2 edition of Small mammals of the southeastern Amazon and the ecological consequences of selective logging. found in the catalog.
Small mammals of the southeastern Amazon and the ecological consequences of selective logging.
Thomas Daniel Lambert
Written in English
The ecological consequences of the low-intensity selective logging that has occurred over vast areas of the Amazon Basin are often assumed to be minimal; however, few studies have tested this assumption. Additionally, although small mammals play important roles in tropical forests, they have been surveyed in few areas in the Amazon, survey methodologies are poorly developed, and the effects of selective logging on the fauna have not been examined. Thus, this study has three main objectives: (1) document the small mammal fauna at an unsurveyed site in southeastern Amazonia and compare the effectiveness of different trapping methods, (2) examine relationships between small mammal abundances and key habitat and resources variables, and (3) examine the effects of logging on small mammal communities, habitat structure, and seed predation. Small mammals were live-trapped in a variety of habitats, with traps of two types placed at three heights (ground, understory and canopy). Species abundances, habitat structure, resource abundances, and seed predation rates were examined at 300 trap stations in two logged and two unlogged sites. In total, 1,178 individuals of 8 marsupial and 17 rodent species were captured at the site. Including canopy traps, in addition to ground and understory trapping did little to increase the rate of species accumulation, a result attributed to the lack of a well-defined canopy stratum at the site. Analysis of habitat use indicated that many of the species were most abundant in disturbed habitats, in part driven by increased resource abundances. Across all sites, few significant changes were seen as a result of logging, suggesting that the low-levels of harvesting had a minimal impact on forest ecology. However, when examined separately the two logged sites had markedly different responses to logging, indicating that important site differences are mediating logging effects. These results indicate that although the effects of low intensity logging appear to be minimal and localized high degrees of local and regional variability complicate the extrapolation of these results beyond the study system. Indicating that under some conditions logging could greatly impact tropical forests especially if logging intensity are increased.
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|Pagination||xi, 152 leaves :|
|Number of Pages||152|
Dec 22, · By comparison, Borneo’s forest lands that come under logging concessions are safer for similar species. Image by Andrew Tilker. Confirming and adding to related studies. Previous research in Southeast Asia has similarly warned thathunting is a more severe threat than deforestationand thatthe use of snares is driving species to extinction. Jul 24, · However, the large proportions of short step lengths found in all species for both forest types and similar path tortuosity suggest that the main movement strategies of the small mammals were not influenced by logging but comprised generally a response to the heterogeneous habitat as opposed to random movement strategies predicted for Cited by: Conservation of Natural Resources Subject Areas on Research. New road networks in Sumatra are opening up some of the island’s last remaining forests to predatory loggers and hunters. A recent study found 52, kilometers of new logging roads in the Congo Basin (LaPorte et al. ). These are but a small sampling of the new roads and highways penetrating into the world’s last tropical frontiers.
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Vast areas of the Amazon have been subjected to low-intensity selective logging for high value timber species such as mahogany (Swietenia macrophylla). Although the ecological consequences of such logging are often assumed to be minimal, few studies have directly tested this gtbabowling.com by: Effects of selective logging on large mammal populations in a remote indigenous territory in the northern Peruvian Amazon Pedro Mayor 1,2, Pedro Pérez-Peña 3, Mark Bowler 4, Pablo E.
Puertas 2,5, Maire Kirkland 2, Richard Bodmer 2,6Cited by: Small mammals of the southeastern Amazon and the ecological consequences of selective logging. Smithsonian Tropical Research Institute, Barro Colorado Island, Republic of Panamá.
Effects of selective logging on large mammal populations in a remote indigenous territory in the northern Peruvian Amazon Pedro Mayor 1,2, Pedro Pérez-Peña 3, Mark Bowler 4, Pablo E.
Puertas 2,5, Maire Kirkland 2 and Richard Bodmer 2,6 ABSTRACT. We examined the effects of selective timber logging carried out by local indigenous people in.
Effects of Selective Logging on Bat Communities in the Southeastern Amazon. of many tropical forest species to selective logging, although there is also evidence that the majority of species.
Ph.D. Forestry, University of Toronto. Dissertation Title: “Small mammals of the southeastern Amazon and the ecological consequences of selective logging.” Supervisors: Jay R. Malcolm & Barbara L. Zimmerman. M.S. Zoology, University of Wisconsin-Oshkosh.
Thesis Title “Effects of forest Fragmentation on Rodent Community Structure.”. The impact of selective logging on sympatric civet species in Borneo. (a1) Institute of Tropical Biology, Department of Zoology, University of Aberdeen, Aberdeen AB9 2TN, UK.
(a2) c/o Pejabet Pengingpin Kemajuan Rakyat, No. 19, Tingkat Dua Bangunan, Urusatia Kecil, Lahad Datu Cited by: Abstract: Selective logging has been the main cause of disturbance to tropical forests in Southeast Asia, so the extent to which biodiversity is maintained in selectively logged forest is of prime conservation importance.
We compared the butterfly assemblages of Bornean primary rainforest to those of rainforest selectively logged 6 years gtbabowling.com by: Selective logging or partial forest removal is the practice of cutting down a few species of trees while leaving the rest intact and unharmed.
Selective logging is often considered a better alternative to clear cutting in which a large area of a forest is cut down, leaving little behind except wood debris and a deforested landscape. Selective logging in the Brazilian Amazon Rainforest was recently shown in. Selective logging is causing long-term changes to tropical forests in Africa by facilitating the growth of weeds and vines, which reduces plant diversity and diminishes carbon storage, reports a new paper published in the journal Ecological Research.
Effects of selective logging on the microhabitat-use patterns of non-volant small mammals in a Bornean tropical lowland mixed-dipterocarp forest. Nature and Human Activities 8: 1 – Cited by: 9.
Previous studies of the effects of selective logging on seed dispersal have obtained inconsistent results, where the differences are most likely due to the differences in preferences between species. However, the effects of selective logging on the composition and abundance of the seed–dispersing mammalian community, Cited by: 5.
Mar 14, · Lambert TD () Small mammals of the southeastern Amazon and the ecological consequences of selective logging. PhD dissertation, University of Toronto Google Scholar Lambert TD, Malcolm JR, Zimmerman BL () Effects of mahogany (Swietenia macrophylla) logging on small mammal communities, habitat structure, and seed predation in the Cited by: Dr.
Malcolm’s research in the tropics has included studies of: 1) ecological effects of external forest fragmentation (central Amazon), 2) ecological effects of internal forest fragmentation during selective logging (Central African Republic and south-eastern Amazon), 3) ecology of tropical (especially canopy) small mammals, and 4) ecological.
Dec 22, · Selective logging reduces biodiversity, disrupts Amazon ecosystems: study. Reduced-impact logging, also called selective logging, which gained popularity in the s, aims to balance biodiversity impacts with global demand for timber by extracting fewer trees.
Aug 28, · Impacts of Two Different Forest Management Practices on the Abundance of Mammals Effects of selective logging on populations of tropical understory herbs in an Amazonian forest.
Pfeiffer M () Effects of rain forest logging on species richness and assemblage composition of small mammals in Southeast Asia. J Biogeogr – Cited by: 3.
Wildlife Research provides an international forum for the publication of original and significant research and debate on the ecology and management of wild animals in natural and modified habitats. Readers can expect a broad range of high quality, internationally refereed papers that contribute conceptual and practical advances to our knowledge and understanding of wildlife ecology and managementCited by: 5.
Medium spatial resolution satellites such as Landsat (30 m) and SPOT ( m) are usually applied for this since they can in principle detect forest clearings as small as ha.
For example, Landsat 7 ETM þ has been used to quantify impacts of selective logging in the Brazilian Amazon (Asner et al.
Emílio Manabu Higashikawa, Maria Marcela Ortiz Brasil and William Ernest Magnusson, A year study of the effects of selective logging on a stem-less palm (Astrocaryum sociale) in a central-Amazon forest, Forest Ecology and Management, /gtbabowling.com,(), ().Cited by: Jan 15, · The impact of logging and subsequent recovery after logging is predicted to vary depending on specific life history traits of the logged species.
The Eco-gene simulation model was used to evaluate the long-term impacts of selective logging over years on two contrasting Brazilian Amazon tree species, Dipteryx odorata and Jacaranda gtbabowling.com by: gtbabowling.com: Landscape Ecology of Small Mammals (): Gary W.
Barrett: Books. Skip to main content. Try Prime EN Hello, Sign in Account & Lists Sign in Account & Lists Returns & Orders Try Prime Cart. Books. Go Search Hello Select your address. 6 days ago · The study looked at areas in the Brazilian Amazon with varying levels of disturbance from activities like logging or burning.
Disturbance also led to a significant shift towards small-seeded species, which are more likely to be dispersed by smaller animals like birds and bats.
Forest fires and selective logging disproportionately affect. species threatened by logging operations in south-eastern Australia.
Environmental Monitoring and Assessment, 39, Makana, J.R. & Thomas, S.C. () Impacts of selective logging and agricultural clearing on forest structure, floristic composition and diversity, and timber tree regeneration in the Ituri Forest, Democratic Republic of Congo.
Oct 20, · Small mammals of the southeastern Amazon and the ecological consequences of selective logging. Ph.D. dissertation, University of Toronto, Toronto, Ontario, Canada Effects of selective logging on bat communities and tropic structure in southeastern Amazonia, gtbabowling.com by: Aug 24, · We studied relationships with habitat variables and resource abundances for 5 species of marsupials and 9 species of rodents at a site in southeastern Amazonia.
Small mammals were sampled with traps placed both on the ground and in the understory. Eight habitat variables were measured to quantify habitat gtbabowling.com by: Nov 01, · Our results highlight the pervasive ability of forest edges to restructure ecological communities on a global scale.
and selective logging in the Brazilian Amazon. of small mammals Cited by: Oct 10, · Terrestrial wildlife responses to logging and fire in a Bolivian tropical humid forest We compared the abundance and species richness of selected terrestrial wildlife taxa including small mammals, amphibians, reptiles, and terrestrial invertebrates in areas burned by wildfire and then logged and in adjacent undisturbed areas of a tropical humid.
Start studying tropical ecology midterm #2. Learn vocabulary, terms, and more with flashcards, games, and other study tools. 5 species Small, slow, nocturnal, easy to catch why is the southeastern Amazon more prone to fires.
extensive agriculture land use and relative seasonality. Ecological effects of selective logging in a West Malaysian rainforest. University of Cambridge, Cambridge, UK. Johns, A. Recovery of a peninsular Malaysian avifauna following selective timber logging: the first twelve years.
Forktail Johns, A. Bird population persistence in Sabahan logging gtbabowling.com by: Oct 21, · A four-year, comprehensive survey of the Amazon Basin in Brazil reveals that selective logging--the practice of cutting down just one or two tree species in an area- Author: Tracy Staedter.
the decimation of red cockaded woodpeckers at Francis Marion national forest in was due to hurricane Hugo. conservation biologist learned which of the following lessons because of this incident: fire is important for red cockaded woodpeckers, red cockaded woodpeckers need to be listed on the endangered species list, need to manage forest so that they have uneven aged long leaf pine trees.
Cochrane, M. & Schulze, M. Fire as a recurrent event in tropical forests of the eastern Amazon: effects on forest structure, biomass, and species composition. Biotropica 31, 2–16 ( Cited by: Jun 22, · However, such a social licence should not be used as a justification for logging of high conservation value forests or previously unlogged forests, nor undermine the case for strict protection of areas that support highly disturbance‐sensitive species or key ecological processes (see the section below on caveats and knowledge gaps).Cited by: ().
Effects of selective logging on bat communities in the southeastern Amazon. Effects of wildfire of varying severity on benthic stream insect assemblages and emergence.
Entwistle AC () Life-history and reproductive strategies of bats. Fire and bats in the Southeast and mid-Atlantic: more questions than answers. Their combined citations are counted only for the first article.
Merged citations. This "Cited by" count includes citations to the following articles in Scholar. The ones marked * may be different from the article in the profile. Add co-authors Co-authors. Upload PDF. PDF Restore Delete Forever. Sep 27, · We surveyed small mammals on forest islands in Chiew Larn Reservoir in Thailand 5 to 7 and 25 to 26 years after isolation and observed the near-total loss of native small mammals within 5 years from Cited by: Trap efficiency evaluation for small mammals in the southern Amazon Manoel dos SANTOS-FILHO1*, The effectiveness of ecological researches on small mammals strongly depends on trapping techniques to survey communities emergent trees due to intense selective logging in the past.
Microclimates and local distribution of small mammals on the George Reserve, Michigan (Miscellaneous publications, Museum of Zoology, University of Michigan) [William O Pruitt] on gtbabowling.com *FREE* shipping on qualifying gtbabowling.com: William O Pruitt.
Impacts of Intensive Logging on the Trophic Organisation of Ant Communities in a Biodiversity Hotspot Bergsdorf T, Bleher B, et al. () Forest fragmentation and selective logging have inconsistent effects on multiple animal-mediated ecosystem processes in a () Effects of forest use on trophic levels of small mammals: an analysis Cited by: Biomass and diversity of small mammals in Amazonian forest fragments.
JR Malcolm. Effects of selective logging on bat communities in the southeastern Amazon. SL Peters, JR Malcolm, BL Zimmerman. Conservation Biology 20 (5). Logging road network density can influence the degree to which logging impacts biodiversity. For example, the impacts of logging on biodiversity in parts of Southeast Asia has generally been more severe than that in the Amazon, where selective logging typically occurs at a low intensity and roads are usually less dense ; but see).EFFECTS OF SELECTIVE LOGGING ON A THE BRAZILIAN ATLANTIC BIRD COMMUNITY INCPCEPCampinas, SP, Brazil Abstract.
I evaluated the effects of selective logging upon a bird community in the Brazilian Atlantic forest. Two areas m apart were selected for quantitative (point cen- most sensitive ecological groups (with.Evolutionary anachronism is a concept in evolutionary biology, named by Connie C.
Barlow in her book The Ghosts of Evolution (), to refer to attributes of living species that are best explained as a result of having been favorably selected in the past due to coevolution with other biological species that have since become extinct.