نتایج جستجو برای: biota

تعداد نتایج: 5026  

1999
John Saville Waid

A central tenet of biological science is that living organisms modify their environments. Metabiosis is a form of ecological dependence in which one organism or a functional group of organisms must modify the environment before another organism or functional group of organisms can live or thrive in it. Soil ecosystems are modi®ed by metabionts to create habitats or supply resources for which de...

Journal: :Jurnal Pendidikan Geografi Undiksha 2022

Kabupaten Administrasi Kepulauan Seribu, DKI Jakarta, salah satu wilayah administrasi di Jakarta yang memiliki potensi keragaman biodiversitas dapat dijadikan ekowisata berbasis edukasi, diantaranya pulau pramuka dan kotok besar. Kedua ini biota, seperti penyu, lamun, mangrove, elang laut, hingga bondol menjadi ikon ibukota oleh sebab itu pentingnya pariwisata edukasi diterapkan pulau-pulau den...

Journal: :Advances in experimental medicine and biology 2008
Bas W Ibelings Karl E Havens

This paper reviews the rapidly expanding literature on the ecological effects of cyanobacterial toxins. The study employs a qualitative meta-analysis from the literature examining results from a large number of independent studies and extracts general patterns from the literature or signals contradictions. The meta-analysis is set up by putting together two large tables--embodying a large and r...

2017
Yaisel J Borrell Laura Miralles Hoang Do Huu Khaled Mohammed-Geba Eva Garcia-Vazquez

Biota monitoring in ports is increasingly needed for biosecurity reasons and safeguarding marine biodiversity from biological invasion. Present and future international biosecurity directives can be accomplished only if the biota acquired by maritime traffic in ports is controlled. Methodologies for biota inventory are diverse and now rely principally on extensive and labor-intensive sampling a...

2017
Daniela HOFFMANN Peter SCHAUSBERGER

Research on aboveground-belowground interactions has recently experienced a boost. In spite of the relative prosperity of scientific literature featuring aboveground herbivorous arthropods involved in abovegroundbelowground interactions, mites have so far been under-represented. To stimulate work with mites in this area, we summarize existing research on plant-mediated interactions of abovegrou...

2017
Kathryn Korbel Anthony Chariton Sarah Stephenson Paul Greenfield Grant C. Hose

When compared to surface ecosystems, groundwater sampling has unique constraints, including limited access to ecosystems through wells. In order to monitor groundwater, a detailed understanding of groundwater biota and what biological sampling of wells truly reflects, is paramount. This study aims to address this uncertainty, comparing the composition of biota in groundwater wells prior to and ...

Journal: :Environmental science & technology 2009
Celia Y Chen Michele Dionne Brandon M Mayes Darren M Ward Stefan Sturup Brian P Jackson

Marine food webs are important links between Hg in the environment and human exposure via consumption of fish. Estuaries contain sediment repositories of Hg and are also critical habitat for marine fish and shellfish species consumed by humans. MeHg biotransfers from sites of production in estuarine sediments to higher trophic levels via both benthic and pelagic pathways. In this study, we inve...

2005
Christian Brochmann Tove M. Gabrielsen Inger Nordal Jon Y. Landvik Reidar Elven

The possibility that northern refugia for arctic and boreal biota existed in geographic regions other than Beringia during the ice ages has stimulated continuous debates among botanists, zoologists, and geologists. A voluminous literature has accumulated presenting biogeographic and other evidence to propose numerous high-latitude refugia, such as nunataks protruding above the ice caps and expo...

2014
Benjamín Quiroz-Martínez Fernando Álvarez Héctor Espinosa Guillermo Salgado-Maldonado

In this paper we analyse the degree of concordance in species richness and taxonomic distinctness (diversity) patterns among different freshwater taxonomic groups in order to test three long held patterns described in Mexican freshwater biogeography: 1. The aquatic biota of Mexico includes two distinct faunas, a rich Neotropical component in the south and a south-eastern region and a less rich ...

2011
Jasper van Ruijven

Sod cutting (i.e. top soil removal) is a restoration management option for enhancing seedling establishment and for lowering the nutrient concentration in eutrophicated soils of nutrient-poor species-rich grasslands. Removal of the upper soil changes not only abiotic soil properties but may also affect the resident soil community. We investigated the effects of sod cutting on the establishment ...

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