Results 31 to 40 of about 960,373 (171)

Abundance and Seasonal Dynamics of Guiana Dolphins (Sotalia guianensis) in Southern Brazilian Estuarine and Adjacent Coastal Waters

open access: yesAquatic Conservation: Marine and Freshwater Ecosystems, Volume 36, Issue 2, February 2026.
ABSTRACT Estimating population parameters is crucial for understanding species dynamics and assessing anthropogenic impacts, thereby supporting conservation efforts. We evaluate key population parameters—group structure, abundance and capture–recapture probabilities—of the Guiana dolphin in the Paranaguá Estuarine Complex and adjacent coastal waters ...
Stephane P. G. de Moura   +3 more
wiley   +1 more source

Biogeografia e Distribuição Geográfica [PDF]

open access: yes, 2018
XXXII Congresso Brasileiro de Zoologia, Foz do Iguaçu, 2018. Tema: Desafios e perspectivas para a Zoologia na América LatinaCaderno de Resumos de Trabalhos da Área temática Biogeografia e Distribuição Geográfica, do XXXII Congresso Brasileiro de ...

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Competitor Richness Outweighs Climate and Land Cover in Explaining Abundance Variation of a Neotropical Fruit Bat

open access: yesAustral Ecology, Volume 51, Issue 1, January 2026.
ABSTRACT Understanding which processes regulate spatial variation in species abundance across their ranges is key in ecology. Species abundances may be affected by several factors, such as climate, elevation, land cover, species interactions and habitat protection status. However, few studies have focused on these effects synergistically across species
Marcelo de Moraes Weber, Artur Malecha
wiley   +1 more source

Estudo da localização de abatedouros e centros de distribuição de agroindústrias de frangos de corte no Distrito Federal

open access: yesBoletim de Indústria Animal, 2011
O presente trabalho estudou a localização de uma agroindústria avícola e otimizou sua rede, dos integrados aos consumidores, determinando a quantidade de abatedouros e centros de distribuição que a empresa deve possuir e a localização destes de forma a minimizar custos.
Eliane Almeida do Carmo   +2 more
openaire   +5 more sources

Distribution, antiquity and niche of pre-columbian guaraní amazonian horticulturalists in the misiones rainforest, Argentina [PDF]

open access: yes, 2017
En este trabajo presentamos la distribución conocida del registro arqueológico generado por horticultores amazónicos, englobados dentro de la unidad arqueológica Guaraní, en la provincia de Misiones.
Carbonera, Miriam   +1 more
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The Miners of South America: Impacts of Climate Change on the Distribution of Geositta Miners Along Elevational Gradients

open access: yesBiotropica, Volume 58, Issue 1, January 2026.
We modeled the current and future distributions of seven Geositta species along elevational gradients in South America under two climate change scenarios. Our results show that most species are projected to lose suitable habitats, particularly under the high‐emission scenario, with distinct responses between lowland and highland taxa.
Ricardo C. Meireles   +3 more
wiley   +1 more source

Population biology of shrimp Macrobrachium jelskii (Miers, 1778) (Decapoda, Palaemonoidea) at the Grande River at northwest of the state of Minas Gerais, Brazil Biologia populacional do camarão Macrobrachium jelskii (Miers, 1778) (Decapoda, Palaemonoidea) no Rio Grande no noroeste do estado de Minas Gerais, Brasil

open access: yesActa Limnologica Brasiliensia, 2012
AIM: The population biology of the freshwater shrimp Macrobrachium jelskii was investigated here emphasizing the length-frequency distribution, sex ratio, reproductive period and juvenile recruitment.
Samara de Paiva Barros-Alves   +5 more
doaj   +1 more source

Distribuição espacial de Procornitermes sp. (Isoptera: Termitidae) em função das propriedades físicas do solo em área de pastagem no município de São Borja, Rio Grande do Sul. [PDF]

open access: yes, 2012
Os cupins pertencentes ao gênero Procornitermes são comumente encontrados em áreas de pastagem e a sua presença têm sido associada a situações de desequilíbrio ambiental e qualidade física do solo.
Dias, Naymã Pinto   +3 more
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How Management Practices Shape the “Local Habitat Signature” That Modulates Bird Communities in Urban Green Spaces

open access: yesBiotropica, Volume 58, Issue 1, January 2026.
Local scale factors, not just the broad urban gradient, are the key drivers of urban bird communities. Our multi‐scale study found that specific management practices, such as managing leaf litter depth or the presence of unmanaged tall grass, explained the largest portion of variation in bird composition.
Tulaci Bhakti   +3 more
wiley   +1 more source

Survey and New Distributional Records of Nocturnal Social Wasps Apoica (Hymenoptera, Vespidae, Epiponini) Along Madeira River, Rondônia, Brazil

open access: yesEntomoBrasilis, 2016
: Diversity of species of Apoica present along the portion of Madeira river in Rondônia was investigated. Five of the ten species were found, with new distributional records for Apoica gelida van der Vecht and Apoica pallens Fabricius.
Bruno Gomes   +3 more
doaj   +1 more source

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