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Propagule pressure plays an important role in species invasions (Groom, 2006). Charles Darwin was the first to study specific factors related to invasions of non-native species. In his research he identified that few members of the same genus were present in habitats containing naturalized non-indigenous species (Colautti et al., 2006).
Commission Directive 2006-28-EC of 6 March 2006 amending, for the purposes of their adaptation to technical progress, Council Directive 72-245-EEC of 20 June 1972 relating to the radio interference (electromagnetic compatibility) of vehicles and Council Directive 70-156-EEC on the approximation of the laws of the Member States relating to the type-approval of motor vehicles and their trailers ...
A 2016 study by Kumar et al. [13] chemically analyzed these secretions, concluding that they may be required in chemosensory mediated communication [14] and mate choice. Similarly, in the less aggressive herb-field mouse, males are observed to groom females for longer durations and even allow females to not reciprocate. [ 15 ]
Regarding terminology, from Frederick et al. (2002): We distinguish time discounting from time preference. We use the term time discounting broadly to encompass any reason for caring less about a future consequence, including factors that diminish the expected utility generated by a future consequence, such as uncertainty or changing tastes.
Ex situ research (or off-site research) is also popular among researchers looking to answer questions that are difficult to test in the field. For example, efforts to sequence the genome of the gray mouse lemur will help researchers understand which genetic traits set primates apart from other mammals and will ultimately help understand what ...
The expectancy theory of motivation explains the behavioral process of why individuals choose one behavioral option over the other. This theory explains that individuals can be motivated towards goals if they believe that there is a positive correlation between efforts and performance, the outcome of a favorable performance will result in a desirable reward, a reward from a performance will ...
When preening, a bird (such as this red lory) draws individual feathers through its beak, realigning and re-interlocking the barbules.. Preening is a maintenance behaviour found in birds that involves the use of the beak to position feathers, interlock feather barbules that have become separated, clean plumage, and keep ectoparasites in check.
Graham v. John Deere Co., 383 U.S. 1 (1966), was a case in which the United States Supreme Court clarified the nonobviousness requirement in United States patent law, [1] set forth 14 years earlier in Patent Act of 1952 and codified as 35 U.S.C. § 103.