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H.E. James Hammond
Natural Resources Canada
14Publications
7H-index
218Citations
Publications 15
Newest
#1Jan KlimaszewskiH-Index: 18
Last.Karine SavardH-Index: 8
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#1H.E. James HammondH-Index: 7
#2David W. LangorH-Index: 30
Last.Dustin J. HartleyH-Index: 4
view all 3 authors...
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#1H.E. James Hammond (NRCan: Natural Resources Canada)H-Index: 7
#2Philip G. K. Hoffman (NRCan: Natural Resources Canada)H-Index: 1
Last.Dustin J. Hartley (NRCan: Natural Resources Canada)H-Index: 4
view all 6 authors...
Species loss caused by anthropogenic disturbance threatens forest ecosystems globally. Until 50 years ago, the major sources of boreal forest disturbance in western Canada were a combination of forest wild fire events, pest insect outbreaks, and forest timber harvesting. However, in the 1960s, when the oil boom started in Alberta, oil and gas development along with oil sands mining quickly became another major forest disturbance agent. In this case study we report the effects of operational oil ...
1 CitationsSource
#1H.E. James Hammond (NRCan: Natural Resources Canada)H-Index: 7
#2David W. Langor (NRCan: Natural Resources Canada)H-Index: 30
Last.John R. Spence (U of A: University of Alberta)H-Index: 10
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Abstract Stand dynamics in the boreal forest are driven by wildfire, and many think that emulating forest fire patterns during harvesting will adequately preserve biodiversity. We tested this hypothesis by examining saproxylic beetle assemblages from a chronosequence of aspen forest stands originating after wildfire or harvest across several age classes (1–2, 14–15, 28–29 years old) as well as from mature (60–80 years old) and overmature (>120 years old) stands of pyrogenic origin. Using window-...
6 CitationsSource
#1Anna Dabros (NRCan: Natural Resources Canada)H-Index: 3
#2H.E. James Hammond (NRCan: Natural Resources Canada)H-Index: 7
Last.David W. Langor (NRCan: Natural Resources Canada)H-Index: 30
view all 5 authors...
Abstract Low-impact seismic (LIS) techniques were developed to reduce the environmental footprint of oil exploration. Though relatively narrow (∼2–3 m) and constructed with light-weight equipment, these lines cause forest fragmentation, and with their high density and potential edge influence extending into adjacent forest, their impact may be considerably underestimated. We assessed the effects of 3- to 4-year-old LIS lines in upland coniferous sub-boreal forests in northwestern Alberta (Canada...
10 CitationsSource
#1Jan KlimaszewskiH-Index: 18
#2David W. LangorH-Index: 30
Last.Caroline BourdonH-Index: 9
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A new species, Anomognathus athabascensis Klimaszewski, Hammond & Langor, sp. n., and nine new provincial records including one new country record of aleocharine beetles are presented for the province of Alberta. Diagnostics, images of habitus and genital structures, distribution, natural history information and new locality data are provided for the newly recorded species. A checklist for all recorded aleocharines from Alberta is updated.
5 CitationsSource
#1Jan KlimaszewskiH-Index: 18
#2Reginald P. WebsterH-Index: 11
Last.Benoit GodinH-Index: 6
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Four species of Gnathusa Fenyes (G. alfacaribou Klimaszewski & Langor, G. caribou Lohse, G. eva Fenyes, and G. tenuicornis Fenyes) occur in the Nearctic and in Canada. Three species of Ocyusa Kraatz (O. asperula Casey, O. californica Bernhauer, O. canadensis Lohse), and three species of Mniusa Mulsant and Ray (M. minutissima (Klimaszewski & Langor), M. yukonensis (Klimaszewski & Godin), and M. odelli Klimaszewski & Webster, sp. n.), are known from the Nearctic and all but O. californica occur in...
9 CitationsSource
#1H.E. James Hammond (NRCan: Natural Resources Canada)H-Index: 7
#2Daryl J. Williams (NRCan: Natural Resources Canada)H-Index: 5
Source
#1H.E. James Hammond (NRCan: Natural Resources Canada)H-Index: 7
#2Daryl J. Williams (NRCan: Natural Resources Canada)H-Index: 5
ABSTRACT The North American species of Callimoxys Kraatz, 1863 are revised. Callimoxys sanguinicollis (Olivier, 1795), Callimoxys fuscipennis (LeConte, 1861), new status, and Callimoxys pinorum Casey, 1924, new status, are recognized as valid, and two new species (Callimoxys ocularis Hammond and Williams, type locality West Saylorville Lake, Iowa, and Callimoxys nigrinis Hammond and Williams, type locality near Brenham, Texas) are described. A key to the world fauna is included, as well as a rev...
3 CitationsSource
#1David W. Langor (NRCan: Natural Resources Canada)H-Index: 30
#2H.E. James Hammond (NRCan: Natural Resources Canada)H-Index: 7
Last.Tyler P. Cobb (U of A: University of Alberta)H-Index: 8
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Saproxylic insect assemblages inhabiting dead wood in Canadian forests are highly diverse and variable but quite poorly understood. Adequate assessment of these assemblages poses significant challenges with respect to sampling, taxonomy, and analysis. Their assessment is nonetheless critical to attaining the broad goals of sustainable forest management because such species are disproportionately threatened elsewhere by the reductions in dead wood generally as- sociated with commercial exploitati...
50 CitationsSource
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