Results 91 to 100 of about 7,770 (323)

Stable Carbon and Nitrogen Isotope Analysis Explores Diverse Domestic Goose Management Practices in Medieval and Postmedieval Russia

open access: yesInternational Journal of Osteoarchaeology, EarlyView.
ABSTRACT Studying goose domestication through archaeological finds has been challenging due to the similar skeletal morphology of the European domestic goose and its wild progenitor, the greylag goose (Anser anser). We analyzed stable carbon (δ13C) and nitrogen (δ15N) isotopes from bone collagen of subfossil domestic and potentially domestic geese to ...
Johanna Honka   +7 more
wiley   +1 more source

Development and functional morphology of the larval foregut of two brachyuran species from Northern Brazil

open access: yesAnais da Academia Brasileira de Ciências, 2011
Feeding is an important factor for the successful rearing of larvae of the crab species. Further information on the morphological features of the foregut may to reveal larval feeding behaviour and or/whether there is a lecithotrophy in some or even in ...
Fernando A. Abrunhosa   +4 more
doaj  

Pilumnus reticulatus Stimpson, 1860 (Decapoda: Brachyura: Pilumnidae): a reappraisal of larval characters from laboratory reared material

open access: yesScientia Marina, 2002
The pilumnid crab Pilumnus reticulatus Stimpson, 1860 is known to range from the Caribbean Sea to Argentina (Atlantic). It has also been recorded from the Pacific coast of Panama.
Eduardo D. Spivak, Antonio Rodríguez
doaj   +1 more source

The Transformation of Energy by Lucifer chacei (Crustacea, Decapoda) [PDF]

open access: yes, 1973
A laboratory study of energy transformations by the pelagic decapod crustacean Lucifer chacei was made. Three combined stages were cultured and studied: the protozoea-zoea stages, the combined early and late schizopod stages, and the combined adult ...
Zimmerman, Steven T.
core  

Speciation with gene flow

open access: yesPLANTS, PEOPLE, PLANET, EarlyView.
Biodiversity is threatened by human activities, with extinction debt accumulating rapidly. Many of these activities change the connectivity of populations, fragmenting existing population systems or bringing previously isolated populations or species into contact.
Zhiqin Long   +7 more
wiley   +1 more source

Breeding and larval rearing of mud crab- Winter School on Recent Advances in Breeding and Larviculture of Marine Finfish and Shellfish [PDF]

open access: yes, 2009
Aquaculture of mud crabs (Scylla spp.) dates back to 1890 in Guangdong, China (Shan and Lain 1994). Since 1970s onwards, a steady interest was noticed in mud crabs culture in many tropical Asian countries due to its importantance in the industry and ...
Balasubramanian, C P
core  

Crop genotypic richness enhances biomass production and phosphorus acquisition in maize‐mycorrhiza symbiosis

open access: yesPLANTS, PEOPLE, PLANET, EarlyView.
Our study tests how soil and plant biodiversity can enhance sustainability of crop production in Kenya. We tested whether mixtures of maize varieties performed better than monocultures and tested their response to arbuscular mycorrhizal fungi. Mycorrhizal responsiveness differed significantly by maize variety, and genetic mixtures outperformed ...
Grace Ng'endo Kanyita   +3 more
wiley   +1 more source

Conservation status of species used in the UK herbal medicine industry

open access: yesPLANTS, PEOPLE, PLANET, EarlyView.
Given the ongoing biodiversity crisis, sustainable use and management of medicinal plants is critical. We assessed the conservation status, threats and conservation actions of 298 species sold by UK suppliers to medical herbalists. We found that most species used are unevaluated, representing a gap in conservation knowledge, and of those with ...
Isabella Flowers   +2 more
wiley   +1 more source

Larval development of a semi terrestrial mangrove sesarmine crab Chasmagnathus convexus (Crustacea: Decapoda: Brachyura: Grapsidae) reared in laboratory [PDF]

open access: yes, 2001
Four zoeal stages and one megalopal stage were identified in laboratory reared semiterrestrial mangrove sesarmine crab Chasmagnathus convexus. At an average salinity and temperature of 20±1% and 19.2±0.2°C, the megalopa was attained 24 days after ...
Islam, M.S., Kawaguchi, H., Shokita, S.
core  

Challenges and limitations of introducing pigeonpea as a new crop into smallholder farming systems through farmer‐to‐farmer education in Zambia

open access: yesPLANTS, PEOPLE, PLANET, EarlyView.
Legume plants offer generous benefits for both the planet and people by supporting sustainable farming, food and feed systems through their ability to symbiotically fix atmospheric nitrogen. While grain legumes are cultivated and consumed globally, their adoption, market development, and integration into cropping systems vary.
Hamid Khazaei   +2 more
wiley   +1 more source

Home - About - Disclaimer - Privacy