Download or read book Distribution Patterns and Habitat Use by Bats in Relation to Landscape Heterogeneity and Consequences for Conservation written by Johnny De Jong and published by . This book was released on 1994 with total page 142 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Bats in the Anthropocene Conservation of Bats in a Changing World written by Christian C. Voigt and published by Springer. This book was released on 2015-12-07 with total page 601 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book focuses on central themes related to the conservation of bats. It details their response to land-use change and management practices, intensified urbanization and roost disturbance and loss. Increasing interactions between humans and bats as a result of hunting, disease relationships, occupation of human dwellings, and conflict over fruit crops are explored in depth. Finally, contributors highlight the roles that taxonomy, conservation networks and conservation psychology have to play in conserving this imperilled but vital taxon. With over 1300 species, bats are the second largest order of mammals, yet as the Anthropocene dawns, bat populations around the world are in decline. Greater understanding of the anthropogenic drivers of this decline and exploration of possible mitigation measures are urgently needed if we are to retain global bat diversity in the coming decades. This book brings together teams of international experts to provide a global review of current understanding and recommend directions for future research and mitigation.
Download or read book Canadian Journal of Forest Research written by and published by . This book was released on 2003 with total page 756 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Range wide Assessment of Land Use and Cover Change Near Indiana Bat Hibernacula written by Michael G. Just and published by . This book was released on 2011 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: It is estimated that 95% of all federally endangered Indiana bats (Myotis sodalis) hibernate in 71 hibernacula in the eastern US. Given the species0́9 high site fidelity, seasonally heightened population densities, and the limited availability of suitable overwintering sites, land use and cover change (LUCC) near hibernacula is expected to affect wintering populations. The landscapes surrounding hibernacula not only provide critical roosting and foraging habitat but also support the highly specific microclimates Indiana bats need for successful hibernation. To date, the assumption has been that the greater the amount of forest cover, the better the habitat for Indiana bats. The extent to which Indiana bat hibernacula may be threatened by LUCC has not been previously investigated. Land adjacent to most hibernacula does not have land use or conservation protections; consequently, it is important that LUCC near hibernacula is evaluated to assess and prevent harmful impacts to wintering Indiana bat populations. Landscape characterizations included measurements of land cover composition and spatial configurations, as well as climate and insolation variables. I modeled potential future LUCC through 2016 near 225 Indiana bat hibernacula using an empirically derived, stochastic projection model that combines Markov chain analysis, multi-criteria evaluation, and cellular automata. Drivers of the model included biophysical and socioeconomic variables. Characterization and modeling were performed at two spatial extents and at several management groupings chosen for their relevance to the species0́9 biology and conservation. Two spatial extents approximating areas expected to be used by bats were considered, owing to the importance of scale in species habitat use. The change in the forest proportion of the landscape ranged from 7.38 - 98.99% (mean 74.42% ± 2.31% [90% CI]) in 1992, 4.91 - 95.142% (66.99% ± 2.12%) in 2001, and a projected 3.33 - 78.09% (47.75% ± 2.15%) in 2016. This change represents a 26.67% decrease in the mean proportion of forest surrounding hibernacula projected over 24 years. The mean proportion of developed land was projected to increase by 7.82% by 2016. The extent to which these rates of change in land use and cover will support conservation of the Indiana bat is an important question. LUCC has and will likely trend towards more-isolated forest patches and, in some cases, extremely heterogeneous landscapes. Results indicate that bat populations might best be supported by a certain degree and type of landscape heterogeneity rather than by maximum contiguous forest cover. The major findings of this research are: 1.) Hibernacula with greatest Indiana bat population counts were surrounded by landscapes that were more heterogeneous than hibernacula with lower counts. Bat populations at hibernacula were not highly correlated with forest cover alone as had been predicted. 2.) Privately-owned hibernacula had more heterogeneous landscapes than federally-owned hibernacula. 3.) Landscapes describing the smaller, more proximal expected use area near hibernacula were less heterogeneous than those for the larger expected use area. 4.) Forest cover declined and is projected to decline further in every landscape surrounding hibernacula in this study. 5.) There was no clear pattern among landscape variables and geographic or management groupings. 6.) There was a linear relationship between Indiana bat population counts and landscape variables, including insolation, edge density, and proportion of forest cover.
Download or read book Canadian Journal of Zoology written by and published by . This book was released on 2014-05 with total page 420 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book BAT DIVERSITY ACTIVITY AND HABITAT USE IN A MIXED DISTURBANCE LANDSCAPE written by Jennifer Windom Hollen and published by . This book was released on 2017 with total page 121 pages. Available in PDF, EPUB and Kindle. Book excerpt: Bat species face multiple threats. One such threat, white-nose syndrome (WNS) has drastically reduced many bat populations. Also, habitat loss and fragmentation often forces bats to concentrate in remnant natural areas, or utilize habitats that are not as suitable. Both of these threats, while threaten bats in a general sense, also affect species differentially. The Oak Openings Region of Northwest Ohio is a biodiversity hotspot with a landscape composed of remnant natural areas within a matrix of agriculture and urban areas. This area, which provides crucial summer foraging habitat, has experienced declines in bat activity, shifts in bat assemblages, and some in diversity, in recent years, especially since WNS introduction. To study bats in this diverse landscape, we sampled bats acoustically from May - August 2016. We sampled mobile transects along roads along with stationary sites within the Oak Openings Preserve within the region. We identified calls to species and ran analyses investigating total bat activity, species-specific activity and presence, and bat diversity compared to. We compared bats to environmental, vegetation, road, and landcover parameters. Our results show that certain parameters influence bats as a whole, while others only affect one or a few species. We found that savanna stationary sites had more species-specific activity and bat diversity than forested sites (Rank Sums, p
Download or read book BAT BIOLOGY CONSERVATION written by KUNZ THOMAS H and published by Smithsonian Institution Scholarly Press. This book was released on 1998-10-17 with total page 392 pages. Available in PDF, EPUB and Kindle. Book excerpt: Presenting the most recent research and synthetic reviews of more than thirty-five of the world's leading authorities on bats, Bat Biology and Conservation discusses bat phylogeny and evolution, functional morphology, echolocation, and conservation biology. It is an essential reference not only for bat scientists but also for conservation biologists and those working with other mammalian groups.
Download or read book Nevada Bat Conservation written by Matthew E. Rahn and published by . This book was released on 2000 with total page 250 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Acta Theriologica written by and published by . This book was released on 2001 with total page 366 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Phyllostomid Bats written by Theodore H Fleming and published by University of Chicago Press. This book was released on 2020-10-05 with total page 489 pages. Available in PDF, EPUB and Kindle. Book excerpt: With more than two hundred species distributed from California through Texas and across most of mainland Mexico, Central and South America, and islands in the Caribbean Sea, the Phyllostomidae bat family (American leaf-nosed bats) is one of the world’s most diverse mammalian families. From an insectivorous ancestor, species living today, over about 30 million years, have evolved a hyper-diverse range of diets, from blood or small vertebrates, to consuming nectar, pollen, and fruit. Phyllostomid plant-visiting species are responsible for pollinating more than five hundred species of neotropical shrubs, trees, vines, and epiphytes—many of which are economically and ecologically important—and they also disperse the seeds of at least another five hundred plant species. Fruit-eating and seed-dispersing members of this family thus play a crucial role in the regeneration of neotropical forests, and the fruit eaters are among the most abundant mammals in these habitats. Coauthored by leading experts in the field and synthesizing the latest advances in molecular biology and ecological methods, Phyllostomid Bats is the first overview in more than forty years of the evolution of the many morphological, behavioral, physiological, and ecological adaptations in this family. Featuring abundant illustrations as well as details on the current conservation status of phyllostomid species, it is both a comprehensive reference for these ecologically vital creatures and a fascinating exploration of the evolutionary process of adaptive radiation.
Download or read book Bats in Forests written by Michael J. Lacki and published by JHU Press. This book was released on 2007-05-11 with total page 350 pages. Available in PDF, EPUB and Kindle. Book excerpt: Although bats are often thought of as cave dwellers, many species depend on forests for all or part of the year. Of the 45 species of bats in North America, more than half depend on forests, using the bark of trees, tree cavities, or canopy foliage as roosting sites. Over the past two decades it has become increasingly clear that bat conservation and management are strongly linked to the health of forests within their range. Initially driven by concern for endangered species—the Indiana bat, for example—forest ecologists, timber managers, government agencies, and conservation organizations have been altering management plans and silvicultural practices to better accommodate bat species. Bats in Forests presents the work of a variety of experts who address many aspects of the ecology and conservation of bats. The chapter authors describe bat behavior, including the selection of roosts, foraging patterns, and seasonal migration as they relate to forests. They also discuss forest management and its influence on bat habitat. Both public lands and privately owned forests are considered, as well as techniques for monitoring bat populations and activity. The important role bats play in the ecology of forests—from control of insects to nutrient recycling—is revealed by a number of authors. Bat ecologists, bat conservationists, forest ecologists, and forest managers will find in this book an indispensable synthesis of the topics that concern them.
Download or read book Epiphytic Macrolichens and Sedentary Birds written by Helen Uliczka and published by . This book was released on 1999 with total page 82 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Conservation Assessments for Five Forest Bat Species in the Eastern United States written by Frank Richard Thompson and published by . This book was released on 2006 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Boreal Ecosystems and Landscapes written by Lennart Hansson and published by . This book was released on 1997 with total page 212 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Conserving Connecticut s Natural History written by Christopher D. Wisniewski and published by . This book was released on 2018 with total page 88 pages. Available in PDF, EPUB and Kindle. Book excerpt: Community ecology investigates questions related to the density, growth/decline and movements of species over time in given geographical regions. This study investigated similar questions regarding communities of endemic bat species in Connecticut. White-nose syndrome (WNS) has recently killed millions of bats in New England, yet few large-scale conservation efforts have occurred in Connecticut and few data have been published on the status of Connecticut bats post-WNS. This study aimed to: 1) survey bats persisting in WNS regions to document whether changes have occurred in species biodiversity, richness, distribution and habitat use; and 2) measure seasonality effects from summer through pre-hibernal months. Bat presence and activity were recorded using bat detectors set in grassland and forested habitats, near bodies of water and near anthropormorphic and geologic structures across Connecticut. Bioacoustics data have been analyzed by using Sonobat© software. Combined, these data show that bat activity varies significantly across habitat type (p = 0.02) and over seasons (p = 0.05). Additionally, these data provide insight regarding relationships between individual species, and clumped species groups, with habitat types and across seasons. Ultimately, these data show how bat communities have changed over time in a post-WNS environment. Combined, these data can help drive future wildlife conservation, outreach, education and management practices.
