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A mating pair required a very large area of untouched mature forest to survive, approximately ; outside the breeding season, the birds apparently formed small groups of a handful to a dozen individuals and moved about a wider area, apparently in response to availability of food ( Lammertink et al., 1996 ).
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mating and pair
Male fairy shrimp have an enlarged pair of antennae with which they grasp the female during mating, while the bottom-feeding Notostraca, the antennae are reduced to vestiges.
If breeding hamsters, separation of the pair after mating is recommended, or they will attack each other.
A mating pair or a lone individual will spend the day hiding from predators, particularly birds.
The last 2 descendants of Prune, a brother-sister pair, were sent to Holland in the 1970s, but the male was uninterested in mating and the female conceived only once, but lost the litter.
* One of a pair of animals involved in mating
The Magdeburg hemispheres are a pair of large copper hemispheres with mating rims, used to demonstrate the power of atmospheric pressure.
When they pair off with mating partners, often one or several drakes end up " left out ".
After mating, the pair will return to their solitary habits.
A tap is used to cut the female portion of the mating pair ( e. g., a nut ).
A die is used to cut the male portion of the mating pair ( e. g., a screw ).
One of the tree-villages is defending the territory of an active Spotted Owl mating pair.
A mating pair will court several times during breeding periods to strengthen their bond.
Group spawning and pair spawning occur within mating systems.
Even in aviary studies in which a female Goldcrest was given an artificial eyestripe to facilitate mating with a male Firecrest, the chicks were never raised by the mixed pair, and appeared to be poorly adapted compared to the parent species.
Even in aviary studies in which a female Goldcrest was given an artificial eyestripe to facilitate mating with a male Firecrest, the chicks were never raised by the mixed pair, and appeared to be poorly adapted compared to the parent species.
While a mating pair composed of two castes may produce offspring together, the offspring are usually sterile, as with the Mediators.
File: Nembrotha millleri mating. jpg | A pair of Nembrotha milleri mating at Verde Island, the Philippines.
If the nest is destroyed or a mating pair produces a failed brood, an attempt to re-nest may occur but this ultimately depends on when the brood fails.
When these behaviors are noticed, a mating pair should be provided with a sturdy wicker nest about the size of a large apple or orange.
The art is also exceptional for its time for including " scenes ," e. g., animals interacting with each other ; a pair of wooly rhinoceroses, for instance, are seen butting horns in an apparent contest for territory or mating rights.
A male and female macaque will form a pair bond and mate, feed, rest and travel together, and this typically lasts 1. 6 days on average during the mating season.
The term " primary helper " being used for the commoner case of the helper being offspring of the pair and not involved in mating.
While reports on many such mating scenarios are still only anecdotal, a growing body of scientific work confirms that permanent homosexuality occurs not only in species with permanent pair bonds, but also in non-monogamous species like sheep.
mating and required
* Klepton, a phenomenon known in zoology where mating with another taxon is required to complete reproduction
In yeast, Sir2 is required for genomic silencing at three loci: The yeast mating loci, the telomeres and the ribosomal DNA ( rDNA ).
For example, in the ferret ( Mustela putorius furo ), it is caused by estrogen toxicity, because female ferrets are induced ovulators, so mating is required to bring the female out of heat.
Fission yeast uses intrinsic asymmetry of the DNA replication process to switch the mating type ; it was the first system, where the direction of replication was shown to be required for the change of the cell type.
The joints also required to be lubricated, and wear at the fishplate ( joint bar ) mating surfaces needed to be rectified by shimming.
The crew's preparation for the mission had begun some thirteen months earlier in 1994, with the crew being trained in the operation of the space shuttle, the mating and docking procedures that would be required as Atlantis approached Mir later in the mission, and the management of the various scientific experiments being carried on the orbiter during the mission.
P. ramorum is heterothallic and has two mating types A1 and A2 required for sexual reproduction.
Encapsulation of the launcher-payload interface takes away the prohibitive amount of managerial work that would previously be required for mating a piggyback satellite with its launcher.
Furthermore, assortative mating may be required for sympatric speciation, meaning the evolution of a new species without geographic isolation.
This may be required where a surface needs to be trued, corrected for fit to a mating part, needs to retain oil ( usually on a freshly ground surface ), or even to give a decorative finish.
The mechanism by which mating disruption affects males is poorly understood ; it may increase the time required for males to find females, thus reducing fecundity, or it may simply mask the position of females to searching males, reducing mating substantially.
mating and very
Courtship and mating are very brief, lasting only 30 to 40 seconds.
Males make mating calls to attract females, sounding very much like a cricket calling underwater.
Furthermore, stochastic effects of sampling that occurs during mating may change allele frequencies in a way that is very similar to the effect of null alleles ; an excessive frequency of homozygotes causing deviations from Hardy-Weinberg equilibrium expectations.
Since null alleles are a technical problem and sampling effects that occur during mating are a real biological property of a population, it is often very important to distinguish between them if excess homozygotes are observed.
Following mating, the male becomes very aggressive and protective of the female, providing her with food during her pregnancy and lactation periods.
Female adults attach to larger hosts, feed, and lay eggs, while males feed very little and occupy larger hosts primarily for mating.
PTFE is a very soft material, thus its friction coefficient becomes worse than that of hardened steel-to-steel mating surfaces under common loads.
The mating is very brief with the male flapping his wings to maintain balance on top of the female.
It is thought that mating is promiscuous, quite possibly on a lek system like that of the Kakapo ( a very large, flightless parrot found only in New Zealand ), but this remains uncertain.
It is also very gregarious and has a seasonal, promiscuous mating pattern.
There are two very different mating systems that appear to be common in carpenter bees, and often this can be determined simply by examining specimens of the males of any given species.
In the other type of mating system, the males often have very small heads, but there is a large, hypertrophied glandular reservoir in the mesosoma, which releases pheromones into the airstream behind the male while it flies or hovers.
According to Fine, a material advantage will usually not give a direct mating attack unless the advantage is very large ( a rook or more ), rather it can be used as a means of gaining more material and a decisive endgame advantage.
The males begin to chase females around, rubbing their sides against them, and this becomes very frenzied and aggressive towards the mating.
Natterjacks have a very loud and distinctive mating call, amplified by the single vocal sac found under the chin of the male animal.
This douc has been rarely observed in the wild and very little is known about its wild mating and breeding habits.
The " good sperm hypothesis " is very common in polyandrous mating systems.
Males tend to become very aggressive towards other males during mating seasons.
The mating call of the male sounds like a dog's bark and will be very light to hear.
It is very sociable and normally travels in large, noisy parties except during the mating season.
Consequently, if the genes for wing pattern and color were normal functioning genes, a single mating would produce several phenyotypically different offspring, making the ability for mimicry to evolve very difficult.
This species has a very unusual and distinctive mating method, where the pair of slugs use a thick thread of mucus to hang suspended in the air from a tree branch or other structure.
The repeated pattern is sexual reproduction in isogamous species with two or more mating types with gametes of identical form and behavior ( but different at the molecular level ) to anisogamous species with gametes of male and female types to oogamous species in which the female gamete is very much larger than the male and has no ability to move.
Grunion are known for their unusual mating ritual whereby at very high tides the females come up on to sandy beaches where they dig their tails into the sand to lay their eggs.
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