6 posts · 504 views
The personal ramblings of a marine biologist. Current news, cool research, systematics, taxonomy, history of science and more.
Kevin Zelnio
6 posts
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- August 25, 2010
- 09:00 PM
- 49 views
Mahjong-Induced Seizures
by Kevin Zelnio in The Online Laboratory of Kevin Zelnio
Mahjong indoctrination starts early in China.
Anyone that knows me outside of the blogosphere, knows I won’t turn down a good game of Mahjong. Part of the fun is figuring out which scoring system your host is going to use, because I swear to to this day it changes by the minute. “Oh, is that a [...]... Read more »
Chang RS, Cheung RT, Ho SL, & Mak W. (2007) Mahjong-induced seizures: case reports and review of twenty-three patients. Hong Kong medical journal, 13(4), 314-8. PMID: 17664536
- August 21, 2010
- 08:42 AM
- 94 views
Myrmecomorphy
by Kevin Zelnio in The Online Laboratory of Kevin Zelnio
I absolutely adore the theory of evolution. It has a divine predictive, the results so wondrous in and of themselves. During my studies into symbiosis I have seen alot of strange and unusual adaptations, but the deeper I dig they more they keep getting stranger and stranger. The word this week is:
Myrmecomorphy
Top: [...]... Read more »
Nelson, X., & Jackson, R. (2007) Complex display behaviour during the intraspecific interactions of myrmecomorphic jumping spiders (Araneae, Salticidae). Journal of Natural History, 41(25), 1659-1678. DOI: 10.1080/00222930701450504
- August 19, 2010
- 08:17 AM
- 40 views
Jumping Spiders Prefer Vegetated Corridors
by Kevin Zelnio in The Online Laboratory of Kevin Zelnio
Barriers to dispersal come in all shapes and sizes and not all are obvious. Baker conducted experiments with jumping spiders, Phidippus princeps (Salticidae) in which he manipulated corridors connecting patches of old growth fields (clover and alfalfa). Patches were either not connected (bare corridors), all connected, or partly connected by vegetated corridors (see schema [...]... Read more »
Baker, L. (2007) Effect of corridors on the movement behavior of the jumping spider Phidippus princeps (Araneae, Salticidae). Canadian Journal of Zoology, 85(7), 802-808. DOI: 10.1139/Z07-061
- August 15, 2010
- 04:16 PM
- 65 views
Wolf Spider Leg Regeneration Impairs Foraging
by Kevin Zelnio in The Online Laboratory of Kevin Zelnio
Study organism, photo from Uetz Lab (click through).
Wrinn & Uetz studied how leg loss and regeneration affected the condition, growth and development time of the wolf spider, Schizocosa ocreata (Lycosidae, photo at left). Spiders may amputate their legs as a defense strategy, but it’s not clear what trade-offs exist. For instance, if a spider [...]... Read more »
Wrinn, K., & Uetz, G. (2007) Impacts of leg loss and regeneration on body condition, growth, and development time in the wolf spider Schizocosa ocreata. Canadian Journal of Zoology, 85(7), 823-831. DOI: 10.1139/Z07-063
- August 10, 2010
- 09:08 PM
- 56 views
Some Snails Prefer Doing It Anti-Chiral
by Kevin Zelnio in The Online Laboratory of Kevin Zelnio
Most snails walk the line and stick with doing the dirty deed missionary-style. No one even thinks about any of that kinky, low-down, unholy ways of propagating the world. But Schilthuizen and colleagues report in the Journal of Evolutionary Biology (open access!) that one disgusting species of snail actually [...]... Read more »
SCHILTHUIZEN, M., CRAZE, P., CABANBAN, A., DAVISON, A., STONE, J., GITTENBERGER, E., & SCOTT, B. (2007) Sexual selection maintains whole-body chiral dimorphism in snails. Journal of Evolutionary Biology, 20(5), 1941-1949. DOI: 10.1111/j.1420-9101.2007.01370.x
- May 26, 2010
- 03:40 PM
- 200 views
Tahitian Tree Snail Avoid Extinction by Heading for the Mountains
by Kevin Zelnio in The Online Laboratory of Kevin Zelnio
Partula spp. from Society Islands. Photo Credit: Marc Agren
In a short, but sweet, paper by Lee et al. published in the Current Biology, there is a “glimmer of hope” for montane tahitian tree snails (Mollusca, Gastropoda, Partulidae, Partula spp.). They examined the mitochondrial haplotype diversity of tree snail specimens locked away [...]... Read more »
LEE, T., BURCH, J., JUNG, Y., COOTE, T., PEARCEKELLY, P., & OFOIGHIL, D. (2007) Tahitian tree snail mitochondrial clades survived recent mass extirpation. Current Biology, 17(13). DOI: 10.1016/j.cub.2007.05.006
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