Results 31 to 40 of about 144,420 (321)
The bumble bees (Hymenoptera: Apidae: Bombus) of Arkansas, fifty years later [PDF]
, 2015 Many species of bumble bees (Hymenoptera: Apidae: Bombus Latreille) are declining throughout their ranges in North America, yet detecting population trends can be difficult when historical survey data are lacking. In the present study, contemporary data
Szalanski, Allen L., Tripodi, Amber D.
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Alien plants in urban nature reserves : from red-list species to future invaders? [PDF]
, 2011 Urban reserves, like other protected areas, aim to preserve species richness but conservation efforts in these protected areas are complicated by high proportions of alien species.
Jarošík, Vojtěch +2 more
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Bothalia, 2006 ARCTOTIS DECURRENS (ARCTOTIDEAE). THE CORRECT NAME FOR A.
R. J. Mckenzie +2 more
openaire +3 more sources
Five newly recorded genera of vascular plants in Guangxi
Guangxi Zhiwu, 2023 Five newly recorded genera of vascular plants in Guangxi were reported, namely, Diodia L., Calyptocarpus Less., Syneilesis Maxim., Acroceras Stapf and Piptatherum P.
Suyun NONG +3 more
doaj +1 more source
Bothalia, 2004 Published as part of John H. Martin, 2004, Whiteflies of Belize (Hemiptera: Aleyrodidae). Part 1 — introduction and account of the subfamily Aleurodicinae Quaintance & Baker, pp.
P. P. J. Herman, M. Koekemoer
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Scorzonera sensu lato (Asteraceae, Cichorieae) – taxonomic reassessment in the light of new molecular phylogenetic and carpological analyses [PDF]
, 2020 Scorzonera comprises 180–190 species and belongs to the subtribe Scorzonerinae. Its circumscription has long been the subject of debate and available molecular phylogenetic analyses affirmed the polyphyly of Scorzonera in its wide sense.
Jones, Katy +6 more
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Anales del Jardín Botánico de Madrid, 2008 This paper is part of a periodical series based in a previous taxonomic study dealing with Centaurea paniculata L. group (Centaurea L. sect. Centaurea) in the Iberian Peninsula.
Eusebio López, Juan Antonio Devesa
doaj +1 more source
Slug grazing effects on seedling and adult life stages of North American Prairie plants used in designed urban landscapes [PDF]
, 2011 Designed vegetation is a major contributor to ecosystem service provision incities, and as such the study of how herbivory and other ecological factors determine its capacity to deliver such services, is long overdue.
Hitchmough, James, Wagner, Markus
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Morphometric analyses and new taxonomic circumscription of South American species of Flourensia (Asteraceae, Heliantheae, Enceliinae) [PDF]
, 2018 Flourensia (Asteraceae, Heliantheae, Enceliinae) is an amphitropical genus of resinous subshrubs, shrubs and small trees with 13 North American and 20 South American species among which disagreement on the species limits of some members still exists.
Aagesen, Lone +3 more
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