Friday, December 18, 2015

Field notes #1 Pilot Survey


Summary of test survey: 

Because this is a new study, we will be conducting a few test surveys. The purpose of the pilot survey was to evaluate the planned sampling design and to test out the camera, effectiveness of data sheet design and evaluate chosen survey sites. This is the information the team collected on our first test survey.

Date: 12/15/15

Survey start: 2:37pm        Survey End: 5:30pm

Official low Tide: 4:48pm

Conditions: sunny; 10% cloud cover; 84°

Water monitoring: pH 7.84         salinity 1.021 PPT



Bird Counts





Count
Behavior observed
Disturbance
Great Egret
7
F,R
0
Great Blue Heron
7
F,R
0
Little blue Heron
1
R
0
White Ibis
1
FO
0
Unidentifiable
2

0
*F=foraging
R= roosting/resting  
FO = fly over


NOTES: 

1. Water monitoring equipment: We could not calibrate the official monitoring equipment in time for pH testing; so we used fish tank monitoring strips as a test run. pH levels may not be accurate. Calibration will be completed before the official Study start date of Jan 8, 2016These measurements are not vital to the study, however offer an added layer of investigation to water quality issues and food sources

2. Survey times: we found the sample design of two hours on either side of high tide (using methods from the British Trust for Ornithology Waterbird Survey 2013-14 study) was not effective for this location. The low tide was not very low and very little of the mud flats were exposed until the official low tide times. Even then, only small portions were exposed.
We will be examining low tide/sunrise/sunset schedules to decide which is most effective for this location.
 
Team Members: Diane Arrieta; Leah Plocharczyk, Grant Kramer

Tuesday, November 24, 2015

New wading bird study


Seabird Study: Utilization of Estuarine and intertidal habitats at the John D. MacArthur State Park

Principal investigator: Diane Arrieta, MSc. 
Research Assistant: Leah Plocharczyk, MA
State permit #11171515

Internships available for Wilkes Honors students (approved by the honors college)

Spring semester internship is already full

This long term study plans to investigate the use of Estuarine and Intertidal Habitats by wading birds at low tide within park boundaries of the John D. MacArthur State Park, located in Riviera Beach, FL [Palm Beach County, FL]. The scheme aims to monitor, assess and regularly update information on the relative importance of inter-tidal feeding areas within park boundaries to document abundance and distribution patterns for the following species.

Species:

Table 1. Birds of the order Ciconiiformes in Florida (Sizemore, et. al., 2012)

Common Name
Species Name
Family
Status
Great Egret
Ardea alba
Ardeidae
Native
Snowy Egret
Egretta thula
Ardeidae
Native
Reddish Egret
Egretta rufescens
Ardeidae
Native
Cattle Egret
Bubulcus ibis
Ardeidae
Native*
Great Blue Heron
Ardea herodias
Ardeidae
Native
Tricolored Heron
Egretta tricolor
Ardeidae
Native
Little Blue Heron
Egretta caerulea
Ardeidae
Native
Black-crowned Night-Heron
Nycticorax nycticorax
Ardeidae
Native
Yellow-crowned Night-Heron
Nyctanassa violacea
Ardeidae
Native
Green Heron
Butorides virescens
Ardeidae
Native
American Bittern
Botaurus lentiginosus
Ardeidae
Native
Least Bittern
Ixobrychus exilis
Ardeidae
Native
Wood Stork
Mycteria americana
Ciconiidae
Native
Roseate Spoonbill
Platalea ajaja
Threskiornithidae
Native
White Ibis
Eudocimus albus
Threskiornithidae
Native
Glossy Ibis
Plegadis falcinellus
Threskiornithidae
Native
Sacred Ibis
Threskiornis aethiopicus
Threskiornithidae
Non-native
Scarlet Ibis
Eudocimus ruber
Threskiornithidae
Non-native
*Arrived in Florida VIA natural range expansion.


The objectives of our monitoring include:
1. Assess baseline seabird foraging rates at our four sites
2. Assess seabird roost utilization at sites
3. Assess distribution fluctuations between seasons and environmental conditions
4. Assess baseline levels of human-caused disturbance; especially in Lake Worth Cove 


Reference: 
Grant C. Sizemore, Martin B. Main, and Elise V. Pearlstine, 2015. Florida's Wading Birds: IFAS Extention. PUblication #WEC267 Available: https://edis.ifas.ufl.edu/uw309 



Thursday, October 22, 2015

New Galapagos Giant Tortoise Species (Chelonoidis; Testudines: Testudinidae) named.

A new article published on Plos ONe describes the events that led to naming a new species of Giant Tortoise on the island of Santa Cruz. Currently, the taxonomy of giant Galapagos tortoises (Chelonoidis spp.) is currently based on morphological characters and island of origin. Several studies over the past decade recorded multiple independent evolutionary lineages, prompting the need for taxonomic revision. The article goes on to report that “two evolutionarily and spatially distinct lineages on the western and eastern sectors of the island, known as the Reserva and Cerro Fatal populations, respectively” (Poulakakis, et. al, 2015).



Fig 1. Geographic distribution of the two known lineages of giant tortoises on Santa Cruz Island: Chelonoidis porteri (Reserva) and Chelonoidis sp. nov. (Cerro Fatal) (indicated in dark gray).
Light gray area connecting the distribution areas of the two species indicates agricultural land. Modified from Russello et al. [11].
doi:10.1371/journal.pone.0138779.g001

To read the full journal article and learn more about this new species click here.


Reference:
Poulakakis N, Edwards DL, Chiari Y, Garrick RC, Russello MA, Benavides E, et al. (2015) Description of a New Galapagos Giant Tortoise Species (Chelonoidis; Testudines: Testudinidae) from Cerro Fatal on Santa Cruz Island. PLoS ONE 10(10): e0138779. doi:10.1371/journal.pone.0138779



Wednesday, October 7, 2015

Meet the Scientist Lecture Series Hosted by Taras Oceanographic Foundation

Free science lectures held at The Jupiter Community High School (500 N, Military Trail, Jupiter, FL) Lectures are at 7:00 pm in the auditorium for the dates below:

DATE                     SPEAKERS    
                      
10/13/15              Rebekah Corlew              
    Max Planck Florida Institute for Neuroscience
   THEME : Thinking Like A Scientist

11/18/15             Tom Fitz                              
   Tom Fitz Production
   THEME : The Art of Wildlife Filmmaking

12/09/15             Joseph Marcellino, Danilo Gardi and Bob Gerber
                           IMEGA International
   THEME : Towards A Sustainable Future: Alternative Fuel Systems

01/13/16             Linda Emerson  Beach Guardians Atlantic Coast
   THEME : Mindful Beachcombing: Becoming Part of the Solution to                              Marine Plastic Pollution

02/10/16            Prof. Jon Moore, Ph.D. 
  Harriet L. Wilkes Honors College, Florida Atlantic University
  THEME : Oh God, It's Hideous! Deep-Sea Animals in the North Atlantic.

03/09/16           Tom Poulson, Ph.D.       
  Professor Emeritus, University of Illinois at Chicago
  THEME : Science as a Powerful Way of Learning While Having Fun

04/13/16            Barbara J Brunnick, Ph.D. & Benoit Duverneuil
  Palm Beach Dolphin Project & Coastal Dolphin Conservation

  THEME : Dolphin Research and Conservation – Using Drones to Expand a Long-  Term Study

https://taras.org/?q=meet-scientist-lecture-series