from the root to the furthest leaf is no more than twice as long as the path from the root to the nearest leaf.

These travels explain as well how the vinviðir ( wine wood ) the Norse were cutting down in the sagas is actually referring to the vines of Vitis riparia a species of wild grape that grows on trees.

These patterns can be compared and matched ring for ring with trees growing in the same geographical zone and under similar climatic conditions.

These " candles " offer foresters a means to evaluate fertility of the soil and vigour of the trees.

These complex computer programs are encoded in simpler linear chromosomes of fixed length, which are afterwards expressed as expression trees.

These were the first works after Plumier's Genera that used the name Magnolia, this time for some species of flowering trees from temperate North America.

These early techniques have been replaced by newer ones based on mitochondrial DNA sequences and molecular phylogenetics approaches that make use of computational procedures for sequence alignment, construction of phylogenetic trees and calibration of molecular clocks to infer evolutionary relationships.

These fields can be OBVs themselves, forming lists, trees or arbitrary graphs.

These membranes, when outstretched, allow them to glide between trees.

These trees are all over 50 m tall.

These types of disturbances allow Douglas-fir to regenerate in openings, and low-intensity fires often leave Douglas-fir trees standing on drier sites, while less drought-and fire-tolerant species are unable to get established.

These sands cannot support crops, and if the trees are removed erosion is rapid and severe.

These studies further suggest that pollinators may maintain a fidelity to either male or hermaphroditic flowers ( trees ), thus limiting pollination and fruit set under natural conditions where crossing between male and female flowers is required.

These cases are attached to rocks, trees or fences while resting or during their pupa stage, but are otherwise mobile.

" These states of being were " altogether explicable and indefinite " ( like brother and sister ), and it was the fruits of the union of these two entities that created "... the rocks and sands of the earth ; then trees, shrubbery, herbs and grass ; then animals ".

These revenues make it possible to provide essential freight and passenger service over the entire New York Central system as well as the New York area commuter and terminal freight services.

These amendments to the Vocational Rehabilitation Act were designed to help provide for more specialized rehabilitation facilities, for more sheltered and `` half-way '' workshops, for greater numbers of adequately trained personnel, for more comprehensive services to individuals ( particularly to the homebound and the blind ), and for other administrative improvements to increase the program's overall effectiveness.

These machines are designed to provide higher operating speeds, larger yarn packages, and greater flexibility of application to different types of yarn.

These are to be fed at a rate to provide 10 milligrams DES per head daily.

These schools are intended to provide the facilities and specialized curriculum that would not be possible for very small school districts.

These records, when systematically maintained, provide much information about the children, which the teacher can use in guidance, instruction, grouping, and reporting to parents.

These " abbots " are appointed by the brothers and sisters of Redwall to serve as a superior and provide paternal care, much like real abbots.

These include four national forests and one national preserve within state borders that provide over 25 % of the state's public recreation land.

These are collegiate foundations, which provide a home and an income for unmarried ladies, generally of noble birth, called canonesses ( Kanonissinen ) or more usually Stiftsdamen.

These are all used to provide imagery and information to the flight crew.

These numbers provide valuable services to the customers they serve ; it is, therefore, inadvisable to misuse them.

These estimates provide an insight into reasonable directions of search for efficient algorithms.

These drugs stop production of stomach acid and provide longer lasting relief but they do not neutralize any stomach acid already present in the stomach.

These, transaction costs, taxes, and other costs provide an impediment to this kind of arbitrage.

These three categories provide the most compelling evidence that the scribe was generally attentive to his work while he was copying, and that he later subjected his work to careful proofreading.

These laments that are attributed to Jeremiah “ provide a unique look at the prophet's inner struggle with faith, persecution, and human suffering ”.

These unmodified fields are to provide a location to harbor pests.

These bonds, which are stronger than the sp < sup > 3 </ sub > bonds found in alkanes and diamond, provide nanotubes with their unique strength.

These measurements are expected to provide further confirmation of the theory as well as information about cosmic inflation, and the so-called secondary anisotropies, such as the Sunyaev-Zel ' dovich effect and Sachs-Wolfe effect, which are caused by interaction between galaxies and clusters with the cosmic microwave background.

These are intended to ensure basic political, social and economic standards that a nation state, or intergovernmental body is obliged to provide to its citizens but many do include its governments.

These fundamental similarities and differences provide a unifying theme, sometimes allowing the principles learned from studying one cell type to be extrapolated and generalized to other cell types.

These provide some of the earliest evidence for Irish knowledge of Latin.

These are created and managed by individual Perl developers, and provide data feeds to each other in various ad-hoc ways.

These conventions generally provide stronger ties between congregations, including some doctrinal direction and pooling of financial resources.

These observers recommend careful market research to determine if and where the phenomenon can provide measurable benefits for client interactions, sales and support.