Out of the frying pan into the fire: an ecological perspective on evolutionary reversal in life history in plethodontid salamanders (Amphibia: Plethodontidae)

2007 ◽  
Vol 21 (6) ◽  
pp. 703-726 ◽  
Author(s):  
Richard C. Bruce
Insects ◽  
2021 ◽  
Vol 12 (1) ◽  
pp. 48
Author(s):  
Mio Amemiya ◽  
Kôji Sasakawa

Thanatosis, also called death feigning, is often an antipredator behavior. In insects, it has been reported from species of various orders, but knowledge of this behavior in Hymenoptera is insufficient. This study examined the effects of sex, age (0 or 2 days old), temperature (18 or 25 °C), and background color (white, green, or brown) on thanatosis in the braconid parasitoid wasp Heterospilus prosopidis. Thanatosis was more frequent in 0-d-old individuals and in females at 18 °C. The duration of thanatosis was longer in females, but this effect of sex was weaker at 18 °C and in 0-d-old individuals. The background color affected neither the frequency nor duration. These results were compared with reports for other insects and predictions based on the life history of this species, and are discussed from an ecological perspective.


Evolution ◽  
2004 ◽  
Vol 58 (12) ◽  
pp. 2809-2822 ◽  
Author(s):  
Paul T. Chippindale ◽  
Ronald M. Bonett ◽  
Andrew S. Baldwin ◽  
John J. Wiens

Evolution ◽  
2004 ◽  
Vol 58 (12) ◽  
pp. 2809 ◽  
Author(s):  
Paul T. Chippindale ◽  
Ronald M. Bonett ◽  
Andrew S. Baldwin ◽  
John J. Wiens

Zootaxa ◽  
2007 ◽  
Vol 1434 (1) ◽  
pp. 27 ◽  
Author(s):  
J. FALCÓN-ORDAZ ◽  
J. C. WINDFIELD-PÉREZ ◽  
B. MENDOZA-GARFIAS ◽  
G. PARRA-OLEA ◽  
G. PÉREZ-PONCE DE LEÓN

Plethodontid salamanders represent a group of amphibians that show a great evolutionary diversification in México, however no study of their helminth parasites had been conducted thus far. In this paper, we describe Cosmocerca acanthurum n. sp. (Nematoda: Cosmocercidae) from the intestine of the plethodontid salamanders Pseudoeurycea leprosa and Chiropterotriton orculus from Llano Grande and Texcalyacac, Estado de México, in Central México. Cosmocerca acanthurum n. sp. is easily distinguished from all other species of Cosmocerca in that females possess a uniquely spined tail, a character no seen in congeners. In addition, we compiled all the information of helminth parasites of plethodontid salamanders, and we present it in the form of a checklist of both parasite-host, and host-parasite. A brief analysis of the helminth parasite species composition is presented regarding life-history and development characteristics of plethodontids.


2018 ◽  
Vol 28 ◽  
pp. 29-38
Author(s):  
Nicholas S. Gladstone ◽  
Evin T. Carter ◽  
K. Denise Kendall Niemiller ◽  
Lindsey E. Hayter ◽  
Matthew L. Niemiller

Lungless salamanders in the family Plethodontidae exhibit an impressive array of life history strategies and occur in a diversity of habitats, including caves. However, relationships between life history, habitat, and body size remain largely unresolved. During an ongoing study on the demography and life history of the paedomorphic, cave-obligate Berry Cave Salamander (Gyrinophilusgulolineatus, Brandon 1965), we discovered an exceptionally large individual from the type locality, Berry Cave, Roane County, Tennessee, USA. This salamander measured 145 mm in body length and represents not only the largest G.gulolineatus and Gyrinophilus ever reported, but also the largest plethodontid salamander in the United States. We discuss large body size in G.gulolineatus and compare body size in other large plethodontid salamanders in relation to life history and habitat.


1996 ◽  
Vol 77 (8) ◽  
pp. 459-476 ◽  
Author(s):  
Jane F. Gilgun

This article, part 2 of a study that sought to delineate processes leading to good and poor outcomes among individuals who have experienced childhood adversities, uses a life-history interview method to report on three patterns of development found under conditions of adversity: the model of the wounded well, a social-deficits model, and a social-assets model. Some major developmental processes that distinguished those who turned out well from those who did not turn out well were long-term, close personal relationships with peers and adults who modeled prosocial behaviors and values; emotional expressiveness and responsiveness to others; and feeling part of and at home with something outside themselves. This research demonstrates the importance of increasing protective factors and decreasing risk processes.


2019 ◽  
Vol 42 ◽  
Author(s):  
Boris Kotchoubey

Abstract Life History Theory (LHT) predicts a monotonous relationship between affluence and the rate of innovations and strong correlations within a cluster of behavioral features. Although both predictions can be true in specific cases, they are incorrect in general. Therefore, the author's explanations may be right, but they do not prove LHT and cannot be generalized to other apparently similar processes.


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