Results 41 to 50 of about 1,041 (144)

Evidence for adaptive explanations of semelparity in animals

Biological Reviews, EarlyView.
ABSTRACT Semelparity, the reproductive strategy of reproducing once, is widespread but uncommon in animals. Classes of models to explain the evolution of semelparity are based either on age structure and mortality schedules – demographic models in which high post‐reproductive mortality risk favours high reproductive effort and semelparity results from ...
Diana O. Fisher, Roberto Salguero‐Gómez   +1 more
wiley   +1 more source

The in-vitro antimicrobial activity of some medicinal plants against β-lactam-resistant bacteria

Journal of Infection in Developing Countries, 2009
Background: In effort to identify novel bacterial agents, this study was initiated to evaluate the antimicrobial properties of 17 crude extracts from 12 medicinal plants against beta-lactam-resistant bacteria. Methodology: The antimicrobial activities
Joseph Gangoue-Pieboji, Noelly Eze, Arnaud Ngongang Djintchui, Bathélémy Ngameni, Nolé Tsabang, Dieudonné Emmanuel Pegnyemb, Lucie Biyiti, Pierre Ngassam, Sinata Koulla-Shiro, Moreno Galleni   +9 more
doaj   +1 more source

Nesting ecology of an ice‐associated seabird, Kittlitz's murrelet, at the northern edge of its range

Wildlife Society Bulletin, EarlyView.
We studied the Kittlitz's murrelet, an ice‐associated seabird of conservation concern, at the northern edge of its range. Over a 2‐year period, we estimated nest density and success at 2 sites, captured and telemetered nesting murrelets, and tested the use of a thermal camera to improve nest detection.
Michelle L. Kissling, Molly C. McDevitt, Jonathan J. Felis, William Crisci, Zachary Pohlen, Ryan Ongtowasruk, Daniel L. Perret, Paul M. Lukacs, James A. Johnson, Metrona Mazonna   +9 more
wiley   +1 more source

Lignans from the leaves of Mallotus paxii

Guangxi Zhiwu
Mallotus paxii is a Euphorbiaceae plant belonging to the genus Mallotus Lour. This genus mainly distributes in tropical and subtropical Asia, and there are about 140 species in the world.
HOU Ping, REN Chenyang, HUANG Yan, PAN Liwei, PENG Liuting, GAN Chunqiu, LI Jun   +6 more
doaj   +1 more source

Life history attributes influencing metabolic variation in an estuarine fish

Functional Ecology, EarlyView.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Considering that energy availability and oxygen transport potential are limited in supplying metabolic requirements, all animals face trade‐offs between competing metabolic demands.
Elizabeth C. Hoots, Luis L. Kuchenmüller, Michael R. Skeeles, Timothy D. Clark   +3 more
wiley   +1 more source

Holocene shoreline displacement and the impact of the Storegga tsunami on Hinnøya, northern Norway

Boreas, EarlyView.
The Holocene relative sea‐level (RSL) history of Norway's largest island, Hinnøya, has been investigated in detail, using sediment records from 25 isolation basins. The sediments were analysed for macrofossil and phytoplankton content, which served as the basis for identifying marine–lacustrine transitions, that is isolation contacts. Terrestrial plant
Anders Romundset, Kristian Vasskog, Martin Buran, Svein Olaf Dahl, Fredrik Høgaas, Mara Sternberg   +5 more
wiley   +1 more source

Preliminary Study on the Antibacterial Activities and Antibacterial Guided Fractionation of Some Common Medicinal Plants Practices in Itum Bahal, Kathmandu Valley of Nepal

The Scientific World Journal, 2023
The aim of this study was to evaluate the antibacterial activities of selected medicinal plant practices by a traditional healer of the Newar community in Itum Bahal, Kathmandu, Nepal. The antibacterial activities of the methanolic extract (1 mg/disc) of
Ravin Bhandari, Dhakaraj Pant, Kamal Singh Kathayat, Ramesh Bhattarai, Himal Barakoti, Jitendra Pandey, Nirmala Jamarkatel-Pandit   +6 more
doaj   +1 more source

Species diversity and host plant associations of ambrosia beetles in Southeast Asian forests of Laos and Vietnam revealed by DNA barcoding

Insect Conservation and Diversity, EarlyView.
Integrative DNA barcoding of ambrosia beetles and host plants revealed 27 beetle species across 16 genera and extensive, previously undocumented host plant diversity in Laos and Vietnam. Host specificity varied widely among ambrosia beetles, with Xylosandrus crassiusculus emerging as a dominant generalist associated with 19 host species from 12 plant ...
Bounsanong Chouangthavy, Phongphayboun Phonepaseuth, Emiko Oguri, Shuichiro Tagane, Phetlasy Souladeth, Phonepadith Phewphanh, Dac Dai Nguyen, Anh D. Nguyen, Noriaki Murakami, Katsuyuki Eguchi, Takahiro Yoshida   +10 more
wiley   +1 more source

Arbuscular Mycorrhizal Colonization Enhanced Early Growth of Mallotus paniculatus and Albizia saman under Nursery Conditions in East Kalimantan, Indonesia

International Journal of Forestry Research, 2014
Forest over logging, forest fire, forest conversion, and opencast mining have promoted deforestation in Indonesia, and reforestation is needed immediately. However, reforestation is limited by low seedling quality and production, and slow seedling growth
Dewi Wulandari, Saridi, Weiguo Cheng, Keitaro Tawaraya   +3 more
doaj   +1 more source

Mortality in Salmon (Salmo salar) Fry Related to Lipoid Liver Disease Induced by Unbalanced Fatty Acid Composition of the Diet

Journal of Fish Diseases, EarlyView.
ABSTRACT In 2023, all but one Swedish restocking farm rearing Baltic salmon and sea trout fry experienced massive mortality caused by lipoid liver disease (LLD). The struck farms used the same feed, and this was suspected to be the cause of the outbreak.
Caroline Ek, Lo Persson, Charlotte Axén
wiley   +1 more source