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2. Implications of insect responses to supernormal visual releasing stimuli in intersexual communication and flower-visiting behaviour: a review

Creator:
Kral, Karl
Format:
print, počítač, and online zdroj
Type:
article, články, journal articles, model:article, and TEXT
Subject:
Zoologie, hmyz, motýli, čmelák, opylovači, insects, butterflies, bumble bees, pollinators, visual stimuli, mating, foraging, orchid mimicry, food reward, floral size, floral symmetry, ultraviolet signals, 2, and 59
Language:
English
Description:
Animals, including human beings, tend to respond more strongly to stimuli that are associated with the highest relative rewards. This applies not only to food rewards but also to reproductive success. In the present review article this issue is discussed for insects in connection with intersexual communication and flower-visiting behaviour. Implications of the preference for supernormal visual releasing stimuli are examined from a sensory and evolutionary perspective, including a consideration of the choice of potential mates and recognition of the most rewarding flowers., Karl Kral., and Obsahuje bibliografii
Rights:
http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public

3. Ultrafialový svět rostlin. I. Jak vzniká zbarvení - od nositele k interpretovi

Creator:
Pavel Pecháček
Format:
print, bez média, and svazek
Type:
article, články, model:article, and TEXT
Subject:
Biologické vědy, ultrafialové záření, opylovači, rostliny, zrak, ultraviolet radiation, pollinators, plants, vision, ultrafialové světlo, ultrafialové spektrum, 2, and 57/59
Language:
Czech
Description:
Mnoho skupin živočichů disponuje zrakem citlivým na tzv. ultrafialové světlo. Jednou z takových skupin jsou i různí opylovači, kteří nám dobře známé květy mohou vidět v trochu odlišných barvách, než my. Na květech rostlin totiž často existují vzory patrné pouze v ultrafialové části spektra, které jsou pro člověka neviditelné. V první části seriálu o výskytu a významu těchto vzorů u rostlin se zabývá historií odhalování citlivosti živočichů na ultrafialové světlo, přibližuje otázky, jak funguje zrak a jakým způsobem ultrafialové zbarvení na povrchu organismů vzniká., The vision of many animal groups is sensitive to the so-called ultraviolet (UV) light. These groups include various pollinators, which may see flowers that are quite familiar to us in a different coloration. That is because flowers often feature patterns visible only in the UV part of the spectrum, and thus invisible to humans. This series deals with the occurrence of such patterns and their significance for plants. The first part recounts the history of discovering the sensibility of animals to UV light, expounds on the way how vision works, explains the origin of UV coloration on organismal surfaces., and Pavel Pecháček.
Rights:
http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public

4. Vybrané polinační systémy v horách západní Afriky ve světle současné vědy

Creator:
Michael Bartoš, Eliška Padyšáková, and Štěpán Janeček
Format:
print
Type:
article, články, model:article, and TEXT
Subject:
Botanika, opylování, opylovači, flóra, Afrika západní, 2, and 58
Language:
Czech
Description:
The existence of pollination syndromes and the degree of specialization in these systems are still discussed. Three examples from the tropical mountain communities in the Bamenda Highlands (Cameroon) show that a detailed knowledge of plants and their visitors and pollinator behavioral studies are necessary before evolutionary hypotheses can be formulated., Michael Bartoš, Eliška Padyšáková, Štěpán Janeček., and 7 barev. fot.
Rights:
http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public

5. Vztahy rostlin a opylovačů na louce aneb nejen botanici určují rostliny

Creator:
Janovský, Zdeněk
Format:
print
Type:
article, články, model:article, and TEXT
Subject:
Zoologie, rostliny, opylovači, rostlinná společenstva, 2, and 59
Language:
Czech
Description:
The honey bee is usually thought of as a key pollinator in cultural landscapes. Our results evidence that although it may be the most abundant, its importance is lower compared to hoverflies and bumblebees both in terms of the pollinated plant species number and the spectrum of vegetation types covered. The broad spectrum of hoverfly diets suggests the cause of their high importance as pollinators. and Zdeněk Janovský.
Rights:
http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public