Results 21 to 30 of about 6,191 (116)

Composição e abundância da assembléia de Cladocera (Crustacea) associada à macrófitas aquáticas (Eichhornia azurea) na planície de inundação do alto rio Paraná - DOI: 10.4025/actascibiolsci.v25i1.2118

open access: yesActa Scientiarum: Biological Sciences, 2008
Foram estudadas a composição e abundância da assembléia de cladóceros associados à Eichhornia azurea (Pontederiaceae) em distintos ambientes da planície de inundação do alto rio Paraná.
Adauto Fonseca Lima   +4 more
doaj   +1 more source

Providing regular and frequent maps of losses and gains of farmland birds based on European monitoring data

open access: yesConservation Biology, EarlyView.
Abstract Knowledge of species distributions is essential for informing policies on nature conservation and restoration. However, updating them on a regular basis and doing so in a harmonized manner at the international level is difficult. The European Bird Census Council integrated national monitoring data covering 5 years to update farmland bird ...
Sergi Herrando   +54 more
wiley   +1 more source

Variations in the abundance of three Parulidae species in the southern portion of the Brazilian Atlantic Forest, state of Paraná

open access: yesAnais da Academia Brasileira de Ciências, 2012
We evaluated the distribution of abundance of three species of warblers in the southern portion of the Brazilian Atlantic Forest (BAF): Tropical Parula (Parula pitiayumi), the Golden-Crowned Warbler (Basileuterus culicivorus) and the White-Rimmed Warbler
Cássius R. Santana   +2 more
doaj  

Studies in South-Occidental Amazon: contribution to the knowledge of Brazilian Chironomidae (Insecta: Diptera)=Estudos na Amazônia Sul-ocidental: contribuição para os conhecimentos sobre Chironomidae (Insecta: Diptera) no Brasil [PDF]

open access: yesActa Scientiarum: Biological Sciences, 2012
Chironomidae (Diptera) are a diverse and large group of small flies, whose larvae inhabit nearly every possible niche in most freshwater aquatic ecosystems. The Acre river is an important affluent of the Purus river.
Maria Rosélia Marques Lopes   +4 more
doaj  

Splendid oddness: revisiting the curious trophic relationships of South American Pleistocene mammals and their abundance

open access: yesAnais da Academia Brasileira de Ciências, 2014
The South American Pleistocene mammal fauna includes great-sized animals that have intrigued scientists for over two centuries. Here we intend to update the knowledge on its palaeoecology and provide new evidence regarding two approaches: energetics and ...
RICHARD A. FARIÑA   +2 more
doaj   +1 more source

Epífitos vasculares sobre espécimes de Ficus organensis isoladas no norte da planície costeira do Rio Grande do Sul: padrões de abundância e distribuição [PDF]

open access: yesActa Botânica Brasílica, 2002
Os padrões de abundância e distribuição de epífitos vasculares foram estudados em espécimes isolados de Ficus organensis (Miq.) Miq. no norte da planície costeira do Rio Grande do Sul. A área de estudo está situada próximo ao Município de Terra de Areia (
Cezar Neubert Gonçalves   +1 more
doaj   +1 more source

Integrating traditional practices, livelihoods, and conservation with Indigenous‐led furbearer camera trapping

open access: yesConservation Biology, EarlyView.
Abstract Contemporary conservation goals have a greater chance of success when practitioners collaborate with Indigenous communities. The importance of such collaborations has spurred calls by Western and Indigenous researchers to engage in equitable coproduction of ecological research that integrates multiple ways of knowing.
Kathleen A. Carroll   +4 more
wiley   +1 more source

A study of the fish community structure in a tidal creek Um estudo sobre a estrutura da comunidade de peixes de um rio de maré

open access: yesBrazilian Journal of Biology, 2004
The fish assemblage in a mangrove tidal creek was studied in monthly collections between August 1998 and July 1999 in the quadrature low tide and high tide, using a fyke net of 30 m x 1.5 m and meshes of 8 and 10 mm.
H. L. Spach   +4 more
doaj   +1 more source

A global assessment of animal community responses to agricultural management

open access: yesConservation Biology, EarlyView.
Abstract Transitions in agricultural management through crop and noncrop diversification on intensively managed croplands or pastures have benefited biodiversity. However, the extent to which agricultural management benefits species communities present in undisturbed ecosystems remains largely unclear.
Susana López Rodríguez   +3 more
wiley   +1 more source

Abundância de ciliados planctônicos em reservatórios em cascata do rio Paranapanema, Brasil- DOI: 10.4025/actascibiolsci.v26i4.1532

open access: yesActa Scientiarum: Biological Sciences, 2008
O presente estudo teve como objetivo investigar os padrões de distribuição espacial e temporal da densidade e biomassa dos ciliados planctônicos em reservatórios em cascata do rio Paranapanema (22o 18’ - 23o 35’ S; 49o 30’ - 52o 50’ W).
Fabio Amodeo Lansac-Tôha   +4 more
doaj   +1 more source

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