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All years Observers: 1407 Cards: 103488 Records: 5468204 Incidentals: 425802 Pentads: 12940 (74.72%)
2014 Observers: 398 Cards: 4919 Records: 261208 Incidentals: 21898 Pentads: 2366 (13.66%)
AutumnMAP Observers: 289 Cards: 2058 Records: 104425 Incidentals: 7814 Pentads: 1267 (7.32%)
Latest News
SABAP2 doing awesomely in 2014; today we celebrate the milestone of a "MiniProject"

There is one thing that SABAP2 does better than any similar project, anywhere on this planet

You are awesome, Team SABAP2. You have made 20000 checklists for the Western Cape

Citizen Science Week : Saturday 8 March to Sunday 16 March

SABAP2 up to the end of February, 2014

SABAP2 at the end of the first half of February 2014

One hundred thousand checklists in the SABAP2 database: awesome milestone, well done, Team

Be part of the "Kruger Green Team"

These Four Degrees are on the cusp of a lot of milestones

Increasing in abundance, but not in range – Dark-capped Bulbul

How did we get along in the first half of November?

SABAP1 vs SABAP2: the Rock Dove aka Feral Pigeon

How to submit records to the Virtual Museums

SABAP2 strides ahead in October

Five million records

Project progress, first half of October

THIS COUNTDOWN CLOCK IS NOW BELOW 100

September progress with SABAP2

Intergovernmental Panel on Climate Change report released

Barberspan conference 28 November – 3 December 2013

Weaver Wednesday [66]: Sao Tome Weaver

Weaver Wednesday [65]: Black-necked Weaver

Sappi TREE TUESDAY, and today we are featuring the Knobbly Creeper

Today is Sappi TREE TUESDAY! The Weeping Sage Buddleja auriculata

Weaver Wednesday: Village Weaver

Public Lecture Wednesday 18 September "The metamorphosis of the butterfly atlas"

2000 up on Facebook

"Citizens who advance science"

This part of South Africa is especially important for annual coverage!

SpringMAP 2013

Weaver Wednesday: Cinnamon Weaver

Bring the trumpets out of the cupboard! Sound the fanfare

Virtual Museum records

Twenty years of CWACing the Bot River Estuary

Atlas bash to Loeriesfontein, Northern Cape, 8-11 August 2013

Save the date: 20-21 July 2013, SABAP2 workshop, Port Elizabeth

MyBirdPatch workshop: Intaka Island Enviro-Centre, Cape Town, Sat 8 June, 09:00 - 13:00

Making the most of the SABAP2 website - 5: checking your submissions and accessing your ORFs

SABAP2 workshop: Intaka Island, Century City – ths Saturday 11 May, 09h00 – 15h30

SABAP2 reaches 70% coverage in Limpopo

Making the most of the SABAP2 website - 5: checking your submissions and accessing your ORFs

Making the most of the SABAP2 website - 4: finding those gaps and other interesting pentad information!

SABAP2 workshop: Intaka Island, Century City, Sat. 11 May, 9:00 am - 3:30 pm

Weaver Wednesday: Golden Palm Weaver

Colour Rings on Swift Terns

Gravit8 Weaver Wednesday [44]: Speke's Weaver

Gravit8 Weaver Wednesday: Speckle-fronted Weaver

April Aliens – the Common Myna continues its march across the southern African landscape

April Aliens – if the voracious European Shore Crab reaches the Saldanha Bay-Langebaan Lagoon system, well, dot dot dot

The butterfly to think about on Threat Thursday is the Fraternal Widow

ADU Seminar: Wednesday 25 January: "On Valuing Patches: Estimating Contributions to Metapopulation Systems"

Richard Sherley (2012-01-19)

 

Kangaroo ratThe next ADU seminar will take place next week on Wednesday 25 January. Thanks to the work happening on the Gylcol System in Zoology, the venue for the seminar will be Lecture Theatre D in the RW James Building. The seminar will be from 13:15 to 14:15, to fit around the ADU’s course at the UCT Summer School.

Our speaker will be Dr James D Nichols, Senior Scientist at the U.S. Geological Survey's Patuxent Wildlife Research Center in Laurel, M.D. He is visiting the ADU during January and will give a seminar entitled "On Valuing Patches: Estimating Contributions to Metapopulation Systems".

Abstract: Forty years ago, Richard Levins (1969, 1970) introduced the concept of the metapopulation, formalizing the relevance of dispersal among local populations, both to those local populations and to the entire system. Ron Pulliam (1988) later considered the relative values of interacting local populations with his definitions of sources and sinks. Here, I follow the framework developed by Runge et al. (2006) and define contribution metrics reflecting the relative and absolute importance of each specific local population to population growth of (1) every other local population and (2) the entire system. I then describe reverse-time multistate capture-recapture models as a natural framework for drawing inferences about these contributions. Finally, I apply these models to a system of 8 local populations of the banner-tailed kangaroo rat (Dipodomys spectabilis) studied by Peter Waser in Arizona. The analysis yields contribution matrices for the entire system, with elements expressing the contributions of young and adults from each local population to adult population change in every other local subpopulation. The modeling permitted inferences about potential sources of variation in these contributions: (1) age, (2) general location of the local population in the system (central vs. peripheral), and (3) relative metapopulation size (years of high density and low density). I also present estimates of the relative contributions of each local population, and of extra-system immigration, to the entire metapopulation system.

 


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