Short-tailed pythons (Python breitensteini, P. brongersmai and P. curtus) are exploited in large numbers for the international leather trade, but their ecology remains poorly known. We quantify sexual dimorphism and reproductive output in P. breitensteini from Kalimantan and P. brongersmai from sites in north and south Sumatra. Sexual dimorphism was more evident in P. breitensteini (males less heavy-bodied than females, and with longer heads relative to body length) than in either population of P. brongersmai. Although having a smaller average adult body size, P. breitensteini had a larger clutch size (mean of 17.2 eggs, versus 12.6 and 14.5 in the two brongersmai populations), and a higher reproductive frequency (92% of adult-size females reproductive, versus 38 and 50%). Female pythons from Kalimantan laid their eggs in September through November whereas female P. brongersmai from north Sumatra oviposited from March to May, in keeping with their geographic position either side of the equator. Paradoxically, however, P. brongersmai from south Sumatra apparently lay eggs at the same time as their northern conspecifics, despite their latitudinal position corresponding to our P. breitensteini study site. Reproductive traits within tropical snakes may be more diverse than is currently understood, even within clades of closely related taxa.
You have requested a machine translation of selected content from our databases. This functionality is provided solely for your convenience and is in no way intended to replace human translation. Neither BioOne nor the owners and publishers of the content make, and they explicitly disclaim, any express or implied representations or warranties of any kind, including, without limitation, representations and warranties as to the functionality of the translation feature or the accuracy or completeness of the translations.
Translations are not retained in our system. Your use of this feature and the translations is subject to all use restrictions contained in the Terms and Conditions of Use of the BioOne website.
Vol. 66 • No. 4