Abstracts available here - Society for Conservation Biology
Abstracts available here - Society for Conservation Biology
Abstracts available here - Society for Conservation Biology
Create successful ePaper yourself
Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.
25th International Congress <strong>for</strong> <strong>Conservation</strong> <strong>Biology</strong> • Auckland, New Zealand • 5-9 December 2011<br />
2011-12-06 14:15 Exploring benefits of interactions between vultures<br />
and famers through multi-agent modelling<br />
Dupont, H*, CNRS; Bobbe, S, Centre Edgar Morin; Sarrazin, F,<br />
CNRS;<br />
The vulture’s conservation relies in part on the management of their<br />
trophic resources, which is, in Europe, largely linked to farming activities<br />
and constrained by sanitary regulations. Feeding vultures can be seen as a<br />
beneficial activity both preserving these flagship species and maintaining<br />
ecological carcass elimination. We conducted an interdisciplinary<br />
framework on carcass removal by vultures in an agro pastoral context,<br />
coupling social investigations and ecological data. We developed a multiagent<br />
model in order to investigate the consequences of various local<br />
managements of carcass elimination on a population of vultures and on<br />
the benefits of such natural carcass removal. Our results underline the<br />
advantages of a carcass disposal system directly managed by farmers, called<br />
light feeding station. However, the persistence of the vulture population<br />
and the associated benefits depend on the utilization of the light feeding<br />
stations, relying on the farmers’ perceptions of vultures. We will report on<br />
the relevance of interdisciplinary approaches and multi-agent modelling <strong>for</strong><br />
applied research and management.<br />
2011-12-06 15:15 Saving wide ranging species: cheetah and wild dog<br />
Durant, SM*, Zoological <strong>Society</strong> of London/Wildlife <strong>Conservation</strong><br />
<strong>Society</strong>; Purchase, N, Zoological <strong>Society</strong> of London/Wildlife<br />
<strong>Conservation</strong> <strong>Society</strong>; Ogada, M, Zoological <strong>Society</strong> of London/<br />
Wildlife <strong>Conservation</strong> <strong>Society</strong>; Woodroffe, R, Zoological <strong>Society</strong> of<br />
London/Wildlife <strong>Conservation</strong> <strong>Society</strong>;<br />
Cheetah and wild dog are the widest ranging large carnivores in Africa.<br />
With home ranges that can exceed 1000km2, these species need massive<br />
areas <strong>for</strong> their survival. Even the best protected areas harbour populations<br />
of cheetah and wild dog less than 10% of that of lions and their survival<br />
requires a new approach to conservation. This has led to the development<br />
of the range-wide conservation process <strong>for</strong> cheetah and wild dogs,<br />
combining the species as they have similar conservation needs, and two<br />
species rather than one increases leverage. The process has the ambitious<br />
aim of securing the survival of both species across their range in Africa, by<br />
engaging support at all levels, from local communities to governments, and<br />
establishing capacity <strong>for</strong> sustainable conservation. Regional strategies have<br />
been established <strong>for</strong> eastern and southern Africa, two regional co-ordinators<br />
are in place and 9 countries have developed national conservation action<br />
plans. Declines of cheetah and wild dog have been documented from much<br />
of their range: cheetah and wild dog are currently resident in less than 15%<br />
of their historical range. Here we describe this approach, and outline the<br />
current state of conservation <strong>for</strong> both species, and achievements made.<br />
2011-12-08 18:30 Unexpected genetic population structure in the Kea<br />
(Nestor notabilis)<br />
Dussex,N*, University of Otago, Department of Zoology; Jamieson,<br />
I. G., University of Otago, Department of Zoology; Robertson, B.<br />
C., University of Otago, Department of Zoology;<br />
The Kea (Nestor notabilis) is an endemic alpine parrot of the South Island<br />
of New Zealand. After 150 years of persecution, it was fully protected in<br />
1986, but the species is still declining over its whole range. Here I present<br />
data from twelve microsatellite markers <strong>for</strong> 400 Kea from nine populations<br />
along the length of the South Island. Kea are known to have considerable<br />
dispersal capabilities and are sometimes sighted far from their alpine<br />
habitat. It is t<strong>here</strong><strong>for</strong>e expected that such a potential <strong>for</strong> gene flow would<br />
make distant populations less genetically differentiated. However, we found<br />
a significant isolation by distance (IBD) pattern. Moreover, three distinct<br />
genetic clusters were identified with little areas of genetic admixture. Our<br />
data suggest that kea population may have been separated during the last<br />
glaciations. We discuss possible causes <strong>for</strong> this unexpected population<br />
structure, including social behaviour and call differences as a barrier to<br />
dispersal and the “beech-gap” hypothesis.<br />
2011-12-08 11:30 Age matters: Adult and juvenile survival rates will<br />
respond differently to climate change<br />
Dybala, Kristen*, University of Cali<strong>for</strong>nia, Davis;<br />
Established methods exist <strong>for</strong> identifying the impacts of environmental<br />
stressors on demographic processes, yet these methods have rarely been used<br />
to project the impacts of climate change. This study examined the effects<br />
of weather and density on adult and juvenile survival rates in a population<br />
of Song Sparrows (Melospiza melodia) in central coastal Cali<strong>for</strong>nia. Thirty<br />
years of mark-recapture data (N=4,608) were analyzed to test hypothesized<br />
effects of weather on survival, and to calculate expected average adult and<br />
juvenile survival rates under several climate change scenarios. Adult survival<br />
rates were most strongly and negatively affected by summer precipitation,<br />
and secondarily by winter weather. Juvenile survival was also most sensitive<br />
to breeding season conditions, but indirectly, through the effects of the<br />
previous winter’s weather on primary and secondary productivity. Under<br />
each of the climate change scenarios, the average adult survival rate is<br />
projected to increase, while the average juvenile survival rate is projected<br />
to decrease, due to warmer winter temperatures. This approach provides<br />
insight into the age group, time of year, and mechanisms that will drive<br />
the population’s response to climate change, which may warrant further<br />
investigation, more detailed monitoring, or even management intervention.<br />
2011-12-07 17:00 Genetic and demographic monitoring of southern<br />
right whales, Eubalaena australis, around New Zealand<br />
E. Carroll*, Laboratory of Molecular Ecology and Evolution, School<br />
of Biological Sciences, University of Auckland, Auckland 1010, New<br />
Zealand; S. Childerhouse, Australian Marine Mammal Centre,<br />
Australian Antarctic Division, DEWHA, Kingston, Tasmania,<br />
Australia; N. Patenaude, LGL Limited, Environmental Research<br />
Associates, King City, Ontario L7B 1A6; A. Alexander, Marine<br />
Mammal Institute and Department of Fisheries and Wildlife, Hatfield<br />
Marine Science Center, Oregon State University, Newport, OR<br />
97365, USA; D. Steel, Marine Mammal Institute and Department<br />
of Fisheries and Wildlife, Hatfield Marine Science Center, Oregon<br />
State University, Newport, OR 97365, USA; R. Constantine,<br />
School of Biological Sciences, University of Auckland, Auckland 1010,<br />
New Zealand; S. Smith, New Zealand Department of <strong>Conservation</strong>,<br />
Aquatic & Threats Unit, Wellington 6143, New Zealand; C.S. Baker,<br />
Marine Mammal Institute and Department of Fisheries and Wildlife,<br />
Hatfield Marine Science Center, Oregon State University, Newport,<br />
OR 97365, USA<br />
In the aftermath of intensive pre-industrial whaling in the 19th century<br />
and illegal Soviet whaling in the 20th century, no southern right whale<br />
was seen around the coast of New Zealand <strong>for</strong> over 30 years. However,<br />
a remnant population persisted in the subantarctic Auckland Islands. To<br />
describe the genetic and demographic status of the Auckland Islands right<br />
whales we collected skin biopsy samples during annual winter surveys from<br />
1995-1998 (n=354) and again from 2006-2009 (n=833). DNA profiles,<br />
including genetically identified sex, mtDNA haplotype and microsatellite<br />
genotype (13 loci) were used to identify individuals and to estimate<br />
abundance using genetic capture-recapture. The population was estimated<br />
to number 910 whales (95% CI 641, 1354) in 1998, representing