Brooke E Crowley
Datos Biográficos
| ID | 3072305 |
|---|---|
| NOMBRE | Brooke E Crowley |
| NOMBRES | Brooke E |
| APELLIDO | Crowley |
| FIRMA | CROWLEY B E |
| AFILIACIONES | University of Cincinnati |
| ORCID | 0000-0002-8462-6806 |
| VERIFICADO | Sí |
| TOTAL DE OBRAS | 21 |
| TOTAL DE CITAS | 74 |
| TOTAL COMO AUTOR | 21 |
| TOTAL COMO EDITOR | 0 |
| PRIMER AÑO DE PUBLICACIÓN | 2011 |
| AÑO MÁS RECIENTE DE PUBLICACIÓN | 2023 |
| ÍNDICE H | 5 |
Is the damage worth it? Testing handheld XRF as a non-destructive analytical tool for determining biogenic bone and tooth chemistry prior to destructive analyses
Isotopic analysis is destructive and requires that a specimen retains its original (biogenic) chemical composition. A specimen's relative abundance of calcium and phosphorous (Ca/P) or carbonate and phosphate (CO 3 /PO 4 ) is often used to assess preservation. If a specimen's Ca/P or CO 3 /PO 4 is similar to modern specimens, a specimen's isotopic composition may be biogenic. However, most methods for measuring these proxies are destructive. More…
New radiocarbon dates reveal pan-Holocene deposition of rodents at Trouing Jérémie #5, a sinkhole in the western Tiburon Peninsula, Haiti
We present eight new radiocarbon dates for endemic and invasive rodents from Trouing Jérémie #5, a paleontologically-rich sink hole on the Tiburon Peninsula, Haiti. This includes new dates for two species that have been previously directly dated ( Isolobodon portoricensis and Brotomys voratus) as well as three endemic rodents which have no previous direct radiometric dates ( Plagiodontia velozi, Hexolobodon phenax, and Rhizoplagiodontia lemkei). …
Subfossil lemur discoveries from the Beanka Protected Area in western Madagascar
A new fossil site in a previously unexplored part of western Madagascar (the Beanka Protected Area) has yielded remains of many recently extinct vertebrates, including giant lemurs ( Babakotia radofilai , Palaeopropithecus kelyus , Pachylemur sp., and Archaeolemur edwardsi ), carnivores ( Cryptoprocta spelea ), the aardvark-like Plesiorycteropus sp., and giant ground cuckoos ( Coua ). Many of these represent considerable range extensions. Extant …
Advances in global bioavailable strontium isoscapes
Revisiting the Foraging Ecology and Extinction History of Two Endemic Vertebrates from Tenerife, Canary Islands
We used carbon (δ13C) and nitrogen (δ15N) isotopes to examine the foraging ecology of Tenerife giant rats (Canariomys bravoi) and lizards (Gallotia goliath) in northwestern Tenerife, which until recently, were the island’s largest terrestrial vertebrates. We combined new isotope data for 28 C. bravoi and 14 G. goliath with published regional data for both species and then compared these with data for co-occurring extant taxa and modern C3 plants.…
A new interpretation of Madagascar's megafaunal decline
Water uncertainty, ritual predictability and agricultural canals at Chaco Canyon, New Mexico
The Pueblo population of Chaco Canyon during the Bonito Phase (AD 800–1130) employed agricultural strategies and water-management systems to enhance food cultivation in this unpredictable environment. Scepticism concerning the timing and effectiveness of this system, however, remains common. Using optically stimulated luminescence dating of sediments and LiDAR imaging, the authors located Bonito Phase canal features at the far west end of the can…
Where did people forage in prehistoric Trinidad? Testing the utility of a multi-isotope approach for tracking the origins of terrestrial prey
Predation on Subfossil Prolemur simus by Multiple Predator Species at Ankarana Massif, Northern Madagascar
Variation in carbon isotope values among chimpanzee foods at Ngogo, Kibale National Park and Bwindi Impenetrable National Park, Uganda
Stable isotope values in primate tissues can be used to reconstruct diet in the absence of direct observation. However, in order to make dietary inferences, one must first establish isotopic variability for potential food sources. In this study we examine stable carbon isotope (δ(13) C) values for chimpanzee (Pan troglodytes) food resources from two Ugandan forests: Ngogo (Kibale National Park), and Bwindi Impenetrable National Park. Mean δ(13) C…
What did Hadropithecus eat, and why should paleoanthropologists care
Over 40 years ago, Clifford Jolly noted different ways in which Hadropithecus stenognathus converged in its craniodental anatomy with basal hominins and with geladas. The Malagasy subfossil lemur Hadropithecus departs from its sister taxon, Archaeolemur, in that it displays comparatively large molars, reduced incisors and canines, a shortened rostrum, and thickened mandibular corpus. Its molars, however, look nothing like those of basal hominins;…
Advances in primate stable isotope ecology—Achievements and future prospects
Stable isotope biogeochemistry has been used to investigate foraging ecology in non-human primates for nearly 30 years. Whereas early studies focused on diet, more recently, isotopic analysis has been used to address a diversity of ecological questions ranging from niche partitioning to nutritional status to variability in life history traits. With this increasing array of applications, stable isotope analysis stands to make major contributions t…
Quaternary chronostratigraphy and stable isotope paleoecology of Big Bone Lick, Kentucky, USA
Big Bone Lick (BBL) in northern Kentucky, USA has been a critical geologic site in the historical development of North American Quaternary vertebrate paleontology since the 1700s. Sedimentology, geoarcheology, paleontology, accelerator mass spectrometry radiocarbon and optically stimulated luminescence dating, and stable carbon and nitrogen isotope analyses were undertaken to develop a chronostratigraphy and history of erosion and deposition for …
Comparative and population mitogenomic analyses of Madagascar's extinct, giant 'subfossil' lemurs
Quantifying Inter-Laboratory Variability in Stable Isotope Analysis of Ancient Skeletal Remains
Over the past forty years, stable isotope analysis of bone (and tooth) collagen and hydroxyapatite has become a mainstay of archaeological and paleoanthropological reconstructions of paleodiet and paleoenvironment. Despite this method's frequent use across anthropological subdisciplines (and beyond), the present work represents the first attempt at gauging the effects of inter-laboratory variability engendered by differences in a) sample preparat…
Technical Note
Calcium stable isotope ratios are hypothesized to vary as a function of trophic level. This premise raises the possibility of using calcium stable isotope ratios to study the dietary behaviors of fossil taxa and to test competing hypotheses on the adaptive origins of euprimates. To explore this concept, we measured the stable isotope composition of contemporary mammals in northern Borneo and northwestern Costa Rica, two communities with functiona…
Stable isotopes complement focal individual observations and confirm dietary variability in reddish–gray mouse lemurs ( Microcebus griseorufus ) from southwestern Madagascar
We examine the ecology of reddish‐gray mouse lemurs from three habitats at Beza Mahafaly Special Reserve using focal follows and stable carbon and nitrogen isotope data. Focal observations indicate dietary differences among habitats as well as sexes and seasons. Both sexes consume more arthropods during the rainy season but overall, females consume more sugar‐rich exudates and fruit than males, and individuals from riparian forest consume fewer a…
Stable carbon isotope values confirm a recent increase in grasslands in northwestern Madagascar
Madagascar is home to some of the world’s most unique plants and animals. Unfortunately, anthropogenic forest loss has had a dramatic impact on both floral and faunal communities. In many regions the scale and timing of this loss remains poorly constrained. Such is the case for northwestern Madagascar. Pollen records for this region suggest that fires and grass abundance increased around 1000 calendar years before present (cal. BP), as well as c.…
Stable Isotope Techniques and Applications for Primatologists
A Noninvasive Method for Estimating Nitrogen Balance in Free-Ranging Primates
A glance to the past
The Spiny Thicket Ecoregion (STE) of Southern and southwestern Madagascar was recently home to numerous giant lemurs and other “megafauna,” including pygmy hippopotamuses, giant tortoises, elephant birds, and large euplerid carnivores. Following the arrival of humans more than 2,000 years ago, dramatic extinctions occurred. Only one‐third of the lemur species which earlier occupied the STE survive today; other taxa suffered even greater losses. W…
A new interpretation of Madagascar's megafaunal decline
Stable Isotope Techniques and Applications for Primatologists
Comparative and population mitogenomic analyses of Madagascar's extinct, giant 'subfossil' lemurs
Water uncertainty, ritual predictability and agricultural canals at Chaco Canyon, New Mexico
The Pueblo population of Chaco Canyon during the Bonito Phase (AD 800–1130) employed agricultural strategies and water-management systems to enhance food cultivation in this unpredictable environment. Scepticism concerning the timing and effectiveness of this system, however, remains common. Using optically stimulated luminescence dating of sediments and LiDAR imaging, the authors located Bonito Phase canal features at the far west end of the can…
A Noninvasive Method for Estimating Nitrogen Balance in Free-Ranging Primates
Stable isotopes complement focal individual observations and confirm dietary variability in reddish–gray mouse lemurs ( Microcebus griseorufus ) from southwestern Madagascar
We examine the ecology of reddish‐gray mouse lemurs from three habitats at Beza Mahafaly Special Reserve using focal follows and stable carbon and nitrogen isotope data. Focal observations indicate dietary differences among habitats as well as sexes and seasons. Both sexes consume more arthropods during the rainy season but overall, females consume more sugar‐rich exudates and fruit than males, and individuals from riparian forest consume fewer a…
Stable carbon isotope values confirm a recent increase in grasslands in northwestern Madagascar
Madagascar is home to some of the world’s most unique plants and animals. Unfortunately, anthropogenic forest loss has had a dramatic impact on both floral and faunal communities. In many regions the scale and timing of this loss remains poorly constrained. Such is the case for northwestern Madagascar. Pollen records for this region suggest that fires and grass abundance increased around 1000 calendar years before present (cal. BP), as well as c.…
Technical Note
Calcium stable isotope ratios are hypothesized to vary as a function of trophic level. This premise raises the possibility of using calcium stable isotope ratios to study the dietary behaviors of fossil taxa and to test competing hypotheses on the adaptive origins of euprimates. To explore this concept, we measured the stable isotope composition of contemporary mammals in northern Borneo and northwestern Costa Rica, two communities with functiona…
Predation on Subfossil Prolemur simus by Multiple Predator Species at Ankarana Massif, Northern Madagascar
Where did people forage in prehistoric Trinidad? Testing the utility of a multi-isotope approach for tracking the origins of terrestrial prey
A glance to the past
The Spiny Thicket Ecoregion (STE) of Southern and southwestern Madagascar was recently home to numerous giant lemurs and other “megafauna,” including pygmy hippopotamuses, giant tortoises, elephant birds, and large euplerid carnivores. Following the arrival of humans more than 2,000 years ago, dramatic extinctions occurred. Only one‐third of the lemur species which earlier occupied the STE survive today; other taxa suffered even greater losses. W…
Stable Isotope Techniques and Applications for Primatologists
A Noninvasive Method for Estimating Nitrogen Balance in Free-Ranging Primates
Stable carbon isotope values confirm a recent increase in grasslands in northwestern Madagascar
Madagascar is home to some of the world’s most unique plants and animals. Unfortunately, anthropogenic forest loss has had a dramatic impact on both floral and faunal communities. In many regions the scale and timing of this loss remains poorly constrained. Such is the case for northwestern Madagascar. Pollen records for this region suggest that fires and grass abundance increased around 1000 calendar years before present (cal. BP), as well as c.…
Quantifying Inter-Laboratory Variability in Stable Isotope Analysis of Ancient Skeletal Remains
Over the past forty years, stable isotope analysis of bone (and tooth) collagen and hydroxyapatite has become a mainstay of archaeological and paleoanthropological reconstructions of paleodiet and paleoenvironment. Despite this method's frequent use across anthropological subdisciplines (and beyond), the present work represents the first attempt at gauging the effects of inter-laboratory variability engendered by differences in a) sample preparat…
Technical Note
Calcium stable isotope ratios are hypothesized to vary as a function of trophic level. This premise raises the possibility of using calcium stable isotope ratios to study the dietary behaviors of fossil taxa and to test competing hypotheses on the adaptive origins of euprimates. To explore this concept, we measured the stable isotope composition of contemporary mammals in northern Borneo and northwestern Costa Rica, two communities with functiona…
Stable isotopes complement focal individual observations and confirm dietary variability in reddish–gray mouse lemurs ( Microcebus griseorufus ) from southwestern Madagascar
We examine the ecology of reddish‐gray mouse lemurs from three habitats at Beza Mahafaly Special Reserve using focal follows and stable carbon and nitrogen isotope data. Focal observations indicate dietary differences among habitats as well as sexes and seasons. Both sexes consume more arthropods during the rainy season but overall, females consume more sugar‐rich exudates and fruit than males, and individuals from riparian forest consume fewer a…
Quaternary chronostratigraphy and stable isotope paleoecology of Big Bone Lick, Kentucky, USA
Big Bone Lick (BBL) in northern Kentucky, USA has been a critical geologic site in the historical development of North American Quaternary vertebrate paleontology since the 1700s. Sedimentology, geoarcheology, paleontology, accelerator mass spectrometry radiocarbon and optically stimulated luminescence dating, and stable carbon and nitrogen isotope analyses were undertaken to develop a chronostratigraphy and history of erosion and deposition for …
Comparative and population mitogenomic analyses of Madagascar's extinct, giant 'subfossil' lemurs
Variation in carbon isotope values among chimpanzee foods at Ngogo, Kibale National Park and Bwindi Impenetrable National Park, Uganda
Stable isotope values in primate tissues can be used to reconstruct diet in the absence of direct observation. However, in order to make dietary inferences, one must first establish isotopic variability for potential food sources. In this study we examine stable carbon isotope (δ(13) C) values for chimpanzee (Pan troglodytes) food resources from two Ugandan forests: Ngogo (Kibale National Park), and Bwindi Impenetrable National Park. Mean δ(13) C…
What did Hadropithecus eat, and why should paleoanthropologists care
Over 40 years ago, Clifford Jolly noted different ways in which Hadropithecus stenognathus converged in its craniodental anatomy with basal hominins and with geladas. The Malagasy subfossil lemur Hadropithecus departs from its sister taxon, Archaeolemur, in that it displays comparatively large molars, reduced incisors and canines, a shortened rostrum, and thickened mandibular corpus. Its molars, however, look nothing like those of basal hominins;…
Advances in primate stable isotope ecology—Achievements and future prospects
Stable isotope biogeochemistry has been used to investigate foraging ecology in non-human primates for nearly 30 years. Whereas early studies focused on diet, more recently, isotopic analysis has been used to address a diversity of ecological questions ranging from niche partitioning to nutritional status to variability in life history traits. With this increasing array of applications, stable isotope analysis stands to make major contributions t…
Where did people forage in prehistoric Trinidad? Testing the utility of a multi-isotope approach for tracking the origins of terrestrial prey
Predation on Subfossil Prolemur simus by Multiple Predator Species at Ankarana Massif, Northern Madagascar
Water uncertainty, ritual predictability and agricultural canals at Chaco Canyon, New Mexico
The Pueblo population of Chaco Canyon during the Bonito Phase (AD 800–1130) employed agricultural strategies and water-management systems to enhance food cultivation in this unpredictable environment. Scepticism concerning the timing and effectiveness of this system, however, remains common. Using optically stimulated luminescence dating of sediments and LiDAR imaging, the authors located Bonito Phase canal features at the far west end of the can…
Revisiting the Foraging Ecology and Extinction History of Two Endemic Vertebrates from Tenerife, Canary Islands
We used carbon (δ13C) and nitrogen (δ15N) isotopes to examine the foraging ecology of Tenerife giant rats (Canariomys bravoi) and lizards (Gallotia goliath) in northwestern Tenerife, which until recently, were the island’s largest terrestrial vertebrates. We combined new isotope data for 28 C. bravoi and 14 G. goliath with published regional data for both species and then compared these with data for co-occurring extant taxa and modern C3 plants.…
A new interpretation of Madagascar's megafaunal decline
Subfossil lemur discoveries from the Beanka Protected Area in western Madagascar
A new fossil site in a previously unexplored part of western Madagascar (the Beanka Protected Area) has yielded remains of many recently extinct vertebrates, including giant lemurs ( Babakotia radofilai , Palaeopropithecus kelyus , Pachylemur sp., and Archaeolemur edwardsi ), carnivores ( Cryptoprocta spelea ), the aardvark-like Plesiorycteropus sp., and giant ground cuckoos ( Coua ). Many of these represent considerable range extensions. Extant …
Advances in global bioavailable strontium isoscapes
New radiocarbon dates reveal pan-Holocene deposition of rodents at Trouing Jérémie #5, a sinkhole in the western Tiburon Peninsula, Haiti
We present eight new radiocarbon dates for endemic and invasive rodents from Trouing Jérémie #5, a paleontologically-rich sink hole on the Tiburon Peninsula, Haiti. This includes new dates for two species that have been previously directly dated ( Isolobodon portoricensis and Brotomys voratus) as well as three endemic rodents which have no previous direct radiometric dates ( Plagiodontia velozi, Hexolobodon phenax, and Rhizoplagiodontia lemkei). …
Is the damage worth it? Testing handheld XRF as a non-destructive analytical tool for determining biogenic bone and tooth chemistry prior to destructive analyses
Isotopic analysis is destructive and requires that a specimen retains its original (biogenic) chemical composition. A specimen's relative abundance of calcium and phosphorous (Ca/P) or carbonate and phosphate (CO 3 /PO 4 ) is often used to assess preservation. If a specimen's Ca/P or CO 3 /PO 4 is similar to modern specimens, a specimen's isotopic composition may be biogenic. However, most methods for measuring these proxies are destructive. More…
Biology (18 obras) · Ecology (14 obras) · Isotope Analysis in Ecology (12 obras) · Primate Behavior and Ecology (11 obras) · Geography (10 obras) · Ecology (7 obras) · Primate (7 obras) · Archaeology (6 obras) · Isotope analysis (6 obras) · Paleontology (6 obras)