Reproductive Ecology Of The Florida Scrub Jay Aphelocoma Coerulescens On John F Kennedy Space Center Merritt Island National Wildlife Refuge

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Reproductive Ecology Of The Florida Scrub Jay Aphelocoma Coerulescens On John F Kennedy Space Center Merritt Island National Wildlife Refuge

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Author : National Aeronautics and Space Adm Nasa
language : en
Publisher:
Release Date : 2018-09-29

Reproductive Ecology Of The Florida Scrub Jay Aphelocoma Coerulescens On John F Kennedy Space Center Merritt Island National Wildlife Refuge written by National Aeronautics and Space Adm Nasa and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-09-29 with categories.

From 1988 to 2002 we studied the breeding ecology of Florida Scrub-Jays (Aphelocoma coerulescens) on John F. Kennedy Space Center/Merritt Island National Wildlife Refuge. We examined phenology, clutch size, hatching failure rates, fledgling production, nest success, predation rates, sources egg and nestling mortality, and the effects of helpers on these measures. Nesting phenology was similar among sites. Mean clutch size at Titan was significantly larger than at HC or T4. Pairs with helpers did not produce larger clutches than pairs without helpers. Fledgling production at T4 was significantly greater than at HC and similar to Titan. Pairs with helpers at HC produced significantly more fledglings than pairs without helpers; helpers did not influence fledgling production at the other sites. Nest success at HC and Titan was low, 19% and 32% respectively. Nest success at T4 was 48% and was significantly greater than at HC. Average predation rates at all sites increased with season progression. Predation rates at all sight rose sharply by early June. The main cause of nest failure at all sites was predation, 93%. Carter, Geoffry M. and Breininger, David R. and Larson, Vicky L. and Oddy, Donna M. and Smith, Rebecca B. and Stolen, Eric D. Kennedy Space Center NASA/TM-2005-212562...

Improving The Regulatory Process In Southwest Florida Lee And Collier Counties Florida

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Author :
language : en
Publisher:
Release Date : 2000

Improving The Regulatory Process In Southwest Florida Lee And Collier Counties Florida written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2000 with categories.

A Conservation Strategy For The Florida Scrub Jay On John F Kennedy Space Center Merritt Island National Wildlife Refuge An Initial Scientific Basis For Recovery

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Author :
language : en
Publisher:
Release Date : 1996

A Conservation Strategy For The Florida Scrub Jay On John F Kennedy Space Center Merritt Island National Wildlife Refuge An Initial Scientific Basis For Recovery written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1996 with categories.

A Conservation Strategy For The Florida Scrub Jay On John F Kennedy Space Center Merritt Island National Wildlife Refuge

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Author : National Aeronautics and Space Administration (NASA)
language : en
Publisher: Createspace Independent Publishing Platform
Release Date : 2018-07-17

A Conservation Strategy For The Florida Scrub Jay On John F Kennedy Space Center Merritt Island National Wildlife Refuge written by National Aeronautics and Space Administration (NASA) and has been published by Createspace Independent Publishing Platform this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-07-17 with categories.

The Florida Scrub-Jay (Aphelocoma coerulescens) is an indicator of ecosystem integrity of Florida scrub, an endangered ecosystem that requires frequent fire. One of the largest populations of this federally threatened species occurs on John F. Kennedy Space Center/Merritt Island National Wildlife Refuge. Population trends were predicted using population modeling and field data on reproduction and survival of Florida Scrub-Jays collected from 1988 - 1995. Analyses of historical photography indicated that habitat suitability has been declining for 30 years. Field data and computer simulations suggested that the population declined by at least 40% and will decline by another 40% in 1 0 years, if habitat management is not greatly intensified. Data and computer simulations suggest that habitat suitability cannot deviate greatly from optimal for the jay population to persist. Landscape trajectories of vegetation structure, responsible for declining habitat suitability, are associated with the disruption of natural fire regimes. Prescribed fire alone can not reverse the trajectories. A recovery strategy was developed, based on studies of Florida Scrub-Jays and scrub vegetation. A reserve design was formulated based on conservation science principles for scrub ecosystems. The strategy emphasizes frequent fire to restore habitat, but includes mechanical tree cutting for severely degraded areas. Pine thinning across large areas can produce rapid increases in habitat quality. Site-specific strategies will need to be developed, monitored, and modified to achieve conditions suitable for population persistence. Breininger, D. R. and Larson, V. L. and Schaub, R. and Duncan, B. W. and Schmalzer, P. A. and Oddy, D. M. and Smith, R. B. and Adrian, F. and Hill, H., Jr. Kennedy Space Center COMPUTERIZED SIMULATION; ECOSYSTEMS; ENDANGERED SPECIES; MERRITT ISLAND (FL); CAPE KENNEDY LAUNCH COMPLEX; HABITATS; POPULATIONS; BIRDS; FOREST FIRES; SITE SELECTION; ENVIRONMENT EFFECTS; FOREST MAN...

The Florida Field Naturalist

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Author :
language : en
Publisher:
Release Date : 1988

The Florida Field Naturalist written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1988 with Birds categories.

Remote Sensing And Geographic Information Systems

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Author : Ann L. MacLean
language : en
Publisher:
Release Date : 1994

Remote Sensing And Geographic Information Systems written by Ann L. MacLean and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1994 with Geographic information systems categories.

Castanea

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Author :
language : en
Publisher:
Release Date : 1937

Castanea written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1937 with Botany categories.

The Florida Scrub Jay

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Author : Glen Everett Woolfenden
language : en
Publisher: Princeton University Press
Release Date : 1984

The Florida Scrub Jay written by Glen Everett Woolfenden and has been published by Princeton University Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 1984 with Science categories.

Florida Scrub Jays are an excellent example of a cooperative-breeding species, in which adult birds often help raise offspring not their own. For more than a decade Glen E. Woolfenden and John W. Fitzpatrick studied a marked population of these birds in an attempt to establish a demographic base for understanding the phenomenon of "helping at the nest." By studying both population biology and behavior, the authors found that habitat restraints, rather than kin selection, are the main source of the behavior of Florida Scrub Jays: the goal of increasing the number of close relatives other than descendants in future generations is of relatively minor importance in their cooperative-breeding behavior. The Florida Scrub Jay lives only in the Florida oak scrub. All acceptable habitat is constantly filled with breeders. Each year about half of the pairs are assisted by one to several nonbreeding helpers. This book provides extensive data on fecundity, survivorship, relatedness, and dispersal to establish the demographic milieu and to address questions arising out of observed helping behavior--whom, how, when, and why the helpers help.

The Florida Scrub Jay

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Author : Glen Everett Woolfenden
language : en
Publisher:
Release Date : 1984

The Florida Scrub Jay written by Glen Everett Woolfenden and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1984 with Science categories.

Florida Scrub Jays are an excellent example of a cooperative-breeding species, in which adult birds often help raise offspring not their own. For more than a decade Glen E. Woolfenden and John W. Fitzpatrick studied a marked population of these birds in an attempt to establish a demographic base for understanding the phenomenon of "helping at the nest." By studying both population biology and behavior, the authors found that habitat restraints, rather than kin selection, are the main source of the behavior of Florida Scrub Jays: the goal of increasing the number of close relatives other than descendants in future generations is of relatively minor importance in their cooperative-breeding behavior. The Florida Scrub Jay lives only in the Florida oak scrub. All acceptable habitat is constantly filled with breeders. Each year about half of the pairs are assisted by one to several nonbreeding helpers. This book provides extensive data on fecundity, survivorship, relatedness, and dispersal to establish the demographic milieu and to address questions arising out of observed helping behavior--whom, how, when, and why the helpers help.

Recovery Plan For The Florida Scrub Jay

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Author :
language : en
Publisher:
Release Date : 1990

Recovery Plan For The Florida Scrub Jay written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1990 with Birds categories.