Search results: 1,498 results (approx.)

1. Future forests and indicator-species population models.

In this paper, we provide an overview of a project that we initiated to explore the utility of spatially-explicit metapopulation models linked to dynamic landscape models as a way of incorporating biological indicators into sustainable forest management. We developed models for three indicator...

Author(s) : Venier, L. A.; Pearce, J. L.; Wintle, B. A.; Bekessy, S. A.

Publisher : Canadian Institute of Forestry, Ottawa, Canada

Journal article : Forestry Chronicle 2007 Vol.83 No.1 pp.36-40 ref.20

2. Bioluminescence inhibition assays for toxicity screening of wood extractives and biocides in paper mill process waters.

The risk associated with wood extractives, biocides, and other additives in pulp and paper mill effluents was evaluated by performing a characterization of process waters and effluents in terms of toxicity and chemical analysis. The individual toxicity of 10 resin acids, two unsaturated fatty...

Author(s) : Rigol, A.; Latorre, A.; Lacorte, S.; Barceló, D.

Publisher : Society of Environmental Toxicology and Chemistry (SETAC), Pensacola, USA

Journal article : Environmental Toxicology and Chemistry 2004 Vol.23 No.2 pp.339-347 ref.39

3. Deviation and fraud in biological sciences.

Foreign Title :Devijacije u biološkim znanostima.

Author(s) : Švob, T.

Journal article : Veterinarska Stanica 1997 Vol.28 No.1 pp.9-15 ref.12

5. Plant-parasitic nematodes associated with root and tuber crops in Uganda.

In a nematode survey of 8 commonly grown root and tuber crops, i.e. cassava (Manihot esculenta), sweet potato (Ipomoea batatas), potato (Solanum tuberosum), yam (Dioscorea spp.), tannia (Xanthosoma spp.), taro (Colocasia esculenta), carrot (Daucus carota) and turmeric (Curcuma domestica [Curcuma...

Author(s) : Coyne, D. L.; Talwana, H. A. L.; Maslen, N. R.

Publisher : Editorial Team of African Plant Protection, Arcadia, South Africa

Journal article : African Plant Protection 2003 Vol.9 No.2 pp.87-98 ref.30

6. Seasonal changes in the intensity of adult diapause in a parasitoid wasp, Ooencyrtus nezarae Ishii (Hymenoptera: Encyrtidae).

Eggs of Riptortus clavatus parasitized by Ooencyrtus nezarae were placed in an outdoor cage in Osaka City, Japan, from early September to late October 1995 at intervals of about 10 days. The female adults of O. nezarae emerging from these hosts were transferred to 25°C and 16L-8D at intervals of...

Author(s) : Teraoka, T.; Numata, H.

Publisher : Japanese Society of Applied Entomology and Zoology, Tokyo, Japan

Journal article : Applied Entomology and Zoology 2000 Vol.35 No.3 pp.353-356 ref.13

7. Acoustic signals, ecological features, and reproductive isolation of grasshoppers of the genus Dociostaurus (Orthoptera, Acrididae) in semidesert.

Acoustic signals, acoustic behaviour, and some ecological features were investigated in 5 species of the genus Dociostaurus from various localities of the Daghestan, Volgograd, and Astrakhan regions of Russia. The calling songs of D. brevicollis, D. tartarus, D. kraussi, D. albicornis, and D....

Author(s) : Savitskii, V. Yu.

Publisher : Nauka, Moscow, Moscow, Russia

Journal article : Zoologicheskiĭ Zhurnal 2000 Vol.79 No.10 pp.1168-1184 ref.21

9. Environmental biology.

This book provides an introduction to the core elements of biology and the biosphere. Considerations on the fundamentals of living organisms and their organisation and distribution lead to increasingly complex components, namely individuals, populations, communities and ecosystems. The key...

Author(s) : Jones, A. M.

Publisher : Routledge, London, UK

Book : Environmental biology. 1997 pp.viii + 197 pp.

10. A morphological comparison of alates between monogynous and polygynous colonies of Myrmica kotokui in northernmost Japan.

Social structure and sexual size of two populations of Myrmica kotokui were compared. Most of the colonies were polygynous in one population and monogynous in the other. Mean body size of the queens was larger in the monogynous population than in the polygynous population. Although the polygynous...

Author(s) : Kikuchi, T.; Higashi, S.; Murakami, T.

Journal article : Insectes Sociaux 1999 Vol.46 No.3 pp.250-255 ref.23

11. Mammary gland expression of mouse mammary tumor virus is regulated by a novel element in the long terminal repeat.

Mouse mammary tumour virus (MMTV) infects both lymphoid tissue and lactating mammary gland during its infectious cycle, but some endogenous MMTV are transcribed only in lymphoid cells. A lymphoid cell-specific endogenous MMTV was found, which was converted to a milk-borne, infectious virus through...

Author(s) : Qin Wei; Golovkina, T. V.; Peng Tao; Nepomnaschy, I.; Buggiano, V.; Piazzon, I.; Ross, S. R.

Journal article : Journal of Virology 1999 Vol.73 No.1 pp.368-376 ref.62

12. Distribution of edaphic-endemic butterflies in the Sierra Nevada of California.

Five edaphically-restricted or -endemic butterflies (Mitoura muiri, Erynnis brizo lacustra, Hesperia lindseyi, H. comma, H. columbia), mostly associated with serpentine, were shown to be distributed in the western foothills of the Sierra Nevada, California, USA, in addition to their previously...

Author(s) : Gervais, B. R.; Shapiro, A. M.

Journal article : Global Ecology and Biogeography 1999 Vol.8 No.2 pp.151-162 ref.25

13. Hermaphroditism and gonochorism. A new hypothesis on the evolution of sexuality in Crustacea.

Most crustaceans are gonochoristic, but hermaphroditism occurs in primitive classes, as well as in different orders of higher Crustacea. Though studies have been carried out in plants and animals on the advantages of these 2 types of sexuality, it is not known how hermaphroditism can change into...

Author(s) : Juchault, P.

Journal article : Comptes Rendus de l'Académie des Sciences. Série III, Sciences de la Vie 1999 Vol.322 No.5 pp.423-427 ref.33

14. Reproductive biology of a marine teleost, thin-lipped grey mullet, Liza ramada R. with special reference to oogenesis.

The process of oogenesis was studied in Liza ramada from coastal waters off the Bristol channel, UK. Six stages of oocyte development were definable on the basis of changes in cytoplasmic inclusions. Vitellogenesis commences with appearance of lipid yolk droplets followed by protein yolk granules....

Author(s) : Abbasi, A. R.

Journal article : Pakistan Journal of Zoology 1999 Vol.31 No.3 pp.249-254 ref.31

15. Observations on Nabis pseudoferus pseudoferus Remane and N. occidentalis Rieger, comparison with N. punctatus Costa (Rhynchota, Nabidae).

Morphological description of the adults and nymphs of Nabis pseudoferus pseudoferus and N. occidentalis, together with observations on the biology and distribution of the species are reported. A comparison is made between the preimaginal stages of these two species with N. punctatus.

Foreign Title :Observations sur Nabis pseudoferus pseudoferus Remane et N. occidentalis Rieger, comparaison avec N. punctatus Costa (Rhynchota, Nabidae).

Author(s) : Chiappini, E.; Reguzzi, M. C.

Journal article : Bulletin de la Société Entomologique de France 1999 Vol.104 No.1 pp.67-76 ref.31

16. An individual-based model for dispersive spiders in agroecosystems: simulations of the effects of landscape structure.

A general individual-based model of spiders in agricultural land was constructed. The populations of spiders were simulated on landscapes which were defined from a set of landscape descriptors based on a Danish agricultural landscape. These descriptors gave the types of habitats present in the...

Author(s) : Topping, C. J.

Conference paper; Journal article : Journal of Arachnology 1999 Vol.27 No.1 pp.378-386 ref.19

17. Record of the social parasitic ant Teleutomyrmex schneideri in Switzerland.

50 years after its first detection, the extremely rare parasitic ant species Teleutomyrmex schneideri has been recorded again close to the Simplon Pass. Its biology and distribution are discussed.

Foreign Title :Wiederfund der sozialparasitischen Ameise Teleutomyrmex schneideri in der Schweiz.

Author(s) : Buschinger, A.

Journal article : Mitteilungen der Schweizerischen Entomologischen Gesellschaft 1999 Vol.72 No.3/4 pp.277-279 ref.10

18. Reproduction and abundance of house shrew (Suncus murinus) in villages and farm houses of central Punjab (Pakistan).

The house shrew (Suncus murinus) infesting villages and farm houses in central Punjab (Pakistan) reproduced mainly during the spring and summer seasons. The prevalence of pregnancy during these seasons was 60% and 71%, respectively, as compared to 4 and 0% during the autumn and winter seasons. The...

Author(s) : Mushtaq-Ul-Hassan, M.; Mahmood-Ul-Hassan, M.; Beg, M. A.; Khan, A. A.

Journal article : Pakistan Journal of Zoology 1999 Vol.31 No.3 pp.297-299

19. Sex discrimination and sex ratio manipulation in social Hymenoptera.

This review considers sex ratio and its manipulation in social insects. Determination of the sex ratio, the role of queens and workers in the regulation of the sex ratio and sex investment are considered. The process is discussed at both the colony and individual levels.

Author(s) : Sasaki, K.

Journal article : Japanese Journal of Ecology 1999 Vol.49 No.2 pp.161-166 ref.39

20. Phenomenological theory of mortality evolution: its singularities, universality, and superuniversality.

The probability to survive to the age x universally increases with the mean lifespan x¯. For species as remote as humans and [Drosophila] flies, for a given x the rate of its evolution with x¯ is constant, except for the narrow vicinity of a certain x¯ = x* (which equals 75 years for humans and 32...

Author(s) : Azbel, M. Y.

Journal article : Proceedings of the National Academy of Sciences of the United States of America 1999 Vol.96 No.6 pp.3303-3307 ref.50

21. Structure and dynamics of fungal populations.

This book covers the population biology of fungi and includes detailed coverage of all major taxonomic groups for which information is available. Chapters included are: a brief introduction to fungi; defining individual fungal boundaries; defining species in the fungi; the evolution of sex and...

Publisher : Kluwer Academic Publishers, Dordrecht, Netherlands

Book : Structure and dynamics of fungal populations. 1999 pp.xii + 348 pp.

22. Elsevier's dictionary of the genera of life.

This dictionary is an alphabetical compilation of the Latin names, from Abelia to Zymomonas, of over 5280 genera of animals, plants, bacteria, fungi and other forms of life (as we know it) on Earth. Each entry describes the genus and gives an example of at least one species present in that genus....

Publisher : Elsevier Science Publishers, Amsterdam, Netherlands

Miscellaneous : Elsevier's dictionary of the genera of life. 1999 pp.556 pp.

23. Effects of population size on seed production and germinability in an endangered, fragmented grassland plant.

Seed set was studied in 8 populations of the endangered species Rutidosis leptorrhynchoides differing in population size from 13 to over 5000 flowering plants in Victoria, Australia. Seed set was associated with population size in 2 out of 3 years, with large populations producing more seeds per...

Author(s) : Morgan, J. W.

Journal article : Conservation Biology 1999 Vol.13 No.2 pp.266-273 ref.37

24. Redescription of species Trichogramma evanescens Westwood (Hymenoptera, Trichogrammatidae).

Morphological characteristics of Trichogramma evanescens are described.

Author(s) : Chiriac, I.; Shchiopu, L.

Journal article : Buletinul Academiei de Științe a Republicii Moldova. Științe Biologice și Chimice 1996 No.No. 2 pp.31-34 ref.2

25. On the anatomy of consciousness in domestic animals. Opening paper of the 20th Congress of the EVVA in Zürich in memory of Prof. Seiferle.

Foreign Title :Zur Anatomies des Bewusstseins der Haustiere. Eröffnungsvortrag zum 20. Kongress der EVVA in Zürich zum Gedenken an Eugen Seiferle.

Author(s) : Preuss, F.

Journal article : Anatomia Histologia Embryologia 1996 Vol.25 No.1 pp.71-74 ref.6