Search results for: Jonathan B. Cohen

Items from 1 to 20 out of 64 results

article

Habitat management to reduce competitive interactions: case study of native and invading cottontails

Drew V. Eline, Jonathan B. Cohen, Christopher M. Whipps, Amanda E. Cheeseman

The Journal of Wildlife Management > 87 > 1 > n/a - n/a

Habitat management recommendations are often based on best available science determined through retroductive and inductive hypotheses. Such recommendations are not frequently tested, potentially resulting in the implementation of unreliable practices for management of imperiled species. The New England cottontail (Sylvilagus transitionalis) is an imperiled shrubland‐obligate species whose recovery...

article

Assessing avian diversity and community composition along a successional gradient in traditional Lacandon Maya agroforests

Tomasz B. Falkowski, José Raúl Vázquez‐Pérez, Adolfo Chankin, Atzin Yetlanezi Campos‐Beltrán, more

Biotropica > 52 > 6 > 1242 - 1252

Evidence regarding the ability of agroforests to conserve biological diversity has been mixed; they tend to maintain avian communities with species richness similar to that of undisturbed forest ecosystems but generally do not completely preserve community composition. Using a combination of occupancy modeling and non‐metric multidimensional scaling on point‐count data, we assessed changes in avian...

article

Red Fox Use of Landscapes with Nesting Shorebirds

Michelle L. Stantial, Jonathan B. Cohen, Abigail J. Darrah, Shannon Farrell, more

The Journal of Wildlife Management > 84 > 8 > 1536 - 1547

Predation of nests and young is one of the limiting factors in the conservation of birds; understanding environmental covariates of predator distribution can assist with decisions regarding the best management strategies to reduce predation risk. The habitat of beach‐nesting birds is often reshaped by storms in ways that may affect nest predation, such as by flattening vegetated dunes where mammals...

article

Framework for quantifying population responses to disturbance reveals that coastal birds are highly resilient to hurricanes

Christopher R. Field, Katharine J. Ruskin, Jonathan B. Cohen, Thomas P. Hodgman, more

Ecology Letters > 22 > 12 > 2039 - 2048

Changes in the frequency and severity of extreme weather may introduce new threats to species that are already under stress from gradual habitat loss and climate change. We provide a probabilistic framework that quantifies potential threats by applying concepts from ecological resilience to single populations. Our approach uses computation to compare disturbance–impacted projections to a population's...

article

Migratory shorebird adheres to Bergmann's Rule by responding to environmental conditions through the annual lifecycle

Daniel Gibson, Angela D. Hornsby, Mary B. Brown, Jonathan B. Cohen, more

Ecography > 42 > 9 > 1482 - 1493

The inverse relationship between body size and environmental temperature is a widespread ecogeographic pattern. However, the underlying forces that produce this pattern are unclear in many taxa. Expectations are particularly unclear for migratory species, as individuals may escape environmental extremes and reorient themselves along the environmental gradient. In addition, some aspects of body size...

article

Hierarchical population structure of a rare lagomorph indicates recent fragmentation has disrupted metapopulation function

Amanda E. Cheeseman, Jonathan B. Cohen, Christopher M. Whipps, Adrienne I. Kovach, more

Conservation Genetics > 2019 > 20 > 6 > 1237-1249

An understanding of genetic diversity and population structure is important to the conservation of declining species within fragmented habitats. These issues become critical for small, isolated populations, in which stochasticity is a main driver of genetic change and possibly of population extinction. In eastern New York and New England the endemic New England cottontail has declined due to habitat...

article

Value of protected areas to avian persistence across 20 years of climate and land‐use change

Michelle A. Peach, Jonathan B. Cohen, Jacqueline L. Frair, Benjamin Zuckerberg, more

Conservation Biology > 33 > 2 > 423 - 433

Establishing protected areas, where human activities and land cover changes are restricted, is among the most widely used strategies for biodiversity conservation. This practice is based on the assumption that protected areas buffer species from processes that drive extinction. However, protected areas can maintain biodiversity in the face of climate change and subsequent shifts in distributions have...

article

Evaluating response distances to develop buffer zones for staging terns

Melissa A. Althouse, Jonathan B. Cohen, Sarah M. Karpanty, Jeffrey A. Spendelow, more

The Journal of Wildlife Management > 83 > 2 > 260 - 271

Buffer zones, calculated by flight‐initiation distance (FID), are often used to reduce anthropogenic disturbances to wildlife, but FID can vary significantly across life‐history stages. We examined the behavioral effect of potential natural (gulls and shorebirds) and anthropogenic (pedestrians) disturbance sources to staging roseate (Sterna dougallii) and common tern (S. hirundo) flocks from July...

article

Assessing the impacts of oil exploration and restoration on mammals in Murchison Falls Conservation Area, Uganda

Rebecca K. Fuda, Sadie J. Ryan, Jonathan B. Cohen, Joel Hartter, more

African Journal of Ecology > 56 > 4 > 804 - 817

Global energy demand has driven expansion of oil and gas extraction into African protected areas, raising concern about potential deleterious impacts on wildlife. Efforts aim to restore extraction sites to their original condition, but may take many years to be successful. We analysed the impact of human disturbance (road density, distance to border, sound levels and the presence of restored oil drill...

article

Are you seeing this: the impact of steep Trendelenburg position during robot-assisted laparoscopic radical prostatectomy on intraocular pressure: a brief review of the literature

Robert S. Ackerman, Jonathan B. Cohen, Rosemarie E. Garcia Getting, Sephalie Y. Patel

Journal of Robotic Surgery > 2019 > 13 > 1 > 35-40

With the increasing popularity, frequency, and acceptance of the robotic-assisted laparoscopic radical prostatectomy procedure, an awareness of unique intra- and postoperative complications is heightened, including that of increases in intraocular pressure. The steep Trendelenburg positioning required for operative exposure has been shown to increase this value. While the literature is infrequent...

article

Quantifying the importance of geographic replication and representativeness when estimating demographic rates, using a coastal species as a case study

Christopher R. Field, Katharine J. Ruskin, Bri Benvenuti, Alyssa C. Borowske, more

Ecography > 41 > 6 > 971 - 981

Demographic rates are rarely estimated over an entire species range, limiting empirical tests of ecological patterns and theories, and raising questions about the representativeness of studies that use data from a small part of a range. The uncertainty that results from using demographic rates from just a few sites is especially pervasive in population projections, which are critical for a wide range...

article

State uncertainty models and mark‐resight models for understanding non‐breeding site use by Piping Plovers

Jonathan B. Cohen, Sidney B. Maddock, Melissa K. Bimbi, W. Walker Golder, more

Ibis > 160 > 2 > 342 - 354

Conservation of beach‐nesting medium‐distance migrants has focused on breeding areas because protection of nests is more tractable than protection of non‐breeding habitat. As breeding ground management has encountered diminishing returns, interest in understanding threats in non‐breeding areas has increased. However, robust estimates of non‐breeding demographic rates and abundance are generally lacking,...

article

The influence of habitat, tidal stage, temperature, and breeding status on the flight behavior of piping plovers (Charadrius melodus)

Michelle L. Stantial, Jonathan B. Cohen

Journal of Ornithology > 2018 > 159 > 3 > 723-732

Collision with wind turbines is an increasing conservation concern for migratory birds that are already facing many threats. A proliferation of proposals for single-turbine wind projects on U.S. Atlantic beaches where piping plovers nest poses a potential threat to this species. Understanding collision risk requires knowledge of aspects of the flight behavior of species that might be affected by turbines...

article

Robust inference on large‐scale species habitat use with interview data: The status of jaguars outside protected areas in Central America

Lisanne S. Petracca, Jacqueline L. Frair, Jonathan B. Cohen, Ana Patricia Calderón, more

Journal of Applied Ecology > 55 > 2 > 723 - 734

Evaluating range‐wide habitat use by a target species requires information on species occurrence over broad geographic regions, a process made difficult by species rarity, large spatiotemporal sampling domains and imperfect detection. We address these challenges in an assessment of habitat use for jaguars (Panthera onca) outside protected areas in Central America. Occurrence records were acquired...

article

A Bayesian multinomial logistic exposure model for estimating probabilities of competing sources of nest failure

Abigail J. Darrah, Jonathan B. Cohen, Paul M. Castelli

Ibis > 160 > 1 > 23 - 35

Understanding causes of nest loss is critical for the management of endangered bird populations. Available methods for estimating nest loss probabilities to competing sources do not allow for random effects and covariation among sources, and there are few data simulation methods or goodness‐of‐fit (GOF) tests for such models. We developed a Bayesian multinomial extension of the widely used logistic...

article

Single‐visit dynamic occupancy models: an approach to account for imperfect detection with Atlas data

Michelle A. Peach, Jonathan B. Cohen, Jacqueline L. Frair, Ayesha Tulloch

Journal of Applied Ecology > 54 > 6 > 2033 - 2042

Atlas data provide biodiversity information at a relatively fine spatial grain over a broad spatial extent and, increasingly, at multiple points in time, which make them invaluable for understanding processes that affect species distributions over time. The effect of survey effort on species detection has long been appreciated and Atlases typically include survey standards and records of effort,...

article

Synthesis and pharmacological evaluation of neurosteroid photoaffinity ligands

Pavel Y. Savechenkov, David C. Chiara, Rooma Desai, Alexander T. Stern, more

European Journal of Medicinal Chemistry > 2017 > 136 > C > 334-347

Neuroactive steroids are potent positive allosteric modulators of GABA_A receptors (GABA_AR), but the locations of their GABA_AR binding sites remain poorly defined. To discover these sites, we synthesized two photoreactive analogs of alphaxalone, an anesthetic neurosteroid targeting GABA_AR, 11β-(4-azido-2,3,5,6-tetrafluorobenzoyloxy)allopregnanolone, (F4N3Bzoxy-AP) and 11-aziallopregnanolone (11-AziAP)...

article

Evaluating the impact of man-made disasters on imperiled species: Piping plovers and the Deepwater Horizon oil spill

Daniel Gibson, Daniel H. Catlin, Kelsi L. Hunt, James D. Fraser, more

Biological Conservation > 2017 > 212 > PA > 48-62

Even in the presence of environmental safeguards, catastrophic accidents related to anthropogenic activities occur that can result in both immediate and chronic impacts on local biota. However, due to the unplanned nature of catastrophes, studies aimed to identify the effects of these accidents on an ecosystem and its inhabitants often have imperfect study designs that are reactive rather than proactive,...

article

Photoaffinity Labeling of A4B2 Nicotinic Acetylcholine Receptor using [3H]-Labeled Positive Allosteric Modulators

Gordon Ang, Farah Deba, Akash Pandhare, Michael P. Blanton, more

Biophysical Journal > 2017 > 112 > 3 Supplement 1 > 320a

article

Seasonal fecundity is not related to geographic position across a species’ global range despite a central peak in abundance

Katharine J. Ruskin, Matthew A. Etterson, Thomas P. Hodgman, Alyssa C. Borowske, more

Oecologia > 2017 > 183 > 1 > 291-301

The range of a species is determined by the balance of its demographic rates across space. Population growth rates are widely hypothesized to be greatest at the geographic center of the species range, but indirect empirical support for this pattern using abundance as a proxy has been mixed, and demographic rates are rarely quantified on a large spatial scale. Therefore, the texture of how demographic...

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CHARADRIUS MELODUS (6)
PIPING PLOVER (5)
ENDANGERED SPECIES (3)
NEW JERSEY (3)
PHOTOAFFINITY LABELING (3)
SURVIVAL (3)
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CAPE COD (1)
CARDELLINA CANADENSIS (1)
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CHRONOSEQUENCE (1)
CITIZEN SCIENCE (1)
COASTAL BIRDS (1)
COLLISION RISK (1)
COLONIZATION (1)
COMMON TERN (1)
COMPETING RISKS (1)
CONNECTIVITY (1)
CONSERVATION PLANNING (1)
CONTAMINANT EXPOSURE AND EFFECTS–TERRESTRIAL VERTEBRATES DATABASE (1)
DEEPWATER HORIZON OIL SPILL (1)
DIAZIRINE (1)
DISTRIBUCIÓN DE ESPECIES (1)
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DYNAMIC OCCUPANCY (1)
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HEAT CONSERVATION (1)
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HURRICANES (1)
INTERVIEW (1)
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INVASIVE SPECIES (1)
JAGUAR (1)
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Biochemistry (14)
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FEBS Letters (5)
Journal of Medicinal Chemistry (4)
The Journal of Wildlife Management (3)
Ecography (2)
Ibis (2)
Journal of Applied Ecology (2)
Journal of Field Ornithology (2)
Journal of Ornithology (2)
African Journal of Ecology (1)
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Biochimica et Biophysica Acta (BBA)/Protein Structure and Molecular Enzymology (1)
Biological Conservation (1)
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Ecology Letters (1)
Ecotoxicology (1)
Environmental Monitoring and Assessment (1)
European Journal of Medicinal Chemistry (1)
Journal of Molecular Neuroscience (1)
Journal of Robotic Surgery (1)
Neuron (1)
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INFONA - science communication portal

Search results for: Jonathan B. Cohen

Habitat management to reduce competitive interactions: case study of native and invading cottontails

Assessing avian diversity and community composition along a successional gradient in traditional Lacandon Maya agroforests

Red Fox Use of Landscapes with Nesting Shorebirds

Framework for quantifying population responses to disturbance reveals that coastal birds are highly resilient to hurricanes

Migratory shorebird adheres to Bergmann's Rule by responding to environmental conditions through the annual lifecycle

Hierarchical population structure of a rare lagomorph indicates recent fragmentation has disrupted metapopulation function

Value of protected areas to avian persistence across 20 years of climate and land‐use change

Evaluating response distances to develop buffer zones for staging terns

Assessing the impacts of oil exploration and restoration on mammals in Murchison Falls Conservation Area, Uganda

Are you seeing this: the impact of steep Trendelenburg position during robot-assisted laparoscopic radical prostatectomy on intraocular pressure: a brief review of the literature

Quantifying the importance of geographic replication and representativeness when estimating demographic rates, using a coastal species as a case study

State uncertainty models and mark‐resight models for understanding non‐breeding site use by Piping Plovers

The influence of habitat, tidal stage, temperature, and breeding status on the flight behavior of piping plovers (Charadrius melodus)

Robust inference on large‐scale species habitat use with interview data: The status of jaguars outside protected areas in Central America

A Bayesian multinomial logistic exposure model for estimating probabilities of competing sources of nest failure

Single‐visit dynamic occupancy models: an approach to account for imperfect detection with Atlas data

Synthesis and pharmacological evaluation of neurosteroid photoaffinity ligands

Evaluating the impact of man-made disasters on imperiled species: Piping plovers and the Deepwater Horizon oil spill

Photoaffinity Labeling of A4B2 Nicotinic Acetylcholine Receptor using [3H]-Labeled Positive Allosteric Modulators

Seasonal fecundity is not related to geographic position across a species’ global range despite a central peak in abundance

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