Results 81 to 90 of about 3,884 (165)

Birding via Facebook—Methodological Considerations When Crowdsourcing Observations of Bird Behavior via Social Media

open access: yesBirds
This paper outlines a methodology to compile geo-referenced observational data of Australian birds acting as pollinators of Strelitzia sp. (Bird of Paradise) flowers and dispersers of their seeds.
Dirk H. R. Spennemann
doaj   +1 more source

Analysis of long-term changes in populations of the Clanwiliam Cedar (Widdringtonia cedarbergensis) using repeat photography [PDF]

open access: yes, 2013
Repeat photography photosets were used to analyse 20th century changes in populations of Widdringtonia cedarbergensis from four sites in the Cederberg Mountains, South Africa. Systematic evaluation of 115 photosets was combined with field observation and
White, Joseph Douglas Mandla
core  

Levantamento de Plantas Ornamentais e Cochonilhas (Insecta, Hemiptera) associadas em residências de Ribeirão Preto, SP.

open access: yesOrnamental Horticulture, 2006
Este trabalho teve por objetivo conhecer a abundância e a freqüência de espécies ornamentais envasadas e utilizadas no paisagismo, em cinqüenta residências localizadas no município de Ribeirão Preto(SP), assim como identificar as famílias de cochonilhas ...
Claudia Fabrino Machado Mattiuz   +2 more
doaj   +1 more source

Ação de inibidores de enzimas oxidativas e crescimento bacteriano sobre a longevidade das flores de ave-do-paraíso (Strelitzia reginae Aiton)

open access: yesOrnamental Horticulture, 2011
Com o objetivo de avaliar a eficiência de inibidores das enzimas polifenoloxidase e peroxidase, além da participação do crescimento bacteriano nas hastes florais de ave-do-paraíso, soluções de vaso contendo inibidores das enzimas polifenoloxidase e ...
Ana Ermelinda Marques   +3 more
doaj   +1 more source

Mucinaea (Hyacinthaceae-Urgineoideae), a Remarkable New Genus from Namaqualand (Northern Cape Province, South Africa) [PDF]

open access: yes, 2013
We here describe a new genus from Namaqualand, which is based on Tenicroa nana Snijman. Mucinaea M. Pinter, Mart.-Azorín, U. Müll.-Doblies, D. Müll.- Doblies, Pfosser & Wetschnig gen. nov.
Crespo, Manuel B.   +8 more
core   +1 more source

Extinction risk and diversification are linked in a plant biodiversity hotspot [PDF]

open access: yes, 2011
It is widely recognized that we are entering an extinction event on a scale approaching the mass extinctions seen in the fossil record. Present-day rates of extinction are estimated to be several orders of magnitude greater than background rates and are ...
Davies, T. Jonathan   +12 more
core   +3 more sources

Planejamento paisagístico do prédio de cães e gatos (Hospital Veterinário) da UNESP/FCAV, Campus de Jaboticabal.

open access: yesOrnamental Horticulture, 2007
Visando adequar o entorno do prédio recém construído para atendimento de cães e gatos, do Hospital Veterinário da UNESP/FCAV, esse trabalho teve como objetivo fazer o planejamento paisagístico da área.
Camila Soares Rosa   +4 more
doaj   +1 more source

Efeito do silício em alguns componentes de resistência a antracnose em linhagens de sorgo. [PDF]

open access: yes, 2018
xEdição dos Resumos do XL Congresso Brasileiro de Fitopatologia, Maringá, PR, ago ...
CASELA, C. R.   +5 more
core  

The dwarf succulent genus Conophytum N.E.Br.: distribution, habitat and conservation. [PDF]

open access: yes
The dwarf succulent genus Conophytum N.E.Br. is one of the most species rich in the Aizoaceae. Primarily restricted to the arid winter-rainfall region of the Northern and Western Cape Provinces of South Africa and southwestern Namibia, the genus is most ...
Rodgerson, C, Young, AJ
core  

Towards balancing production and protection participatory landscape performance assessment in Kwazulu-Natal, South Africa [PDF]

open access: yes, 2010
Afin d'atteindre des objectifs simultanés de protection de la biodiversité et de production agricole dans un espace donné, il est nécessaire d'analyser le fonctionnement des espaces ruraux à l'échelle du paysage. Le présent article relate les résultats d'
Chitakira, Munyaradzi   +1 more
core   +1 more source

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