Zobrazeno 1 - 10
of 21
pro vyhledávání: '"L. E. M. de Boer"'
Autor:
L. E. M. De Boer
Publikováno v:
International Zoo Yearbook. 44:246-250
Apenheul Primate Park in the Netherlands has calculated annual CO2 emissions from internal activities (e.g. heating, lighting, food preparation) and emissions caused by the fossil-fuel cars the visitors use to and from the Park. Cars caused c. 77% of
Publikováno v:
CYTOLOGIA. 58:403-416
The phylogeny of 33 owl species is studied karyologically. Karyotypes of seven owl species new to karyology (Bubo lacteus, Ketupa blakistoni, K. ketupa, Otus scops, Strix hylophila, S. leptogrammica and S. nebulosa) are described. Four other karyotyp
Autor:
R. H. R. Belterman, L. E. M. De Boer
Publikováno v:
Genetica. 83:17-29
In the framework of a project on bird sexing for zoos, orcein stained karyotypes were studied of 16 species belonging to 7 avian orders, viz.Tinamus solitarius (Tinamiformes),Scopus umbretta, Jabiru mycteria, Mycteria cinerea, Ciconia (=Dissoura) (ep
Autor:
L. E. M. de Boer, M. de Bruijn
Publikováno v:
Zoo Biology. 9:307-316
The two subspecies of the black spider monkey, Ateles paniscus paniscus and A. p. chamek, can be distinguished by their chromosome number, 2n = 32 in the former and 2n = 34 in the latter. This difference most probably is the result of a tandem fusion
Autor:
L. E. M. de Boer
Publikováno v:
Creative Conservation ISBN: 9789401043113
There are some early examples of the potential of captive breeding in zoos for preventing extinction of highly endangered species. Species such as Przewalski’s horse (Equus przewalskii), Pere David’s deer (Elaphurus davidianus), Hawaiian goose (B
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0b23740823591f65033dc3137d111531
https://doi.org/10.1007/978-94-011-0721-1_15
https://doi.org/10.1007/978-94-011-0721-1_15
Publikováno v:
American Journal of Primatology. 4:165-169
The G- and Q-bands and the location of the nucleolar organizer regions (NOR) in the chromosomes of Presbytis obscurus and the Q- and C-bands of P. cristatus pyrrhus are described. Their chromosomes are compared to those of Macaca mulatta and to other
Autor:
L. E. M. De Boer, R. H. R. Belterman
Publikováno v:
Genetica. 54:225-232
Autor:
L. E. M. De Boer, R. P. Sinoo
Publikováno v:
Genetica. 65:89-107
Karyotypic descriptions are given of 16 species of Accipitridae new to cytology, viz. Accipiter novaehollandiae, Aegypius monachus, Aquila rapax, Circaetus gallicus, Circus aeruginosus, C. cyaneus, C. pygargus, Geranoaetus melanoleucos, Gyps bengalen
Autor:
L. E. M. De Boer, M. T. Frankenhuis, T. A. G. De Groen, R. H. R. Belterman, J. Sallevelt, A. J. Zonneveld
Publikováno v:
Genetica. 65:83-87
The frequency of triploidy was studied in early chicken embryos and hatchlings and in adult chickens which showed symptoms of intersexuality at an early age. The incidence of triploid embryos in the strain involved was not very high (0.6%), but it ap
Autor:
R. H. R. Belterman, L. E. M. De Boer
Publikováno v:
Genetica. 65:39-82
The karyotypes of 39 avian species new to cytology are described, viz. Pelecanus crispus, P. occidentalis and Morus bassanus (Pelecaniformes), Ardea goliath, Ciconia episcopus and Leptoptilos javanicus (Ciconiiformes), Anas castanea, Anseranas semipa