Results 11 to 20 of about 640,753 (167)

Recovery of insular seabird populations years after rodent eradication

open access: yesConservation Biology, Volume 37, Issue 3, June 2023., 2023
Abstract Seabirds have been particularly affected by invasive non‐native species, which has led to the implementation of numerous eradication campaigns for the conservation of these keystone and highly vulnerable species. Although the benefits of eradication of invasive non‐native species for seabird conservation have been demonstrated, the recovery ...
Martin Philippe‐Lesaffre   +8 more
wiley   +1 more source

Smaller species experience mild adversity under shading in an old‐field plant community

open access: yesEcology and Evolution, Volume 12, Issue 6, June 2022., 2022
We characterized the light environment and tested for evidence of a size‐advantage in light competition in an old‐field plant community. We found that plots with taller species cast more shade, and that smaller species were less abundant and diverse in plots where light penetration was low; however, variation in mean plot height explained less than 10%
Kelly C. Balfour   +5 more
wiley   +1 more source

Effects of operational taxonomic unit inference methods on soil microeukaryote community analysis using long‐read metabarcoding

open access: yesEcology and Evolution, Volume 12, Issue 3, March 2022., 2022
We use phylogenetic analysis to compare the effect of three different sequence clustering methods applied to long environmental rDNA amplicon sequences of soil microeukaryotic communities. We demonstrate that different clustering methods have a strong effect on estimated richness and identified taxa, but all methods recover large scale ecological ...
Shadi Eshghi Sahraei   +6 more
wiley   +1 more source

Setting the foundation for renewal: restoring sponge communities aids the ecological recovery of Florida Bay

open access: yesEcosphere, Volume 12, Issue 12, December 2021., 2021
Abstract Coastal ecosystems are constantly buffeted by anthropogenic forces that degrade habitats and alter ecological processes and functions; in turn, this habitat degradation diminishes the ecosystem goods and services on which humans rely. Within the last few decades, the field of restoration ecology has burgeoned into a discipline that marries ...
Jack Butler   +3 more
wiley   +1 more source

Características morfogênicas, estruturais e composição química de capim-aruana, submetido à adubação nitrogenada

open access: yesSemina: Ciências Agrárias, 2019
Objetivou-se avaliar as características morfogênicas, estruturais e a composição química do Panicum maximum Jacq. cv. Aruana sob diferentes doses de nitrogênio. O experimento foi instalado em delineamento de blocos casualizados com quatro tratamentos (0,
Alice Mariana Hupp Sacramento   +7 more
doaj   +1 more source

Suplementação de bovinos mantidos em pasto diferido de Brachiaria brizantha (cv. Marandu): parâmetros ruminais e degradabilidade - DOI: 10.4025/actascianimsci.v30i3.504

open access: yesActa Scientiarum: Animal Sciences, 2008
O trabalho teve o objetivo de determinar o efeito de suplementos concentrados energético (milho) e proteico (glutenose e farelo de soja) com diferentes degradabilidades da proteína, fornecidos em dois níveis (0,5 e 1,5 kg animal-1 dia-1), sobre os ...
João Ricardo Alves Pereira   +4 more
doaj   +1 more source

Genomic analysis reveals deep population divergence in the water snake Trimerodytes percarinatus (Serpentes, Natricidae). [PDF]

open access: yesEcol Evol
In this work, we used both mtDNA data and SNP data to explore the population genetic structure, genetic diversity, and evolutionary history of a widespread, semiaquatic, non‐venomous snake Trimerodytes percarinatus. We hope our present study will be of wide interest to systematic researchers and phylogeographers.
Lyu B   +9 more
europepmc   +2 more sources

Instabilidade meiótica em plantas invasoras de Brachiaria decumbens Stapf (Gramineae)

open access: yesActa Scientiarum: Biological Sciences, 2008
Brachiaria decumbens é uma gramínea tropical, nativa das savanas africanas, com ampla distribuição natural. Por outro lado, B. decumbens cv. Basilisk é uma gramínea perene amplamente utilizada nos trópicos como pastagem.
Andréa Beatriz Mendes Bonato   +3 more
doaj   +1 more source

Técnicas de estabelecimento da cultura sobre a produção de sementes de capim-pojuca Seed production of pojucagrass as influenced by crop establishment techniques

open access: yesCiência Rural, 2009
O capim-pojuca (Paspalum atratum cv. 'Pojuca') é uma gramínea tropical perene utilizada como pastagem cultivada. A produção de sementes dessa cultivar no ano agrícola do estabelecimento da cultura é irregular e, por essa razão, entre outubro/2002 e maio ...
Francisco Humberto Dübbern de Souza   +2 more
doaj   +1 more source

Efeito da adubação nitrogenada e irrigação sobre a composição químico-bromatológica das lâminas foliares e da planta inteira de capim-elefante sob pastejo Effect of nitrogen fertilization and irrigation on the chemical composition of the leaf blade and whole plant of elephantgrass under grazing

open access: yesRevista Brasileira de Zootecnia, 2007
Esta pesquisa foi desenvolvida com o objetivo de avaliar o efeito da adubação nitrogenada (100, 200, 300, 400 kg/ha/ano de N) e da irrigação (área irrigada - AI e não-irrigada - ANI) sobre a composição quimico-bromatológica da planta inteira (PI) (colmo ...
Claudio Mistura   +6 more
doaj   +1 more source

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