Gee Research Blog
The Best of Both Worlds:Planning for Ecosystem Win-Wins
Sun, 16 Nov 2014 12:25:44 +0000
The normal and healthy function of ecosystems is not only of importance in conserving biodiversity, it is of utmost importance for human wellbeing as well. Ecosystems provide us with a wealth of valuable ecosystem services from food to clean water and fuel, without which our societies would crumble. However it is rare that only a […]
The post The Best of Both Worlds:
Planning for Ecosystem Win-Wins appeared first on GEE Research.
Life Aquatic: Diversity and Endemism in Freshwater Ecosystems
Thu, 06 Nov 2014 11:22:07 +0000
Freshwater ecosystems are ecologically important, providing a home to hundreds of thousands of species and offering us vital ecosystem servies. However, many freshwater species are currently threatened by habitat loss, pollution, disease and invasive species. Recent research from GEE indicates that freshwater species are at greater risk of extinction than terrestrial species. Using data on […]
The post Life Aquatic:
Diversity and Endemism in Freshwater Ecosystems appeared first on GEE Research.
Handicaps, Honesty and VisibilityWhy Are Ornaments Always Exaggerated?
Thu, 23 Oct 2014 13:30:30 +0000
Sexual selection is a form of natural selection that favours traits that increase mating success, often at the expense of survival. It is responsible for a huge variety of characteristics and behaviours we observe in nature, and most conspicuously, sexual selection explains the elaborate ornaments such as the antlers of red deer and the tail […]
The post Handicaps, Honesty and Visibility
Why Are Ornaments Always Exaggerated? appeared first on GEE Research.
PREDICTS Project: Land-Use Change Doesn’t Impact All Biodiversity Equally
Mon, 13 Oct 2014 09:17:53 +0000
Humans are destroying, degrading and depleting our tropical forests at an alarming rate. Every minute, an area of Amazonian rainforest equivalent to 50 football pitches is cleared of its trees, vegetation and wildlife. Across the globe, tropical and sub-tropical forests are being cut down to make way for expanding towns and cities, for agricultural land […]
The post PREDICTS Project: Land-Use Change Doesn’t Impact All Biodiversity Equally appeared first on GEE Research.Read more...
Calculated Risks: Foraging and Predator Avoidance in Rodents
Fri, 03 Oct 2014 10:07:08 +0000
Finding food is one of the most important tasks for any animal – most animal activity is focused on this job. But finding food usually involves some risks – leaving the safety of your burrow or nest to go out into a dangerous world full of predators, disease and natural hazards. Animals should therefore be […]
The post Calculated Risks:
Foraging and Predator Avoidance in Rodents appeared first on GEE Research.
29 April 2013
‘All about sex in fish’
University of Santiago de Compostela, Spain
Date & Time:
||Wednesday, 8 May at 5pm|
|Venue:||Medical Sciences AV Hill Lecture Theatre (map)|
|Host:||Judith Mank (Ext 54228)|
Sex is a ubiquitous feature in the living world and, although a general consensus exists on its relevance for obtaining new genetic combinations for adaption, the presence of different sexes introduces new evolutionary scenarios for live. Sex determination is an especial developmental pathway, where an undifferentiated gonad is driven towards an ovary or a testis at a specific time of development mostly depending on the genetic constitution of the individual. Our view of sex determination and its evolution has been very influenced by the studies on Drosophila, mammals and birds, where a stable genetic mechanism reflected as a chromosome heteromorphism associated to a particular model of inheritance is present. Fish have demonstrated a very different pattern of sex evolution. Different genes and even environmental variants play a role and changes in sex determination can occur in a very short period of evolutionary time.
Page last modified on 29 apr 13 16:13