With such
a limited breeding population, even a small number of deaths from disease can be the difference between the survival of a population or extinction.»
Not exact matches
That finding is profoundly disturbing for wild tigers, given that in most sites where wild tigers persist they are
limited to
populations of less than 25
breeding adults.1
In the new study, Taylor examines how
breeding forest fragmentation relates to the shape and strength of density - dependence or how dwindling resources
limit bird
population.
Traditional methods used to
limit the impact of MSD include insecticides to control leafhopper
populations (which are not affordable to most small - scale farmers and can be environmentally damaging), and conventional selective
breeding of maize for resistance traits that naturally exist in some varieties.
Furthermore, our current knowledge of their global
breeding population is
limited.
The number of
breeding offspring from higher - risk parents should be
limited, so that you avoid the possibility of multiplying a defective gene in the
breeding population.
Nothing is perfect but I fully agree with more controlled and
limited breeding of all cats and dogs by responsible, reputable breeders to reduce the overall
population, spaying and neutering all other dogs and cats and expanding the foster program, and helping some groups to become a sanctuary themselves to help those animals that are harder to adopt have a quality place to stay (following in the footsteps of the Best Friends model) until they are adopted, other programs that train some of these dogs to be therapy dogs, search and rescue dogs, dogs to help the handicapped, police dogs, etc..
But in a country with a tiny
breed population or where the
population has a
limited founder base and a high frequency of the HSF4 mutation, the national clubs in those places may need to develop a multi-generational plan for slowly reducing the frequency of the mutation.
Everyone
breeding to a
limited number of dogs identified as not carrying the defective gene will only
limit diversity, and could propagate other detrimental recessives in the
population.
Elevated risk of elbow dysplasia relative to the mixed -
breed population was also
limited to particular subsets of the purebred
population: herding, sporting, and working AKC groups.
This species is a rare seabird with a world
population of less than 39,000 birds and a very
limited breeding distribution, nesting only on the Channel Islands and on islands off the west coast of Baja California, Mexico.
The range is home to a number of important conservation targets which include, but are not
limited to, at least 2 marine fish spawning aggregation sites, a
breeding population of the endangered American Crocodile, and a number of threatened coastal marine habitats including the greater reef complex itself, beach forests that support several important species of resident and migratory birds and at least 2 species of marine turtles are believed to nest on the range.
While there is an unlimited possibility to the total
population of Cryptokitties that the world is able to create through
breeding, there is a
limited number that are created by the smart contract itself.