p
pa
pb
pc
pd
pe
pf
pg
ph
pi
pk
pl
pm
pn
po
pp
pr
ps
pt
pu
pv
pw
px
py
Перевод: polygyny
[существительное] полигиния ; многоженство [существительное]
Тезаурус:
- This odd reversal of polygyny has been attributed to a very high rate of ground predation whereby clutches are easily lost.
- In North America many marshland bird species show polygyny, a condition in which a male is mated to several females who occupy his territory.
- Among the weaver birds polygyny occurs in territories within a colony but these do not include a foraging area because the birds forage in flocks away from the breeding location.
- The degree of polygyny in deer breeding systems is derived from the sizes of female groups.
- It is not always clear that polygyny is of such reproductive value to females as the views of Orians and his colleagues suggest.
- The existing system seems to be a compromise between a female strategy that would favour monogamy and a male one favouring polygyny (Downhower and Armitage 1971).
- Bringing up the fledglings necessitates a great deal of work in finding food, and polygyny, as we have seen, is possible only when food is exceptionally abundant under r conditions.
- Reproductive strategies involve patterns such as polyandry, monogamy, polygyny, and promiscuity.
- It is quite common for male birds to mate with several females (technically known as polygyny, meaning many females).
- This strange kind of polygyny has accounted for at least nine different hypotheses attempting to explain the birds' bizarre mating system.
- Polygyny occurs in these environments because the short food-rich breeding season is a period of such abundance (r circumstances) that females can rear young by themselves.
- Such a male has a territory so much better than that of neighbours that a "polygyny threshold" is surpassed and he gains a second mate.
- Polyandry and monogamy are thus rather rare among mammals and polygyny the most common reproductive strategy (see Table 3.2).
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