Results 31 to 40 of about 6,984 (121)

Grazing management strategies for massaigrass-forage peanut pastures: 1. dynamics of sward condition and botanical composition Estratégias de manejo do pastejo para pastos consorciados de capim-massai e amendoim forrageiro: 1. dinâmica da condição do pasto e da composição botânica

Revista Brasileira de Zootecnia, 2006
This study was carried out from October 2002 to December 2003 to evaluate the dynamics of sward condition and botanical composition of a mixed massaigrass (Panicum maximum x P. infestum, cv.
Carlos Mauricio Soares de Andrade, Rasmo Garcia, Judson Ferreira Valentim, Odilon Gomes Pereira   +3 more
doaj   +1 more source

Prevalence of traded bird species in key biodiversity areas

Conservation Biology, EarlyView.
Abstract The use and trade of biodiversity involve tens of thousands of species that are exploited at a range of scales, intensities, and degrees of sustainability. As a result, some are highly threatened. Key biodiversity areas (KBAs) are sites of significance for the persistence of biodiversity identified nationally based on standardized criteria ...
Oscar Morton, Tom Lansley, Stuart H. M. Butchart, Graeme M. Buchanan, David P. Edwards   +4 more
wiley   +1 more source

Avaliação de modelos não-lineares e da relação do consumo voluntário de vacas primíparas e de bezerros com a curva de lactação de vacas Nelore Evaluation of non-linear models and the effects of primiparous cows and calves intake on the lactation curve of Nelore cows

Revista Brasileira de Zootecnia, 2011
Procurou-se avaliar a precisão de cinco modelos não-lineares em descrever a forma da curva de produção de leite de vacas Nelore e o efeito do consumo voluntário (CV) da vaca e do bezerro sobre a produção de leite (PL). Foram testados os modelos de Sikka,
Lara Toledo Henriques, Sebastião de Campos Valadares Filho, Mozart Alves Fonseca, Pedro Veiga Rodrigues Paulino, Edenio Detmann, Rilene Ferreira Diniz Valadares   +5 more
doaj   +1 more source

Evaluating the protection status and exposure to warming of Caribbean reefs with high functional potential

Conservation Biology, EarlyView.
Abstract Over the past decades, climate change has emerged as a major threat to global biodiversity, negatively affecting the integrity and functioning of ecosystems and the benefits they provide to people. To mitigate these impacts, it is essential to identify climate refugia that support the persistence of the structure and function of reef ...
Sara M. Melo‐Merino, Andrés Lira‐Noriega, Enrique Martínez‐Meyer, Héctor Reyes‐Bonilla, Lorenzo Álvarez‐Filip   +4 more
wiley   +1 more source

Wood Thrush (Hylocichla mustelina) occupancy patterns reveal sensitivity to low precipitation on nonbreeding grounds in northern Costa Rica

Ibis, EarlyView.
Climatic change and anthropogenic disturbances are reshaping animal populations. Habitat loss and extreme climatic events are particularly strong drivers of declines in species that depend on forested areas. For migratory songbirds, climate and the persistence of suitable habitat over time are fundamental to sustaining populations annually.
Isabel Vargas‐Valverde, Natalie V. Sánchez, Manuel Spínola, Gerardo Avalos   +3 more
wiley   +1 more source

Comparação de alguns modelos matemáticos para o ajuste às curvas de lactação individuais de vacas da raça Caracu

Arquivo Brasileiro de Medicina Veterinária e Zootecnia, 2002
Foram ajustadas 7239 curvas de lactação de vacas Caracu, controladas semanalmente entre os anos de 1978 a 1988, pertencentes à Fazenda Chiqueirão, Poços de Caldas, MG. As funções utilizadas foram a linear hiperbólica (FLH), a quadrática logarítmica (FQL),
L.E. Faro, L.G. Albuquerque
doaj   +1 more source

Ecology of reintroduced Rocky Mountain bighorn sheep in Dinosaur National Monument La Ecología de Borrego Cimarron de las Montañas Rocosas Reintroducido en el Monumento Nacional de Dinosaurio

Wildlife Monographs, Volume 223, Issue 1, August 2026.
We synthesized GPS telemetry, genetic, and pathogen data to evaluate metapopulation processes in a reintroduced Rocky Mountain bighorn sheep (Ovis canadensis canadensis) population in Dinosaur National Monument. We estimated subpopulation‐specific abundances and found 4 small subpopulations with high genetic diversity, partial connectivity, and ...
Sarah L. Carroll, Elizabeth P. Flesch, Salix R. Scoresby, Emily Spencer, Rachel S. Crowhurst, Clinton W. Epps, Nathan L. Galloway, William M. Janousek, Tabitha A. Graves   +8 more
wiley   +1 more source

Desempenho de leguminosas nativas (Adesmia) e exóticas (Lotus, Trifolium), em função do estádio fenológico no primeiro corte Performance of native (Adesmia) and exotic (Lotus, Trifolium) legumes as for the phenological stage on first-cutting

Revista Brasileira de Zootecnia, 2005
Este trabalho foi desenvolvido com o objetivo de analisar aspectos fenológicos e produtivos de leguminosas nativas (Adesmia latifolia, A. tristis) e exóticas (Lotus corniculatus, L.
Simone Meredith Scheffer-Basso, Marice Cristine Vendruscolo, Dileta Cecchetti   +2 more
doaj   +1 more source

Tendência genética para persistência da lactação em vacas Gir leiteiro

Boletim de Indústria Animal, 2013
O artigo não apresenta resumo em português.
Manuela Pires Monteiro da Gama, Diego Augusto Campos Cruz, Carlos Henrique Cavalari Machado, Mariana Alencar Pereira, Lúcia Galvão de Albuquerque, Lenira El Faro   +5 more
openaire   +5 more sources

Demographic buffering in natural populations: A multi‐level perspective

Journal of Animal Ecology, Volume 95, Issue 8, Page 1298-1310, August 2026.
We introduce a multi‐level framework that unites stochastic elasticities with nonlinear selection to test demographic buffering. Applying it across mammals reveals a key insight: ecological robustness to variability often decouples from evolutionary constraint, reshaping how we understand resilience under environmental stochasticity.
Gabriel Silva Santos, Samuel J. L. Gascoigne, André Tavares Corrêa Dias, Maja Kajin, Roberto Salguero‐Gómez   +4 more
wiley   +1 more source