Zobrazeno 1 - 10
of 24
pro vyhledávání: '"Richard D. Estes"'
Autor:
Richard D. Estes
This is the first scholarly book on the antelope that dominates the savanna ecosystems of eastern and southern Africa. It presents a synthesis of research conducted over a span of fifty years, mainly on the wildebeest in the Ngorongoro and Serengeti
Autor:
Katerina V. Thompson, Allison Moss Clay, Justin M. Calabrese, Steven L. Monfort, Richard D. Estes
Publikováno v:
Scientific Reports
Scientific Reports, Vol 8, Iss 1, Pp 1-9 (2018)
Scientific Reports, Vol 8, Iss 1, Pp 1-9 (2018)
Tightly synchronized reproduction in vast wildebeest herds underpins the keystone role this iconic species plays in the Serengeti. However, despite decades of study, the proximate synchronizing mechanism remains unknown. Combining a season-long field
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1be8dc669e269ed632029b7a620c1156
https://doi.org/10.1038/s41598-018-28307-y
https://doi.org/10.1038/s41598-018-28307-y
Autor:
Richard D. Estes
Publikováno v:
Zeitschrift für Tierpsychologie. 26:284-370
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::93af5edb22420a90d84f38920be25ba9
https://doi.org/10.1111/j.1439-0310.1969.tb01953.x
https://doi.org/10.1111/j.1439-0310.1969.tb01953.x
Autor:
Richard D. Estes
Publikováno v:
Applied Animal Behaviour Science. 29:403-451
A new model for the evolution of horns in female bovids postulates that females mimic male secondary sexual characters to buffer their male offspring against the aggression of dominant males, thereby prolonging the presence of their sons in the natal
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bb154307325022830239ff04270be3e3
https://doi.org/10.1016/0168-1591(91)90264-x
https://doi.org/10.1016/0168-1591(91)90264-x
Autor:
C. Roland Mote, Richard D. Estes
Publikováno v:
Poultry Science. 61:1956-1961
Disposal of birds that result from normal production mortality is a daily problem for poultry producers. This study investigated heated anaerobic digesters as a means of dead bird disposal. Three concrete septic tanks were used for digesters. During
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a5c1c86320143812fb6a097c3d47c246
https://doi.org/10.3382/ps.0611956
https://doi.org/10.3382/ps.0611956
Autor:
Richard D. Estes
Publikováno v:
African Journal of Ecology. 14:135-152
Summary Unlike most ungulates, whose offspring remain concealed for some time after birth, the offspring of the wildebeest and other alcelaphine antelopes (except harte-beest) accompany the mother from the very first hour. Most other ungulates that h
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e089a47da300ef286b649b76dd161c8e
https://doi.org/10.1111/j.1365-2028.1976.tb00158.x
https://doi.org/10.1111/j.1365-2028.1976.tb00158.x
Publikováno v:
Journal of Mammalogy. 63:618-624
Sebaceous scent glands, located in the upper lip beside the tusks, are reported in two species of suids. A preorbital gland similar to the tusk gland is also described in the warthog. Tusk-gland secretion is employed for scent-marking objects and cou
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a2dfa63ccc292b14e4b0c77447ea0b7c
https://doi.org/10.2307/1380267
https://doi.org/10.2307/1380267
Autor:
Richard D. Estes, Robert Small
Publikováno v:
African Journal of Ecology. 19:175-185
Summary Information on large herbivore populations and movements within the Ngorongoro Crater and surrounding grasslands is taken from the results of thirty-three censuses undertaken between 1964 and 1978. Data show that wildebeest, with an annual av
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6eb9413dbc7a3af5547c0f0f30cab694
https://doi.org/10.1111/j.1365-2028.1981.tb00661.x
https://doi.org/10.1111/j.1365-2028.1981.tb00661.x
Publikováno v:
Transactions of the ASAE. 26:0809-0813
AUTOMATIC dosing siphons are useful for transferring septic tank effluent into filter field distribution systems. Appropriately sized siphons can be assembled from off-the-shelf PVC pipe and fittings. Tests indicated that the relationship between ins
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a57b5d8c41f9c84dc519ef4a7a8dfbed
https://doi.org/10.13031/2013.34028
https://doi.org/10.13031/2013.34028