Modelling spatial exclusion of a vulnerable native fish by introduced trout in rivers using landscape features: a new tool for conservation management

2011 ◽  
Vol 21 (5) ◽  
pp. 484-493 ◽  
Author(s):  
Darragh J. Woodford ◽  
Thomas A. Cochrane ◽  
Peter A. McHugh ◽  
Angus R. McIntosh
Keyword(s):  
Conservation Management ◽  
Native Fish ◽  
Landscape Features ◽  
Spatial Exclusion

scholarly journals Linking behavioral states to landscape features for improved conservation management

2021 ◽  
Author(s):  
Maitreyi Sur ◽  
Brian Woodbridge ◽  
Todd C. Esque ◽  
Jim R. Belthoff ◽  
Peter H. Bloom ◽  
...  
Keyword(s):  
Conservation Management ◽  
Landscape Features ◽  
Behavioral States

scholarly journals Reservoir refilling enhances growth and recruitment of an endangered remnant riverine fish

2014 ◽  
Vol 71 (12) ◽  
pp. 1888-1899 ◽  
Author(s):  
Zeb Tonkin ◽  
Jarod Lyon ◽  
David S.L. Ramsey ◽  
Nick R. Bond ◽  
Graeme Hackett ◽  
...  
Keyword(s):  
Conservation Management ◽  
Population Expansion ◽  
Fish Growth ◽  
Fish Populations ◽  
Native Fish ◽  
Similar Response ◽  
Lake Levels ◽  
Reservoir Construction ◽  
Height Change ◽  
Riverine Fish

Rapid increases in native riverine fish populations associated with trophic upsurge immediately following reservoir construction are well documented. Repeated upsurge periods and extended benefits to populations are, however, less understood. We used sclerochronology to investigate fish growth and netting surveys to estimate recruitment and abundance of a lacustrine population of an Australian riverine fish, the Macquarie perch (Macquaria australasica) in Lake Dartmouth. Record low inflows from 1997 to 2008 caused the reservoir to shrink to its lowest volume since construction. Refilling began in 2008, reaching 99% capacity in 2013. We hypothesized that fish growth, recruitment, and abundance would increase in response to the refilling of the lake, reproducing a similar response to the initial filling period. Our findings supported this hypothesis. Macquarie perch growth, recruitment, and abundance were enhanced during the refilling of Lake Dartmouth. Growth, best explained by the effects of dam height, change in dam height, temperature (and their interactions), and recruitment, were highest during the first years of refilling when lake levels and temperatures were low. We propose one or a combination of varying levels of intraspecific competition (low during initial filling and high following population expansion) and improved riverine conditions for reproductive success as the most plausible explanation. Our results suggest extended periods of low lake levels followed by rapid inundation events are likely to enhance recruitment and population growth opportunities for this species. While reservoir construction in general impacts negatively on native fish populations, the potential to offset these impacts for conservation management purposes should be considered.

Dataset for Linking Behavioral States to Landscape Features for Improved Conservation Management

2021 ◽  
Author(s):  
Maitreyi Sur ◽  
Brian Woodbridge ◽  
Todd C. Esque ◽  
Jim R. Belthoff ◽  
Peter H. Bloom ◽  
...  
Keyword(s):  
Conservation Management ◽  
Landscape Features ◽  
Behavioral States

LANDSCAPE FEATURES INFLUENCE BEDROCK FRACTURE OPENNESS IN THE DEEP SUBSURFACE

2019 ◽  
Author(s):  
Seulgi Moon ◽  
◽  
J. Taylor Perron ◽  
Stephen J. Martel ◽  
Bradley W. Goodfellow ◽  
...  
Keyword(s):  
Deep Subsurface ◽  
Landscape Features

Landscape Features and Panthers in Florida

1995 ◽  
Vol 9 (5) ◽  
pp. 1008-1019 ◽  
Author(s):  
DAVID S. MAEHR ◽  
JAMES A. COX
Keyword(s):  
Landscape Features
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