D. Wittmann

发表

Landmark orientation during the approach to the nest in the stingless beeTrigona (Tetragonisca) angustula (Apidae, Meliponinae)

J. Zeil, D. Wittmann, 1993, Insectes Sociaux.

Visually controlled station-keeping by hovering guard bees ofTrigona (Tetragonisca) angustula (Apidae, Meliponinae)

Jochen Zeil, Dieter Wittmann, J. Zeil, 2004, Journal of Comparative Physiology A.

Association of Institutes for Bee Research Report of the 57th Seminar in Bochum 23–25 March 2010

D. Wittmann, T. Schmickl, K. Crailsheim, 2010, Apidologie.

Bee diversity along a forest regeneration gradient in Western Kenya

D. Wittmann, M. Gikungu, D. Irungu, 2011 .

Diversity and activity density of bees visiting crop flowers in Kakamega, Western Kenya

D. Wittmann, C. Martius, M. Kasina, 2009 .

Stamen movements in flowers ofOpuntia (Cactaceae) favour oligolectic pollinators

C. Schlindwein, D. Wittmann, 1997, Plant Systematics and Evolution.

Callonychium petuniae, a new panurgine bee species (apoidea, andrenidae), oligolectic on petunia (solanaceae)

D. Wittmann, J. Cure, 1990 .

Farmers' knowledge of bees and their natural history in Kakamega district, Kenya

D. Wittmann, C. Martius, M. Kasina, 2009 .

Musty‐Earthy Scent in Cactus Flowers: Characteristics of Floral Scent Production in Dehydrogeosmin‐Producing Cacti

D. Wittmann, W. Boland, Maritta Kunert, 2004, International Journal of Plant Sciences.

Cephalic Volatiles Identified in Workers of Mourella caerulea, a Rare Stingless Bee Recently Rediscovered in Southern Brazil

D. Wittmann, W. Francke, G. Lübke, 1989 .

Handling sticky resin by stingless bees (Hymenoptera, Apidae)

D. Wittmann, M. Gastauer, L. Campos, 2011 .

Robber bees (Lestrimelitta limao) and their host chemical and visual cues in nest defense byTrigona (Tetragonisca) angustula (Apidae: Meliponinae)

J. Zeil, D. Wittmann, W. Francke, 1990, Journal of Chemical Ecology.

Aerial defense of the nest by workers of the stingless bee Trigona (Tetragonisca) angustula (Latreille) (Hymenoptera: Apidae)

D. Wittmann, 2004, Behavioral Ecology and Sociobiology.

Reliable Biometrical Analysis in Biodiversity Information Systems

Martin Drauschke, Volker Steinhage, Dieter Wittmann, 2007, PRIS.

Southern distributional limits of euglossine bees in Brazil linked to habitats of the Atlantic- and subtropical rain forest (Hymenoptera: Apidae: Euglossini)

D. Wittmann, M. Hoffmann, E. Scholz, 1988 .

Morphometrical, biochemical and molecular tools for assessing biodiversity. An example in Plebeia remota (Holmberg, 1903) (Apidae, Meliponini)

E. Morgan, D. Wittmann, V. Imperatriz-Fonseca, 2008, Insectes Sociaux.

Why males of leafcutter bees hold the females' antennae with their front legs during mating

D. Wittmann, B. Blochtein, 1995 .

Seasonality and Seasonal Changes in Preferences for Scent Baitsin Euplusia violacea in Rio Grande do Sul/Brazil(Hymenoptera: Apidae: Euglossini)

D. Wittmann, B. Blochtein, M. Hoffmann, 1989 .

Nest architecture and distribution of the primitive stingless bee, Mourella caerulea (hymenoptera, apidae, meliponinae): Evidence for the origin of plebeia (s. lat.) on the gondwana continent∗

D. Wittmann, J. Camargo, 1989 .

Identification of Africanized honey bees through wing morphometrics: two fast and efficient procedures

Martin Drauschke, Volker Steinhage, Dieter Wittmann, 2008, Apidologie.

BEHAVIORIAL STUDY ON HYPOTRIGONA GRIBODOI (HYMENOPTERA, APIDAE, MELIPONINI) WITH REFERENCE TO THE PROCESS OF PROVISIONING AND OVIPOSITION (POP)

D. Wittmann, Esther Nadine Otiobo Atibita, Seino Richard Akwanjoh, 2019 .

Pollination of Campanula rapunculus L. (Campanulaceae): How much pollen flows into pollination and into reproduction of oligolectic pollinators?

C. Schlindwein, D. Wittmann, I. C. Machado, 2005, Plant Systematics and Evolution.

Legitimate pollination of the tristylous flowers ofEichhornia azurea (Pontederiaceae) byAncyloscelis gigas bees (Anthophoridae, Apoidea)

D. Wittmann, I. Alves dos Santos, 2000, Plant Systematics and Evolution.

Diversity of bees (Hymenoptera, Apiformes) in extensive orchards in the highlands of Jordan

D. Wittmann, S. Zaitoun, Abdul-Majed Al-Ghzawi, 2006 .

Nectar dehydration by male carpenter bees as preparation for mating flights

D. Wittmann, E. Scholz, 1989, Behavioral Ecology and Sociobiology.

New odour glands in Xylocopa males (Hymenoptera: Apoidea: Anthophoridae).

D. Wittmann, B. Schlumpberger, 2000 .

Bee pollination enhances crop yield and fruit quality in Kakamega , Western Kenya.

D. Wittmann, C. Martius, M. Hagen, 2009 .

Coevolved reproductive strategies in the oligolectic bee Callonychium petuniae (Apoidea, Andrenidae) and three purple flowered Petunia species (Solanaceae) in southern Brazil

D. Wittmann, J. Cure, M. T. Schifino-Wittmann, 2009 .

Sporadic food competition with the African honey bee: projected impact on neotropical social bees

D. Roubik, D. Wittmann, C. H. Vergara, 1986, Journal of Tropical Ecology.

Micro‐Foraging Routes of Bicolletes pampeana (Colletidae) and Bee‐Induced Pollen Presentation in Cajophora arechavaletae (Loasaceae)

C. Schlindwein, D. Wittmann, 1997 .

Oviposition Behavior and Related Aspects of the Stingless Bees : XIV. Plebeia (Mourella) caerulea, with Comparative Notes on the Evolution of the Oviposition Patterns (Apidae, Meliponinae)

D. Wittmann, R. Zucchi, S. Sakagami, 1991 .

Bees of Rio Grande do Sul, Southern Brazil (Insecta, Hymenoptera, Apoidea)

D. Wittmann, M. Hoffmann, 1990 .

Nest Architecture, Nest Site Preferences and Distribution of Plebeia wittmanni (Moure & Camargo, 1989) in Rio Grande do Sul, Brazil (Apidae: Meliponinae)

D. Wittmann, 1989 .

Specialized solitary bees as effective pollinators of South Brazilian species of Notocactus and Gymnocalycium (Cactaceae)

C. Schlindwein, D. Wittmann, 1995, Bradleya.

Courtship behaviour in the genus Nomada – antennal grabbing and possible transfer of male secretions

D. Wittmann, S. Renner, M. Hofmann, 2018, Journal of Hymenoptera Research.

THE NEW KEY TO BEES: AUTOMATED IDENTIFICATION BY IMAGE ANALYSIS OF WINGS

Volker Roth, Armin B. Cremers, Volker Steinhage, 2002 .

Tasks partitioning among workers of Meliponula (Meliplebeia) Becarrii (Meliponini) in Cameroon

D. Wittmann, Njoya Moses Tita Mogho, 2013 .

Pollination of Nigella sativa L. (Ranunculaceae) in Jordan Valley to improve seed set

D. Wittmann, K. Abu-Hammour, 2011 .

Suppression of ovarian development of Bombus terrestris workers by B. terrestris queens, Psithyrus vestalis and Psithyrus bohemicus females

D. Wittmann, S. Schröder, C. H. Vergara, 2003 .

Biodiversity Informatics in Action: Identification and Monitoring of Bee Species using ABIS

Stefan Schröder, Tom Arbuckle, Volker Steinhage, 2001 .

Are stingless bees the primary vector in spread of banana Xanthomonas wilt in Central Uganda

D. Wittmann, F. Namu, 2014 .

Nest architecture and colony characteristics of Meliponula (Axestotrigona) ferruginea (Hymenoptera, Apidae, Meliponini) in Cameroon

D. Wittmann, Seino Richard Akwanjoh, M. T. M. Njoya, 2019, Journal of Biosciences.

Pattern Recognition Combining De-noising and Linear Discriminant Analysis within a Real World Application

Armin B. Cremers, Volker Roth, Stefan Schröder, 1999, CAIP.

Morphometric and genetic changes in a population of Apis mellifera after 34 years of Africanization.

M. Drauschke, D. Wittmann, V. Steinhage, 2009, Genetics and molecular research : GMR.

An African stingless bee Plebeina hildebrandti Friese nest size and design (Apidae, Meliponini)

D. Wittmann, F. Namu, 2017 .

Drone bees fixate the queen with the dorsal frontal part of their compound eyes

C. Wehrhahn, D. Wittmann, W. Ribi, 1980, Journal of comparative physiology.

Simulation of the oil storage process in the scopa of specialized bees

Thomas Stegmaier, Andreas Scherrieble, A. Rüttgers, 2015 .