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Articles 1 - 16 of 16
Full-Text Articles in Behavior and Ethology
Social, Spacing, And Cooperative Behavior Of The Collared Peccary, Tayassu Tajacu, John A. Byers, Marc Bekoff
Social, Spacing, And Cooperative Behavior Of The Collared Peccary, Tayassu Tajacu, John A. Byers, Marc Bekoff
Ethology Collection
Social behavior of the collared peccary was studied on the lower, eastern slopes of the Mazatzal Mountains, Arizona. The social unit in this species is a cohesive herd, in which small inter-individual distances are maintained. Two conspicuous acts, one olfactory and one auditory, functioned to maintain close spacing. Social interactions were brief but tended to synchronize the activities of animals and also to bring them closer together. Amicable and neutral actions occurred far more frequently than agonistic interactions. Most agonistic behavior did not involve physical contact. Cooperative nursing, predator defense, and feeding occurred; all adults were tolerant of young, and …
Activity Of Moose And White-Tailed Deer At Mineral Springs, D. Fraser, H. Hristienko
Activity Of Moose And White-Tailed Deer At Mineral Springs, D. Fraser, H. Hristienko
Social Behavior Collection
Activity of moose (Alces alces) and white-tailed deer (Odocoileus virginianus) was studied at two natural mineral springs (licks) in Ontario during the springtime and summer of 1977 to 1980. Most adult moose appeared to use a lick during a single 1- to 5-day period in a year; some returned at intervals during the season; and all seemed drawn principally by the mineral-rich water. Some young moose remained in the lick vicinity for 3 weeks or more, and often wandered in and out of the licks, grazing herbage as well as drinking. This suggested a social as well as a nutritional …
Dynamics, Movements, And Feeding Ecology Of A Newly Protected Wolf Population In Northwestern Minnesota, Steven H. Fritts, L. David Mech
Dynamics, Movements, And Feeding Ecology Of A Newly Protected Wolf Population In Northwestern Minnesota, Steven H. Fritts, L. David Mech
USGS Northern Prairie Wildlife Research Center
The gray wolf Canis lupus occupies only about 1 percent of its former range in the lower 48 states (Mech 1974a). Most of the range is in northern Minnesota, where the resident population is classified as "threatened" by the U.S. Department of the Interior. Wolves have been and will continue to be the subject of considerable controversy in Minnesota.
The first scientific study of wolves in Minnesota was conducted by Olson (1938a,b). That and all subsequent re- search was in the Superior National Forest (SNF) of northeastern Minnesota even though wolves inhabit approximately the northern third of the state. Consequently, …
Radial-Maze Performance In The Rat Following Lesions Of Posterior Neocortex, Melvyn A. Goodale, Robert H.I. Dale
Radial-Maze Performance In The Rat Following Lesions Of Posterior Neocortex, Melvyn A. Goodale, Robert H.I. Dale
Scholarship and Professional Work - LAS
The present experiment was designed to investigate the role of posterior neocortex (areas 17, 18 and 18a) in the maintenance of performance on the radial maze. Following training to criterion on the 8-arm radial maze, rats received either sham operations, bilateral eye enucleations, lesions of posterior neocortex, or combined enucleations and lesions of posterior neocortex. While the enucleated animals with intact brains showed a slight, but significant performance decrement relative to the sham-operated group, the other two groups, with lesions of areas 17, 18 and 18a, each showed a massive deficit. This large deficit was observed even in the group …
Remembrance Of Places Lasts: Proactive Inhibition And Patterns Of Choice In Rat Spatial Memory, William A. Roberts, Robert H.I. Dale
Remembrance Of Places Lasts: Proactive Inhibition And Patterns Of Choice In Rat Spatial Memory, William A. Roberts, Robert H.I. Dale
Scholarship and Professional Work - LAS
A series of experiments was carried out to evaluate the notion that rats given a sequence of massed daily trials on the radial maze reset working memory at the end of each trial by deleting its contents. Although curves presented by D. S. Olton [Scientific American, 1977, 236, 82-98: In S. H. Hulse, H. Fowler, & W. K. Honig (Eds.), Cognitive processes in animal behavior, 1978, Hillsdale, N.J.: Erlbaum] show that rats return to errorless performance at the beginning of each trial after the first, the fact that accuracy falls less rapidly over choices on Trial 1 …
Behavioural Budgeting By Wild Coyotes: The Influence Of Food Resources And Social Organization, Marc Bekoff, Michael C. Wells
Behavioural Budgeting By Wild Coyotes: The Influence Of Food Resources And Social Organization, Marc Bekoff, Michael C. Wells
Ethology Collection
Daytime behavioural budgets of coyotes (Canis latrans) living in the Grand Teton National Park Jackson, Wyoming, were analysed in order to determine how activity patterns ' ere influenced by food resources and social organization. In winter coyotes rested more-and hunted less than in other seasons. Pack-living coyotes rested more and travelled less than resident pairs or solitary resident or transients during winter months when the major food resource was ungulate (predominantly elk, Cervus canadensis) carrion. A mated female living in a pack rested significantly more and travelled significantly less than a mated female living only with her mate (as a …
Deer Social Organization And Wolf Predation In Northeastern Minnesota, Michael E. Nelson, L. David Mech
Deer Social Organization And Wolf Predation In Northeastern Minnesota, Michael E. Nelson, L. David Mech
USGS Northern Prairie Wildlife Research Center
The white-tailed deer Odocoileus virginianus has been subject to intensive research and management, yet we are just beginning to understand its social organization. Little is known about home range formation, migration, social bonds, and traditions in this deer, what functions they serve, and what selective forces have affected them.
Predation by wolves Canis lupus, in particular, has not been examined as a factor in deer evolution, yet the intimate interactions between deer and wolf through the millennia no doubt strongly influenced major morphological and behavioral adaptations in both species. It is a reasonable assumption that wolf predation has been …
An Observational Study Of Coyote (Canis Latrans) Scent-Marking And Territoriality In Yellowstone National Park, Joseph J. Allen, Marc Bekoff, Robert L. Crabtree
An Observational Study Of Coyote (Canis Latrans) Scent-Marking And Territoriality In Yellowstone National Park, Joseph J. Allen, Marc Bekoff, Robert L. Crabtree
Ethology Collection
Free-ranging coyotes (Canis latrans) living in neighboring packs were observed in the Lamar Valley of Yellowstone National Park, Wyoming, from Jan. to May 1997. Through direct observation, we recorded the location of coyote scent marks and information regarding the identity of the marking animal. Patterns of scent-marking were then analyzed spatially and demographically. All of the evidence from the present study supports a strong relationship between scent-marking and territoriality in these coyotes, and all predictions were met. A preponderance of scent marks was found in the periphery of territories. Most of those marks were raised-leg urinations (RLUs) and forward-lean urinations …
An Observational Study Of Scent-Marking In Coyotes, Canis Latrans, Michael C. Wells, Marc Bekoff
An Observational Study Of Scent-Marking In Coyotes, Canis Latrans, Michael C. Wells, Marc Bekoff
Ethology Collection
Urination and defaecation patterns of free-ranging coyotes (Canis latrans) were studied in the Grand Teton National Park, Jackson, Wyoming, for two years. The vast majority of urinations by adult males and females were involved in 'marking,' and differentiating between 'marking' and 'elimination' may not be necessary. Our results may be summarized as follows: 1) Raised-leg urinations (RLU) performed by males were most frequently used in marking. (2) Females marked throughout the year using the squat (SQU) posture. (3) Snow tracking and reading snow sign resulted in a gross underestimate of the relative frequency of SQU's and a large overestimate in …
Equine Behavior Problems In Relation To Humane Management, Katherine A. Houpt
Equine Behavior Problems In Relation To Humane Management, Katherine A. Houpt
Equines Collection
The behavior problems of horses are frequently related to management practices. Behaviors that are termed stall vices appear to be either stereotyped behaviors that occur in reaction to stress, or patterns that emerge when natural behaviors such as grazing are prevented. The behavior cases presented to the New York State College of Veterinary Medicine, Cornell University, were tabulated: 27% were stall vices and 27% were some form of aggression. The stall vices were circling, digging, kicking the stall, chewing wood, swallowing air or self-mutilation. Management of horses on pasture rather than in stalls prevents the development of many of these …
The Buller-Steer Syndrome, Richard Ulbrich
The Buller-Steer Syndrome, Richard Ulbrich
Ethology Collection
Bulling among steers is an abnormal behavioral trait and is a common health and economic problem in feedlot operations. Factors associated with the buller-steer syndrome are hormonal implantation, seasonality and environmental conditions, stress, overcrowding, and social interaction between individuals. Research has examined relationships between these and other factors and buller occurrence. Boredom of feedlot cattle may contribute to buller occurrence and other undesirable behavior more than we might suspect. Research is needed to determine the feasibility of enriching the environment of penned livestock in general, the goal of which would be, in theory, the elimination of undesirable behavior as well …
Spatial Memory And The Performance Of Rats And Pigeons In The Radial-Arm Maze, Alan B. Bond, Robert G. Cook, Marvin R. Lamb
Spatial Memory And The Performance Of Rats And Pigeons In The Radial-Arm Maze, Alan B. Bond, Robert G. Cook, Marvin R. Lamb
Papers in Behavior in Biological Sciences
The resource-distribution hypothesis states that the ability of an animal to remember the spatial location of past events is related to the typical distribution of food resources for the species. It appears to predict that Norway rats would perform better than domestic pigeons in tasks requiring spatial event memory. Pigeons, tested in an eight-arm radial maze, exhibited no more than half of the memory capacity observed in rats in the same apparatus and may not have used spatial memory at all. The results were interpreted as supporting the hypothesis.
Giving-Up As A Poisson Process: The Departure Decision Of The Green Lacewing, Alan B. Bond
Giving-Up As A Poisson Process: The Departure Decision Of The Green Lacewing, Alan B. Bond
Alan Bond Publications
Predators that forage for aggregated prey appear to require a decision rule for determining the point at which to discontinue their search in a given prey patch and move on to another. Although the optimum rule depends heavily on features of the searching behavior of the predator and the distribution of the prey (Oaten 1977), most previous authors have assumed that the decision must involve an assessment of the capture rate within a patch and a comparison with the mean capture rate in the environment as a whole (Krebs 1978). When the perceived quality of the given patch becomes significantly …
Food Habits Of Largemouth Bass, Micropterus Salmoides (Lacepede) And Spotted Bass, Micropterus Punctulatus (Rafinesque), From Beech Fork Reservoir, A New Impoundment In Wayne And Cabell Counties, West Virginia, Michael A. Arcuri
Theses, Dissertations and Capstones
A study was undertaken to determine the food habits of two game fishes, the largemouth bass Micropterus salmoides (Lacepede) and the spotted bass M. punctulatus (Rafinesque) in Beech Fork Reservoir shortly after its impoundment. A total of 171 largemouth bass and 95 spotted bass were collected from July 1978, through June 1979, and their stomach contents analyzed.
Largemouth bass fed primarily on fishes, particularly young-of-the-year bluegill. Aquatic and terrestrial invertebrates were also important food items, especially during the spring and fall . The dominant aquatic forms were chironomid larvae and pupae while the dominant terrestrial forms were adult dipterans.
Spotted …
The Foods And Associated Feeding Behavior Of The Yellow-Bellied Marmot, Marmota Flaviventris, Mark William Jonasson
The Foods And Associated Feeding Behavior Of The Yellow-Bellied Marmot, Marmota Flaviventris, Mark William Jonasson
Theses Digitization Project
No abstract provided.
Abnormal Behavior As An Indication Of Immaterial Suffering, Hans Hinrich Sambraus
Abnormal Behavior As An Indication Of Immaterial Suffering, Hans Hinrich Sambraus
Sentience Collection
Reactive abnormal behavior is the convincing proof of immaterial suffering for the ethologist. We consider abnormal that behavior which does not correspond to, or is without object, which appears with sharply increased or decreased frequency, or which is abnormal in its motor pattern. Moreover, much reactive abnormal behavior manifests itself in stereotypies, i.e., the movement is repeated continuously in the same way. Among wild animals and in traditional forms of animal production abnormal behavior is unknown. However, it is encountered often in animals in intensive husbandry systems, and it can be demonstrated that abnormal behavior is actually brought about by …