Harry V Reynolds

• Gobi Bear Fund, Gobi Bear Project

We report the first survey of ecto- and endoparasites of brown bears (Ursus arctos gobiensis) in the Gobi Desert, Mongolia. We collected 40 ticks from 1 female (21 yr old, 48 kg) and 2 males (10 yr, 155 kg; 5 yr, 108 kg) captured for research purposes in May 2018. We found Dermacentor nutalli (n = 35 ticks, 87.5%) on both male bears and Hyalomma as...

Information about population demography is crucial for developing and implementing conservation measures. The brown bear in the Gobi desert of southwestern Mongolia (referred to as the Gobi bear) is one of the smallest and most isolated brown bear populations in the world. We conducted genetic sampling (n = 2660 samples collected) using hair corral...

We report the first survey of ecto-and endoparasites of brown bears (Ursus arctos gobiensis) in the Gobi Desert, Mongolia. We collected 40 ticks from 1 female (21 yr old, 48 kg) and 2 males (10 yr, 155 kg; 5 yr, 108 kg) captured for research purposes in May 2018. We found Dermacentor nutalli (n = 35 ticks, 87.5%) on both male bears and Hyalomma asi...

Мазаалай баавгай нь Говийн Их Дархан Цаазат Газрын “А” хэсэгт тархацтай бөгөөд маш цөөн тоо толгойтой популяци юм. Түүний тархац нутаг нь Атас Ингэс, Цагаан богд уул, Шар хулсны нуруу гэсэн гурван уулсын системд оршдог. Говийн баавгай төслийн хүрээнд Говийн Их Дархан Цаазат Газрын “А” хэсгээс барьсан 4 толгой мазаалай баавгайн сансрын дохиот хүзүүв...

Knowledge of genetic diversity and population structure is critical for conservation and management planning at the population level within a species’ range. Many brown bear populations in Central Asia are small and geographically isolated, yet their phylogeographic relationships, genetic diversity, and contemporary connectivity are poorly understo...

Mazaalai bear" fund, bayasgalana@gmail.com, 5 Great Gobi "A" Restrictly Protected Area Mazaalai bear's morphometrical data were examined in 2-22 years old total 22 bears (female 6, male 16) measured region of Great Gobi "A" Strictly Protected Area between 2005-2017. Researchers were examined mazaalai bear's morphology before, the measurements were...

Gobi bear (Ursus arctos gobiensis, Sokolov, Orlov, 1992) is endangered and occurs only in isolated populations in the Southwestern part of Mongolia. It is listed in the Red book of Mongolia (1987, 1997, 2013) and is registered in Annex I of the Convention on international trade in endangered species (CITES, 1991). Hunting for the Gobi bear is prohi...

Brown bears (Ursus arctos) inhabit much of the northern hemisphere, including portions of North America, Europe, and Asia. Whereas northern populations generally are healthy, their distribution becomes fragmented and conservation status more tenuous in their southern range. Many fragmented populations across southern Asia are poorly understood, and...

Growth curves were fitted to data on age, length, and spring weight for individuals from three populations of the brown bear, Ursus arctos, in northern Canada and northwest Alaska. Females reached 90% of asymptotic length before sexual maturity and before the age of first production. Their weight remained approximately in proportion to the cube of...

The Gobi Desert in Mongolia, home to the critically endangered Gobi bear (Ursus arctos isabellinus), has few water resources for the animals that inhabit this environment. The majority of these water resources are shallow, small bodies of water, from approximately 30 cm to 3 m in diameter. Due to the harsh nature of the Gobi Desert environment, suc...

Changes in age-specific reproductive rates can have important implications for managing populations, but the number of female brown (grizzly) bears (Ursus arctos) observed in any one study is usually inadequate to quantify such patterns, especially for older females and in hunted areas. We examined patterns of reproductive maturation and senescence...

A population of muskoxen (Ovibos moschatus), successfully restored to northeastern Alaska in the 1970's, has become a source of food for grizzly bears (Ursus arctos). We tested whether grizzly bear predation on this population of muskoxen increased over time and described multiple kills of muskoxen by grizzly bears. We identified bear-muskox events...

A population of muskoxen (Ovibos moschatus), successfully restored to northeastern Alaska in the 1970's, has become a source of food for grizzly bears (Ursus arctos). We tested whether grizzly bear predation on this population of muskoxen increased over time and described multiple kills of muskoxen by grizzly bears. We identified bear-muskox events...

The accuracy of using cementum layers in teeth to reconstruct reproductive histories has been evaluated for black bears (Ursus americamis) but not for brown bears (Ursus arctos). We tested the hypothesis that years when brown bears successfully reared cubs could be identified in teeth by a cementum layer that was thinner than layers in either the p...

Analyses of microsatellite DNA, combined with behavioral observations, indicated that female grizzly bears (Ursus arctos) in the Arctic have a large male gene pool from which to choose. Males from a large surrounding area bred successfully with the females in our study area and competed with males who centered most of their activities in the study...

Fifteen brown bear (Ursus arctos) and three black bear (U. americanus) density estimates were obtained in Alaska during 1985 through 1992 using 2-9 replicates of capture-mark-resight (CMR) techniques in 17 different areas. Radiotelemetry used to document movement of marked animals into and from search areas eliminated the need to correct density es...

We report data from analyses of microsatellite loci of 30 grizzly bear family groups which demonstrate that each cub in a litter can be sired independently, and we derive estimates of maximum reproductive success for males, from an Arctic population in northwestern Alaska that is minimally affected by human activities. These analyses were made poss...

We report data from analyses of microsatellite loci of 30 grizzly bear family groups which demonstrate that each cub in a litter can be sired independently, and we derive estimates of maximum reproductive success for males, from an Arctic population in northwestern Alaska that is minimally affected by human activities. These analyses were made poss...

We extracted DNA from 120 grizzly bears (Ursus arctos horribilis) in an arctic population for paternity analysis using DNA fingerprinting. Preliminary results indicate that a combination of several probes and/or enzymes will be necessary to identify sires of offspring with known mothers. Development of genetic profiles will provide estimates of pop...

We used a distance-based test of independence to measure the association between concurrent distributions of radio-collared grizzly bears (Ursus arctos) and calving caribou (Rangifer tarandus) of the Porcupine caribou herd (PCH) on the Arctic National Wildlife Refuge (ANWR), Alaska. The analysis utilized 552 grizzly bear and 585 caribou radio reloc...

We successfully immobilized 185 grizzly bears (Ursus arctos horribilis) with tiletamine hydrochloride (HCl) and zolazepam HCl during May-June 1986-87. One hundred eighty bears were captured in several areas in Alaska by darting from a helicopter; 5 were immobilized from traps or snares in Banff National Park in Alberta, Canada. Use of the recommend...

We investigated grizzly bear (Ursus arctos) use of caribou (Rangifer tarandus) as carrion and prey in 3 areas: 2 areas were in or adjacent to the traditional calving grounds of large caribou herds, and 1 area that did not include caribou calving grounds. The western Brooks Range study area was located in the mountains and foothills near the calving...

Responses of denning grizzly bears (Ursus arctos) to noise associated with winter seismic surveys and small fixed-wing aircraft were studied on the north slope of Alaska during the years 1978-81. Changes in signal amplitude and collar temperature were monitored in 4 bears denned near seismic lines. Heart rates monitored by implanted transmitters, w...

In arctic Alaska the grizzly bear, Ursus arctos, is at the northern limit of its range; the period of food availability during the summer season is short, re- productive potential is low, and populations may be more susceptible to the pressures of human development and sport hunting than they are in other regions. As one aspect of a cooperative res...

Typescript (carbon copy). Thesis--University of Montana. Includes bibliographical references (leaves 54-56).