Results 11 to 20 of about 753,387 (250)

Assessing the effects of different management activities on the conservation of endangered Indo-Pacific humpback dolphin

Frontiers in Marine Science, 2023
Predictions of population viability can provide valid information for guiding the management and conservation of species. However, such studies are rarely conducted on cetaceans due to limited basic data.
Yi Lu, Haojie Zhuo, Xinrong Xu, Bingyao Chen, Guang Yang, Guang Yang   +5 more
doaj   +1 more source

Ecological importance of lepidopteran defoliators on eucalyptus plantations based in faunistic and natural enemy analyses [PDF]

Brazilian Journal of Biology, 2023
Areas planted with Eucalyptus urophylla S.T. Blake variety platyphylla F. Muell. (Myrtaceae) expand annually in most regions of Brazil. Many lepidopteran species defoliate this plant, but with damage varying per species.
T. C. Ghiotto, M. C. Barbosa, J. C. Guerreiro, E. P. Prado, M. V. Masson, W. S. Tavares, C. F. Wilcken, J. C. Zanuncio, P. J. Ferreira-Filho   +8 more
doaj   +1 more source

Regulation of dynamics and densities of whitefly Bemisia tabaci by agricultural landscapes in south China

Royal Society Open Science, 2022
Agricultural landscape patterns can affect the population dynamics of pest insects. We selected four landscapes (flower field, mountain, river and urban) based on principal components analysis in Yunnan Province, south China.
Shaowu Yang, Wenjun Dou, Mingjiang Li, Xingxing Li, Zhengxiong Jiang, Guohua Chen, Xiaoming Zhang   +6 more
doaj   +1 more source

Contribution to the knowledge of Clethrionomys glareolus populations in forests of managed landscape in Southern Moravia (Czech Republic)

Journal of Forest Science, 2007
In intensively managed landscape, the dynamics of the bank vole (Clethrionomys glareolus, Cg) populations was studied in three types of forest complexes which differed in food supply.
J. Suchomel
doaj   +1 more source

A New Pest Species Delia platura Meigen, (Diptera: Anthomyiidae) on Garlic (Allium sativum L., Alliaceae) Area in Kastamonu Province of Turkey

Journal of Agricultural Sciences, 2020
Garlic (Allium sativum L., Alliaceae) is consumed at all stages from fresh to dry in Turkey. Major harmful factors, pests for example, bring about a significant loss in garlic production.
Pervin Erdoğan
doaj   +1 more source

Human population dynamics

Annals of Human Biology, 2001
Time-series analysis of parish register series can be used to study human population dynamics at three different levels: (i) The metapopulation of preindustrial rural England. A short wavelength, exogenous oscillation in the burials series of 404 parishes can be detected which, it is suggested, was driven by a cycle of malnutrition associated with ...
Duncan, S, Duncan, C, Scott, S
openaire   +2 more sources

Age determination and growth in the Tench Tinca tinca (L.) in Lake Jorkjenn, southern Norway

Fauna Norvegica, 1985
The age and growth of tench Tinca tinca (L.) collected from Lake Jorkjenn, southern Norway was investigated. Otoliths and opercular bones were found more suitable for age determination than scales.
Jan Henning L'Abee-Lund
doaj   +1 more source

Recent Population Dynamics of Japanese Encephalitis Virus

Viruses, 2023
Japanese encephalitis virus (JEV) causes acute viral encephalitis in humans and reproductive disorders in pigs. JEV emerged during the 1870s in Japan, and since that time, JEV has been transmitted exclusively throughout Asia, according to known reporting
Jinpeng Xu, Abdul Wahaab, Sawar Khan, Mohsin Nawaz, Muhammad Naveed Anwar, Ke Liu, Jianchao Wei, Muddassar Hameed, Zhiyong Ma   +8 more
doaj   +1 more source

Duration and reliability of placental scars in the Norwegian lemming Lemmus lemmus (L.)

Fauna Norvegica, 1988
The development of placental scars and the correlation between the number of scars and the number of young born, was studied in Norwegian lemmings Lemmus lemmus (L.) from a laboratory colony.
Anders Grimnes, Arne Semb-Johansson
doaj   +1 more source

Evaluation of Trichogramma cacaeciae (Hymenoptera: Trichogrammatidae) and Blattisocius mali (Mesostigmata: Blattisociidae) in the Post-Harvest Biological Control of the Potato Tuber Moth (Lepidoptera: Gelechiidae): Use of Sigmoid Functions

Agriculture, 2022
The potato tuber moth (PTM), Phthorimaea operculella, is the main potato pest in the world, having managed to adapt to a wide range of climatic conditions, and causing damage to stored tubers.
Yohan Solano-Rojas, Juan R. Gallego, Manuel Gamez, Jozsef Garay, Joaquin Hernandez, Tomas Cabello   +5 more
doaj   +1 more source