scholarly journals Fine-scale movement, activity patterns and home-ranges of European lobster Homarus gammarus

2015 ◽  
Vol 536 ◽  
pp. 203-219 ◽  
Author(s):  
DJ Skerritt ◽  
PA Robertson ◽  
AC Mill ◽  
NVC Polunin ◽  
C Fitzsimmons
Keyword(s):  
Activity Patterns ◽  
Home Ranges ◽  
Fine Scale ◽  
Movement Activity ◽  
European Lobster ◽  
Homarus Gammarus

scholarly journals Fine-scale assessment of home ranges and activity patterns for resident black vultures (Coragyps atratus) and turkey vultures (Cathartes aura)

PLoS ONE ◽  
2017 ◽  
Vol 12 (7) ◽  
pp. e0179819 ◽  
Author(s):  
Amanda E. Holland ◽  
Michael E. Byrne ◽  
A. Lawrence Bryan ◽  
Travis L. DeVault ◽  
Olin E. Rhodes ◽  
...  
Keyword(s):  
Activity Patterns ◽  
Home Ranges ◽  
Fine Scale ◽  
Cathartes Aura ◽  
Scale Assessment ◽  
Turkey Vultures

scholarly journals Reproductive behavior drives female space use in a sedentary Neotropical frog

PeerJ ◽  
2020 ◽  
Vol 8 ◽  
pp. e8920 ◽  
Author(s):  
Marie-Therese Fischer ◽  
Max Ringler ◽  
Eva Ringler ◽  
Andrius Pašukonis
Keyword(s):  
Activity Patterns ◽  
Space Use ◽  
Scale Space ◽  
Spatial Behavior ◽  
Home Ranges ◽  
Fine Scale ◽  
Behavioral Repertoire ◽  
Allobates Femoralis ◽  
And Behavior ◽  
Female Space

Longer-range movements of anuran amphibians such as mass migrations and habitat invasion have received a lot of attention, but fine-scale spatial behavior remains largely understudied. This gap is especially striking for species that show long-term site fidelity and display their whole behavioral repertoire in a small area. Studying fine-scale movement with conventional capture-mark-recapture techniques is difficult in inconspicuous amphibians: individuals are hard to find, repeated captures might affect their behavior and the number of data points is too low to allow a detailed interpretation of individual space use and time budgeting. In this study, we overcame these limitations by equipping females of the Brilliant-Thighed Poison Frog (Allobates femoralis) with a tag allowing frequent monitoring of their location and behavior. Neotropical poison frogs are well known for their complex behavior and diverse reproductive and parental care strategies. Although the ecology and behavior of the polygamous leaf-litter frog Allobates femoralis is well studied, little is known about the fine-scale space use of the non-territorial females who do not engage in acoustic and visual displays. We tracked 17 females for 6 to 17 days using a harmonic direction finder to provide the first precise analysis of female space use in this species. Females moved on average 1 m per hour and the fastest movement, over 20 m per hour, was related to a subsequent mating event. Traveled distances and activity patterns on days of courtship and mating differed considerably from days without reproduction. Frogs moved more on days with lower temperature and more precipitation, but mating seemed to be the main trigger for female movement. We observed 21 courtships of 12 tagged females. For seven females, we observed two consecutive mating events. Estimated home ranges after 14 days varied considerably between individuals and courtship and mating associated space use made up for ∼30% of the home range. Allobates femoralis females spent large parts of their time in one to three small centers of use. Females did not adjust their time or space use to the density of males in their surroundings and did not show wide-ranging exploratory behavior. Our study demonstrates how tracking combined with detailed behavioral observations can reveal the patterns and drivers of fine-scale spatial behavior in sedentary species.

scholarly journals Activity patterns of wild European lobster Homarus gammarus in coastal marine reserves: implications for future reserve design

2011 ◽  
Vol 429 ◽  
pp. 197-207 ◽  
Author(s):  
E Moland ◽  
E Moland Olsen ◽  
H Knutsen ◽  
JA Knutsen ◽  
SE Enersen ◽  
...  
Keyword(s):  
Marine Reserves ◽  
Activity Patterns ◽  
Reserve Design ◽  
European Lobster ◽  
Homarus Gammarus ◽  
Coastal Marine

The reaction of European lobster larvae (Homarus gammarus) to different quality food: effects of ontogenetic shifts and pre-feeding history

Oecologia ◽  
2013 ◽  
Vol 174 (2) ◽  
pp. 581-594 ◽  
Author(s):  
Katherina L. Schoo ◽  
Nicole Aberle ◽  
Arne M. Malzahn ◽  
Isabel Schmalenbach ◽  
Maarten Boersma
Keyword(s):  
Food Effects ◽  
European Lobster ◽  
Ontogenetic Shifts ◽  
Homarus Gammarus ◽  
Quality Food

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.

Home Ranges, Movements and Activity Patterns of Leopard Cats (Prionailurus bengalensis) and Threats to Them in Taiwan

Mammal Study ◽  
2016 ◽  
Vol 41 (2) ◽  
pp. 77-86 ◽  
Author(s):  
Mei-Ting Chen ◽  
Yu-Jen Liang ◽  
Chih-Chuan Kuo ◽  
Kurtis Jai-Chyi Pei
Keyword(s):  
Activity Patterns ◽  
Home Ranges ◽  
Prionailurus Bengalensis

Snowmobile Effects on Movements of White-tailed Deer: A Case-study

1979 ◽  
Vol 6 (1) ◽  
pp. 45-51 ◽  
Author(s):  
Ronald G. Eckstein ◽  
Thomas F. O'Brien ◽  
Orrin J. Rongstad ◽  
John G. Bollinger
Keyword(s):  
Home Range ◽  
Habitat Use ◽  
Odocoileus Virginianus ◽  
Activity Patterns ◽  
Home Range Size ◽  
Range Size ◽  
Home Ranges

The effects of snowmobile traffic on the winter home-ranges, movements, and activity patterns, of White-tailed Deer (Odocoileus virginianus), were studied during two winters in northern Wisconsin. There were no significant differences in home-range size and habitat use of the Deer in areas with and without snowmobiling. However, snowmobiling caused some Deer to leave the immediate vicinity of the snowmobile trail. Deer were most affected when they were within 61 m of the snowmobile trail.

scholarly journals New estimates and complications in the assessment of female functional maturity for the European lobster (Homarus gammarus) on the Yorkshire Coast (UK)

2018 ◽  
Vol 6 (2) ◽  
Author(s):  
James Michael Wood
Keyword(s):  
Functional Maturity ◽  
European Lobster ◽  
Homarus Gammarus

New estimates of female Homarus gammarus functional maturity were developed from targeted offshore and quayside based industry surveys in the Yorkshire Coast fishery. Offshore surveys also provided the first stock specific quantification of pre-recruit contributions. A contrast in results identified a new complication in estimating functional maturity attributed to ‘soft’ animal exploitation which is reviewed and assessed.

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