Jaime Collazo, PhD (Former Employee)
Science and Products
Filter Total Items: 91
An evaluation of rapid methods for monitoring vegetation characteristics of wetland bird habitat An evaluation of rapid methods for monitoring vegetation characteristics of wetland bird habitat
Wetland managers benefit from monitoring data of sufficient precision and accuracy to assess wildlife habitat conditions and to evaluate and learn from past management decisions. For large-scale monitoring programs focused on waterbirds (waterfowl, wading birds, secretive marsh birds, and shorebirds), precision and accuracy of habitat measurements must be balanced with fiscal and...
Authors
Brian G. Tavernia, James E. Lyons, Brian W. Loges, Andrew Wilson, Jaime A. Collazo, Michael C. Runge
Factors affecting wetland connectivity for wintering semipalmated sandpipers (Calidris pusilla) in the Caribbean Factors affecting wetland connectivity for wintering semipalmated sandpipers (Calidris pusilla) in the Caribbean
Wetland connectivity provides migratory shorebirds varying options to meet energy requirements to survive and complete their annual cycle. Multiple factors mediate movement and residency of spatially segregated wetlands. Information on these factors is lacking in the tropics, yet such information is invaluable for conservation design. The influence of seven biotic and abiotic factors on...
Authors
Morgan A. Parks, Jaime A. Collazo, Katsi R. Ramos Alvarez
Assessing climate-sensitive ecosystems in the southeastern United States Assessing climate-sensitive ecosystems in the southeastern United States
Climate change impacts ecosystems in many ways, from effects on species to phenology to wildfire dynamics. Assessing the potential vulnerability of ecosystems to future changes in climate is an important first step in prioritizing and planning for conservation. Although assessments of climate change vulnerability commonly are done for species, fewer have been done for ecosystems. To aid...
Authors
Jennifer Costanza, Scott Beck, Milo Pyne, Adam Terando, Matthew J. Rubino, Rickie White, Jaime Collazo
Change in numbers of resident and migratory shorebirds at the Cabo Rojo Salt Flats, Puerto Rico, USA (1985–2014) Change in numbers of resident and migratory shorebirds at the Cabo Rojo Salt Flats, Puerto Rico, USA (1985–2014)
North American migratory shorebirds have declined markedly since the 1980s, underscoring the importance of population surveys to conduct status and trend assessments. Shorebird surveys were conducted during three multi-year periods between 1985 and 2014 and used to assess changes in numbers and species composition at the Cabo Rojo Salt Flats, Puerto Rico, USA, a site of regional...
Authors
Morgan A. Parks, Jaime A. Collazo, Jose A. Colon, Katsi R. Ramos Alvarez, Oscar Diaz
Occupancy dynamics in human-modified landscapes in a tropical island: implications for conservation design Occupancy dynamics in human-modified landscapes in a tropical island: implications for conservation design
Aim Avian communities in human-modified landscapes exhibit varying patterns of local colonization and extinction rates, determinants of species occurrence. Our objective was to model these processes to identify habitat features that might enable movements and account for occupancy patterns in habitat matrices between the Guanica and Susua forest reserves. This knowledge is central to...
Authors
Julissa I. Irizarry, Jaime A. Collazo, Stephen J. Dinsmore
Climate change implications for tropical islands: Interpolating and interpreting statistically downscaled GCM projections for management and planning Climate change implications for tropical islands: Interpolating and interpreting statistically downscaled GCM projections for management and planning
The potential ecological and economic effects of climate change for tropical islands were studied using output from 12 statistically downscaled general circulation models (GCMs) taking Puerto Rico as a test case. Two model selection/model averaging strategies were used: the average of all available GCMs and the average of the models that are able to reproduce the observed large-scale...
Authors
Azad Henareh Khalyani, William A. Gould, Eric Harmsen, Adam J. Terando, Maya Quinones, Jaime A. Collazo
Science and Products
Filter Total Items: 91
An evaluation of rapid methods for monitoring vegetation characteristics of wetland bird habitat An evaluation of rapid methods for monitoring vegetation characteristics of wetland bird habitat
Wetland managers benefit from monitoring data of sufficient precision and accuracy to assess wildlife habitat conditions and to evaluate and learn from past management decisions. For large-scale monitoring programs focused on waterbirds (waterfowl, wading birds, secretive marsh birds, and shorebirds), precision and accuracy of habitat measurements must be balanced with fiscal and...
Authors
Brian G. Tavernia, James E. Lyons, Brian W. Loges, Andrew Wilson, Jaime A. Collazo, Michael C. Runge
Factors affecting wetland connectivity for wintering semipalmated sandpipers (Calidris pusilla) in the Caribbean Factors affecting wetland connectivity for wintering semipalmated sandpipers (Calidris pusilla) in the Caribbean
Wetland connectivity provides migratory shorebirds varying options to meet energy requirements to survive and complete their annual cycle. Multiple factors mediate movement and residency of spatially segregated wetlands. Information on these factors is lacking in the tropics, yet such information is invaluable for conservation design. The influence of seven biotic and abiotic factors on...
Authors
Morgan A. Parks, Jaime A. Collazo, Katsi R. Ramos Alvarez
Assessing climate-sensitive ecosystems in the southeastern United States Assessing climate-sensitive ecosystems in the southeastern United States
Climate change impacts ecosystems in many ways, from effects on species to phenology to wildfire dynamics. Assessing the potential vulnerability of ecosystems to future changes in climate is an important first step in prioritizing and planning for conservation. Although assessments of climate change vulnerability commonly are done for species, fewer have been done for ecosystems. To aid...
Authors
Jennifer Costanza, Scott Beck, Milo Pyne, Adam Terando, Matthew J. Rubino, Rickie White, Jaime Collazo
Change in numbers of resident and migratory shorebirds at the Cabo Rojo Salt Flats, Puerto Rico, USA (1985–2014) Change in numbers of resident and migratory shorebirds at the Cabo Rojo Salt Flats, Puerto Rico, USA (1985–2014)
North American migratory shorebirds have declined markedly since the 1980s, underscoring the importance of population surveys to conduct status and trend assessments. Shorebird surveys were conducted during three multi-year periods between 1985 and 2014 and used to assess changes in numbers and species composition at the Cabo Rojo Salt Flats, Puerto Rico, USA, a site of regional...
Authors
Morgan A. Parks, Jaime A. Collazo, Jose A. Colon, Katsi R. Ramos Alvarez, Oscar Diaz
Occupancy dynamics in human-modified landscapes in a tropical island: implications for conservation design Occupancy dynamics in human-modified landscapes in a tropical island: implications for conservation design
Aim Avian communities in human-modified landscapes exhibit varying patterns of local colonization and extinction rates, determinants of species occurrence. Our objective was to model these processes to identify habitat features that might enable movements and account for occupancy patterns in habitat matrices between the Guanica and Susua forest reserves. This knowledge is central to...
Authors
Julissa I. Irizarry, Jaime A. Collazo, Stephen J. Dinsmore
Climate change implications for tropical islands: Interpolating and interpreting statistically downscaled GCM projections for management and planning Climate change implications for tropical islands: Interpolating and interpreting statistically downscaled GCM projections for management and planning
The potential ecological and economic effects of climate change for tropical islands were studied using output from 12 statistically downscaled general circulation models (GCMs) taking Puerto Rico as a test case. Two model selection/model averaging strategies were used: the average of all available GCMs and the average of the models that are able to reproduce the observed large-scale...
Authors
Azad Henareh Khalyani, William A. Gould, Eric Harmsen, Adam J. Terando, Maya Quinones, Jaime A. Collazo