Results 91 to 100 of about 108,494 (314)

Vegetative propagation in Piperaceae species

open access: yesBrazilian Archives of Biology and Technology, 2009
Piperaceae species of forest remnants of Maringá, Paraná, Brazil present vegetative propagation through root or stem (stolon). This reproduction type was verified in Piper amalago L., P. arboreum Aublet, P.
Luiz Antonio de Souza   +6 more
doaj   +1 more source

Why isn’t sex optional? Stem-cell competition, loss of regenerative capacity, and cancer in metazoan evolution

open access: yesCommunicative & Integrative Biology, 2020
Animals that can reproduce vegetatively by fission or budding and also sexually via specialized gametes are found in all five primary animal lineages (Bilateria, Cnidaria, Ctenophora, Placozoa, Porifera).
Chris Fields, Michael Levin
doaj   +1 more source

Under the Shade of a Coolabah Tree: A Second Cache of Tulas From the Boulia District, Western Queensland

open access: yesArchaeology in Oceania, EarlyView.
ABSTRACT This paper reports on the excavation of a cache of stone artefacts, buried on the bank of a waterhole or ‘billabong’ in central western Queensland. This is an extremely rare find, and yet it is the second such site to be reported within less than a 10 km radius.
Yinika L. Perston   +5 more
wiley   +1 more source

Gleaning the Rocky Shore? 2500 Years of Coastal Resource Use at Red Bluff 1, GunaiKurnai Country, SE Australia

open access: yesArchaeology in Oceania, EarlyView.
ABSTRACT Shell middens in Gippsland along the eastern half of Victoria's coastline have usually been characterised as small, short‐duration camp sites with relatively low shell densities and low taxonomic diversity. Here we present new excavation results from a dense, high‐diversity site at Red Bluff near the eastern end of GunaiKurnai Country, a ...
Patrick Faulkner   +17 more
wiley   +1 more source

Allocation of Resources to Growth and Spore Production in a Fern Ophioglossum vulgatum L.: Effects of Mowing and Simulated Herbivory

open access: yesEcology and Evolution
Natural selection drives how organisms allocate resources among competing demands such as growth, reproduction, and survival. In ferns, where reproductive and vegetative organs share developmental pathways, these trade‐offs may be particularly strong ...
Natalia Jędrzejczak   +2 more
doaj   +1 more source

Light Availability and Patterns of Allocation to Reproductive and Vegetative Biomass in the Sexes of the Dioecious Macrophyte Vallisneria spinulosa

open access: yesFrontiers in Plant Science, 2019
Environmental changes, e.g., eutrophication, in aquatic ecosystems can greatly alter light available to submerged macrophytes. In dioecious plants, given potential for sex-specific differences in resource requirements (i.e., high-carbon for seeds vs ...
Lei Li   +7 more
doaj   +1 more source

TARGET OF RAPAMYCIN is essential for asexual vegetative reproduction in Kalanchoë. [PDF]

open access: yesPlant Physiol, 2022
McCready K   +6 more
europepmc   +1 more source

Landscape-scale establishment and population spread of yellow-cedar (Callitropsis nootkatensis) at a leading northern range edge [PDF]

open access: yes, 2016
Thesis (M.S.) University of Alaska Fairbanks, 2016Yellow-cedar is a long-lived conifer of the North Pacific Coastal Temperate Rainforest region that is thought to be undergoing a continued natural range expansion in southeast Alaska.
Krapek, John P.
core  

Graman Revisited Once Again: A Reanalysis of the Late Holocene Legacy Faunal Assemblage From GB4 Rockshelter, New South Wales

open access: yesArchaeology in Oceania, EarlyView.
ABSTRACT The archaeological site Graman B4 provided one of the first records of substantial dietary change in ancient Australian Aboriginal society. Initial examination of the faunal remains from this site suggested that Late Holocene hunters reduced their focus on high‐ranked kangaroos to increasingly rely on arboreal possums; and that these ...
Loukas George Koungoulos   +2 more
wiley   +1 more source

Home - About - Disclaimer - Privacy