نتایج جستجو برای: علف نیphragmites australis

تعداد نتایج: 6578  

2015
Carlos A. Salas Kara E. Yopak Rachael E. Warrington Nathan S. Hart Ian C. Potter Shaun P. Collin

Very few studies have described brain scaling in vertebrates throughout ontogeny and none in lampreys, one of the two surviving groups of the early agnathan (jawless) stage in vertebrate evolution. The life cycle of anadromous parasitic lampreys comprises two divergent trophic phases, firstly filter-feeding as larvae in freshwater and secondly parasitism as adults in the sea, with the transitio...

Journal: :Anais da Academia Brasileira de Ciencias 2014
Thaisa R F Magalhães Raquel A F Neves Jean L Valentin Gisela M Figueiredo

The aim of this study was to determine the influence of temperature increase combined to conditions of light incidence on functional response of Heleobia australis. Experiments were conducted using nine to ten food concentrations for each treatment: 20°C without light; 30°C without light and, 30°C under low light intensity. For each experiment, the functional response type III (sigmoidal) was f...

2003
K. N. Mouritsen R. Poulin

Samples of the New Zealand cockleAustrovenus stutchburyi (Veneridae) collected at two di¡erent intertidal levels were found to be heavily infected by the echinostome trematode Curtuteria australis which use the mud £at whelk Cominella glandiformis and shorebirds as ¢rst and de¢nitive host, respectively. Parasite loads were on average more than 2-fold higher at the high site than at the low site...

2016
Florence Ayral Zoheira Djelouadji Vincent Raton Anne-Laure Zilber Patrick Gasqui Eva Faure Florence Baurier Gwenaël Vourc’h Angeli Kodjo Benoît Combes

Human leptospirosis is a zoonotic and potentially fatal disease that has increasingly been reported in both developing and developed countries, including France. However, our understanding of the basic aspects of the epidemiology of this disease, including the source of Leptospira serogroup Australis infections in humans and domestic animals, remains incomplete. We investigated the genetic dive...

2016
Mariana Kluge Fabrício Souza Campos Maurício Tavares Derek Blaese de Amorim Fernanda Pedone Valdez Adriana Giongo Paulo Michel Roehe Ana Claudia Franco

The Brazilian South coast seasonally hosts numerous marine species, observed particularly during winter months. Some animals, including fur seals, are found dead or debilitated along the shore and may harbor potential pathogens within their microbiota. In the present study, a metagenomic approach was performed to evaluate the viral diversity in feces of fur seals found deceased along the coast ...

2004
Raphael Kudela Alice Roberts

Here we present results from laboratory experiments using Pseudo-nitzschia spp. isolated from Monterey Bay, California grown under constant temperature and irradiance. We demonstrate substantial clonal variability and variable toxicity depending on harvest time and nutrients. We also show that Si limitation can directly affect photosynthetic performance and looks functionally like iron and nitr...

Journal: :Zootaxa 2014
John W M Marris Adam Ślipiński

The Pediacus Shuckard fauna of Asia and Australasia is revised. Eighteen species are recorded, described and illustrated from the regions and a key to species is provided. Nine new species are described: Pediacus australis sp. nov. (Australia, Papua New Guinea, Philippines, Thailand), P. carinatus sp. nov. (Indonesia, Malaysia, Thailand), P. fujianensis sp. nov. (China), P. japonicoides sp. nov...

2016
Susumu Tomiya Zhijie Jack Tseng

The Middle to Late Eocene sediments of Texas have yielded a wealth of fossil material that offers a rare window on a diverse and highly endemic mammalian fauna from that time in the southern part of North America. These faunal data are particularly significant because the narrative of mammalian evolution in the Paleogene of North America has traditionally been dominated by taxa that are known f...

2017
Patricia W. Freeman Cliff A. Lemen CLIFF A. LEMEN

Morphometric analysis revealed three distincall other emballonurids. Phylogenetic studies also tive groups among the genera of emballonurids. separated Taphozous-Saccolaimus as distinctive Taphozous-Saccolaimus is a group distinctive in but included diclidurids among other New World size and shape, particularly cranially. Diclidurids species. Compared with molossids, emballonurids are distincti...

2017
Per Milberg Lina Törnqvist Lars M. Westerberg David Bastviken

Methane (CH4) emissions via emergent aquatic macrophytes can contribute substantially to the global CH4 balance. We addressed temporal variability in CH4 flux by using the static chamber approach to quantify fluxes from plots dominated by two species considered to differ in flux transport mechanisms (Phragmites australis, Carex rostrata). Temporal variability in daily mean emissions from early ...

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