scholarly journals Corrigendum to: Differential habitat use by sympatric species of mouse lemurs across a mangrove–dry forest habitat gradient

2021 ◽  
Author(s):  
Eric F Wuesthoff ◽  
Todd K Fuller ◽  
Christopher Sutherland ◽  
Jason M Kamilar ◽  
Rindrahatsarana Ramanankirahina ◽  
...  
Keyword(s):  
Habitat Use ◽  
Sympatric Species ◽  
Dry Forest ◽  
Forest Habitat ◽  
Habitat Gradient ◽  
Mouse Lemurs

Prolonged Torpor in Goodman’s Mouse Lemur (Microcebus lehilahytsara) from the High-Altitude Forest of Tsinjoarivo, Central-Eastern Madagascar

2020 ◽  
Vol 91 (6) ◽  
pp. 697-710 ◽  
Author(s):  
Jean-Basile Andriambeloson ◽  
Lydia K. Greene ◽  
Marina B. Blanco
Keyword(s):  
High Altitude ◽  
Indirect Evidence ◽  
Sympatric Species ◽  
Dry Forest ◽  
Mouse Lemur ◽  
Data Sampling ◽  
Variable Expression ◽  
Cold Environments ◽  
Mouse Lemurs ◽  
Central Eastern

The nocturnal mouse and dwarf lemurs from Madagascar are known to express heterothermy. Whereas dwarf lemurs (<i>Cheirogaleus</i>) are obligate hibernators, mouse lemurs (<i>Microcebus</i>) can express a great range of heterothermic responses, including daily torpor, prolonged torpor or hibernation, depending on the species, population or individual. Although there is indirect evidence of heterothermy in a handful of mouse lemur species, direct physiological confirmation is currently limited to four: <i>Microcebus berthae</i>(dry forest)<i>, M. ravelobensis</i>(dry forest), <i>M. griseorufus</i>(spiny forest)<i>, M. murinus</i>(dry forest/littoral forest). We studied Goodman’s mouse lemurs (<i>M. lehilahytsara</i>) at the high-altitude rain forest of Tsinjoarivo, central-eastern Madagascar. We captured a total of 45 mouse lemurs during pre- and post-torpor seasons. We recorded body mass and measured tail base circumference, which was used as proxy for fattening. Moreover, using telemetry, we obtained sporadic skin temperature data from a mouse lemur female between March and June. From June 9 to 16, we performed more intensive data sampling and thereby confirmed the expression of prolonged torpor in this female, when skin temperatures consistently displayed values below 25°C for more than 24 h. We documented 3 torpor bouts, 2 of which were interrupted by naturally occurring arousals. Torpor bout duration ranged from approximately 47 to maximally about 69 h. We found similarities between the Goodman’s mouse lemur torpor profile and those known from other species, including the fact that only a portion of any mouse lemur population deposits fat stores and undergoes torpor in a given year. The variable expression of heterothermy in Goodman’s mouse lemurs contrasts with obligatory hibernation displayed by two sympatric species of dwarf lemurs, suggesting cheirogaleids use a range of metabolic strategies to cope with seasonality and cold environments.

Habitat Use by Sminthopsis-Crassicaudata, Planigale-Gilesi and Planigale-Tenuirostris (Marsupialia, Dasyuridae) in Semiarid New-South-Wales

1987 ◽  
Vol 14 (4) ◽  
pp. 385 ◽  
Author(s):  
DG Read
Keyword(s):  
Regression Analysis ◽  
Habitat Use ◽  
Arid Zone ◽  
New South ◽  
New South Wales ◽  
Sympatric Species ◽  
Sminthopsis Crassicaudata ◽  
South Wales ◽  
Soil Cracks ◽  
Habitat Variables

Habitat use by Sminthopsis crassicaudata, Planigale gilesi and P. tenuirostris was investigated in the arid zone of New South Wales. All species showed considerable flexibility in habitat use at all times, and abundance was poorly predicted from easily measured parameters of the habitat. However, evidence was found for separation of microhabitat among these sympatric species. Multiple regression analysis indicated that abundance of S. crassicaudata was negatively associated with height of vegetation and the depth and density of soil cracks, and that of P. gilesi was positively associated with these habitat variables. Plant height was positively associated with abundance of P. tenuirostris and it was the only important predictor for this species. These results are discussed in conjunction with trapping records from other habitats.

scholarly journals Positive interactions expand habitat use and the realized niches of sympatric species

Ecology ◽  
2015 ◽  
Vol 96 (10) ◽  
pp. 2575-2582 ◽  
Author(s):  
Sinead M. Crotty ◽  
Mark D. Bertness
Keyword(s):  
Habitat Use ◽  
Sympatric Species ◽  
Positive Interactions

Foraging-habitat selection by bats at an urban–rural interface: comparison between a successful and a less successful species

2004 ◽  
Vol 82 (7) ◽  
pp. 1157-1164 ◽  
Author(s):  
Joseph E Duchamp ◽  
Dale W Sparks ◽  
John O Whitaker, Jr.
Keyword(s):  
Habitat Selection ◽  
Habitat Use ◽  
Compositional Analysis ◽  
Sympatric Species ◽  
Eptesicus Fuscus ◽  
Foraging Habitat ◽  
Tree Cavities ◽  
Urban Rural ◽  
Regional Population ◽  
Suburban Development

We compared habitat use of two sympatric species of bat in a rural area undergoing suburban development. The two species are similar in diet and foraging-habitat use but differ in current roosting habitat, and exhibit contrasting regional population trends. Evening bat, Nycticeius humeralis (Rafinesque, 1818), populations are declining in central Indiana, whereas big brown bat, Eptesicus fuscus (Beauvois, 1796), populations are increasing. We assessed habitat selection by 22 adult female bats using radiotelemetry and compositional analysis. Eptesicus fuscus used several roosts across the study area; all but one roosted in human-made structures. Nycticeius humeralis clustered roosts within a small group of woodlots; all roosted in tree cavities. Eptesicus fuscus foraged for longer periods of time and nonreproductive individuals of this species had larger foraging ranges than N. humeralis. Both species foraged primarily in agricultural and wooded areas. During foraging, N. humeralis showed greater foraging-site fidelity and a stronger selection for agricultural and wooded areas than E. fuscus. We suggest that N. humeralis in our study area is probably more sensitive to suburban development near their roosts than E. fuscus.

scholarly journals Movement Patterns and Habitat use for Sympatric Species

2021 ◽  
Author(s):  
Elizabeth McAlpine-Bellis ◽  
Kaera L Utsumi ◽  
Kelly M Diamond ◽  
Janine Klein ◽  
Sophia Gilbert-Smith ◽  
...  
Keyword(s):  
Habitat Use ◽  
Great Basin ◽  
Movement Patterns ◽  
Step Length ◽  
Sympatric Species ◽  
Habitat Characteristics ◽  
Foraging Strategies ◽  
Turn Angle ◽  
Visual Predator ◽  
Food Movement

Abstract Background: Movement is an important characteristic of an animal’s ecology, reflecting perception of and response to environmental conditions. To effectively search for food, movement patterns likely depend on habitat characteristics and the sensory systems used to find prey. We examined movements associated with foraging for two sympatric species of lizards inhabiting the Alvord Basin in the Great Basin Desert of southeastern Oregon. The two species have largely overlapping diets but find prey via different sensory cues, which link to their differing foraging strategies — the long-nosed leopard lizard, Gambelia wislizenii, is a visually-oriented predator, while the western whiptail, Aspidoscelis tigris, relies heavily on chemosensory cues to find prey.Methods: Using detailed focal observations, we characterized the habitat use and movement paths of each species. We placed markers at the location of focal animals every minute for the duration of each 30-min observation. Afterwards, we recorded whether each location was in the open or in vegetation, as well as the movement metrics of step length, path length, net displacement, straightness index, and turn angle, and then made statistical comparisons between the two species.Results: The visual forager spent more time in open areas, moved less frequently over shorter distances, and differed in patterns of plant use compared to the chemosensory forager. Path characteristics of step length and turn angle differed between species.Conclusions: The visual predator moved in a way that was consistent with the notion that they require a clear visual path to stalk prey whereas the movement of the chemosensory predator increased their chances of detecting prey by venturing further into vegetation. Sympatric species can partition limited resources through differences in search behavior and habitat use.

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