Zobrazeno 1 - 10
of 104
pro vyhledávání: '"Gerhard Gottsberger"'
Publikováno v:
Acta Botânica Brasílica, Vol 34, Iss 3, Pp 580-588 (2020)
ABSTRACT We report on the reproductive biology, pollinators, and thermogenesis of the widely distributed Araceae species, Xanthosoma striatipes. We analyzed the floral scent in one population and compared it to a previous study. Xanthosoma striatipes
Externí odkaz:
https://doaj.org/article/1c913899c7d9447b823e645cdcf05ae6
Publikováno v:
Rodriguésia, Vol 71 (2020)
Abstract A new species of Annonaceae, Annona longipedicellata, from the Brazilian Amazon is described and illustrated. It differs from A. hypoglauca and A. scandens, its closest two species, by much longer pedicels, densely covered red-brown hairs on
Externí odkaz:
https://doaj.org/article/1fc510f4e92b4e00be9e4df3218ba77b
Publikováno v:
Acta Botânica Brasílica, Vol 32, Iss 3, Pp 434-445 (2018)
ABSTRACT A comprehensive census of a hectare of cerrado s.s. in southeastern Brazil, a small-tree and scrub woodland physiognomy, allowed the evaluation of whether pollination and dispersal modes are correlated with the stratification of the vegetati
Externí odkaz:
https://doaj.org/article/3cbb03cd73e5482f900ea53de6b37d06
Publikováno v:
Acta Botânica Brasílica, Iss 0 (2018)
ABSTRACT The feeding of pollinating dynastid-scarab beetles on nutritious tissue of Annonaceae flowers results in macroscopically visible gnawing marks on petals. In the present paper, we present and discuss examples of such gnawing marks on Annonace
Externí odkaz:
https://doaj.org/article/0a3cf41a8f4b449b9ba30fc70a344cdd
Autor:
Gerhard Gottsberger
Publikováno v:
Revista Brasileira de Fruticultura, Vol 36, Iss spe1, Pp 32-43 (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 pollina
Externí odkaz:
https://doaj.org/article/2628851eda3e48d4b23661b680bae81a
Publikováno v:
Sociobiology, Vol 60, Iss 3, Pp 306-316 (2013)
The two cerrado palms Butia paraguayensis and Syagrus petraea were studied with regard to parasitizing and pollinating insects that visit their reproductive organs. At the study site in Botucatu, São Paulo State, both species occurred together, whil
Externí odkaz:
https://doaj.org/article/2ad6a0469ce74b51ab61ed6bbf2567fb
Autor:
Gerhard Gottsberger
Publikováno v:
Acta Botânica Brasílica, Iss 0 (2016)
ABSTRACT Data of six studied Neotropical Anaxagorea species are analyzed and discussed with respect to the population structure, flowering phenology, flower morphology, anthesis, scent emission, thermogenesis, floral visitors, breeding system, fruit-
Externí odkaz:
https://doaj.org/article/b2b861301ba34604b5be1158852de5f9
Autor:
Daniel Piechowski, Gerhard Gottsberger
Publikováno v:
Acta Botânica Brasílica, Vol 23, Iss 4, Pp 1162-1166 (2009)
Parkia pendula occurs in Brazil in Amazonia and in the northeastern Atlantic Forest. In the latter, its buds, nectar, and seedpod gum are discussed to be keystone resources for the mammalian fauna. To enhance the knowledge about these important nouri
Externí odkaz:
https://doaj.org/article/8716885fcaf94c60933ebe964e0eb0e7
Publikováno v:
Anales del Jardín Botánico de Madrid, Vol 71, Iss 2, Pp e009-e009 (2014)
The pollen/ovule (P/O) ratio has been used as predictor of the reproductive system of angiosperms (lowest P/O values correspond to obligate autogamous species while the highest correlate with obligate xenogamous species) but it does not keep for all
Externí odkaz:
https://doaj.org/article/638ca6ad4e1148f7b68c2ced69d6fd15
Autor:
Daniel Piechowski, Gerhard Gottsberger
Publikováno v:
Biotemas, Vol 22, Iss 1, Pp 175-177 (2009)
A goma da vagem de Parkia pendula: uma armadilha fatal para vertebrados. O uso da goma de vagens de Parkia pendula para capturar aves foi mencionado uma única vez na literatura. No presente trabalho apresentamos a observação de um indivíduo do la
Externí odkaz:
https://doaj.org/article/e86ae3e5982540e6a81d4f38ab57a824