Goals : 1)Provide recommenda3ons to Willow Park Zoo on how to s3mulate nes3ng building in Village Weavers. 2)Provide informa3on for zoo educator use in presenta3ons. Each step in nest building provides its own s3muli of termina3on and ini3a3on for the next step Experienced vs. inexperienced weavers Males aggressively guard territory Nest polarity Background Gregarious Males are Polygamists Endemic to the subSaharan region of Africa Colonial Nesters True Weavers Brood parasi3sm by Didric Cuckoo (Chrysococcyx caprius) Sexual Dimorphism Males exhibit nest dependence and guarding; perform nest adver3sement displays Agricultural pest Village Weavers, Ploceus cucullatus: It takes a Village to Weave a Nest Eliza Browning, Mentors: Dr. Kimberly Sullivan and Mr. Troy Cooper Nests The male weaves the nest, thatches the ceiling and adds an opening entrance aTer a female selects the nest and copula3on has occurred The female lines the nest if she accepts If the female rejects a nest, the male tears it down and rebuilds Diet (WPZ) 2 birds – fed 1x/day 2 beetles 4 mealworms 2 Tsp SoTbill diet 2 Tsp ground dog food 2 Tsp millet 1/2 chopped fruits and vegetables Fact Sheets for Presenta3ons: Sugges3ons to encourage Village Weavers to construct nests: Materials: green, flexible, 2535 cm long,( ~300 strands/nest) Diet: (3.9 kcal per nest/male); increase insects consump3on Sex Ra3o: playing calls of a female in morning Environment: Increasing the humidity (ex. Mis3ng), Breeding Rainy season 1 male mates with ~ 5 females Avg. clutch size is 23 eggs Significant Factors: Colony Size Availability of Age of Birds water and nest Sex Ra3o building material hbp://www.lynxeds.com/hbw/photo/villageweaver hbp://www.birdforum.net/opus/Ploceus_cucullatus Birds Nests, Sharon Cohen; pg 73 References Figure 1 and 2 – Collias, Nicholas E. and Elsie C. Collias. ‘An Experimental Study of the Mechanisms of Nest Building in a Weaverbird’, The Auk, Vol. 79, No. 4 (Oct., 1962), pp. 568595 Collias, Nicholas E. and Elsie C. Collias. ‘Nest Building and Bird Behavior’. Princeton, 1984. Print. Figure 1 Figure 2 Goals
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Goals: 1)Provide recommenda3ons to Willow Park Zoo on how to s3mulate nes3ng building in Village Weavers. 2)Provide informa3on for zoo educator use in presenta3ons.
-‐ Each step in nest building provides its own s3muli of termina3on and ini3a3on for the next step -‐Experienced vs. inexperienced weavers -‐ Males aggressively guard territory -‐ Nest polarity
Background -‐ Gregarious -‐ Males are Polygamists
-‐ Endemic to the sub-‐Saharan region of Africa
-‐Colonial-‐Nesters -‐ True Weavers -‐ Brood parasi3sm by Didric Cuckoo (Chrysococcyx caprius) -‐ Sexual Dimorphism -‐ Males exhibit nest dependence and guarding; perform nest adver3sement displays -‐ Agricultural pest
Village Weavers, Ploceus cucullatus: It takes a Village to Weave a Nest
Eliza Browning, Mentors: Dr. Kimberly Sullivan and Mr. Troy Cooper
Nests -‐ The male weaves the nest, thatches the ceiling and adds an opening entrance aTer a female selects the nest and copula3on has occurred -‐ The female lines the nest if she accepts If the female rejects a
nest, the male tears it down and rebuilds
Diet (WPZ) 2 birds – fed 1x/day -‐ 2 beetles -‐ 4 mealworms -‐2 Tsp SoT-‐bill diet -‐2 Tsp ground dog food -‐2 Tsp millet -‐1/2 chopped fruits and vegetables -‐
Fact Sheets for Presenta3ons:
Sugges3ons to encourage Village Weavers to construct nests: Materials: green, flexible, 25-‐35 cm long,( ~300 strands/nest) Diet: (3.9 kcal per nest/male); increase insects consump3on Sex Ra3o: playing calls of a female in morning Environment: Increasing the humidity (ex. Mis3ng),
Breeding Rainy season 1 male mates with ~ 5 females Avg. clutch size is 2-‐3 eggs Significant Factors: -‐ Colony Size -‐Availability of Age of Birds water and nest -‐ Sex Ra3o building material
hbp://www.lynxeds.com/hbw/photo/village-‐weaver
hbp://www.birdforum.net/opus/Ploceus_cucullatus
Birds Nests, Sharon Cohen; pg 73
References Figure 1 and 2 – Collias, Nicholas E. and Elsie C. Collias. ‘An Experimental Study of the Mechanisms of Nest Building in a Weaverbird’, The Auk, Vol. 79, No. 4 (Oct., 1962), pp. 568-‐595 Collias, Nicholas E. and Elsie C. Collias. ‘Nest Building and Bird Behavior’. Princeton, 1984. Print.
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Figure 1
Figure 2
Goals
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