An Adaptive Strategy for Reducing Feral Cat Predation on Endangered Hawaiian Birds

2009 ◽  
Vol 15 (1) ◽  
pp. 56 ◽  
Author(s):  
Steven C. Hess ◽  
Paul C. Banko ◽  
Heidi Hansen

Despite the long history of Feral Cats Felis catus in Hawai?i, there has been little research to provide strategies to improve control programmes and reduce depredation on endangered species. Our objective was to develop a predictive model to determine how landscape features on Mauna Kea, such as habitat, elevation, and proximity to roads, may affect the number of Feral Cats captured at each trap. We used log-link generalized linear models and QAICc model ranking criteria to determine the effect of these factors. We found that the number of cats captured per trap was related to effort, habitat type, and whether traps were located on the West or North Slope of Mauna Kea. We recommend an adaptive management strategy to minimize trapping interference by non-target Small Indian Mongoose Herpestes auropunctatus with toxicants, to focus trapping efforts in Mamane Sophora chrysophylla habitat on the West slope of Mauna Kea, and to cluster traps near others that have previously captured multiple cats.


2020 ◽  
Vol 47 (8) ◽  
pp. 669
Author(s):  
Rosemary Hohnen ◽  
Karleah Berris ◽  
Pat Hodgens ◽  
Josh Mulvaney ◽  
Brenton Florence ◽  
...  

Abstract Context Feral cats (Felis catus) are a significant threat to wildlife in Australia and globally. In Australia, densities of feral cats vary across the continent and also between the mainland and offshore islands. Densities on small islands may be at least an order of magnitude higher than those in adjacent mainland areas. To provide cat-free havens for biodiversity, cat-control and eradication programs are increasingly occurring on Australian offshore islands. However, planning such eradications is difficult, particularly on large islands where cat densities could vary considerably. Aims In the present study, we examined how feral cat densities vary among three habitats on Kangaroo Island, a large Australian offshore island for which feral cat eradication is planned. Methods Densities were compared among the following three broad habitat types: forest, forest–farmland boundaries and farmland. To detect cats, three remote-camera arrays were deployed in each habitat type, and density around each array was calculated using a spatially explicit capture–recapture framework. Key results The average feral cat density on Kangaroo Island (0.37 cats km−2) was slightly higher than that on the Australian mainland. Densities varied from 0.06 to 3.27 cats km−2 and were inconsistent within broad habitat types. Densities were highest on farms that had a high availability of macropod and sheep carcasses. The relationship between cat density and the proportion of cleared land in the surrounding area was weak. The total feral cat population of Kangaroo Island was estimated at 1629±661 (mean±s.e.) individuals. Conclusions Cat densities on Kangaroo Island are highly variable and may be locally affected by factors such as prey and carrion availability. Implications For cat eradication to be successful, resources must be sufficient to control at least the average cat density (0.37 cats km−2), with additional effort around areas of high carcass availability (where cats are likely to be at a higher density) potentially also being required.



Animals ◽  
2019 ◽  
Vol 9 (9) ◽  
pp. 687 ◽  
Author(s):  
Margaret Nichols ◽  
James Ross ◽  
Alistair S. Glen ◽  
Adrian M. Paterson

We deploy camera traps to monitor feral cat (Felis catus) populations at two pastoral sites in Hawke’s Bay, North Island, New Zealand. At Site 1, cameras are deployed at pre-determined GPS points on a 500-m grid, and at Site 2, cameras are strategically deployed with a bias towards forest and forest margin habitat where possible. A portion of cameras are also deployed in open farmland habitat and mixed scrub. We then use the abundance-induced heterogeneity Royle–Nichols model to estimate mean animal abundance and detection probabilities for cameras in each habitat type. Model selection suggests that only cat abundance varies by habitat type. Mean cat abundance is highest at forest margin cameras for both deployment methods (3 cats [95% CI 1.9–4.5] Site 1, and 1.7 cats [95% CI 1.2–2.4] Site 2) but not substantially higher than in forest habitats (1.7 cats [95% CI 0.8–3.6] Site 1, and 1.5 cats [95% CI 1.1–2.0] Site 2). Model selection shows detection probabilities do not vary substantially by habitat (although they are also higher for cameras in forest margins and forest habitats) and are similar between sites (8.6% [95% CI 5.4–13.4] Site 1, and 8.3% [5.8–11.9] Site 2). Cat detections by camera traps are higher when placed in forests and forest margins; thus, strategic placement may be preferable when monitoring feral cats in a pastoral landscape.



2000 ◽  
Vol 27 (2) ◽  
pp. 261-268
Author(s):  
R. J. CLEEVELY

A note dealing with the history of the Hawkins Papers, including the material relating to John Hawkins (1761–1841) presented to the West Sussex Record Office in the 1960s, recently transferred to the Cornwall County Record Office, Truro, in order to be consolidated with the major part of the Hawkins archive held there. Reference lists to the correspondence of Sibthorp-Hawkins, Hawkins-Sibthorp, and Hawkins to his mother mentioned in The Flora Graeca story (Lack, 1999) are provided.



2007 ◽  
Vol 4 (3) ◽  
pp. 331-358
Author(s):  
WEN-CHIN OUYANG

I begin my exploration of ‘Ali Mubarak (1823/4–1893) and the discourses on modernization ‘performed’ in his only attempt at fiction, ‘Alam al-Din (The Sign of Religion, 1882), with a quote from Guy Davenport because it elegantly sums up a key theoretical principle underpinning any discussion of cultural transformation and, more particularly, of modernization. Locating ‘Ali Mubarak and his only fictional work at the juncture of the transformation from the ‘traditional’ to the ‘modern’ in the recent history of Arab culture and of Arabic narrative, I find Davenport's pronouncement tantalizingly appropriate. He not only places the stakes of history and geography in one another, but simultaneously opens up the imagination to the combined forces of time and space that stand behind these two distinct yet related disciplines.



1982 ◽  
Vol 35 (2) ◽  
pp. 237-279 ◽  
Author(s):  
Leo Treitler
Keyword(s):  
The West ◽  


2015 ◽  
pp. 91 ◽  
Author(s):  
V. D. Mats ◽  
I. M. Yefimova ◽  
A. A. Kulchitskii


2011 ◽  
Vol 2 (2) ◽  
pp. 69-112
Author(s):  
Pierre Legendre

"Der Beitrag reevaluiert die «dogmatische Funktion», eine soziale Funktion, die mit biologischer und kultureller Reproduktion und folglich der Reproduktion des industriellen Systems zusammenhängt. Indem sie sich auf der Grenze zwischen Anthropologie und Rechtsgeschichte des Westens situiert, nimmt die Studie die psychoanalytische Frage nach der Rolle des Rechts im Verhalten des modernen Menschen erneut in den Blick. </br></br>This article reappraises the dogmatic function, a social function related to biological and cultural reproduction and consequently to the reproduction of the industrial system itself. On the borderline of anthropology and of the history of law – applied to the West – this study takes a new look at the question raised by psychoanalysis concerning the role of law in modern human behaviour. "



Author(s):  
Yuriy Makar

On December 22, 2017 the Ukrainian Diplomatic Service marked the 100thanniversary of its establishment and development. In dedication to such a momentous event, the Department of International Relations of Yuriy Fedkovych Chernivtsi National University has published a book of IR Dept’s ardent activity since its establishment. It includes information both in Ukrainian and English on the backbone of the collective and their versatile activities, achievements and prospects for the future. The author delves into retracing the course of the history of Ukrainian Diplomacy formation and development. The author highlights the roots of its formation, reconsidering a long way of its development that coincided with the formation of basic elements of Ukrainian statehood that came into existence as a result of the war of national liberation – the Ukrainian Central Rada (the Central Council of Ukraine). Later, the Ukrainian or so-called State the Hetmanate was under study. The Directorat (Directory) of Ukraine, being a provisional collegiate revolutionary state committee of the Ukrainian People’s Republic, was given a thorough study. Of particular interest for the research are diplomatic activities of the West Ukrainian People`s Republic. Noteworthy, the author emphasizes on the Ukrainian Socialist Soviet Republic’s foreign policy, forced by the Bolshevist Russia. A further important implication is both the challenges of the Ukrainian statehood establishing and Ukraine’s functioning as a state, first and foremost, stemmed from the immaturity and conscience-unawareness of the Ukrainian society, that, ultimately, has led to the fact, that throughout the twentieth century Ukraine as a statehood, being incorporated into the Soviet Union, could hardly be recognized as a sovereign state. Our research suggests that since the beginning of the Ukrainian Diplomacy establishment and its further evolution, it used to be unprecedentedly fabricated and forged. On a wider level, the research is devoted to centennial fight of Ukraine against Russian violence and aggression since the WWI, when in 1917 the Russian Bolsheviks, headed by Lenin, started real Russian war against Ukraine. Apropos, in the about-a-year-negotiation run, Ukraine, eventually, failed to become sovereign. Remarkably, Ukraine finally gained its independence just in late twentieth century. Nowadays, Russia still regards Ukraine as a part of its own strategic orbit,waging out a carrot-and-stick battle. Keywords: The Ukrainian People’s Republic, the State of Ukraine, the Hetmanate, the Direcorat (Directory) of Ukraine, the West Ukrainian People`s Republic, the Ukrainian Socialist Soviet Republic, Ukraine, the Bolshevist Russia, the Russian Federation, Ukrainian diplomacy



2005 ◽  
Vol 92 (1) ◽  
pp. 497-521 ◽  
Author(s):  
Dan Penny ◽  
Christophe Pottier ◽  
Matti Kummu ◽  
Roland Fletcher ◽  
Ugo Zoppi ◽  
...  


Sign in / Sign up

Export Citation Format

Share Document