Home Range Estimates for Three North American Stream Fishes

Copeia ◽  
1987 ◽  
Vol 1987 (2) ◽  
pp. 376 ◽  
Author(s):  
Jennifer Hill ◽  
Gary D. Grossman
Keyword(s):  
Home Range ◽  
North American ◽  
Stream Fishes

Community and Evolutionary Ecology of North American Stream Fishes

Copeia ◽  
1988 ◽  
Vol 1988 (4) ◽  
pp. 1097 ◽  
Author(s):  
Kurt D. Fausch ◽  
William J. Matthews ◽  
David C. Heins
Keyword(s):  
North American ◽  
Evolutionary Ecology ◽  
Stream Fishes

scholarly journals Heterogeneity of a landscape influences size of home range in a North American cervid

2018 ◽  
Vol 8 (1) ◽  
Author(s):  
W. David Walter ◽  
Tyler S. Evans ◽  
David Stainbrook ◽  
Bret D. Wallingford ◽  
Christopher S. Rosenberry ◽  
...  
Keyword(s):  
Home Range ◽  
North American ◽  
Landscape Influences

Hierarchical habitat selection by North American porcupines in southern boreal forest

2005 ◽  
Vol 83 (10) ◽  
pp. 1333-1342 ◽  
Author(s):  
Patrick Morin ◽  
Dominique Berteaux ◽  
Ilya Klvana
Keyword(s):  
Habitat Selection ◽  
Home Range ◽  
Populus Tremuloides ◽  
North American ◽  
Deciduous Trees ◽  
Home Ranges ◽  
Trembling Aspen ◽  
Eastern Canada ◽  
Erethizon Dorsatum ◽  
Multi Scale

In habitat-selection studies, a multi-scale approach is considered necessary to ensure that all elements of selection are depicted and that management decisions accurately reflect the needs of the species under study. We examined hierarchy in summer habitat selection in North American porcupines (Erethizon dorsatum (L., 1758)) in Eastern Canada at the scales of landscape, home range, and single tree. We used radiotelemetry to locate and observe animals visually to record their behaviour and exact location in the habitat. Den use in summer was unexpectedly high for some of our animals, which forced us to use a restricted number of locations per individual for comparison among scales. Although porcupines are generalists at the landscape level, selection patterns appear at the home-range and tree levels. Human-used land and conifer forests were least selected features of home ranges, while deciduous forests dominated by trembling aspen (Populus tremuloides Michx.) and mixed forests were most selected. At the tree scale, trembling aspen was found to be selected over other deciduous trees. However, fruit-producing trees were even more selected. This study shows the importance of a multi-scale approach that includes fine-scale selection.

Evidence for the Concepts of Home Range and Territory in Stream Fishes

Ecology ◽  
1953 ◽  
Vol 34 (2) ◽  
pp. 347-365 ◽  
Author(s):  
Shelby D. Gerking
Keyword(s):  
Home Range ◽  
Stream Fishes

Community Ecology of Stream Fishes: Concepts, Approaches, and Techniques

2010 ◽  
Keyword(s):  
Home Range ◽  
Food Web ◽  
Brown Trout ◽  
Native Species ◽  
Species Traits ◽  
Stream Fishes ◽  
Food Web Structure ◽  
Stream Ecosystem ◽  
Web Structure ◽  
Microhabitat Preferences

<em>Abstract</em>.—The pumpkinseed <em>Lepomis gibbosus </em>was introduced to Europe, including England, more than 100 years ago, but relatively little is known of its potential ecological impacts on native species and ecosystems. In England, the pumpkinseed is currently established in ponds of the River Ouse (Sussex) and its flood plain. Escapee pumpkinseeds are found in some small tributaries that contain native species of conservation interest (brown trout <em>Salmo trutta</em>, brook lamprey <em>Lampetra planeri</em>, European eel <em>Anguilla anguilla</em>, European bullhead <em>Cottus gobio</em>). We used using electrofishing surveys and telemetry methods to examine the interactions between pumpkinseeds and native stream fishes (mainly brown trout), including predator–prey relationships, home range size, microhabitat preferences, home range fidelity, and habitat overlap/repartition. To assess impacts of pumpkinseed on stream food webs, a preliminary study quantified trout growth and food-web structure of a stream ecosystem (abundance of primary and secondary producers, fish, and riparian spiders) in reaches with and without pumpkinseed. Where pumpkinseeds were in high density, differences were observed in stream food-web structure, in proportional representation of fish species traits and in riparian spider community composition, but these differences cannot be attributed solely to pumpkinseed presence. From the available evidence, there appears to be little direct or indirect adverse impact of pumpkinseed on native species and the stream ecosystem when in low densities, including as a host of nonnative infectious agents. However, this could change under conditions of climate warming, which are likely to favor pumpkinseed reproduction, potentially to the detriment of native species. In a context in which freshwater ecosystems are impacted by several human and climate-induced factors acting synergistically, our results underline the need to study nonnative species impacts through a series of experimental and long-term studies of stream ecosystems.

Alteration of buoyancy by some Central American stream fishes, and a comparison with North American species

1976 ◽  
Vol 54 (3) ◽  
pp. 386-391 ◽  
Author(s):  
John H. Gee ◽  
Phyllis A. Gee
Keyword(s):  
Internal Pressure ◽  
Flow Regime ◽  
North American ◽  
North American Species ◽  
Central American ◽  
Water Current ◽  
Stream Fishes ◽  
Swim Bladder ◽  
The North ◽  
Excess Internal Pressure

Of 23 species (nine families) of Central American fishes examined, nine (eight physostomes, one physoclist) did not reduce buoyancy by decreasing swim-bladder volume when current was encountered. The remainder (six physostomes, eight physoclists) decreased buoyancy, usually within 24–48 h, but three of these species (one physostome) were unable to maintain a reduced buoyancy for as long as 72 h once the minimum was achieved. All species have an excess internal pressure of swim-bladder gas. All of the North American species that have been studied do show a buoyancy alteration in response to changes in water current and adjust to a greater extent, although rates of adjustment appear similar to those of Central American fishes. Differences in flow regime between North and Central American streams are described and may partially account for these differences in reaction to water current.

Sign in / Sign up

Export Citation Format

Share Document