scholarly journals Trends in mammalian predator control trapping events intended to protect ground-nesting, endangered birds at Haleakalā National Park, Hawaiʻi: 2000–14

2019 ◽  
Author(s):  
Emily C. Kelsey ◽  
Josh Adams ◽  
Max F. Czapanskiy ◽  
Jonathan J. Felis ◽  
Julie L. Yee ◽  
...  
Keyword(s):  
National Park ◽  
Predator Control ◽  
Mammalian Predator ◽  
Ground Nesting

scholarly journals Changes in breeding success and abundance of ground-nesting moorland birds in relation to the experimental deployment of legal predator control

2010 ◽  
Vol 47 (2) ◽  
pp. 263-272 ◽  
Author(s):  
Kathy Fletcher ◽  
Nicholas J. Aebischer ◽  
David Baines ◽  
Robin Foster ◽  
Andrew N. Hoodless
Keyword(s):  
Breeding Success ◽  
Predator Control ◽  
Ground Nesting

scholarly journals Towards an adaptive management approach for the conservation of rare antelope in the Kruger National Park - outcome of a workshop held in May 2000

Koedoe ◽  
2000 ◽  
Vol 43 (2) ◽  
Author(s):  
C.C. Grant ◽  
J.L. Van der Walt
Keyword(s):  
Adaptive Management ◽  
National Park ◽  
High Density ◽  
Kruger National Park ◽  
Management Tool ◽  
Management Approach ◽  
Predator Control ◽  
Viable Option ◽  
Equus Burchelli ◽  
The Subject

A precipitous drop in rare antelope numbers specifically roan (<i>Hippotragus equinis</i>) sable (<i>Hippotragus niger</i>) and tsessebe (<i>Damaliscus lunatus</i>) since 1986 has become one of the main concerns of management. The zebra (<i>Equus burchelli</i>) population in the preferred habitats of these species had increased with the development of artificial waterpoints especially in the areas occupied by roan and tsessebe, and these events are hypothesised to be the main cause of the decline. Closure of artificial waterpoints resulted in moving the high-density, water-dependent zebra from the northern basalt plains, the preferred roan habitat. However, the expected responding increase in the rare antelope populations did not materialise. This lack of response over six years necessitated a critical re-evaluation of the management of rare antelope in the Kruger National Park. Subsequently, a workshop was held at Skukuza during May 2000. The options for adaptive management of the declining rare antelope populations, which was discussed at the workshop, is the subject of this manuscript. The participants felt that the removal/closure of artificial waterpoints was the most unintrusive management tool available to move high density grazers from the habitats preferred by rare antelope. Waterpoints to be closed should be carefully evaluated, and time allowed for rare antelope to respond to habitat changes. Boosting populations of roan and tsessebe by supplementing animals was seriously considered, with the proviso that it should be done under favourable circumstances. Small patch fires that could provide green grazing over extended periods were recommended. Predator control was discussed but could not obtain general support as a viable option in the Kruger National Park.

Reintroduction methods and a review of mortality in the brush-tailed rock-wallaby, Grampians National Park, Australia

2015 ◽  
Vol 63 (6) ◽  
pp. 383 ◽  
Author(s):  
D. A. Taggart ◽  
D. J. Schultz ◽  
T. C. Corrigan ◽  
T. J. Schultz ◽  
M. Stevens ◽  
...  
Keyword(s):  
Survival Time ◽  
Predation Risk ◽  
National Park ◽  
Landscape Scale ◽  
Control Measures ◽  
Predator Control ◽  
Independent Variables ◽  
Risk Of Death ◽  
Release Strategy ◽  
Main Factor

Captive-bred brush-tailed rock-wallabies (BTRW) were reintroduced into the Grampians National Park, Australia, during 2008–12. Two release strategies (methods) were examined: ‘Small release with supplementation’ (Strategy 1) and ‘Larger release, no supplementation’ (Strategy 2). Of the 39 animals released, 18% survived. Thirty-six percent of all mortality occurred within the first 100 days. Under Strategy 1, 22 animals were released in five groups. Twenty deaths occurred across 48 months, with predation estimated to account for 15% of mortalities. Under Strategy 2, 17 individuals were reintroduced across one month. Twelve deaths occurred in the five months following release, with predation estimated to account for 83.4% of mortalities. Of the independent variables tested for their relationship to survival time after release, release strategy was the only significant predictor of survival time after release with the risk of death 3.2 times greater in Strategy 2. Independent variables tested for their relationship to predation risk indicated that release strategy was also the only significant predictor of predation risk, with the risk of death associated with predation 10.5 times greater in Strategy 2. Data suggested that fox predation was the main factor affecting BTRW establishment. Predation risk declined by 75% during the first six months after release. A significant positive relationship was also found between predation risk and colony supplementation events. We conclude that predation risk at Moora Moora Creek is reduced in releases of fewer animals, that it declines across time and that disturbing BTRW colonies through the introduction of new animals can increase predation risk. We recommend that future reintroductions should employ diverse exotic predator control measures at the landscape scale, time releases to periods of lowest predator activity, and limit colony disturbance to maintain group cohesion and social structure. Furthermore, the preferred method of population establishment should be single, small releases over multiple sites without supplementation. Further testing of the reintroduction biology of this species is urgently required.

scholarly journals The Mammalian Predator Community of Wind Cave National Park

1989 ◽  
Vol 13 ◽  
pp. 164-166
Author(s):  
Robert Taylor
Keyword(s):  
Species Composition ◽  
National Park ◽  
Ecological Factors ◽  
Black Hills ◽  
Mammalian Predator ◽  
Animal Community ◽  
Predator Community

This research has been targeted at describing the species composition of mammalian carnivores inhabiting Wind Cave National Park and at discovering the ecological factors structuring that subset of the animal community. Descriptive studies in 1988 indicated that the community is atypically simple for the Black Hills, and is dominated by coyotes. The objectives in 1989 were to compare Wind Cave to comparable areas outside the park and to discover the causes underlying the community's form within the park.

scholarly journals Non-native Mammalian Predator Control to Benefit Endangered Hawaiian Waterbirds

2014 ◽  
Vol 26 ◽  
Author(s):  
Jared , G. Underwood ◽  
Mike Silbernagle ◽  
Mike Nishimoto ◽  
Kimberly , J. Uyehara
Keyword(s):  
Predator Control ◽  
Mammalian Predator ◽  
Hawaiian Waterbirds

Canopy Ant Communities in the Semiarid Mallee Region of North-Western Victoria

1992 ◽  
Vol 40 (2) ◽  
pp. 205 ◽  
Author(s):  
AN Andersen ◽  
AY Yen
Keyword(s):  
National Park ◽  
The Other ◽  
Ant Communities ◽  
Close Proximity ◽  
Abundance And Diversity ◽  
Western Victoria ◽  
North Western ◽  
Very High ◽  
Ground Nesting ◽  
Canopy Species

Ants were collected from the canopies of mallee eucalypts at Wyperfeld National Park in north-western Victoria by beating foliage on ten occasions from September 1979 to December 1980. The study was conducted at two adjacent sites: one that had been burnt by a wildfire during early 1977, and the other long unburnt. Both sites contained a mixture of three mallee eucalypt species: Eucalyptus dumosa, E. foecunda and E. incrassata. In contrast to the canopies of other eucalypt formations elsewhere in southern Australia, abundance and diversity of ants were very high. Ants represented 43-69% of all invertebrates, and a total of 44 ant species from 19 genera was collected. Iridomyrmex and Camponotus respectively contributed 10 and 11 species, and the most abundant ants were species of Iridomyrmex, Monomorium and Crematogaster. Ant composition was broadily similar at the two sites, and on different canopy species, although significant differences in abundance were apparent for some individual ant species. Except for tree-nesting Podomyrma adelaidae and Myrmecorhynchus sp. nr emeryi, the fauna was dominated by ground-nesting species, most of which appeared to forage on vegetation opportunistically. The unusually high abundance and diversity of the canopy ant fauna are attributed to the close proximity of the mallee canopy to the ground, coupled with an exceptionally rich ground ant fauna.

Selectivity of mammalian predator control in managed hunting areas: an example in a Mediterranean environment

Mammalia ◽  
2011 ◽  
Vol 75 (4) ◽  
Author(s):  
Joan Barrull ◽  
Isabel Mate ◽  
Jorge G. Casanovas ◽  
Miquel Salicrú ◽  
Joaquim Gosàlbez
Keyword(s):  
Predator Control ◽  
Mediterranean Environment ◽  
Mammalian Predator

Ultrastructural Localization of Phycocyanin in the Acidophilic, Thermophilic Alga, Cyanidium Caldarium

1973 ◽  
Vol 31 ◽  
pp. 462-463
Author(s):  
M. R. Edwards ◽  
J. D. Mainwaring
Keyword(s):  
Yellowstone National Park ◽  
National Park ◽  
Ultrastructural Localization ◽  
Review Of Literature ◽  
Cyanidium Caldarium ◽  
Taxonomic Rank ◽  
Thin Sections ◽  
Standard Methods ◽  
Laboratory Cultures

Although the general ultrastructure of Cyanidium caldarium, an acidophilic, thermophilic alga of questionable taxonomic rank, has been extensively studied (see review of literature in reference 1), some peculiar ultrastructural features of the chloroplast of this alga have not been noted by other investigators.Cells were collected and prepared for thin sections at the Yellowstone National Park and were also grown in laboratory cultures (45-52°C; pH 2-5). Fixation (glutaraldehyde-osmium), dehydration (ethanol), and embedding (Epon 812) were accomplished by standard methods. Replicas of frozenfracture d- etched cells were obtained in a Balzers apparatus. In addition, cells were examined after disruption in a French Press.

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