First telemetry study of bush dogs: home range, activity and habitat selection

2012 ◽  
Vol 39 (6) ◽  
pp. 512 ◽  
Author(s):  
Edson de Souza Lima ◽  
Karen E. DeMatteo ◽  
Rodrigo S. P. Jorge ◽  
Maria Luisa S. P. Jorge ◽  
Julio Cesar Dalponte ◽  
...  
Keyword(s):  
Home Range ◽  
Habitat Preferences ◽  
Indirect Evidence ◽  
Movement Patterns ◽  
Primary Sources ◽  
Sources Of Information ◽  
Mato Grosso ◽  
Seasonal Movement ◽  
Ecological Requirements ◽  
Bush Dog

Context The bush dog (Speothos venaticus) is difficult to observe, capture, and study. To date, indirect evidence and opportunistic field observations have been the primary sources of information about the species’ ecology. Field data are urgently needed to clarify the species’ ecological requirements, behaviour and movement patterns. Aims The present study uses 13 months of telemetry data from a group of bush dogs to begin to address questions about area requirements, habitat preferences and movement patterns of this difficult-to-study species. Methods We tracked a group of bush dogs (two adults, one juvenile, four young) in an area of intact and altered Cerrado (woodland–savanna biome) in eastern Mato Grosso, Brazil (Nova Xavantina District). Key results The group had a total home range of 140 km2 (fixed kernel 95%), with smaller seasonal ‘subareas’ (areas used for 1–2 months before moving to another area, with repetition of some areas over time) and demonstrated a preference for native habitats. Conclusions The bush dog’s home range is greater than that of other canids of the same size, even correcting for group size. Patterns of seasonal movement are also different from what has been observed in other South American canids. Implications From our observations in the Brazilian savanna, bush dogs need large tracks of native habitat for their long-term persistence. Although the present study is based on a single pack, it is highly relevant for bush dog conservation because it provides novel information on the species’ spatial requirements and habitat preferences.

Home range and movements of postfledging American black ducks in eastern Maine

1990 ◽  
Vol 68 (6) ◽  
pp. 1288-1291 ◽  
Author(s):  
Catherine Frazer ◽  
Jerry R. Longcore ◽  
Daniel G. McAuley
Keyword(s):  
Home Range ◽  
New Brunswick ◽  
Movement Patterns ◽  
Home Ranges ◽  
National Wildlife Refuge ◽  
Riverine Wetlands ◽  
Wildlife Refuge ◽  
Seasonal Movement ◽  
Riverine Habitat ◽  
American Black

We monitored the movements of 97 female and 15 male juvenile American black ducks (Anas rubripes) in the vicinity of Moosehom National Wildlife Refuge in eastern Maine and southwestern New Brunswick from September through mid-December, 1985–1987. Movements were described by estimating home ranges and radial movements from the primary roost marsh. Overall home range sizes averaged 4987 ha (range 54 – 28 070 ha), and maximum distances moved from the roost averaged 9.9 km (range 0.9–42.8 km). Home ranges were linear (linearity index 2.8), and home range area and distance of movements from the roost both increased monthly. Ducks that used >15% riverine habitat had larger home ranges and moved greater distances from the roost than ducks using <15% riverine wetlands. Movements did not differ between ducks usually alone and those usually in flocks. Juvenile black ducks moved in small flocks and were often alone (34% of 355 observations). Most ducks showed fidelity to one roost-marsh complex from September until migration in late November. Daily and seasonal movement patterns were similar to those predicted for refuging systems.

Seasonal Movement Patterns and Habitat Preferences of Age-0 Lake Sturgeon in the Lower Peshtigo River, Wisconsin

2005 ◽  
Vol 134 (5) ◽  
pp. 1400-1409 ◽  
Author(s):  
Angela C. Benson ◽  
Trent M. Sutton ◽  
Robert F. Elliott ◽  
Thomas G. Meronek
Keyword(s):  
Habitat Preferences ◽  
Movement Patterns ◽  
Lake Sturgeon ◽  
Seasonal Movement

scholarly journals The bush dog Speothos venaticus: area requirement and habitat use in cultivated lands

Oryx ◽  
2014 ◽  
Vol 49 (1) ◽  
pp. 64-70 ◽  
Author(s):  
Edson S. Lima ◽  
Maria Luisa S. P. Jorge ◽  
Rodrigo S. P. Jorge ◽  
Ronaldo G. Morato
Keyword(s):  
Home Range ◽  
Habitat Use ◽  
Structural Connectivity ◽  
Composition Analysis ◽  
Native Vegetation ◽  
Cultivated Land ◽  
Mato Grosso ◽  
Negative Effect ◽  
Bush Dog ◽  
Speothos Venaticus

AbstractWe radio-tracked a pack of bush dogs Speothos venaticus (7–10 individuals) near Água Boa in Mato Grosso, Brazil, for 18 months to investigate their use of habitat in cultivated land. The pack's home range was 709 km2 (fixed-kernel 95%), which exceeds estimates of home range for the largest Neotropical carnivore, the jaguar Panthera onca. Of the 245 locations where the dogs were recorded 95% were within native vegetation (savannah and forest), even though these habitats comprised only 34% of the pack's home range. This indicates a preference for native vegetation, and this was reinforced by composition analysis of habitat use, which showed that the pack used savannah and forest more than expected and cultivated areas less than expected. Analysis of activity showed that the bush dogs were moving quickly in more than half of the locations in cultivated areas, foraging in most savannah locations and resting in most forest locations. Our results indicate that bush dogs can live in areas with a high proportion of cultivated land (66%), possibly because of the structural connectivity of the landscape (80% of the native habitat is within a single patch). However, their home range appears to be inflated compared to that of other carnivores, which may have a negative effect on the species in the long term.

scholarly journals Seasonal and year-round use of the Kushiro Wetland, Hokkaido, Japan by sika deer (Cervus nippon yesoensis)

PeerJ ◽  
2017 ◽  
Vol 5 ◽  
pp. e3869 ◽  
Author(s):  
Hino Takafumi ◽  
Tatsuya Kamii ◽  
Takunari Murai ◽  
Ryoto Yoshida ◽  
Atsuki Sato ◽  
...  
Keyword(s):  
Home Range ◽  
Sika Deer ◽  
Wetland Management ◽  
Movement Patterns ◽  
Cervus Nippon ◽  
Seasonal Migration ◽  
Seasonal Movement ◽  
The Impact ◽  
Wetland Utilization ◽  
Cervus Nippon Yesoensis

The sika deer (Cervus nippon yesoensis) population in the Ramsar-listed Kushiro Wetland has increased in recent years, and the Ministry of the Environment of Japan has decided to take measures to reduce the impact of deer on the ecosystem. However, seasonal movement patterns of the deer (i.e., when and where the deer inhabit the wetland) remain unclear. We examined the seasonal movement patterns of sika deer in the Kushiro Wetland from 2013 to 2015 by analyzing GPS location data for 28 hinds captured at three sites in the wetland. Seasonal movement patterns were quantitatively classified as seasonal migration, mixed, dispersal, nomadic, resident, or atypical, and the degree of wetland utilization for each individual was estimated. The area of overlap for each individual among intra-capture sites and inter-capture sites was calculated for the entire year and for each season. Our results showed that the movement patterns of these deer were classified not only as resident but also as seasonal migration, dispersal, and atypical. Approximately one-third of the individuals moved into and out of the wetland during the year as either seasonal migrants or individuals with atypical movement. Some of the individuals migrated to farmland areas outside the wetland (the farthest being 69.9 km away). Half of the individuals inhabited the wetland all or most of the year, i.e., 81–100% of their annual home range was within the wetland area. Even among individuals captured at the same site, different seasonal movement patterns were identified. The overlap areas of the home ranges of individuals from the same capture sites were larger than those for individuals from different capture sites (e.g., mean of annual home range overlap with intra-capture sites: 47.7% vs. inter-sites: 1.3%). To achieve more effective ecosystem management including deer management in the wetland, management plans should cover inside and outside of the wetland and separate the population into multiple management units to address the different movement patterns and wetland utilization of the population.

Movement patterns of feral predators in an arid environment – implications for control through poison baiting

2009 ◽  
Vol 36 (5) ◽  
pp. 422 ◽  
Author(s):  
K. E. Moseby ◽  
J. Stott ◽  
H. Crisp
Keyword(s):  
Home Range ◽  
Sand Dunes ◽  
Activity Patterns ◽  
Movement Patterns ◽  
Home Range Size ◽  
Range Size ◽  
Home Ranges ◽  
Feral Cats ◽  
Poison Baiting ◽  
Specific Variation

Control of introduced predators is critical to both protection and successful reintroduction of threatened prey species. Efficiency of control is improved if it takes into account habitat use, home range and the activity patterns of the predator. These characteristics were studied in feral cats (Felis catus) and red foxes (Vulpes vulpes) in arid South Australia, and results are used to suggest improvements in control methods. In addition, mortality and movement patterns of cats before and after a poison-baiting event were compared. Thirteen cats and four foxes were successfully fitted with GPS data-logger radio-collars and tracked 4-hourly for several months. High intra-specific variation in cat home-range size was recorded, with 95% minimum convex polygon (MCP) home ranges varying from 0.5 km2 to 132 km2. Cat home-range size was not significantly different from that of foxes, nor was there a significant difference related to sex or age. Cats preferred habitat types that support thicker vegetation cover, including creeklines and sand dunes, whereas foxes preferred sand dunes. Cats used temporary focal points (areas used intensively over short time periods and then vacated) for periods of up to 2 weeks and continually moved throughout their home range. Aerial baiting at a density of 10 baits per km2 was ineffective for cats because similar high mortality rates were recorded for cats in both baited and unbaited areas. Mortality was highest in young male cats. Long-range movements of up to 45 km in 2 days were recorded in male feral cats and movement into the baited zone occurred within 2 days of baiting. Movement patterns of radio-collared animals and inferred bait detection distances were used to suggest optimum baiting densities of ~30 baits per km2 for feral cats and 5 per km2 for foxes. Feral cats exhibited much higher intra-specific variation in activity patterns and home-range size than did foxes, rendering them a potentially difficult species to control by a single method. Control of cats and foxes in arid Australia should target habitats with thick vegetation cover and aerial baiting should ideally occur over areas of several thousand square kilometres because of large home ranges and long-range movements increasing the chance of fast reinvasion. The use of temporary focal points suggested that it may take several days or even weeks for a cat to encounter a fixed trap site within their home range, whereas foxes should encounter them more quickly as they move further each day although they have a similar home-range size. Because of high intra-specific variability in activity patterns and home-range size, control of feral cats in inland Australia may be best achieved through a combination of control techniques.

Household Evacuation Decision Making and the Benefits of Improved Hurricane Forecasting: Developing a Framework for Assessment

2010 ◽  
Vol 25 (1) ◽  
pp. 207-219 ◽  
Author(s):  
Jeffrey K. Lazo ◽  
Donald M. Waldman ◽  
Betty Hearn Morrow ◽  
Jennifer A. Thacher
Keyword(s):  
Decision Making ◽  
Economic Value ◽  
Warning System ◽  
Primary Sources ◽  
Sources Of Information ◽  
The Public ◽  
Public Investments ◽  
Improvement Programs ◽  
Hurricane Forecasting ◽  
Survey Research Methods

Abstract Hurricane warnings are the primary sources of information that enable the public to assess the risk and develop responses to threats from hurricanes. These warnings have significantly reduced the number of hurricane-related fatalities in the last several decades. Further investment in the science and implementation of the warning system is a primary mission of the National Weather Service and its partners. It is important that the weather community understand the public’s preferences and values for such investments; yet, there is little empirical information on the use of forecasts in evacuation decision making, the economic value of current forecasts, or the potential use or value for improvements in hurricane forecasts. Such information is needed to evaluate whether improved forecast provision and dissemination offer more benefit to society than alternative public investments. Fundamental aspects of households’ perceptions of hurricane forecasts and warnings and their potential uses of and values for improved hurricane forecast information are examined. The study was designed in part to examine the viability of survey research methods for exploring evacuation decision making and for eliciting values for improved hurricane forecasts and warnings. First, aspects that affect households’ stated likelihood of evacuation are explored, because informing such decisions is one of the primary purposes of hurricane forecasts and warnings. Then, stated-choice valuation methods are used to analyze choices between potential forecast-improvement programs and the accuracy of existing forecasts. From this, the willingness to pay (WTP) for improved forecasts is derived from survey respondents.

scholarly journals The Ecological and Ethical Consumption Development Prospects in Poland Compared with the Western European Countries

2011 ◽  
Vol 14 (2) ◽  
pp. 101-123 ◽  
Author(s):  
Małgorzata Koszewska
Keyword(s):  
Principal Component ◽  
Ethical Consumption ◽  
European Countries ◽  
Primary Sources ◽  
Sources Of Information ◽  
Socially Responsible ◽  
Secondary Sources ◽  
Western European ◽  
Polish Economy ◽  
Development Prospects

An overview of the Western European literature shows that one of the most distinct trends in consumption that has been noted in the recent years is globally increasing environmental and social awareness. The issue of consumers' behaviours and attitudes towards "socially responsible products" has been gaining importance in Polish economy as well. This article evaluates the development prospects of ethical and ecological consumption in Poland vis-a-vis Western European countries. The comparative analysis being part of the article utilizes primary sources of information, i.e. interviews with a representative sample of Polish adults, as well as secondary sources of information. A factor analysis or, more precisely, a principal component analysis, allowed dividing Polish consumers into groups that were typologically homogeneous in respect of their sensitivity to various aspects of business ethics and ecology.

Use of aquatic plants by moose: sodium hunger or foraging efficiency?

1993 ◽  
Vol 71 (12) ◽  
pp. 2345-2351 ◽  
Author(s):  
James G. MacCracken ◽  
Victor Van Ballenberghe ◽  
James M. Peek
Keyword(s):  
Aquatic Plants ◽  
Habitat Preferences ◽  
Indirect Evidence ◽  
Foraging Efficiency ◽  
Aquatic Habitats ◽  
Forage Production ◽  
Sex Structure ◽  
Emergent Plants ◽  
Terrestrial Habitats ◽  
Emergent Species

Use of submergent aquatic plants by North American moose (Alces alces) has been linked to sodium hunger. Habitat preferences, seasonal diets, forage abundance and quality, and population surveys indicated that emergent plants in small shallow ponds were important to moose on the Copper River Delta, Alaska. However, sodium was abundant in terrestrial browse. We propose that foraging in aquatic habitats, particularly on emergent species, may be highly efficient based on the following habitat attributes and behavioral observations: (i) ponds dominated by either emergent or submergent species produced about 4 times more forage than terrestrial habitats, (ii) emergent and submergent plants were more digestible and had higher concentrations of minerals than browse, (iii) use of aquatic habitats followed trends in forage production over the growing season, (iv) indirect evidence suggested that forage intake rates were greater in aquatic habitats, and (v) use of aquatic habitats by male and female moose was in proportion to the sex structure of the population. These data provide consistent circumstantial evidence that use of emergent species, and possibly submergents, may maximize the intake of nutrients and also reduce conflicts between cropping forage and vigilance during a foraging bout.

scholarly journals Endemic Cyprus Scops Owl Otus cyprius Readily Breeds in Artificial Nest Boxes

Animals ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. 1775
Author(s):  
Savvas Iezekiel ◽  
Reuven Yosef ◽  
Constantinos Themistokleus ◽  
Dimitrios E. Bakaloudis ◽  
Christos G. Vlachos ◽  
...  
Keyword(s):  
Rural Areas ◽  
Habitat Preferences ◽  
Bird Species ◽  
Laying Date ◽  
Artificial Nests ◽  
Breeding Parameters ◽  
Island Endemic ◽  
Nest Boxes ◽  
Ecological Requirements ◽  
Old Trees

As is well-known, endemic island bird species are especially vulnerable to extinction from anthropogenic environmental change and reduced fitness compared with mainland taxa. The Cyprus Scops Owl, Otus cyprius, is a recently recognized island endemic species whose ecology and breeding biology have not been studied. It nests mainly in holes in trees and buildings, so the felling of old trees, modern architectural practices, and the renovation of old houses in villages may reduce nest site availability. Its population trend is also unknown. Therefore, to better determine its ecological requirements and habitat preferences we placed nest boxes in rural areas adjacent to the forest, in the forest, and in the ecotone between them, and used breeding success as our indicator of habitat suitability. We found that breeding parameters like laying date, clutch size, length of the incubation period, hatching day, hatching success, and number of nestlings did not differ between the three habitats. Despite the low level of nest box occupancy rate (5–11%) the endemic Cyprus Scops Owl readily breeds in artificial nests. Therefore, although we are unaware of any current threats to the Cyprus Scops Owl, we recommend that its conservation be prioritized, including studies, monitoring, habitat conservation, and the provision of nest boxes.

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