How does the circulatory system evolve in animals?

In unicellular organism sometimes we come across plasmodesmata, they might have evolved in multicellular organisms as circulatory system.

31 December 2013 2,548 0 View

Does bigger body size of insects have better fitness benefits?

Bigger insects are usually associated with increased fecundity and with more allocation per offspring. But his is not the case for some insects.

09 October 2013 4,045 10 View

Any recommendations for methods to analyze elephant space-use (using GPS) and correlating this with changes in NDVI?

For my Masters I am looking into elephant space-use and its effect on vegetation change. I have elephant GPS collar data and was going to use Google Earth Engine to obtain NDVI values. I would...

16 February 2021 7,097 3 View

How to consider effects of rapid warm adaptation in modeling of ecological impacts of warming?

I would highly appreciate it if my fellow ecologists (biologists) provide their opinion on the thoughts below [esp., shortly tell us which path may be more effective, if they know another way, if...

15 February 2021 3,642 6 View

Mixed ANOVA or Multilevel modeling?

Hi everyone, I'm having some questions about choosing the right test for my experiment and I hope I can find help here! Here are the settings of the experiment: 1. participants are randomly...

14 February 2021 1,028 4 View

How do you annotate figures to show significance?

30 January 2021 1,008 3 View

Helicoverpa armigera eggs are not hatching in lab condition, why?

Dear RG friends, I am providing a complete H. armigera diet for larvae and maintaining the eggs in the growth chamber as well as in-room conditions. But since three months, eggs laid from the...

21 January 2021 5,546 32 View

Can't find an ancient zoology paper ?

I'm desperately looking for an old planarian paper which is cited here. Does anyone have an idea how to get hold of it...

21 January 2021 5,957 8 View

Genus name priority from the same publication (Zoology)?

I came across a recent taxonomic work, where two genera were synonymized. Both genera were published in a paper in 1922 by the original author who revised the family at that time. The original...

19 January 2021 1,920 4 View

Which statistical test to use to see if there is a significant difference between the vigilance of bird species at different feeders (in SPSS)?

I have gathered data on bird species visiting 4 hanging feeders in different locations and have calculated the proportion of time they have spent displaying vigilant behaviour while at the feeder....

18 January 2021 9,959 7 View

Can any one suggest the name of Litchi insect/predator?

Is it a type of Ambush bug or what? Thanks

14 January 2021 9,381 3 View

Does maternal potentiation work?

Has anybody been able to replicate finding of papers that show increased vocalization in mice pups after a brief period of interaction with their dam, also called maternal potentiation? We have...

11 January 2021 558 2 View