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• 1. [Article] The recreation resources of the Malheur National Wildlife Refuge

  Heavy use of outdoor recreation areas in the United States since World War II is endangering their quality. Demand made by a rapidly growing population with rising personal incomes and increasing leisure ...

  Citation × Citation Citation Abstract Copy Title: The recreation resources of the Malheur National Wildlife Refuge Author: Albrecht, James Conrad Heavy use of outdoor recreation areas in the United States since World War II is endangering their quality. Demand made by a rapidly growing population with rising personal incomes and increasing leisure time is expected to grow 50 percent nationally and 146 percent in Oregon by 1975. In Oregon, population, incomes, and amount of leisure time per person are all increasing more rapidly than nationally. A large influx of out-of-state visitors accelerates the demand. Eighty-five percent of outdoor recreation land in the United States and 95 percent in Oregon is owned by the Federal government. Recreation on Federal land is in general resource-based, that is, it depends upon some natural feature. The role of the Federal government is therefore pre-eminent in developing sites for resource-based recreation activities. Of the agencies involved in meeting the Federal responsibility, the possible role of the Fish and Wildlife Service is least known. Controlling approximately four percent of outdoor recreation land, the 300 refuges had only 13 million of the more than 500 million visitor-days to outdoor recreation areas in 1960. Recreation visits to refuges are increasing rapidly but apparently the quality and quantity of the remarkable wildlife resources of the National Wildlife Refuge System is little understood. As the mission of the Branch of Wildlife Refuges developed, its role involves the provision of habitat for every species of native wildlife somewhere in the System. The refuges are widely distributed over the nation, with the great majority, particularly those for migratory birds, concentrated in the four great flyways. The Service plans ultimately to include within refuge boundaries some 7.5 million acres of the 12 million acres of wetlands needed to maintain present waterfowl populations. Recreation use compatible with wildlife management is permitted on the refuges but development of facilities has been slight. Although express authorization was obtained in 1962 for such development, no funds have since been provided. The Accelerated Public Works Program and the Job Corps Program both provide an avenue for development in some areas. The Malheur National Wildlife Refuge, located in southeastern Oregon, is an excellent example of the recreation potential in the Refuge System. One of the larger refuges, its duck and geese populations number over a million during spring and fall migration. Of Oregon's 425 bird species, 226 have been observed on the Refuge; 141 of them are listed as easily seen during one or more seasons of the year. Deer, antelope, and beaver are also easily seen. The Refuge lies in the basin of the two playas, Malheur and Harney Lakes, and extends for forty miles through the marshes of the Blitzen River toward Steens Mountain, an impressive fault block with alpine vegetation. An excellent museum exhibits indigenous species, photographs, nests, and food plants. A display pool provides an opportunity to observe birds at close hand. Besides wildlife observation and photography, Refuge recreation uses include fishing, water fowl hunting, and an exceptionally high quality annual all deer archery hunt. Camping and picnicking are commonly practiced in conjunction with other recreation activities. Recreation use of the Refuge is limited by inadequate facilities. Campsites are minimally developed and Refuge roads are impassable in wet weather. Authorization for the establishment of a Job Corps Camp on the Refuge in June of 1965 has been obtained and it is expected that Corps projects will serve to alleviate the deficiencies. Development of a significant recreation resource seems assured at a time of growing need. Title: The recreation resources of the Malheur National Wildlife Refuge Author: Albrecht, James Conrad Heavy use of outdoor recreation areas in the United States since World War II is endangering their quality. Demand made by a rapidly growing population with rising personal incomes and increasing leisure time is expected to grow 50 percent nationally and 146 percent in Oregon by 1975. In Oregon, population, incomes, and amount of leisure time per person are all increasing more rapidly than nationally. A large influx of out-of-state visitors accelerates the demand. Eighty-five percent of outdoor recreation land in the United States and 95 percent in Oregon is owned by the Federal government. Recreation on Federal land is in general resource-based, that is, it depends upon some natural feature. The role of the Federal government is therefore pre-eminent in developing sites for resource-based recreation activities. Of the agencies involved in meeting the Federal responsibility, the possible role of the Fish and Wildlife Service is least known. Controlling approximately four percent of outdoor recreation land, the 300 refuges had only 13 million of the more than 500 million visitor-days to outdoor recreation areas in 1960. Recreation visits to refuges are increasing rapidly but apparently the quality and quantity of the remarkable wildlife resources of the National Wildlife Refuge System is little understood. As the mission of the Branch of Wildlife Refuges developed, its role involves the provision of habitat for every species of native wildlife somewhere in the System. The refuges are widely distributed over the nation, with the great majority, particularly those for migratory birds, concentrated in the four great flyways. The Service plans ultimately to include within refuge boundaries some 7.5 million acres of the 12 million acres of wetlands needed to maintain present waterfowl populations. Recreation use compatible with wildlife management is permitted on the refuges but development of facilities has been slight. Although express authorization was obtained in 1962 for such development, no funds have since been provided. The Accelerated Public Works Program and the Job Corps Program both provide an avenue for development in some areas. The Malheur National Wildlife Refuge, located in southeastern Oregon, is an excellent example of the recreation potential in the Refuge System. One of the larger refuges, its duck and geese populations number over a million during spring and fall migration. Of Oregon's 425 bird species, 226 have been observed on the Refuge; 141 of them are listed as easily seen during one or more seasons of the year. Deer, antelope, and beaver are also easily seen. The Refuge lies in the basin of the two playas, Malheur and Harney Lakes, and extends for forty miles through the marshes of the Blitzen River toward Steens Mountain, an impressive fault block with alpine vegetation. An excellent museum exhibits indigenous species, photographs, nests, and food plants. A display pool provides an opportunity to observe birds at close hand. Besides wildlife observation and photography, Refuge recreation uses include fishing, water fowl hunting, and an exceptionally high quality annual all deer archery hunt. Camping and picnicking are commonly practiced in conjunction with other recreation activities. Recreation use of the Refuge is limited by inadequate facilities. Campsites are minimally developed and Refuge roads are impassable in wet weather. Authorization for the establishment of a Job Corps Camp on the Refuge in June of 1965 has been obtained and it is expected that Corps projects will serve to alleviate the deficiencies. Development of a significant recreation resource seems assured at a time of growing need. Close

• 2. [Article] Influence of Wetland Landscape Structure on Duck Nest Success at Malheur National Wildlife Refuge, Oregon

  The decline of waterfowl populations and their requisite wetland habitats remains a concern. Because migratory bird refuges are often artificial landscapes of actively managed wetlands, and wildlife populations ...

  Citation × Citation Citation Abstract Copy Title: Influence of Wetland Landscape Structure on Duck Nest Success at Malheur National Wildlife Refuge, Oregon Author: Craver, Daniel Robert Year: 2010 The decline of waterfowl populations and their requisite wetland habitats remains a concern. Because migratory bird refuges are often artificial landscapes of actively managed wetlands, and wildlife populations experience their greatest change during the breeding season, refuges should be designed to maximize breeding habitat. While past nest success studies have focused on at-nest variables, new approaches are needed to evaluate the effect of composition and configuration of plant communities at the landscape scale. This study aims to quantify landscape patterns within individual refuge management units to determine influence upon historical nesting success averages of ducks at Malheur National Wildlife Refuge in southeastern Oregon. The Mayfield estimate of nest success for 8 duck species yields a survival rate of 25% for the years 1987-1998 with a range of 0-74% across 48 management units. FRAGSTATS was used to calculate a suite of 9 landscape pattern metrics per unit at the class-level for each of 3 wetland habitat classes, and at the landscape-level using all habitat types. These 36 variables were tested for association with survival rate using Pearson R correlation. Results suggest fragmentation of dry meadow habitat; patch size, complexity, and extensiveness of wet meadow habitat; and diversity of habitats across the landscape positively influence duck nest success at the scale of the individual management unit. Title: Influence of Wetland Landscape Structure on Duck Nest Success at Malheur National Wildlife Refuge, Oregon Author: Craver, Daniel Robert Year: 2010 The decline of waterfowl populations and their requisite wetland habitats remains a concern. Because migratory bird refuges are often artificial landscapes of actively managed wetlands, and wildlife populations experience their greatest change during the breeding season, refuges should be designed to maximize breeding habitat. While past nest success studies have focused on at-nest variables, new approaches are needed to evaluate the effect of composition and configuration of plant communities at the landscape scale. This study aims to quantify landscape patterns within individual refuge management units to determine influence upon historical nesting success averages of ducks at Malheur National Wildlife Refuge in southeastern Oregon. The Mayfield estimate of nest success for 8 duck species yields a survival rate of 25% for the years 1987-1998 with a range of 0-74% across 48 management units. FRAGSTATS was used to calculate a suite of 9 landscape pattern metrics per unit at the class-level for each of 3 wetland habitat classes, and at the landscape-level using all habitat types. These 36 variables were tested for association with survival rate using Pearson R correlation. Results suggest fragmentation of dry meadow habitat; patch size, complexity, and extensiveness of wet meadow habitat; and diversity of habitats across the landscape positively influence duck nest success at the scale of the individual management unit. Close

• 3. [Article] Aspects of the ecology of the common raven in Harney Basin, Oregon

  Common Ravens (Corvus corax L.) have been implicated as significant predators on the eggs of waterfowl and shorebirds on Malheur National Wildlife Refuge. Malheur Refuge, located in southeastern Oregon ...

  Citation × Citation Citation Abstract Copy Title: Aspects of the ecology of the common raven in Harney Basin, Oregon Author: Stiehl, Richard B. Year: 1978 Common Ravens (Corvus corax L.) have been implicated as significant predators on the eggs of waterfowl and shorebirds on Malheur National Wildlife Refuge. Malheur Refuge, located in southeastern Oregon on the northern edge of the Great Basin, is one of the largest waterfowl refuges in the United States and is an important breeding area for waterfowl. In order to provide fundamental information on which a sound raven management plan could be based, research was conducted from 1975-1977 on aspects of population density, brood phenology, nesting success, seasonal use of the study area, roosting behavior, and food habits of ravens on and near the refuge. Nesting density was determined to be one pair per approximately 25 km2 . Most nests occurred in rimrocks, but trees and abandoned human structures were also used. Investigation of 87 nests revealed that the incubation period was 21 + 1 days. Incubation began with the laying of the first egg; hatching was asynchronous. Nesting period was 41 + 3 days. An original method of age-classing ravens is described. A total of 266 ravens was marked with patagial tags. Observation of marked individuals as far as 480 km from the study area suggests considerable mobility in the population. Population numbers vary seasonally, peaking in the winter. The Harney Basin is the location of an exceptionally large winter roost for ravens. Analysis of food remains, collected from 34 nests, indicates that ravens have varied diets and that there are significant differences in the diets of ravens nesting in different habitats. A correlation exists between the proportion of the diet that is avian material and the proximity of the raven nest to waterfowl production areas. Based on these findings, suggestions are offered for a management plan for Common Ravens on Malheur National Wildlife Refuge. Title: Aspects of the ecology of the common raven in Harney Basin, Oregon Author: Stiehl, Richard B. Year: 1978 Common Ravens (Corvus corax L.) have been implicated as significant predators on the eggs of waterfowl and shorebirds on Malheur National Wildlife Refuge. Malheur Refuge, located in southeastern Oregon on the northern edge of the Great Basin, is one of the largest waterfowl refuges in the United States and is an important breeding area for waterfowl. In order to provide fundamental information on which a sound raven management plan could be based, research was conducted from 1975-1977 on aspects of population density, brood phenology, nesting success, seasonal use of the study area, roosting behavior, and food habits of ravens on and near the refuge. Nesting density was determined to be one pair per approximately 25 km2 . Most nests occurred in rimrocks, but trees and abandoned human structures were also used. Investigation of 87 nests revealed that the incubation period was 21 + 1 days. Incubation began with the laying of the first egg; hatching was asynchronous. Nesting period was 41 + 3 days. An original method of age-classing ravens is described. A total of 266 ravens was marked with patagial tags. Observation of marked individuals as far as 480 km from the study area suggests considerable mobility in the population. Population numbers vary seasonally, peaking in the winter. The Harney Basin is the location of an exceptionally large winter roost for ravens. Analysis of food remains, collected from 34 nests, indicates that ravens have varied diets and that there are significant differences in the diets of ravens nesting in different habitats. A correlation exists between the proportion of the diet that is avian material and the proximity of the raven nest to waterfowl production areas. Based on these findings, suggestions are offered for a management plan for Common Ravens on Malheur National Wildlife Refuge. Close

• 4. [Article] Avian Affairs: A Study of the Occurrence and Benefits of Extra-pair Breeding Behavior in Eastern Kingbirds (Tyrannus Tyrannus)

  Over three consecutive breeding seasons I examined the breeding system of Eastern Kingbirds in Malheur National Wildlife Refuge in SE, Oregon. To assess genetic paternity, I optimized seven microsatellite ...

  Citation × Citation Citation Abstract Copy Title: Avian Affairs: A Study of the Occurrence and Benefits of Extra-pair Breeding Behavior in Eastern Kingbirds (Tyrannus Tyrannus) Author: Dolan, Amy Catherine Year: 2006 Over three consecutive breeding seasons I examined the breeding system of Eastern Kingbirds in Malheur National Wildlife Refuge in SE, Oregon. To assess genetic paternity, I optimized seven microsatellite markers and determined that extra pair paternity was common. Extra-pair young were present in approximately 60% of nests, representing 47% of young. I examined implications of extra-pair paternity from three perspectives. First, I examined the impact of extra-pair paternity on the opportunity for sexual selection within a socially monogamous system and identified correlates of male reproductive success. Some males were successful at the expense of others, and 24% of males did not sire any young. Thus, variance in male reproductive success was more than nine times greater than female variance, indicating that sexual selection operates strongly in this system. Extra-pair success was positively related to tarsus length and inversely dependent upon dawn song start time. Within-pair success was positively related to nest defense intensity during the incubation period. Second, I assessed the four genetic hypotheses proposed to explain female cooperation in extra-pair copulations. Extra-pair young were not distributed randomly among broods. Cuckolded within-pair males were not more closely related to females than were extra-pair sires. Pair wise comparisons indicated males with specific song and morphological traits were chosen as sires. Brood success (proportion of brood to fledge and recruit) was unrelated to thenumber of males who sired young in the brood. Extra-pair young were larger and heavier than their within-pair half-siblings. These results unambiguously support the 'good genes' hypothesis of female extra-pair mating. Last, I examined the influence of breeding date and parental condition (mother, social father and genetic sire) on offspring sex ratio. Given that male variance in reproductive success is much greater than that of females, I predicted the characters of genetic sires would be the most important factor influencing offspring sex ratio. Contrary to my prediction, male traits did not influence offspring sex ratio. However, more males hatched early in the season and females in better condition produced more sons. I also found that male nestling survival to the next breeding season was inversely related to date. Title: Avian Affairs: A Study of the Occurrence and Benefits of Extra-pair Breeding Behavior in Eastern Kingbirds (Tyrannus Tyrannus) Author: Dolan, Amy Catherine Year: 2006 Over three consecutive breeding seasons I examined the breeding system of Eastern Kingbirds in Malheur National Wildlife Refuge in SE, Oregon. To assess genetic paternity, I optimized seven microsatellite markers and determined that extra pair paternity was common. Extra-pair young were present in approximately 60% of nests, representing 47% of young. I examined implications of extra-pair paternity from three perspectives. First, I examined the impact of extra-pair paternity on the opportunity for sexual selection within a socially monogamous system and identified correlates of male reproductive success. Some males were successful at the expense of others, and 24% of males did not sire any young. Thus, variance in male reproductive success was more than nine times greater than female variance, indicating that sexual selection operates strongly in this system. Extra-pair success was positively related to tarsus length and inversely dependent upon dawn song start time. Within-pair success was positively related to nest defense intensity during the incubation period. Second, I assessed the four genetic hypotheses proposed to explain female cooperation in extra-pair copulations. Extra-pair young were not distributed randomly among broods. Cuckolded within-pair males were not more closely related to females than were extra-pair sires. Pair wise comparisons indicated males with specific song and morphological traits were chosen as sires. Brood success (proportion of brood to fledge and recruit) was unrelated to thenumber of males who sired young in the brood. Extra-pair young were larger and heavier than their within-pair half-siblings. These results unambiguously support the 'good genes' hypothesis of female extra-pair mating. Last, I examined the influence of breeding date and parental condition (mother, social father and genetic sire) on offspring sex ratio. Given that male variance in reproductive success is much greater than that of females, I predicted the characters of genetic sires would be the most important factor influencing offspring sex ratio. Contrary to my prediction, male traits did not influence offspring sex ratio. However, more males hatched early in the season and females in better condition produced more sons. I also found that male nestling survival to the next breeding season was inversely related to date. Close

• 5. [Article] Determination of the value to planners of incorporating ecotourist needs data in the interpretive planning process

  The purpose of this study was to answer the following question: What was the perceived value to planners of incorporating information from ecotourists about their perceived needs in the standard system ...

  Citation × Citation Citation Abstract Copy Title: Determination of the value to planners of incorporating ecotourist needs data in the interpretive planning process Author: Masberg, Barbara Ann The purpose of this study was to answer the following question: What was the perceived value to planners of incorporating information from ecotourists about their perceived needs in the standard system presently being used to plan interpretation? The Ecotourist Needs Assessment (ETNA) process was proposed as an external needs assessment. To exemplify this process, an instrument called Ecotourist Needs Assessment Instrument (ETNAI) was developed to collect input from ecotourists who visited the Malheur National Wildlife Refuge. A case resulted from the process. The ETNAI case was used to obtain planners' opinions about whether ETNA had value in the context of data collection and inventory in interpretive planning. The ETNAI case included developing and validating the ETNAI and providing a procedure for implementing ETNAI. Upon completion of the ETNAI case, an interview guide was developed and administered to interpretive planners. Interpretive planners were asked how they currently plan interpretation and collect information to decide interpretive topics. Other questions dealt with their feelings regarding the usefulness of the ETNA and the data collected using the ETNA. The interpretive planners described the current system and provided information about the proposed system (ETNA). Currently, decisions involving interpretation are based on three factors: 1) money, 2) mandates/missions, and/or 3) management. The interpretive planner chose outside (external) groups except during a master planning process when the general public provided input. The outside groups included: professionals, the public, and recreation providers. The current methods used to collect information were informal or considered casual. When contrasted with the proposed method, the interpretive planners felt the ETNA had value. This was reflected in their suggestions for use: As an evaluation tool after an interpretive program is given to a specific audience. As a method to assess the interpretive needs of visitors and specific audiences for interpretation. As a technique to access visitors and the public, both general and specific. As a mechanism to collect data at public meetings. As a systematic routine to develop interpretation, to provide feedback for further development, and to evaluate interpretation embedded in the site system. As a method to effectively determine the distribution of funds. Title: Determination of the value to planners of incorporating ecotourist needs data in the interpretive planning process Author: Masberg, Barbara Ann The purpose of this study was to answer the following question: What was the perceived value to planners of incorporating information from ecotourists about their perceived needs in the standard system presently being used to plan interpretation? The Ecotourist Needs Assessment (ETNA) process was proposed as an external needs assessment. To exemplify this process, an instrument called Ecotourist Needs Assessment Instrument (ETNAI) was developed to collect input from ecotourists who visited the Malheur National Wildlife Refuge. A case resulted from the process. The ETNAI case was used to obtain planners' opinions about whether ETNA had value in the context of data collection and inventory in interpretive planning. The ETNAI case included developing and validating the ETNAI and providing a procedure for implementing ETNAI. Upon completion of the ETNAI case, an interview guide was developed and administered to interpretive planners. Interpretive planners were asked how they currently plan interpretation and collect information to decide interpretive topics. Other questions dealt with their feelings regarding the usefulness of the ETNA and the data collected using the ETNA. The interpretive planners described the current system and provided information about the proposed system (ETNA). Currently, decisions involving interpretation are based on three factors: 1) money, 2) mandates/missions, and/or 3) management. The interpretive planner chose outside (external) groups except during a master planning process when the general public provided input. The outside groups included: professionals, the public, and recreation providers. The current methods used to collect information were informal or considered casual. When contrasted with the proposed method, the interpretive planners felt the ETNA had value. This was reflected in their suggestions for use: As an evaluation tool after an interpretive program is given to a specific audience. As a method to assess the interpretive needs of visitors and specific audiences for interpretation. As a technique to access visitors and the public, both general and specific. As a mechanism to collect data at public meetings. As a systematic routine to develop interpretation, to provide feedback for further development, and to evaluate interpretation embedded in the site system. As a method to effectively determine the distribution of funds. Close