Exogenous leptin promotes reproductive behavior during aphagia in red-sided garter snakes (Thamnophis sirtalis parietalis)

Wilson, Rachel; LeMaster, Michael P.; Lutterschmidt, Deborah I.

doi:10.1016/j.yhbeh.2020.104893

Cited by 3 publications

(1 citation statement)

References 70 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Reflecting high energy demands of reproduction, females also may feed more frequently than do conspecific males, especially if males forego feeding for mate-searching for an extended period of time each year (as in some other species of snakes: e.g. Goiran et al 2013;Cochran et al 2021;Wilson et al 2021). Habitat-associated divergences in the sexes and sizes of snakes captured by harvesters may affect harvest sustainability; for example, high offtake of reproductive females would have more impact on population viability than would removal of the same number of males (e.g.…”

Section: Fig 3 Relative Numbers Of Male Female and Juvenile Water Snakesmentioning

confidence: 99%

Abundance, demography, and harvesting of water snakes from agricultural landscapes in West Java, Indonesia

Kusrini

Manurung²,

Faz³

et al. 2022

Wildlife Res.

View full text Add to dashboard Cite

Context Across much of its geographic range, the masked water snake, Homalopsis buccata, is harvested each year in large numbers, questioning the sustainability of that offtake. Aims To quantify abundance and demography of water snakes in anthropogenically disturbed habitats in an area of West Java, where these snakes are subject to intensive harvest. Methods We accompanied professional snake-collectors, and conducted our own surveys of ponds and irrigation canals, to record the numbers and attributes (species, sex, size, etc.) of snakes that were captured using a variety of methods. Key results Snakes of several species were abundant, with mean capture rates of 32 666 snakes km−1 of irrigation canals, and 57 501 snakes km−2 of fishponds (9500 and 43 788 for H. buccata alone). Sex ratios of H. buccata were female-biased in ponds but not irrigation channels. Ponds underlain by deeper mud contained more snakes. Collecting methods varied among habitat types, in a way that reduced collateral risk to commercially farmed fish in ponds. Conclusions These water snakes are extremely abundant in Java, despite high levels of historical and continuing harvest. The inference of low population sizes for H. buccata in Indonesia, as presented in the IUCN Red List, is erroneous. Implications An ability to utilise anthropogenic resource subsidies (in this case, fish farmed in village ponds) allows some native predator species to attain remarkably high abundances, and to withstand intense efforts at harvesting.

show abstract

Section: Fig 3 Relative Numbers Of Male Female and Juvenile Water Snakesmentioning

confidence: 99%