Results 11 to 20 of about 178 (136)

Metabolic rates in the squareback marsh crab Armases cinereum. [PDF]

open access: yesEcol Evol, 2022
We show that the flatback marsh crab Armases cinereum has relatively high rates of energy use. This likely limits the ability of this species to act as a vector for energy subsidies between salt marsh and forest habitats, as has previously been hypothesized. Abstract Metabolic rate is a basic individual metric that extends beyond the individual to link
Smith N   +4 more
europepmc   +2 more sources

Discrete element models for understanding the biomechanics of fossorial animals. [PDF]

open access: yesEcol Evol, 2022
The dynamics (forces, work, and soil displacements) of burrowing by North American Badger were predicted for different forms of badger claw and manus, using numerical models. The results indicate that the modern manus with 5 digits has indeed advantages.
Gong H   +6 more
europepmc   +2 more sources

On the evolution of trophic position. [PDF]

open access: yesEcol Lett, 2021
We discuss the sources of intraspecific variation in trophic position and highlight that variation among individuals is not only determined by the food web context but also by genetic factors underpinning associated fitness‐relevant traits. We argue that trophic position, measured at the individual level, can be studied as a heritable quantitative ...
Moosmann M   +6 more
europepmc   +2 more sources

Autotomy-induced effects on the locomotor performance of the ghost crabOcypode quadrata [PDF]

open access: yesJournal of Experimental Biology, 2021
ABSTRACTThe voluntary amputation of an appendage, or autotomy, is an effective defensive mechanism that allows an animal to escape aggressive interactions. However, animals may suffer long-term costs that can reduce their overall fitness. Atlantic ghost crabs (Ocypode quadrata) are one of the fastest terrestrial invertebrates, and regularly lose one or
Janne A. Pfeiffenberger, S. Tonia Hsieh
openaire   +2 more sources

Using GPS location data to assess red fox responses to predator exclosure setup and hatching at shorebird nests

open access: yesWildlife Society Bulletin, Volume 47, Issue 2, June 2023., 2023
We used location data from GPS‐collared red foxes (Vulpes vulpes) to examine spatial responses of foxes to predator exclosure setup and hatching at piping plover (Charadrius melodus) nests. We compared the mean distances between red fox locations and piping plover nests, and the proportions of red fox locations within a 100‐m buffer around these nests,
Kathleen M. Black   +6 more
wiley   +1 more source

Piping plover chick ecology following landscape‐level disturbance

open access: yesThe Journal of Wildlife Management, Volume 87, Issue 1, January 2023., 2023
The study of all life stages following substantial landscape disturbing events, such as Hurricane Sandy, is useful to understand how to manage for population persistence. Plover chick habitat selection is affected by vegetation, slope, elevation and density. Maintaining direct access to relatively flat, moist habitats with low vegetation density around
Samantha G. Robinson   +7 more
wiley   +1 more source

Ocypode quadrata

open access: yes, 2021
Ocypode quadrata (Fabricius, 1787) Fig. 16 A, B Cancer quadratus Fabricius, 1787: 315 [type-locality: Jamaica]. Ocypode rhombea Weber, 1795: 92. Ocypode rhombea Fabricius, 1798: 348 [type-locality: unknown]. Ocypode albicans Bosc, 1802: 196 [type-locality: La Caroline]. Ocypode albicans Latreille, 1802: 48.— Rathbun, 1918: 367, pls. 127, 128. Monolepis
Parasram, Nadeshinie   +2 more
openaire   +2 more sources

Why do sea turtle nests fail? Modeling clutch loss across the southeastern United States

open access: yesEcosphere, Volume 13, Issue 3, March 2022., 2022
Abstract Understanding the relative influence of environmental conditions and disturbance types on species' nest success is imperative to our estimation of current and future population trajectories of vulnerable species, especially ectotherms. The reproductive output of oviparous species is highly dependent on the location of a nest in terms of the ...
Marta P. Lyons   +2 more
wiley   +1 more source

Connectivity: insights from the U.S. Long Term Ecological Research Network

open access: yesEcosphere, Volume 12, Issue 5, May 2021., 2021
Abstract Ecosystems across the United States are changing in complex and surprising ways. Ongoing demand for critical ecosystem services requires an understanding of the populations and communities in these ecosystems in the future. This paper represents a synthesis effort of the U.S.
David M. Iwaniec   +26 more
wiley   +1 more source

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