macropterous造句

• The adult animals are always fully winged ( macropterous ).
• It is 5 mm long and occurs in both the macropterous and brachypterous condition.
• Infact they are fully winged ( macropterous ), with an elongated parallel-sided body.
• Macropterous adults dispersing to a new plant actively avoid plants that are showing symptoms of MMV infection.
• The macropterous individuals have an overall lower fecundity, or fertility, than the long-winged individuals.
• Gerrids produce winged forms for dispersal purposes and macropterous individuals are maintained due to their ability to survive in changing conditions.
• Overwintering gerrids usually are macropterous, or with wings, so they can fly back to their aquatic habitat after winter.
• The macropterous females were shorter in length than the long-winged morphs and therefore do not carry as many eggs.
• The final instar may be the most important in determining whether the insect develops as a brachypterous form or a macropterous form.
• Wing polymorphism is common in the Gerridae despite most univoltine populations being completely apterous ( wingless ) or macropterous ( with wings ).
• Most wing-dimorphic tettigoniids have a brachypterous ( short-winged ) form and a macropterous ( long-winged ) form.
• The second, macropterous, have fully developed wings and emerge when dispersal is required due to high population density or low quality host plants.
• They are both fully winged ( macropterous ) and partially winged ( brachypterous ) . Brachypterous individuals are more common, macropterous forms are mostly males.
• They are both fully winged ( macropterous ) and partially winged ( brachypterous ) . Brachypterous individuals are more common, macropterous forms are mostly males.
• Apterous populations of gerrids would be restricted to stable aquatic habitats that experience little change in environment, while macropterous populations can inhabit more changing, variable water supplies.
• The populations found farther north, at the range borders, have a higher percentage of extra long-winged ( macropterous ) individuals in comparison to populations in range core.
• The dispersal and flight capability of macropterous individuals provides them with an increased chance of finding a new habitat and colonising a new territory, at the cost of reproductive ability.
• In some species of insects, brachyptery occurs in some members ( say in only one sex, or only some castes ), whereas fully functional wings occur in macropterous individuals.
• It is clear that macropterous individuals have a selective advantage due to their capability for sustained flight, allowing them to form new colonies and benefit from habitats that have opened up farther north.
• It has been suggested that production of macropterous forms may be due to juvenile hormone ( JH ) degradation in the final instar, which leads to a shorter period of JH presence within the nymph.