Results 31 to 40 of about 3,238 (115)

Assessing contributions of deterministic versus stochastic processes to local species assembly: A field experiment with annual plant‐dominated communities in gypsum systems

open access: yesJournal of Ecology, Volume 114, Issue 3, March 2026.
In this study, we experimentally show that stochasticity can play prominent roles in driving local species assembly in annual plant‐dominated communities of semiarid gypsum ecosystems. Drylands are traditionally viewed as restrictive environments that impose strong deterministic filtering effects, but neutral events can also contribute decisively to ...
Laura Ortiz   +3 more
wiley   +1 more source

Locally adapted brazilian sheep: a model of adaptation to Semiarid region

open access: yesSemina: Ciências Agrárias, 2018
Well adapted animals are characterized by maintain homeostasis under natural conditions. The present study aimed to evaluate physiological and morphological responses, as well as identify the relationship between these parameters in order to maintain ...
Jacinara Hody Gurgel Morais Leite   +7 more
doaj   +3 more sources

Avaliação do turismo de observação de botos-cinza na Reserva Faunística Costeira de Tibau do Sul (REFAUTS), Rio Grande do Norte, Brasil

open access: yesSustentabilidade em Debate, 2017
O turismo de observação de cetáceos (TOC) pode contribuir para a conservação de cetáceos e desenvolvimento econômico local. Este estudo teve como objetivo caracterizar o turismo de observação de botos-cinza, de forma a subsidiar o plano de manejo da ...
Diana Gonçalves Lunardi   +4 more
doaj   +1 more source

Drivers of Habitat Selection by the Endangered Greater Caribbean Manatee in Coastal‐Marine Ecosystems

open access: yesAquatic Conservation: Marine and Freshwater Ecosystems, Volume 36, Issue 1, January 2026.
ABSTRACT Habitat selection is a fundamental aspect of animal movement and behaviour, involving strategies that influence population regulation, species interactions, community structure and the generation and preservation of biodiversity. The Greater Caribbean Manatee is a megaherbivorous aquatic mammal with high environmental plasticity, found in a ...
Iran C. Normande   +8 more
wiley   +1 more source

Biologia floral e sistema reprodutivo de Gliricidia sepium (Jacq.) Steud. (Fabaceae- Papilionoidae) na região de Petrolina, Pernambuco [PDF]

open access: yesCiência Rural, 2001
Aspectos da biologia da polinização e do sistema de reprodução de Gliricidia sepium foram estudados no período de março a dezembro de 1999, entre 05:30 e 17:00h., em uma população introduzida na Embrapa Semi-Árido (Petrolina, estado de Pernambuco ...
Lúcia Helena Piedade Kiill   +1 more
doaj   +1 more source

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

Combining Insecticides and Bioinputs With Eucalyptus Wood Vinegar: Effects on the Soybean Crop

open access: yesAdvances in Agriculture, Volume 2026, Issue 1, 2026.
The use of pesticides and bioinputs in agriculture is one of the most vital needs today to improve crop yields. A combination of pesticides and bioinputs, along with natural agents, is a viable solution to make agribusiness more eco‐friendly. Wood vinegar (WV) is a recognized agricultural input that enhances plant growth and can act as a valuable agent
Leonardo José de Sousa Lima   +10 more
wiley   +1 more source

Germinação e crescimento inicial de variedades de sorgo forrageiro submetidas ao estresse salino [PDF]

open access: yesRevista Brasileira de Engenharia Agrícola e Ambiental, 2014
O objetivo deste trabalho foi avaliar a tolerância à salinidade de seis variedades de sorgo forrageiro a partir da porcentagem de germinação e do crescimento inicial das plântulas submetidas a seis níveis de salinidade.
Daniela S. Coelho   +5 more
doaj  

Citizens Turning Into Scientists: A Calling to Boost the Knowledge of the Public to Address the Environmental Crisis in the Brazilian Semiarid 从公众到科学家:助力提升公众知识以应对巴西半干旱地区环境危机

open access: yesIntegrative Conservation, Volume 4, Issue 4, Page 546-554, December 2025.
Desertification is increasing in the Brazilian Semiarid, leading to loss of species and ecosystem services, while precise data on biodiversity distribution and trends are lacking. Public engagement in scientific projects can improve ecosystem protection.
Lucas Rodriguez Forti   +3 more
wiley   +1 more source

Controle biológico de Spodoptera frugiperda Smith, 1797 (Lepidoptera: Noctuidae) por bactérias

open access: yesRevista Verde de Agroecologia e Desenvolvimento Sustentável, 2018
O milho é uma das culturas mais produzidas e importantes no mundo e apesar da elevada produção no Brasil, a sua produtividade ainda é comprometida pela ação de insetos pragas, sendo Spodoptera frugiperda Smith, 1797 praga chave. Em meio a esse desafio, o
Jessé Malveira Gomes   +4 more
doaj   +1 more source

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