Search Results

1 - 10 of 12 items :

  • "species diversity" x
  • Human Biology x
Clear All
Geographic trends in range sizes explain patterns in bird responses to urbanization in Europe

. Bioinformatics , 20, 289–290. Purvis A., Gittleman J.L., Cowlishaw G., & Mace G.M. (2000) Predicting extinction risk in declining species. Proceedings of the Royal Society B: Biological Sciences , 267, 1947–1952. R Core Team (2017) R: A Language and Environment for Statistical Computing.. Rapoport E.H. (1982) Areography: Geografical Strategies of Species. Pergamon Press Oxford, Rohde K. (1996) Rapoport’s Rule is a Local Phenomenon and Cannot Explain Latitudinal Gradients in Species Diversity. Biodiversity Letters , 3, 10. Seto K.C., Guneralp B

Open access
Insights on the role of forest cover and on the changes in forest cover on thirty-five endangered mammal species distributions

, 27(6), pp. 1517–1538. Available at: . Pekin, B.K. & Pijanowski, B.C., 2012. Global land use intensity and the endangerment status of mammal species. Diversity and Distributions , 18(9), pp. 909–918. Available at: . Phillips, S.J., Anderson, R.P. & Schapire, R.E., 2006. Maximum entropy modeling of species geographic distributions. Ecological Modelling , 190(3–4), pp. 231–259. Pimm, S.L. & Raven, P., 2000. Biodiversity: Extinction by numbers. Nature

Open access
Tree diversity in the tropical dry forest of Bannerghatta National Park in Eastern Ghats, Southern India

, India. Biodiversity Conservation, 8, 1533-1554. Bhat, H. (2000) Field Guide to Medicinal Plants of Devarayanadurga Forest. Karnataka Forest Department publishing, Tumkur Division, Karnataka. Champion and Seth’s classification, 1986. Briggs, J. (2003) The biogeographic and tectonic history of India. Journal of Biogeography, 30, 381-388. Cannon, C.H., Peart, D.R. & Leighton, M. (1998) Tree species diversity in commercially logged bornean rainforest. Science, 281, 1366-1368. Champion, H.G. & Seth, S.K. (1986

Open access
Tree Species Composition and Forest Stratification along the Gradients in the Dry Deciduous Forests of Godavari Valley, Telangana, India

climate of a habitat through floristic life-form spectra, a case study of Warangal north forest division, Telangana, India. Journal of Natural Sciences, 2(1), 77-93. Raju, V.S., Reddy, C.S. & Suthari, S. (2010) Flowering plant diversity and endemism in India: an overview. ANU Journal of Natural Sciences, 2(1), 27-39. Reddy, C.S. & Ugle, P. (2008) Tree species diversity and distribution patterns in tropical forest of Eastern Ghats, India: a case study. Life Science Journal, 5(4), 87-93. Shannon, C.E. & Weiner, W. (1963) The

Open access
Organic amendment increases arbuscular mycorrhizal fungal diversity in primary coastal dunes

: pp. 129-138. Barvah, T.C. & Barthakur, H.P. (1997) A Textbook of Soil Analysis. New Delhi: Vikas Pub. Ltd. Bever, J.D., Morton, J.B., Antonovics, J. & Schultz, P.A. (1996) Host-dependent sporulation and species diversity of arbuscular mycorrhizal fungi in a mown grassland. J. Ecol., 84, 71-82. Bever, J.D., Schultz, P.A., Pringle, A. &Morton, J.B. (2001) Arbuscular mycorrhizal fungi: more diverse than meets the eye, and the ecological tale of why. BioScience, 51, 923-931. Brady, N.C. (1974) 8th edn. The

Open access
Trends of phanerophyte encroacher species along an aridity gradient on Kalahari sands, central Namibia


Poor rangeland management, especially overstocking and under-burning coupled with climate change on southern African savannas, have brought about a serious ecological problem of bush encroachment. Bush encroachment leads to many ecological implications such as extirpation or extinction of plant species and a colonisation by opportunistic species leading to unwanted changes in plant species composition, structure and loss of species diversity. Furthermore, bush encroachment has a negative impact on the country’s progress in terms of conservation efforts, economic stability and livelihood. Namibian livestock ranchers forego an estimated N$ 700 million loss yearly linked to bush encroachment. Studies focusing on particular bush encroacher species enable the devise of ecologically sound management strategies by land manager, farmers and scientists for the prevention and control of bush encroachment. Therefore, this study was undertaken to determine the main encroacher species and their relationship to the environmental factors along an aridity gradient on Kalahari sands in central Namibia. Results disclosed that Acacia erioloba E.Mey., Acacia mellifera (Vahl) Benth. ssp. dentines (Burch.) Brenan, Combretum collinum Fresen., Terminalia sericea Burch. Ex DC., Grewia spp., Bauhinia petersiana Bolle ssp. macrantha (Oliv.) Brummitt & J.H. Ross were the main encroacher species, and mean annual rainfall was the main environmental factor influencing their distribution. Nanophanerophyte from different encroacher species were recorded mainly from 400 mm to 500 mm mean annual rainfall, mesophanerophyte recorded from 280 mm to 450 mm, while microphanerophyte were widely distributed over the rainfall gradient. Bush encroachment was recorded at 440 mm mainly due to the poor rangeland management. Information from this study should be used as a baseline for conservation and restoration attempts towards savanna rangelands.

Open access
To what degree are philosophy and the ecological niche concept necessary in the ecological theory and conservation?

-432. Rescher, N. (2000) Process Philosophy - A Survey of Basic Issues. University of Pittsburgh Press, Pittsburgh. Reiners W.A. & Lockwood, J.A. (2010) Philosophical Foundations for the Practice of Ecology. Cambridge University Press, Cambridge, UK. Richardson, D.M. & Whittaker, J.R. (2010) Conservation biogeography-foundations, concepts and challenges. Diversity and Distributions, 16, 313-320. Rickleffs, R.E. (2012) Naturalists, Natural History, and The Nature of Species Diversity. American Naturalist, 179, 423

Open access
Is new spread of the European beaver in Pannonian basin an evidence of the species recovery?

. & Cieloszczyk, P. (2011) The impact of beaversʼ (Castor fiber L.) lodges on vascular plant species diversity in forest landscape. Pol. J. Ecol., 59(1), 63–73. Rurek, M. (2013) Lokalne zmiany środowiska przyrodniczego wywołane działalnością Bobra Europejskiego (Castor fiber L. w okolicy Trzebcin (powiat tucholski). J. Health Sci., 3(15), 119–127. (in Polish) Rurek, M., Krupa, A., Hojan, M. & Giętkowski, T. (2013) Wpływ działalności bobrów na rzeźbę małych dolin na przykładzie doliny Gajdówki, południowe Bory Tucholskie, Polska. J. Health- Sci., 3(15), 257–266. (in Polish

Open access
Alien shades of grey: new occurrences and relevant spread of Sciurus carolinensis in Italy

-291. Colautti, R.I. & MacIsaac, H.J. (2004) A neutral terminology to define ‘invasive’ species. Diversity and Distribution, 10, 135-141. Dagnall, J.L., Duckett, J.G. & Gurnell, J. (1995) A simple negative staining technique for the identification of mammal hairs. Journal of Zoology, London, 237, 670-675. Debrot, S., Fivaz, G., Mermod, C. & Weber, J.M. (1982) Atlas des pois de mammifères d’Europe. Institut de Zoologie de l’Université de Neuchàtel, Paris, France. Duncan, R.P., Blackburn, T.M. & Sol, D. (2003) The ecology of bird introductions. Annual Review of

Open access
Urbanization and species occupancy frequency distribution patterns in core zone areas of European towns

, 281, 20133330. Bibby, J.C. (2000) Bird census techniques. Elsevier. Blair, R.B. (1996) Land use and avian species diversity along an urban gradient. Ecological Applications, 6, 506–519. Blair, R.B. (2001) Creating a homogenous avifauna. In J.M. Marzluff, J.M. Bowman & Donell, M. (Eds.), Avian Ecology and Conservation is an Urbanizing World (pp. 459-486). Boston: Kluwer Academic Press. Bonier, F., Martin, P.R. & Wingfield, J.C. (2007) Urban birds have a broader environmental tolerance. Biology Letters, 3, 670–673. Brown, J.H. (1984) On the relationship between

Open access