My partner just sent me a link to a post by Marcio von Muhlen called We Need a Github of Science. I started using Github just recently. For those new to Github (like me), it is a web-based hosting service for software development projects that use the Git revision control system. Basically you can upload your code there, and anyone else can see it and … Continue reading Proceedings of the Hivemind B
I had an issue today where I wanted to create a custom .bst file for Biology Letters that would format as follows: 1. Parmesan C, Yohe G. 2003 A globally coherent fingerprint of climate change impacts across natural systems. Nature 421, 37–42. I was using makebst, incrementally editing my .dbj file, but I couldn’t seem to get that ‘.’ on the end of the author list … Continue reading Add period to end of last author (Biology Letters .bst)
Climate change has caused an advance in phenological events in many species. In migratory birds, the effects of warming flow causally up the trophic levels. For example, warmer temperatures lead to earlier plant phenology (e.g. budding), which leads to earlier peaks in the abundance of foods (e.g. insect larva) that are important to raising nestlings, which puts pressure upon birds to advance their own breeding … Continue reading Do birds sometimes respond to warming temperatures by delaying their phenology?
Food availability at the breeding site often has a peaked temporal profile such that food is very abundant for a short period of time. Therefore, migratory birds must also time their arrival such that there is adequate time to gather the resources needed for egg production, and time their nesting and laying so that nestlings can take advantage of these food peaks. Failure to do … Continue reading What is the relationship between lay date, mismatch, and overall fitness for migratory birds?
Climate change has caused an advance in phenological events in many species (Forchhammer et al. 1998, Chmielewski & Rotzer 2001, Parmesan & Yohe 2003, Edwards & Richardson 2004, Menzel et al. 2006, Beebee 2009). In migratory birds, the effects of warming flow causally up the trophic levels. For example, warmer temperatures lead to earlier plant phenology (e.g. budding) (Menzel et al. 2006, Schwartz et al. … Continue reading The problem of arrival time and prelaying period in migratory birds
McDonald-Madden (2010; TREE): Is monitoring worthwhile? The benefits of the information gained from monitoring do not always outweigh the costs of acquiring it. For example, if one’s management strategy is not dependent upon the state of the system, one does not need to monitor. Or if one is unsure about the cause of decline, it may make more sense to spend resources researching that rather … Continue reading Monitoring for conservation
Recently a colleague sent me some information on his model and a bunch of Mathematica .nb files. I don’t use Mathematica (if I felt the need for that kind of thing I’d go for Sage) and I don’t have access to it, so I started looking around for a way to export the notebook, say to pdf. I found an online nb to pdf converter … Continue reading libXmu.so.6 and libgthread-2.0.so.0 error, or getting Wolfram CDF Player working on Ubuntu
Allesina & Tang (2012 Nature): An extension of analytic, Wigner semicircle theorem-like, stability criteria to predator-prey, competition and mutualism cases. Finds predator-prey interactions permit stability in networks as large and complex as real ones. Hierarchy is: competition-mutualism mixture, random, predator-prey. Finds that stability is less likely when both predator-prey networks and mutualistic networks are given more realistic structure (i.e. niche-model structure and nestedness respectively). Continue reading Stability in large webs
Several reviews exist on the influence of evolution on food-web structure (Yoshida, 2006; Fussman et al., 2007; Loeuille & Loreau, 2009; Loeuille, 2010). In Brannstrom et al. (2008), we reviewed past theoretical modelling efforts to study food web structure, and the current state of large community evolution models to tackle the problem. The past decade has seen burgeoning growth in the development of large community … Continue reading Large community evolution models
I was recently reading a 2006 review of food web structure by Jennifer Dunne, which includes a very thorough discussion of static community models like the niche model (Williams & Martinez 2000, Nature), and I was struck again by how unclear it is – to me, anyway – what exactly it is that these static models represent. There’s no doubt that they do an excellent … Continue reading Link distribution in static community models like the niche model