Results 51 to 60 of about 369,684 (247)

Biología floral, sistema reproductivo y polinizadores efectivos de la bromelia epífita Tillandsia limbata

open access: yesBotan‪ical Sciences
Antecedentes: La familia Bromeliaceae presenta una de las radiaciones adaptativas más notables dentro de las angiospermas, en parte debido a su diversidad de estrategias reproductivas.
B. Tellez-Baños   +4 more
semanticscholar   +1 more source

There is always room for one more: mass visitation by nectarivorous bats recorded at urban Sumaúma trees (Ceiba pentandra)

open access: yesRevista Chilena de Historia Natural
Background In tropical South America, Ceiba pentandra (Malvaceae) is a native chiropterophilous tree frequently found in cities that stands out as a potential substantial floral resource for synanthropic bats, which exhibit unusual swarming behaviour ...
Sinzinando Albuquerque-Lima   +4 more
doaj   +1 more source

Floral induction, floral hormones and flowering [PDF]

open access: yes, 1972
The factors, influencing the synthesis and action of floral hormones, and possible differences between floral hormones in different plants were studied.
Pol, P.A., van der, Pol, P.A., van de
core  

Body mass and sex estimation from lower carnassial tooth morphometry in the endangered Iberian wolf (Canis lupus signatus): An ecomorphological analysis of sexual size dimorphism

open access: yesThe Anatomical Record, EarlyView.
Abstract The Iberian wolf (Canis lupus signatus) is an endangered subspecies characterized by highly fragmented populations and increasing human–carnivore conflict across the Iberian Peninsula. Although body mass strongly influences predator–prey dynamics and ecological performance, quantitative assessments of sexual size dimorphism (SSD) and body mass
Leonardo Cotts   +4 more
wiley   +1 more source

Aiouea riedeliana comb. nov. (Lauraceae) from Brazil, with an amended description and provisional extinction threat assessment

open access: yesNordic Journal of Botany, EarlyView.
Aiouea riedeliana (Kosterm.) P.L.R.Moraes and Brotto is the new combination for Cinnamomum riedelianum Kosterm., whose type‐bringing synonym is Persea riedelii Meisn. The placement of this taxon in Aiouea is presented, justified, and illustrated here, disagreeing with its previous classification in Ocotea, as Ocotea riedeliana (Kosterm.) Kottaim., then
Pedro Luís Rodrigues de Moraes   +2 more
wiley   +1 more source

Evolutionary steps in the reproductive biology of Annonaceae

open access: yesRevista Brasileira de Fruticultura, 2014
Flowers of Annonaceae are characterized by fleshy petals, many stamens with hard connective shields and numerous carpels with sessile stigmas often covered by sticky secretions. The petals of many representatives during anthesis form a closed pollination
Gerhard Gottsberger
doaj   +1 more source

BIOLOGIA FLORAL E REPRODUTIVA DE Agapanthus africanus (L.) HOFFMANNS (LILIACEAE)

open access: yesEstudos de Biologia, 2005
Foi realizado o estudo de biologia floral e reprodutiva de Agapanthus africanus (L.) Hoffmanns (Liliaceae), uma planta exótica, muito utilizada como ornamental em nosso ambiente urbano. Foram realizadas observações de campo, no Campus Curitiba da PUCPR, procurando constatar os visitantes e o seu comportamento na flor, assim como testes de viabilidade ...
Diogo Maurízio Zen, Luiz Antônio Acra
openaire   +2 more sources

FENOLOGIA, BIOLOGIA FLORAL E DISPERSÃO DE Simarouba amara AUBL. (SIMAROUBACEAE) EM MATA CILIAR NA CHAPADA DIAMANTINA, BAHIA

open access: yesAnais dos Seminários de Iniciação Científica, 2018
Simaroubaceae possui distribuição tropical, com 20-30 gêneros (Thomas 1990) e aproximadamente 200 espécies (Cronquist 1981). A família é caracterizada por produzir grande quantidade de substâncias amargas, em sua maioria, com propriedades farmacológicas (
Idelmara Pereira de Souza
semanticscholar   +1 more source

Ecologia reprodutiva de Dyckia encholirioides var. encholirioides (GAUD) Mez. (Bromeliaceae) em costões oceânicos em Florianópolis, Santa Catarina [PDF]

open access: yes, 2008
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro de Ciências Agrárias. Programa de Pós-Graduação em Recursos Genéticos Vegetais.Este estudo procurou descrever e caracterizar a ecologia reprodutiva de Dyckia encholirioides var ...
Krieck, Cristiane
core  

A plant–pollinator invasional meltdown: the Japanese pagoda tree Styphnolobium japonicum facilitates the invasion of the giant resin bee Megachile sculpturalis

open access: yesOikos, EarlyView.
An invasional meltdown can occur when a non‐native species facilitates the spread of another non‐native species in the invaded area, increasing its likelihood of survival or its ecological impact. Plant–pollinator systems pose an exceptional study system to test this concept, which remains poorly known.
Daniel Echeandía   +9 more
wiley   +1 more source

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