Results 91 to 100 of about 4,281 (217)

Introductions of non-native fishes into a heavily modified river: rates, patterns and management issues in the Paranapanema River (Upper Paraná ecoregion, Brazil) [PDF]

open access: yesBiological Invasions, 2017
Understanding the pathways and impacts of non-native species is important for helping prevent new introductions and invasions. This is frequently challenging in regions where human activities continue to promote new introductions, such as in Brazil, where aquaculture and sport fishing are mainly dependent on non-native fishes. Here, the non-native fish
Garcia, D.A.Z.   +3 more
openaire   +1 more source

Diversidade e distribuição espacial de bromeliáceas epifíticas do Altíssimo Rio Tibagi - Paraná - Brasil. [PDF]

open access: yes, 2019
O presente estudo teve como objetivo caracterizar a diversidade e a distribuição espacial das bromeliáceas epifíticas na região do altíssimo rio Tibagi, considerando os fatores geomorfológicos, pedológicos, climáticos e vegetacionais.
BONNET, A.   +3 more
core   +1 more source

Spatial predictors of landowners' engagement in the restoration of the Brazilian Atlantic Forest

open access: yesPeople and Nature, Volume 7, Issue 1, Page 247-264, January 2025.
Abstract Forest restoration can potentially contribute to multiple global sustainable development goals. Yet, little is known about the factors associated with local actors' choice to engage in restoration, limiting the development of effective scaling strategies.
Thomas Pienkowski   +8 more
wiley   +1 more source

New occurrence of a non-native ornamental cichlid in the Paranapanema River, southern Brazil

open access: yesNeotropical Biology and Conservation, 2017
Fish introductions are common practices due to intentionally or unintentionally translocations of species between watersheds. Herein we report the spread of the non-native cichlid Laetacara araguaiae Ottoni & Costa 2009 in the Paranapanema River basin, southern Brazil.
Diego Azevedo Zoccal Garcia   +5 more
openaire   +2 more sources

Concentração de áreas irrigadas por pivôs centrais no Estado de São Paulo - Brasil. [PDF]

open access: yes, 2018
Foram mapeadas as áreas irrigadas por pivôs centrais no Estado de São Paulo em 2013, através da identificação visual, com base no mosaico formado por imagens do satélite Landsat 8 OLI / TIRS de 2013, exibido no programa Google Earth.
GUIMARAES, D. P.   +3 more
core  

Moving Encounters [PDF]

open access: yes, 2011
This essay explores my experience of losing an authoritative speaking position – that is, ‘falling on my face’ in a research encounter with the Brazilian Landless Worker’s Movement (O Movimento dos Trabalhadores Rurais sem Terra ...
Deslandes, Ann
core   +3 more sources

Influence of cage farming on feeding and reproductive aspects of Pimelodus maculatus Lacépède, 1803 (Siluriformes: Pimelodidae) in the Chavantes reservoir, Brazil - doi: 10.4025/actascibiolsci.v36i1.

open access: yesActa Scientiarum: Biological Sciences, 2013
This study evaluated the diet and reproductive aspects of the population of Pimelodus maculatus around net cage fish farming in order to assess the possible impacts of this activity.
Heleno Brandão   +3 more
doaj   +1 more source

Genetic variability of rainbow trout (Oncorhynchus mykiss) cultured in Iran using molecular RAPD markers [PDF]

open access: yes, 2013
In the present study we evaluated the amount and distribution of genetic variation by using RAPD marker variation of 12 markers loci in three broodstock groups of rainbow trout.
Afzali, M.   +2 more
core  

An integrated passive acoustic monitoring and deep learning pipeline for black‐and‐white ruffed lemurs (Varecia variegata) in Ranomafana National Park, Madagascar

open access: yesAmerican Journal of Primatology, Volume 86, Issue 4, April 2024.
The transfer learning pipeline we used to train a convolutional neural network to distinguish between ruffed lemur and nonlemur calls. Abstract The urgent need for effective wildlife monitoring solutions in the face of global biodiversity loss has resulted in the emergence of conservation technologies such as passive acoustic monitoring (PAM).
Carly H. Batist   +5 more
wiley   +1 more source

Feeding ecology of Rhinodoras dorbignyi (Kner, 1855) (Siluriformes: Doradidae) in the Paranapanema River, SP, Brazil

open access: yesBiotemas, 2016
http://dx.doi.org/10.5007/2175-7925.2016v29n1p67Estudos sobre caracterização da dieta de peixes representam um instrumento que permite determinar relações nas cadeias tróficas, definir hábitos alimentares e a ocupação de habitats e determinar os nichos tróficos das espécies.
Lima, Felipe Pontieri de   +4 more
openaire   +4 more sources

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