Abstracts available here - Society for Conservation Biology
Abstracts available here - Society for Conservation Biology
Abstracts available here - Society for Conservation Biology
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25th International Congress <strong>for</strong> <strong>Conservation</strong> <strong>Biology</strong> • Auckland, New Zealand • 5-9 December 2011<br />
These findings resulted in the <strong>for</strong>mation of <strong>Conservation</strong> Through Public<br />
Health (CTPH) in 2003, a registered Ugandan NGO and US non-profit,<br />
whose focus is the interdependence of wildlife health and human health in<br />
and around Africa’s protected areas. CTPH implements three integrated<br />
Population, Health and Environment (PHE) programs to address<br />
these issues: wildlife health monitoring, community public health and<br />
in<strong>for</strong>mation, communication and technology, through partnerships with<br />
governments and local communities.<br />
2011-12-08 15:00 Taking Eradication Funding and Measurable<br />
Outcomes One Step Further – Restoring Island Ecosystems<br />
Kappes, P*, Oregon State University; Jones, HP, UC Santa Cruz;<br />
Islands contain a significant proportion of global biodiversity. Seabirds<br />
are ecosystem drivers that support islands and their associated biodiversity<br />
through guano fertilization. Un<strong>for</strong>tunately, invasive mammals have ravaged<br />
insular ecosystems and seabird populations around the globe, resulting<br />
in devastating ecosystem-scale effects. In response to these dual threats,<br />
invasive mammals have been eradicated from islands throughout the world.<br />
The goal of these removal campaigns is to ecosystem recovery but it remains<br />
unclear if island ecosystems can recover passively, especially w<strong>here</strong> seabirds<br />
do not readily recover. We advocate that the island restoration community<br />
incorporate seabird restoration techniques into eradication projects to<br />
enhance conservation outcomes. Joining the two ef<strong>for</strong>ts allows practitioners<br />
to initiate seabird restoration soon after eradications, increasing the chances<br />
of luring any remaining birds with experience breeding at that location.<br />
Because considerable time and money is put into funding, public approval,<br />
planning, building infrastructure, and per<strong>for</strong>ming both eradication and<br />
seabird restoration projects, it makes sense to treat seabird restoration as<br />
part of eradication projects, rather than reinvesting time and money to<br />
initiate a new restoration project. We encourage practitioners to look <strong>for</strong><br />
opportunities to integrate seabird restoration and eradication programs, in<br />
order to truly restore island ecosystems and the biodiversity they support.<br />
2011-12-07 16:42 Should we use pedigrees to detect inbreeding<br />
depression when the founders might be related?<br />
Kardos, MK*, University of Montana; Luikart, G, University of<br />
Montana; Allendorf, FW, University of Montana;<br />
Habitat destruction and overexploitation of species may often decrease<br />
population sizes and increase the frequency of inbreeding (mating between<br />
close relatives). Accurately assessing individual inbreeding is necessary<br />
to fully understand its importance to individual fitness and population<br />
growth. The historically preferred method to measure inbreeding is to use<br />
a pedigree to calculate an individual’s inbreeding coefficient (F) which is<br />
the reduction in heterozygosity due to parents being related; this method<br />
assumes that the pedigree founders are both non-inbred and unrelated to<br />
one another. We used simulated populations with full pedigrees to assess<br />
the effects of violating these assumptions on the ability of F to approximate<br />
the true level of inbreeding and to estimate the strength of inbreeding<br />
depression. Violating the assumption of non-inbred pedigree founders had<br />
little effect of the relationship between F and the true level of inbreeding.<br />
However, when approximately 40-90% of pedigree founders were closely<br />
related, F was a poor approximation of the true level of inbreeding and the<br />
power to detect inbreeding depression was severely reduced, particularly<br />
when pedigrees containing fewer than ten generations were used. Our<br />
results suggest that pedigree-based estimates of inbreeding and its effects<br />
on fitness may be unreliable when a large proportion of pedigree founders<br />
are closely related.<br />
2011-12-06 14:45 Repair and Recovery of Damaged Nature<br />
Kareiva, P., The Nature Conservancy; Jones, H.*, UC Santa Cruz;<br />
Marvier, M., Santa Clara University; Fuller, E., The Nature<br />
Conservancy; Zavaleta, E., UC Santa Cruz;<br />
Human impacts on earth have been huge, and numerous environmental<br />
assessments have pointed out that the ability of ecosystem services to<br />
support human wellbeing are declining globally due to ecosystem damage.<br />
Moreover, ongoing growth in the human population and in human<br />
demands <strong>for</strong> food and energy are sure to further stress nature. A key<br />
question is to what extent can nature and ecosystems recover from damage<br />
and egregious environmental insults? We are undertaking a systematic<br />
examination of case studies of recovery and repair or lack of recovery<br />
and repair. Preliminary results suggest mean perturbation magnitudes are<br />
highest <strong>for</strong> agriculture, eutrophication and invasive species perturbations.<br />
Species abundances are affected more strongly than species diversity by<br />
perturbations and species diversity variables recovered more quickly than<br />
species abundance variables. Our analysis indicates authors’ interpretations<br />
sometimes do not match up with our objective recovery estimates, with<br />
authors tending to underplay recovery. Resilience decreases from annual<br />
species to those with longer generation times. Grasses have higher resilience<br />
than do tree species and invertebrates have much higher resilience than<br />
do birds and fish. We found no difference in resilience between different<br />
trophic levels. We hope to use these results to build recovery and resilience<br />
theory, help prioritize restoration projects, and identify the key metrics that<br />
drive ecosystem recovery following perturbations.<br />
2011-12-09 14:30 Implications of bird vs. monkey seed dispersal<br />
behavior <strong>for</strong> genetic structuring of palm populations<br />
Karubian, J, Tulane University; Ottewell, K*, Tulane University; di<br />
Fiore, A, New York University; Link, A, New York University;<br />
In tropical rain<strong>for</strong>ests, up to 85% of tree species rely on seed dispersal<br />
by frugivorous vertebrates, but many of these animals are declining as a<br />
result of overhunting and loss of habitat. The extent to which this will<br />
impact on the tree species they disperse is unclear as it is challenging to<br />
quantify seed dispersal patterns due to the long range movements of animal<br />
vectors. Some vertebrates, however, exhibit behaviors w<strong>here</strong>by seeds are<br />
moved to a particular destination (e.g. roosting sites) resulting in clumped<br />
distributions of seeds at these sites, allowing us insight into the implications<br />
of particular dispersal behaviors <strong>for</strong> seed survival and genetic structuring of<br />
plant populations. Here we examine the effects of destination-based seed<br />
dispersal behavior by two endangered large-bodied frugivorous vertebrates,<br />
Long-Wattled Umbrellabirds (Cephalopterus penduliger) and Spider<br />
Monkeys (Ateles belzebuth) on the genetic structuring of seedling pools of<br />
the widespread palm, Oenocarpus bataua, at <strong>for</strong>est sites in Ecuador. Using<br />
genetic identification techniques we quantify the number and diversity<br />
of seed sources represented in pools of seedlings found either in Male<br />
Umbrellabird leks or underneath Spider Monkey sleeping trees, relative<br />
to “background” seedling pools located away from these focal points. We<br />
show that vertebrate dispersal behavior can have a profound impact on the<br />
distribution of genetic diversity in recruiting populations of O. bataua,<br />
and that the loss of these dispersal agents is likely to have negative genetic<br />
consequences <strong>for</strong> the palm.<br />
2011-12-09 15:00 Collaborative fisheries research enhances<br />
assessments and fosters stakeholder support <strong>for</strong> marine science<br />
Kay, MC*, UC Santa Barbara; Lenihan, HS, UC Santa Barbara;<br />
Wilson, JR, UC Santa Barbara; Miller, CJ, Cali<strong>for</strong>nia Lobster and<br />
Trap Fisherman’s Association;<br />
Assessment of fish populations and conservation policies such as marine<br />
reserves is difficult due to high costs and logistical challenges. In recent<br />
years, however, scientists are finding traditionally unlikely allies among<br />
commercial fishermen whose tools and talents can enhance fisheries<br />
research. In this study we describe two projects that demonstrate the<br />
scientific benefits of collaborative fisheries research (CFR) between<br />
academic scientists and lobster fishermen in Santa Barbara, Cali<strong>for</strong>nia.<br />
The first project is a marine reserve assessment in which sampling with<br />
fishing gear expands spatio-temporal coverage through comparison with<br />
historical fishery catch/ef<strong>for</strong>t records and a concurrent port sampling<br />
program. These comparisons reveal a four to eight-fold increase in trap<br />
yield and 5–10% increase in the mean size (carapace length) of lobsters<br />
inside vs. outside of reserves. A second project mobilizes fishermen in a tagrecapture<br />
program that provides detailed in<strong>for</strong>mation about lobster growth<br />
and movement. We used these data to estimate mortality outside reserves<br />
(Z=0.53) using a novel stock assessment method that is low cost, reserve<br />
based, and stakeholder driven. Our program successfully fosters stakeholder<br />
buy-in <strong>for</strong> marine science, and does so <strong>for</strong> a traditionally contentious issue<br />
(reserves), as evidenced by lobster industry advocacy <strong>for</strong> expansion of our<br />
CFR program throughout Cali<strong>for</strong>nia to monitor lobster population status<br />
and reserve per<strong>for</strong>mance statewide.<br />
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