Effects of group selection silviculture in bottomland hardwoods on the spatial activity patterns of bats

Menzel, Michael; Carter, Timothy C.; Menzel, Jennifer M.; Ford, W. Mark; Chapman, Brian R.

doi:10.1016/s0378-1127(01)00516-3

Cited by 77 publications

(75 citation statements)

References 9 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Individual bat taxa responded to treatments consistent with predictions from ecomorphology. Closed-space bats were less active in clearcuts than unharvested forest, large edge-space bats were more active in clearcuts (especially along edges), and smaller edge-space bats were less influenced by patch type and location within coupes; consistent with other studies of forest clearcuts from North America Menzel et al 2002;Patriquin and Barclay 2003).…”

Section: Variable Retention Harvestssupporting

confidence: 89%

“…Most importantly, foraging activity is typically much higher on forest trails than within the forest remote from trails or along narrow riparian zones (Law and Chidel 2002;Lloyd et al 2006;Webala et al 2011). Use of trails as linear edges in regenerating forest has also been reported in North America (Menzel et al 2002). These observations highlight the importance of edge habitats to many bat species within each ensemble, in all the regions covered in this chapter.…”

Section: Forest Edgesupporting

confidence: 59%

See 1 more Smart Citation

Insectivorous Bats and Silviculture: Balancing Timber Production and Bat Conservation

Law

Park

Lacki

2015

Bats in the Anthropocene: Conservation of Bats in a Changing World

View full text Add to dashboard Cite

Forests are one of the most important habitats for insectivorous bats as they offer the potential for both roosting and foraging. We reviewed silvicultural literature from North America, Australia, and Europe and found that diverse research approaches have revealed commonalities in bat responses to forest silviculture. Almost all silvicultural treatments evaluated were compatible with some use by forest bats, though different bat ensembles respond in different ways. Ensemble ecomorphology was a consistent predictor of how bats respond to vegetative clutter and its dynamic changes as forests regenerate and develop a dense structure following harvesting. Sustaining high levels of bat diversity in timber production forests requires a mix of silvicultural treatments and exclusion areas staggered across the landscape, regardless of forest type or geographic region. Use of edge habitats, exclusion areas/set-asides, and riparian corridors for roosting and foraging by bats were consistent themes in the literature reviewed, and these habitat elements need to be considered in forest planning. Densities of hollow or dead trees sufficient to support large populations of roosting bats are unknown and remain a major knowledge gap, but will likely be species contingent. New paradigm shifts in forest management away from the use of even-aged systems to multi-spatial scale retention of mature forest including trees with cavities should be beneficial to bats, which are influenced by landscape-scale management. Such

show abstract

Section: Variable Retention Harvestssupporting

confidence: 89%

Section: Forest Edgesupporting

confidence: 59%

Insectivorous Bats and Silviculture: Balancing Timber Production and Bat Conservation

Law

Park

Lacki

2015

Bats in the Anthropocene: Conservation of Bats in a Changing World

View full text Add to dashboard Cite

show abstract

“…Some studies suggest otherwise (Shelly 1988), but others involving insect predators (bats, Menzel et al 2002;treefrogs, Cromer et al 2002, Horn et al 2005; and birds, Kilgo et al 1999) lend support to the conclusion that gaps generally do contain greater abundances of insects. In this and related papers (Ulyshen et al 2004(Ulyshen et al , 2005, we report increases in the abundance and species richness of insects in young gaps, but older gaps and the forests surrounding them contained comparable numbers of insects.…”

Section: Discussionmentioning

confidence: 99%

Herbivorous Insect Response to Group Selection Cutting in a Southeastern Bottomland Hardwood Forest

et al. 2005

View full text Add to dashboard Cite

Malaise and pitfall traps were used to sample herbivorous insects in canopy gaps created by group-selection cutting in a bottomland hardwood forest in South Carolina. The traps were placed at the centers, edges, and in the forest adjacent to gaps of different sizes (0.13, 0.26, and 0.50 ha) and ages (1 and 7 yr old) during four sampling periods in 2001. Overall, the abundance and species richness of insect herbivores were greater at the centers of young gaps than at the edge of young gaps or in the forest surrounding young gaps. There were no differences in abundance or species richness among old gap locations (i.e., centers, edges, and forest), and we collected signiÞcantly more insects in young gaps than old gaps. The insect communities in old gaps were more similar to the forests surrounding them than young gap communities were to their respective forest locations, but the insect communities in the two forests locations (surrounding young and old gaps) had the highest percent similarity of all. Although both abundance and richness increased in the centers of young gaps with increasing gap size, these differences were not signiÞcant. We attribute the increased numbers of herbivorous insects to the greater abundance of herbaceous plants available in young gaps.KEY WORDS selection cutting, uneven-aged silviculture, forest openings, forest management WHILE THE EFFECTS OF insect herbivory on plant communities and rates of succession have been well studied (Breedlove and Ehrlich 1968, Brown 1984, Hendrix et al. 1988, Brown and Gange 1992, McBrien et al. 1983, relatively little is known about how plant succession affects herbivorous insects (Bach 1990). Given the relative abundance of young herbaceous growth in early stages of succession, one might expect to Þnd increased numbers of herbivorous insects there compared with more mature habitats. Indeed, past work recognizes the importance of increasing taxonomic and structural diversity of plants to the creation and maintenance of a diverse insect community during succession (Murdoch et al. 1972, Lawton 1978, Southwood et al. 1979, and several features of the plants themselves may encourage herbivory in recently created habitats. These include increased nutrient levels (i.e., soluble nitrogen) in plant tissues (Boardman 1977, McNeill and Southwood 1978, Mattson 1980, reduced plant defenses in many pioneer species (Coley 1983, Lawton andMcNeill 1979), and increased consumption and growth rates of herbivorous insects that feed on plants receiving direct sunlight (White 1978, Scriber andSlansky 1981). The situation is complicated by a number of factors that seem to discourage herbivory, however. For example, increased light levels may be beneÞcial in terms of insect growth rates, but they have also been shown to increase the toughness of leaves and, in some cases, the concentration of defensive compounds (Shure and Wilson 1993).In many forests, canopy gaps created by treefalls, wind damage, and other minor events serve as important centers of plant growth and su...

show abstract

“…We identified bat passes by comparing structure (e.g., frequency modulated and quasi-constant frequency), frequency, and change in octaves per second of unknown bat passes to a library. Our library consisted of 273 bat passes collected from hand-released bats marked with chemiluminescent tags collected throughout the southeastern and Mid-Atlantic United States and known to occur at ASIS (Fenton and Bell 1981;O'Farrell et al 1999;Murray et al 2001;Menzel et al 2002;. We attempted identification of bat passes containing three or more pulses (Johnson et al 2002).…”

Section: Acoustic Monitoringmentioning

confidence: 99%

Monitoring seasonal bat activity on a coastal barrier island in Maryland, USA

Johnson

Gates

Zégre

2010

Environ Monit Assess

View full text Add to dashboard Cite

Research on effects of wind turbines on bats has increased dramatically in recent years because of significant numbers of bats killed by rotating wind turbine blades. Whereas most research has focused on the Midwest and inland portions of eastern North America, bat activity and migration on the Atlantic Coast has largely been unexamined. We used three long-term acoustic monitoring stations to determine seasonal bat activity patterns on the Assateague Island National Seashore, a barrier island off the coast of Maryland, from 2005 to 2006. We recorded five species, including eastern red bats (Lasiurus borealis), big brown bats (Eptesicus fuscus), hoary bats (Lasiurus cinereus), tri-colored bats (Perimyotis subflavus), and silver-haired bats (Lasionycteris noctivagans). Seasonal bat activity (number of bat passes recorded) followed a cosine function and gradually increased beginning in April, peaked in August, and declined gradually until cessation in December. Based on autoregressive models, inter-night bat activity was autocorrelated for lags of seven nights or fewer but varied among acoustic monitoring stations. Higher nightly temperatures and lower wind speeds positively affected bat activity. When autoregressive model predictions were fitted to the observed nightly bat pass totals, model residuals>2 standard deviations from the mean existed only during migration periods, indicating that periodic increases in bat activity could not be accounted for by seasonal trends and weather variables alone. Rather, the additional bat passes were attributable to migrating bats. We conclude that bats, specifically eastern red, hoary, and silver-haired bats, use this barrier island during migration and that this phenomenon may have implications for the development of near and offshore wind energy.

show abstract

Effects of group selection silviculture in bottomland hardwoods on the spatial activity patterns of bats

Cited by 77 publications

References 9 publications

Insectivorous Bats and Silviculture: Balancing Timber Production and Bat Conservation

Insectivorous Bats and Silviculture: Balancing Timber Production and Bat Conservation

Herbivorous Insect Response to Group Selection Cutting in a Southeastern Bottomland Hardwood Forest

Monitoring seasonal bat activity on a coastal barrier island in Maryland, USA

Contact Info

Product

Resources

About